TY - CHAP AB - We present a concept for quantifying evaluative phrases to later compare rating texts numerically instead of just relying on stars or grades. We achievethis by combining deep learning models in an aspect-based sentiment analysis pipeline along with sentiment weighting, polarity, and correlation analyses that combine deep learning results with metadata. The results provide new insights for the medical field. Our application domain, physician reviews, shows that there are millions of review texts on the Internet that cannot yet be comprehensively analyzed because previous studies have focused on explicit aspects from other domains (e.g., products). We identify, extract, and classify implicit and explicit aspect phrases equally from German-language review texts. To do so, we annotated aspect phrases representing reviews on numerous aspects of a physician, medical practice, or practice staff. We apply the best performing transformer model, XLM-RoBERTa, to a large physician review dataset and correlate the results with existing metadata. As a result, we can show different correlations between the sentiment polarity of certain aspect classes (e.g., friendliness, practice equipment) and physicians’ professions (e.g., surgeon, ophthalmologist). As a result, we have individual numerical scores that contain a variety of information based on deep learning algorithms that extract textual (evaluative) information and metadata from the Web. AU - Kersting, Joschka AU - Geierhos, Michaela ED - Cuzzocrea, Alfredo ED - Gusikhin, Oleg ED - Hammoudi, Slimane ED - Quix, Christoph ID - 46205 SN - 1865-0929 T2 - Data Management Technologies and Applications TI - Towards Comparable Ratings: Quantifying Evaluative Phrases in Physician Reviews VL - 1860 ER - TY - JOUR AU - Ficara, Elena AU - Beall, Jc ID - 46209 IS - 2 JF - History and Philosophy of Logic TI - Hegelian Conjunction, Hegelian Contradiction VL - 44 ER - TY - JOUR AU - Ficara, Elena AU - Priest, Graham ID - 46210 IS - 2 JF - History and Philosophy of Logic TI - The Formalization of Dialectics VL - 44 ER - TY - JOUR AU - Weber, Daniel AU - Schenke, Maximilian AU - Wallscheid, Oliver ID - 46213 JF - IEEE Access KW - General Engineering KW - General Materials Science KW - General Computer Science KW - Electrical and Electronic Engineering SN - 2169-3536 TI - Steady-State Error Compensation for Reinforcement Learning-Based Control of Power Electronic Systems VL - 11 ER - TY - CONF AU - Weber, Daniel AU - Schenke, Maximilian AU - Wallscheid, Oliver ID - 46212 T2 - 2023 International Conference on Future Energy Solutions (FES) TI - Safe Reinforcement Learning-Based Control in Power Electronic Systems ER - TY - JOUR AB - Ernährungsarmut wird als Problem in Deutschland weitgehend vernachlässigt. Von materieller Ernährungsarmut betroffen sind Menschen, denen es aufgrund fehlender finanzieller Mittel nicht möglich ist, sich gesundheitsfördernd zu ernähren. Etwa 3,5 % der Bevölkerung (rund drei Millionen Menschen) sind durch materielle Ernährungsarmut gefährdet. Damit einher geht oft auch soziale Ernährungsarmut, die Menschen von der sozialen Teilhabe ausschließt, die z. B. durch gemeinsames Essen ermöglicht wird. Essen ist nicht nur von Bedeutung für die körperliche Gesundheit, sondern auch zentral für die psychische Gesundheit und das Wohlbefinden sowie für die soziale Zugehörigkeit, was sich wiederum auf die körperliche Gesundheit auswirkt. Die sozialen Funktionen des Essens werden vielfach übersehen – und bei der Berechnung des Regelbedarfs ausgeblendet. Gerade die Corona-Pandemie hat gezeigt, wie fehlende soziale Kontakte und sozialer Ausschluss sich auf die physische, psychische und soziale Gesundheit auswirken können. Aus Sicht des WBAE (Wissenschaftliche Beirat für Agrarpolitik, Ernährung und gesundheitlichen Verbraucherschutz) ist deshalb der integrative Blick auf die materielle und soziale Ernährungsarmut zentral, da sie sich gegenseitig verstärken können. Diese Stellungnahme befasst sich mit der Frage, wie sich die Corona-Pandemie auf von Ernährungsarmut gefährdete Menschen ausgewirkt hat und was daraus gelernt werden kann. Ein wichtiger Aspekt ist der zeitweilige Wegfall von Essensangeboten in Kitas, Schulen, Tafeln und anderen karitativen Essensangeboten, die ein Sicherheitsnetz für Menschen in Ernährungsarmut darstellen. Die Stellungnahme zieht auf dieser Basis auch Schluss-folgerungen zur Ernährungsarmut außerhalb von Pandemiebedingungen. Im Hinblick auf die Notwendigkeit der Vermeidung von Fehlernährung in Haushalten, die von Ernährungsarmut bedroht sind, kommt der WBAE zu dem Schluss, dass diese Risikogruppe während der Pandemie nicht ausreichend im Fokus der Maßnahmen zur Abmilderung der Pandemiefolgen stand. Dies zeigt sich schon daran, dass kaum Daten erhoben wurden. Deutschland verfügt über kein klares Indikatoren- und Zielsystem und kein Monitoring zur Ernährungsarmut. Die wenigen vorhandenen Daten weisen auf problematische Entwicklungen hin. Insgesamt wurden durch den Bund sehr umfangreiche Mittel zur Bewältigung der wirtschaftlichen und sozialen Folgen der Corona-Pandemie und zur Einkommenssicherung während der Pandemie eingesetzt. Dies ist unter dem Blickwinkel „Ernährungsarmut” positiv zu bewerten. Es ist davon auszugehen, dass diese Maßnahmen verhindert haben, dass noch mehr Haushalte von Ernährungsarmut betroffen waren. Insgesamt zeigt die Analyse jedoch, dass es kaum gezielte Maßnahmen gab, um den Ausfall von Kita- und Schulernährung durch alternative Formen der Bereitstellung von Lebensmitteln oder einer warmen Mahlzeit aufzufangen. Maßnahmen auf Bundesebene fehlten, um Länder, Kommunen und nicht-staatliche Organisationen dabei zu unterstützen. Auswertungen der Pandemiemaßnahmen vergleichbarer Länder zeigen, dass dort schnelle und flexible Maßnahmen zur Bereitstellung von Lebensmitteln eine wichtige Rolle gespielt haben, um armutsgefährdete Haushalte zu unterstützen. In Deutschland wurden vorwiegend finanzielle Transfers genutzt, z. T. zeitlich verzögert und wenig zielgruppenspezifisch. Vor diesem Hintergrund hat der WBAE mögliche Maßnahmen gegen Ernährungsarmut – in Krisen, aber auch generell – untersucht: (1) finanzielle Transfers (einmalig oder fortlaufend), (2) Lebensmittelgutscheine („Voucher“), (3) Lebensmittelpakete und (4) warme Mahlzeiten, wobei die letzten beiden Optionen jeweils zur Abholung oder zur Auslieferung angeboten werden können. Die untersuchten internationalen Beispiele zeigen Möglichkeiten, wie z. T. mit schnellen und teilweise innovativen Ansätzen auf Lockdown-Maßnahmen reagiert wurde. Im Grundsatz spricht aus Sicht des WBAE aber vieles für das deutsche System zur Bekämpfung der Ernährungsarmut, das im Kern auf einem Bürgergeld beruht. Ein solches Bürgergeld muss jedoch ausreichend sein, um materielle und soziale Ernährungsarmut zu vermeiden. Die aktuellen, im Bürgergeld für Essen und Getränke zur Verfügung stehenden Beträge entsprechen allerdings nicht diesem Anspruch. Bei der Einführung des Bürgergelds im Jahr 2023 wurde zwar zeitnah auf die hohe Inflation reagiert. Die Berechnungsmethodik für die Bedarfsermittlung wurde aber nicht angepasst, sodass der Regelsatz nach wie vor nicht für eine gesundheitsfördernde Ernährung ausreicht. Die soziale Funktion von Ernährung wird bei der Berechnung des Regelsatzes nicht berücksichtigt. Um bei akutem Handlungsbedarf, wie z. B. auch bei der derzeitigen Inflation, schneller reagieren zu können, sollten außerdem Systeme zur Auszahlung sozial differenzierter „Krisentransfers” an vulnerable Haushalte mit geringem Verwaltungsaufwand ermöglicht werden. Darüber hinaus sollte für den zentralen Bereich der Kinder-ernährung der Schutz einer adäquaten Grundsicherung durch einen Systemwechsel zu einer integrativen, beitragsfreien und somit nicht-diskriminierenden Kita- und Schulverpflegung ergänzt werden, die zudem den DGE-Qualitätsstandards entspricht. Schließlich sollte der Staat privates, ehrenamtliches Engagement ergänzend fördern, z. B. durch Infrastrukturunterstützung bei karitativen Essensangeboten. Eine Herausforderung der Gestaltung von karitativen Lebensmittelangeboten besteht darin, dass sie oft als stigmatisierend und beschämend wahrgenommen werden und der Nachweis eines Anspruches teils schwierig ist. Zudem bestehen oft nur wenige Wahlmöglichkeiten, sodass individuelle Präferenzen oder Unverträglichkeiten nur sehr eingeschränkt berücksichtigt werden können. Im Hinblick auf die soziale Dimension der Ernährung kommt hinzu, dass wichtige soziale Funktionen des Essens, wie das gemeinsame Essen, also Kommensalität, nicht oder nur sehr eingeschränkt ermöglicht wird. Auch bleiben diejenigen, die versorgt werden, dabei meist unter sich. Vor dem Hintergrund dieser Gesamteinschätzung empfiehlt der WBAE die folgenden, in Abbildung Z 1 dargestellten Maßnahmen (siehe Beitrag). Zusammenfassend betont der WBAE die in Deutschland weiterhin unterschätzten Risiken materieller und sozialer Ernährungsarmut. Im Rahmen der geplanten Nationalen Ernährungsstrategie der Bundesregierung sollte dem Thema Ernährungsarmut aus Sicht des WBAE eine herausgehobene Bedeutung zugemessen werden. AU - Birner, Regina AU - Linseisen, Jakob AU - Arens-Azevedo, Ulrike AU - Balmann, Alfons AU - Biesalski, Hans Konrad AU - Bosy-Westphal, Anja AU - Buyken, Anette AU - Döring, Thomas AU - Feindt, Peter AU - Götz, Kay-Uwe AU - Iweala, Sarah AU - Martínez, José AU - Nieberg, Hiltrud AU - Nöthlings, Ute AU - Pischetsrieder, Monika AU - Renner, Britta AU - Spiller, Achim AU - Voget-Kleschin, Lieske AU - Weingarten, Peter AU - Wesseler, Justus AU - Wieck, Christine ID - 46214 JF - Berichte über Landwirtschaft TI - Ernährungsarmut unter Pandemiebedingungen ER - TY - JOUR AU - Renner, Britta AU - Buyken, Anette AU - Gedrich, Kurt AU - Lorkowski, Stefan AU - Watzl, Bernhard AU - Linseisen, Jakob AU - Daniel, Hannelore AU - Conrad, Johanna AU - Ferrario, Paola G. AU - Holzapfel, Christina AU - Leitzmann, Michael AU - Richter, Margrit AU - Simon, Marie-Christine AU - Sina, Christian AU - Wirsam, Jan ID - 46217 JF - Advances in Nutrition KW - Nutrition and Dietetics KW - Medicine (miscellaneous) KW - Food Science SN - 2161-8313 TI - Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems ER - TY - CONF AU - Kaufhold, Marc-André AU - Bayer, Markus AU - Bäumler, Julian AU - Reuter, Christian AU - Stieglitz, Stefan AU - Basyurt, Ali Sercan AU - Mirbabaie, Milad AU - Fuchß, Christoph AU - Eyilmez, Kaan ID - 46216 T2 - Mensch und Computer TI - CYLENCE: Strategies and Tools for Cross-Media Reporting, Detection, and Treatment of Cyberbullying and Hatespeech in Law Enforcement Agencies ER - TY - GEN AU - Lienen, Christian AU - Nowosad, Alexander Philipp AU - Platzner, Marco ID - 46229 TI - Mapping and Optimizing Communication in ROS 2-based Applications on Configurable System-on-Chip Platforms ER - TY - GEN AU - N., N. ID - 46221 TI - Improving the End-of-Line Test of Custom-Built Geared Motors using Clustering based on Neural Networks ER - TY - JOUR AU - Demir, Caglar AU - Ngonga Ngomo, Axel-Cyrille ID - 46243 JF - ECML-PKDD TI - Clifford Embeddings – A Generalized Approach for Embedding in Normed Algebras ER - TY - JOUR AU - Demir, Caglar AU - Ngonga Ngomo, Axel-Cyrille ID - 46251 JF - International Joint Conference on Artificial Intelligence TI - Neuro-Symbolic Class Expression Learning ER - TY - JOUR AU - Ma, Yulai AU - Mattiolo, Davide AU - Steffen, Eckhard AU - Wolf, Isaak Hieronymus ID - 46256 IS - 3 JF - SIAM Journal on Discrete Mathematics KW - General Mathematics SN - 0895-4801 TI - Pairwise Disjoint Perfect Matchings in r-Edge-Connected r-Regular Graphs VL - 37 ER - TY - CONF AU - Meier, Jana AU - Vogelsang, Christoph AU - Küth, Simon AU - Scholl , Daniel AU - Watson, Christina AU - Seifert, Andreas ID - 46261 TI - Welche Rolle spielt eine reflexive Haltung für eine qualitätsvolle Unterrichtsreflexion? – Zusammenhänge zwischen einer quasi-experimentellen Einstellung und der Reflexionsperformanz von Lehramtsstudierenden [Einzelbeitrag]. ER - TY - CONF AU - Scholl, Daniel AU - Küth, Simon AU - Vogelsang, Christoph AU - Meier, Jana AU - Watson, Christina AU - Seifert, Andreas ID - 46262 TI - Das Unterrichtsplanungsprinzip der Interdependenz – Eine netzwerkanalytische Untersuchung der Begründungsstrukturen beim Planungsentscheiden [Einzelbeitrag]. ER - TY - CONF AU - Scholl, Daniel AU - Vogelsang, Christoph AU - Küth, Simon AU - Meier, Jana AU - Watson, Christina AU - Seifert, Andreas ID - 46263 TI - Eine reflexive Haltung als Grundlage einer hochwertigen Unterrichtsreflexion? Zusammenhänge zwischen einer quasi-experimentellen Einstellung zur Reflexion und der Reflexionsperformanz von Lehramtsstudierenden [Einzelbeitrag]. ER - TY - GEN ED - Meier, Jana ED - Küth, Simon ED - Scholl , Daniel ED - Vogelsang, Christoph ED - Watson, Christina ID - 46260 TI - Der Zyklus von Planung und Reflexion. Zusammenhänge zwischen der generischen Unterrichtsplanungsfähigkeit und der Reflexionskompetenz angehender Lehrkräfte. ER - TY - CONF AB - State-of-the-art LLC resonant converters use MOSFETs in their inverter stage, which allows high switching frequencies and thus the use of compact magnetic components. The large parasitic output capacitance and the poor reverse-recovery behaviour of the inherent body diode of high-voltage (600 V) silicon MOSFETs require soft switching, i.e. zero-voltage switching (ZVS). Otherwise, the high turn-on switching losses would lead to excessive heating and ultimately to the destruction of the switch. Therefore, MOSFET-based LLC converters are operated in the so-called inductive region only, which enables ZVS. The use of robust and cost-effective IGBTs instead of MOSFETs is particularly advantageous for automotive applications, since in addition to high reliability low costs are an important objective here. Since IGBTs are characterized by dominant turn-off losses and generally higher switching losses compared to MOSFETs, the aim is to operate them with zero-current switching (ZCS) and at low switching frequencies below the resonance frequency. In this region also the voltage transfer characteristic is steeper, which qualifies for applications with a strongly varying input-to-output voltage ratio, such as given for automotive on-board DC-DC converters connecting the (high-voltage) traction battery with the (12 V) auxiliary battery. In this paper, a stress value analysis based on a switched-model simulation is used to design a ZCS LLC converter and take advantage of the mentioned benefits of IGBTs as well as of the steeper voltage transfer characteristic. Within this operation region below the resonance frequency, however, a new phenomenon of several current pulses occurring during a single switching period through the rectifier components may appear. Generally, in applications with high output currents a synchronous rectifier (SR) is often used to keep the conduction losses of the rectifier stage at a moderate level: Low-voltage MOSFETs, which actively need to be gated synchronously to the polarity of the current pulses, are employed then instead of more lossy rectifier diodes. However, standard SR driver ICs have been shown to be unable to properly rectify the multi-pulse output currents of the proposed LLC operation, resulting in high conduction losses of the rectifier stage. A cost-effective hardware concept is presented which ensures proper rectification by using standard SR-ICs that are actively overdriven by the converter’s central microcontroller. A 2 kW prototype for an EV on-board DC-DC converter was built to show the effectiveness of the method, documenting an increase in efficiency by up to 4.1 % compared to a purely SR-IC-based solution. Overall efficiency is very similar to that of a conventional (MOSFET-based) LLC converter so that the ZCS-operated LLC IGBT-converter represents a cost-effective alternative, which even shows 10 % less worst-case losses. AU - Urbaneck, Daniel AU - Schafmeister, Frank AU - Böcker, Joachim ID - 46269 KW - LLC Converter KW - IGBT KW - ZCS KW - Synchronous Rectification T2 - PCIM Europe 2023 TI - Advanced Synchronous Rectification for an IGBT-Based ZCS LLC Converter with High Output Currents for a 2 kW Automotive DC-DC Stage ER - TY - CONF AB - The computation of electron repulsion integrals (ERIs) over Gaussian-type orbitals (GTOs) is a challenging problem in quantum-mechanics-based atomistic simulations. In practical simulations, several trillions of ERIs may have to be computed for every time step. In this work, we investigate FPGAs as accelerators for the ERI computation. We use template parameters, here within the Intel oneAPI tool flow, to create customized designs for 256 different ERI quartet classes, based on their orbitals. To maximize data reuse, all intermediates are buffered in FPGA on-chip memory with customized layout. The pre-calculation of intermediates also helps to overcome data dependencies caused by multi-dimensional recurrence relations. The involved loop structures are partially or even fully unrolled for high throughput of FPGA kernels. Furthermore, a lossy compression algorithm utilizing arbitrary bitwidth integers is integrated in the FPGA kernels. To our best knowledge, this is the first work on ERI computation on FPGAs that supports more than just the single most basic quartet class. Also, the integration of ERI computation and compression it a novelty that is not even covered by CPU or GPU libraries so far. Our evaluation shows that using 16-bit integer for the ERI compression, the fastest FPGA kernels exceed the performance of 10 GERIS ($10 \times 10^9$ ERIs per second) on one Intel Stratix 10 GX 2800 FPGA, with maximum absolute errors around $10^{-7}$ - $10^{-5}$ Hartree. The measured throughput can be accurately explained by a performance model. The FPGA kernels deployed on 2 FPGAs outperform similar computations using the widely used libint reference on a two-socket server with 40 Xeon Gold 6148 CPU cores of the same process technology by factors up to 6.0x and on a new two-socket server with 128 EPYC 7713 CPU cores by up to 1.9x. AU - Wu, Xin AU - Kenter, Tobias AU - Schade, Robert AU - Kühne, Thomas AU - Plessl, Christian ID - 43228 T2 - 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM) TI - Computing and Compressing Electron Repulsion Integrals on FPGAs ER - TY - JOUR AB - The non-orthogonal local submatrix method applied to electronic structure–based molecular dynamics simulations is shown to exceed 1.1 EFLOP/s in FP16/FP32-mixed floating-point arithmetic when using 4400 NVIDIA A100 GPUs of the Perlmutter system. This is enabled by a modification of the original method that pushes the sustained fraction of the peak performance to about 80%. Example calculations are performed for SARS-CoV-2 spike proteins with up to 83 million atoms. AU - Schade, Robert AU - Kenter, Tobias AU - Elgabarty, Hossam AU - Lass, Michael AU - Kühne, Thomas AU - Plessl, Christian ID - 45361 JF - The International Journal of High Performance Computing Applications KW - Hardware and Architecture KW - Theoretical Computer Science KW - Software SN - 1094-3420 TI - Breaking the exascale barrier for the electronic structure problem in ab-initio molecular dynamics ER - TY - JOUR AB - Site-controlled Ga droplets on AlGaAs substrates are fabricated using area-selective deposition of Ga through apertures in a mask during molecular beam epitaxy (MBE). The Ga droplets can be crystallized into GaAs quantum dots using a crystallization step under As flux. In order to model the complex process, including the masked deposition of the droplets and a reduction of their number during a thermal annealing step, a multiscale kinetic Monte Carlo (mkMC) simulation of self-assembled Ga droplet formation on AlGaAs is expanded for area-selective deposition. The simulation has only two free model parameters: the activation energy for surface diffusion and the activation energy for thermal escape of adatoms from a droplet. Simulated droplet numbers within the opening of the aperture agree quantitatively with the experimental results down to the perfect site-control, with one droplet per aperture. However, the model parameters are different compared to those of the self-assembled droplet growth. We attribute this to the presence of the mask in close proximity to the surface, which modifies the local process temperature and the As background. This approach also explains the dependence of the model parameters on the size of the aperture. AU - Feddersen, Stefan AU - Zolatanosha, Viktoryia AU - Alshaikh, Ahmed AU - Reuter, Dirk AU - Heyn, Christian ID - 46278 IS - 3 JF - Nanomaterials KW - General Materials Science KW - General Chemical Engineering SN - 2079-4991 TI - Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets VL - 13 ER - TY - JOUR AU - Sieland, Benedikt AU - Stahn, Marcel AU - Schoch, Roland AU - Daniliuc, Constantin AU - Spicher, Sebastian AU - Grimme, Stefan AU - Hansen, Andreas AU - Paradies, Jan ID - 46277 JF - Angewandte Chemie International Edition KW - General Chemistry KW - Catalysis SN - 1433-7851 TI - Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs ER - TY - CONF AU - Clausing, Lennart AU - Guetattfi, Zakarya AU - Kaufmann, Paul AU - Lienen, Christian AU - Platzner, Marco ID - 45913 T2 - Proceedings of the 19th International Symposium on Applied Reconfigurable Computing (ARC) TI - On Guaranteeing Schedulability of Periodic Real-time Hardware Tasks under ReconOS64 ER - TY - CHAP AU - Tophinke, Doris ED - Feilke, Helmuth ID - 46099 T2 - Zwischen Fake und Fakt TI - "Tankrabatt" und "Freiheitsenergie". Wie der Blog "neusprech.org" politische Euphemismen entlarvt VL - 300 ER - TY - JOUR AU - Merten, Marie-Luis AU - Wever, Marcel AU - Tophinke, Doris AU - Geierhos, Michaela AU - Hüllermeier, Eyke ID - 45673 JF - International Journal of Corpus Linguistics TI - Annotation uncertainty in the context of grammatical change ER - TY - THES AU - Tornede, Alexander ID - 45780 TI - Advanced Algorithm Selection with Machine Learning: Handling Large Algorithm Sets, Learning From Censored Data, and Simplyfing Meta Level Decisions ER - TY - THES AU - Spiess-Bru, Clarissa ID - 46296 TI - Information Asymmetry and Gendered Behavior in Organizations and Digital Markets ER - TY - CONF AB - A frequency-flexible Nyquist pulse synthesizer is presented with optical pulse bandwidths up to fopt=100 GHz and repetition rates equal to fopt/9, fabricated in an electronic-photonic co-integrated platform utilizing linear on-chip drivers. AU - Kress, Christian AU - Schwabe, Tobias AU - Silberhorn, Christine AU - Scheytt, J. Christoph ID - 45578 T2 - Conference on Lasers and Electro-Optics (CLEO) 2023 TI - Generation of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a Silicon Electronic-Photonic Platform ER - TY - JOUR AU - Homt, Martina AU - Bloh, Bea ID - 46354 IS - 1 JF - Lehrerbildung auf dem Prüfstand TI - Der formelle Diskurs Forschenden Lernens in der Lehrerbildung. Ein Blick zurück nach vorn VL - 16 ER - TY - CHAP AU - Ksouri-Gerwien, Christoph AU - Vorbohle, Christian ED - Schallmo, D.R.A. ED - Kundisch, Dennis ED - Lang, K. ID - 37704 T2 - Digitale Plattformen und Ökosysteme im B2B-Bereich TI - Anwendung von System Dynamics zur Geschäftsmodellinnovation in einem B2B-Ökosystem ER - TY - CONF AB - Effect chain modelling is a method for creating information models for impact analyses of changes in system elements. For the estimation of change propagation, dependencies between requirements must be detected. The high number of require- ment dependencies in the engineering of complex technical systems results in the need for automation. In a study, it was shown that transformer models (BERT) are suitable for the automated dependency analysis of requirements. However, there are currently deficits in the applicability of the models for different projects without an extensive and heterogeneous training database. This paper investigates how active learning can be used to train BERT models (active-BERT) in order to increase the performance of the models for classifying requi- rement dependencies of projects with heterogeneous require- ments. The results show that the performance of the models increases significantly through active learning. Through active- BERT, engineers are enabled to model effect chains efficiently and to handle requirement changes effectively. AU - Gräßler, Iris AU - Preuß, Daniel ED - Hölzle, Katharina ED - Kreimeyer, Matthias ED - Roth, Daniel ED - Maier, Thomas ED - Riedel, Oliver ID - 45661 SN - 2364-4885 T2 - Stuttgarter Symposium für Produktentwicklung SSP 2023 TI - Automatisierte Abhängigkeitsanalyse von Anforderungen zur Wirkkettenmodellierung ER - TY - BOOK AU - Fuchs, Christian ID - 42949 SN - 9781032362724 TI - Digital Democracy and the Digital Public Sphere VL - 6 ER - TY - GEN AB - Effective photoinduced charge transfer makes molecular bimetallic assemblies attractive for applications as active light induced proton reduction systems. For a more sustainable future, development of competitive base metal dyads is mandatory. However, the electron transfer mechanisms from the photosensitizer to the proton reduction catalyst in base metal dyads remain so far unexplored. We study a Fe-Co dyad that exhibits photocatalytic H2 production activity using femtosecond X-ray emission spectroscopy, complemented by ultrafast optical spectroscopy and theoretical time-dependent DFT calculations, to understand the electronic and structural dynamics after photoexcitation and during the subsequent charge transfer process from the FeII photosensitizer to the cobaloxime catalyst. Using this novel approach, the simultaneous measurement of the transient Kalpha X-ray emission at the iron and cobalt K-edges in a two-colour experiment is enabled making it possible to correlate the excited state dynamics to the electron transfer processes. The methodology, therefore, provides a clear and direct spectroscopic evidence of the Fe->Co electron transfer responsible for the proton reduction activity. AU - Nowakowski, Michał AU - Huber-Gedert, Marina AU - Elgabarty, Hossam AU - Kubicki, Jacek AU - Kertem, Ahmet AU - Lindner, Natalia AU - Khakhulin, Dimitry AU - Lima, Frederico Alves AU - Choi, Tae-Kyu AU - Biednov, Mykola AU - Piergies, Natalia AU - Zalden, Peter AU - Kubicek, Katerina AU - Rodriguez-Fernandez, Angel AU - Salem, Mohammad Alaraby AU - Kühne, Thomas AU - Gawelda, Wojciech AU - Bauer, Matthias ID - 40982 T2 - arxiv TI - Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad ER - TY - CONF AB - The article shows how to learn models of dynamical systems from data which are governed by an unknown variational PDE. Rather than employing reduction techniques, we learn a discrete field theory governed by a discrete Lagrangian density $L_d$ that is modelled as a neural network. Careful regularisation of the loss function for training $L_d$ is necessary to obtain a field theory that is suitable for numerical computations: we derive a regularisation term which optimises the solvability of the discrete Euler--Lagrange equations. Secondly, we develop a method to find solutions to machine learned discrete field theories which constitute travelling waves of the underlying continuous PDE. AU - Offen, Christian AU - Ober-Blöbaum, Sina ED - Nielsen, F ED - Barbaresco, F ID - 42163 KW - System identification KW - discrete Lagrangians KW - travelling waves T2 - Geometric Science of Information TI - Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves VL - 14071 ER - TY - JOUR AB - The principle of least action is one of the most fundamental physical principle. It says that among all possible motions connecting two points in a phase space, the system will exhibit those motions which extremise an action functional. Many qualitative features of dynamical systems, such as the presence of conservation laws and energy balance equations, are related to the existence of an action functional. Incorporating variational structure into learning algorithms for dynamical systems is, therefore, crucial in order to make sure that the learned model shares important features with the exact physical system. In this paper we show how to incorporate variational principles into trajectory predictions of learned dynamical systems. The novelty of this work is that (1) our technique relies only on discrete position data of observed trajectories. Velocities or conjugate momenta do not need to be observed or approximated and no prior knowledge about the form of the variational principle is assumed. Instead, they are recovered using backward error analysis. (2) Moreover, our technique compensates discretisation errors when trajectories are computed from the learned system. This is important when moderate to large step-sizes are used and high accuracy is required. For this, we introduce and rigorously analyse the concept of inverse modified Lagrangians by developing an inverse version of variational backward error analysis. (3) Finally, we introduce a method to perform system identification from position observations only, based on variational backward error analysis. AU - Ober-Blöbaum, Sina AU - Offen, Christian ID - 29240 JF - Journal of Computational and Applied Mathematics KW - Lagrangian learning KW - variational backward error analysis KW - modified Lagrangian KW - variational integrators KW - physics informed learning SN - 0377-0427 TI - Variational Learning of Euler–Lagrange Dynamics from Data VL - 421 ER - TY - JOUR AB - The numerical solution of an ordinary differential equation can be interpreted as the exact solution of a nearby modified equation. Investigating the behaviour of numerical solutions by analysing the modified equation is known as backward error analysis. If the original and modified equation share structural properties, then the exact and approximate solution share geometric features such as the existence of conserved quantities. Conjugate symplectic methods preserve a modified symplectic form and a modified Hamiltonian when applied to a Hamiltonian system. We show how a blended version of variational and symplectic techniques can be used to compute modified symplectic and Hamiltonian structures. In contrast to other approaches, our backward error analysis method does not rely on an ansatz but computes the structures systematically, provided that a variational formulation of the method is known. The technique is illustrated on the example of symmetric linear multistep methods with matrix coefficients. AU - McLachlan, Robert AU - Offen, Christian ID - 29236 IS - 1 JF - Journal of Geometric Mechanics KW - variational integrators KW - backward error analysis KW - Euler--Lagrange equations KW - multistep methods KW - conjugate symplectic methods TI - Backward error analysis for conjugate symplectic methods VL - 15 ER - TY - JOUR AB - Recently, Hamiltonian neural networks (HNN) have been introduced to incorporate prior physical knowledge when learning the dynamical equations of Hamiltonian systems. Hereby, the symplectic system structure is preserved despite the data-driven modeling approach. However, preserving symmetries requires additional attention. In this research, we enhance the HNN with a Lie algebra framework to detect and embed symmetries in the neural network. This approach allows to simultaneously learn the symmetry group action and the total energy of the system. As illustrating examples, a pendulum on a cart and a two-body problem from astrodynamics are considered. AU - Dierkes, Eva AU - Offen, Christian AU - Ober-Blöbaum, Sina AU - Flaßkamp, Kathrin ID - 37654 IS - 6 JF - Chaos SN - 1054-1500 TI - Hamiltonian Neural Networks with Automatic Symmetry Detection VL - 33 ER - TY - CHAP AU - Dehmel, Lukas ED - Kondratjuk, Maria ID - 46473 T2 - Grundlagen der Erwachsenen- und Weiterbildungsforschung TI - 6.3.2 Medienpädagogische Professionalisierung in der beruflichen Weiterbildung. Eine Studie aus Perspektive der biografischen Medienforschung. Steckbrief zur Dissertation. ER - TY - JOUR AU - Unterstell, Rembert ID - 46471 IS - 1 JF - german research – Magazine of the Deutsche Forschungsgemeinschaft TI - „Allowing the Economy to Breathe Even During the Crisis“ – Interview with Tax Expert Caren Sureth-Sloane ER - TY - GEN ED - Ade, Larissa ED - Breiwe, René ED - Dehmel, Lukas ED - Wolf, Karsten D. ED - Rummler, Klaus ED - Dander, Valentin ED - Grünberger, Nina ED - Schiefner-Rohs, Mandy ID - 46474 IS - 53 TI - ENT | GRENZ | UNGEN in der Medienpädagogik. Perspektiven im Anschluss an den 28. Kongress der DGfE ER - TY - JOUR AU - Dehmel, Lukas AU - Meister, Dorothee AU - Gerhardts, Lara ID - 46472 IS - 53 JF - Zeitschrift MedienPädagogik TI - Die Entgrenzung von Kommunikationskulturen in Lehrpersonenkollegien. Reflexion einer unbeabsichtigten Begleiterscheinung der Arbeit mit Tablets. ER - TY - CHAP AB - Dieser Beitrag bietet verschiedene professionelle Perspektiven auf den popmusikalischen Kommunikationsprozesses innerhalb postdigitaler Popmusikjournalismuskulturen. Neben einer wissenschaftlichen Rahmung, Übersicht und Strukturierung des Untersuchungsfelds und des Forschungsstands versammelt der Beitrag multiperspektivische Thesen, die journalistische Praktiken und ihre Reflexionen von Produktion über Distribution und Rezeption/Nutzung bis zur Weiterverarbeitung inklusive Archivierung/Institutionalisierung/Musealisierung aufgreifen und herausstellen. Die aufgestellten Thesen gelten als Aufschlag für die zukünftige Analyse des so fundamentalen und doch auch immer wieder übersehenen Berufsfeldes und seiner Rezeption zwischen Faszination und Exploitation. AU - Godlewsky, Tanja AU - Jacke, Christoph AU - Roenneke, Stefanie AU - Venker, Thomas ED - Moormann, Peter ED - Ruth, Nicolas ID - 46475 SN - 2626-6199 T2 - Musik und Internet. Aktuelle Phänomene populärer Kulturen TI - Pop(musik)journalismen zwischen Printmagazin-Krise und postdigitaler Realität – Forschungsüberblick und multiperspektivische Thesen ER - TY - CONF AB - Abstract. Increasing resource efficiency is a major challenge and affects almost every aspect of social and economic life. The mobility sector in particular is responsible for a large share of primary energy consumption and is increasingly in the focus of public interest. One possibility to adress these challenges is to reduce the vehicle weight by means of lightweight construction technologies such as multi-material systems. These assemblies consist of workpieces with different mechanical and geometrical properties, which poses a major challenge for joining technology. Mechanical joining processes such as semi-tubular self-piercing riveting are often used in the production of these assemblies, but due to their process characteristics, they are rigid and can only react to changing process variables to a limited extent. One way to increase the versatility of self-piercing riveting is to superimpose a tumbling kinematics on the punch. During tumbling, an angular offset of the punch axis to the tool axis is set and the contact area between punch and workpiece is reduced. In this work, investigations were carried out to determine how the tumbling strategy, consisting of the parameters tumbling angle, tumbling onset and tumbling kinematics, affects the material flow of the rivet element. For this purpose, experimental tests are conducted with the typical materials of conventional multi-material systems and the geometric joint formations are determined by means of macrographs. AU - Wituschek, S. AU - Elbel, L. AU - Lechner, M. ID - 46476 SN - 2474-395X T2 - Materials Research Proceedings TI - Versatile self-piercing riveting with a tumbling superimposed punch ER - TY - JOUR AU - Lange, Nina Amelie AU - Schapeler, Timon AU - Höpker, Jan Philipp AU - Protte, Maximilian AU - Bartley, Tim ID - 46468 IS - 2 JF - Physical Review A SN - 2469-9926 TI - Degenerate photons from a cryogenic spontaneous parametric down-conversion source VL - 108 ER - TY - JOUR AU - Bartelheimer, Christian AU - zur Heiden, Philipp AU - Berendes, Carsten Ingo AU - Beverungen, Daniel ID - 46478 JF - European Journal of Information Systems KW - Library and Information Sciences KW - Information Systems SN - 0960-085X TI - Designing digital actor engagement platforms for local high streets: an action design research study ER - TY - THES AB - Ever increasing demands on the performance of microchips are leading to ever more complex semiconductor technologies with ever shrinking feature sizes. Complex applications with high demands on safety and reliability, such as autonomous driving, are simultaneously driving the requirements for test and diagnosis of VLSI circuits. Throughout the life cycle of a microchip, uncertainties occur that affect its timing behavior. For example, weak circuit structures, aging effects, or process variations can lead to a change in the timing behavior of the circuit. While these uncertainties do not necessarily lead to a change of the functional behavior, they can lead to a reliability problem. With modular and hybrid compaction two test instruments are presented in this work that can be used for X-tolerant test response compaction in the built-in Faster-than-At-Speed Test (FAST) which is used to detect uncertainties in VLSI circuits. One challenge for test response compaction during FAST is the high and varying X-rate at the outputs of the circuit under test. By dividing the circuit outputs into test groups and separately compacting these test groups using stochastic compactors, the modular compaction is able to handle these high and varying X-rates. To deal with uncertainties on logic interconnects, a method for distinguishing crosstalk and process variation is presented. In current semiconductor technologies, the number of parasitic coupling capacitances between logic interconnects is growing. These coupling capacitances can lead to crosstalk, which causes increased current flow in the logic interconnects, which in turn can lead to increased electromigration. In the presented method, delay maps describing the timing behavior of the circuit outputs at different operating points are used to train artificial neural networks which classify the tested circuits into fault-free and faulty. AU - Sprenger, Alexander ID - 46482 KW - Testantwortkompaktierung KW - Prozessvariation KW - Silicon Lifecycle Management TI - Testinstrumente und Testdatenanalyse zur Verarbeitung von Unsicherheiten in Logikblöcken hochintegrierter Schaltungen ER - TY - CONF AB - We present a miniaturized pulse shaping device that creates an arbitrary dispersion through the interaction of multiple metasurfaces on less than 2 mm3 volume. For this, a metalens and a grating-metasurface between two silver mirrors are fabricated. The grating contains further phase information to achieve the device's pulse shaping functionality. AU - Geromel, René AU - Georgi, Philip AU - Protte, Maximilian AU - Bartley, Tim AU - Huang, Lingling AU - Zentgraf, Thomas ID - 46485 T2 - CLEO: Fundamental Science 2023 TI - Dispersion control with integrated plasmonic metasurfaces ER - TY - JOUR AB - We present the fabrication of strain-free quantum dots in the In0.53Ga0.47As/In0.52Al0.48As-system lattice matched to InP, as future sources for single and entangled photons for long-haul fiber-based quantum communication in the optical C-band. We achieved these quantum dots by local droplet etching via InAl droplets in an In0.52Al0.48As layer and subsequent filling of the holes with In0.53Ga0.47As. Here, we present detailed investigations of the hole morphologies measured by atomic force microscopy. Statistical analysis of a set of nanoholes reveals a high degree of symmetry for nearly half of them when etched at optimized temperatures. Overgrowth with 50–150 nm In0.52Al0.48As increases their diameter and elongates the holes along the [01̄1]-direction. By systematically scanning the parameter space, we were able to fill the holes with In0.53Ga0.47As, and by capping the filled holes and performing photoluminescence measurements, we observe photoluminescence emission in the O-band up into the C-band depending on the filling height of the nanoholes. AU - Deutsch, D. AU - Buchholz, C. AU - Zolatanosha, V. AU - Jöns, K. D. AU - Reuter, D. ID - 44851 IS - 5 JF - AIP Advances KW - General Physics and Astronomy SN - 2158-3226 TI - Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers VL - 13 ER - TY - JOUR AU - Müller, Hendrik AU - Weinberger, Christian AU - Grundmeier, Guido AU - de los Arcos de Pedro, Maria Teresa ID - 46480 JF - Journal of Electron Spectroscopy and Related Phenomena KW - Physical and Theoretical Chemistry KW - Spectroscopy KW - Condensed Matter Physics KW - Atomic and Molecular Physics KW - and Optics KW - Radiation KW - Electronic KW - Optical and Magnetic Materials SN - 0368-2048 TI - UV-enhanced environmental charge compensation in near ambient pressure XPS VL - 264 ER - TY - JOUR AU - Pfeifer, Florian AU - Knorr, Lukas AU - Schlosser, Florian AU - Marten, Thorsten AU - Tröster, Thomas ID - 46486 IS - 3 JF - Journal of Sustainable Development of Energy, Water and Environment Systems KW - Energy Engineering and Power Technology KW - Water Science and Technology KW - Environmental Science (miscellaneous) KW - Renewable Energy KW - Sustainability and the Environment SN - 1848-9257 TI - Ecological and Economic Feasibility of Inductive Heating for Sustainable Press Hardening Processes VL - 11 ER - TY - CONF AU - Elsner, Julia AU - Tenberge, Claudia AU - Fechner, Sabine ED - van Vorst, Helena ID - 45371 T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt TI - Videoanalyse des Modellierprozesses von Grundschüler*innen VL - 43 ER - TY - GEN AU - Kundisch, Dennis ID - 46491 TI - #DIGITALENTS - Digital Talents Programm geht in die zweite Runde VL - 1 ER - TY - JOUR AU - Kempkes, J. P. AU - Kreuzhage, K. AU - Kundisch, Dennis AU - Seutter, Janina AU - Weskamp, Christoph ID - 45656 JF - Kultur Management Network Magazin TI - Digitale Transformation im Theater – Mittels Besucherforschung und Entscheidungsunterstützung zur besseren Angebotsgestaltung VL - 172 ER - TY - CONF AU - Gräßler, Iris AU - Wiechel, Dominik ID - 46502 T2 - 2023 18th Annual System of Systems Engineering Conference (SoSe) TI - Customized impact analyses for technical engineering changes ER - TY - JOUR AB - Purpose The purpose of this study is to investigate the manufacturability of Fe-3Si lattice structures and the resulting mechanical properties. This study could lead to the successful processing of squirrel cage conductors (a lattice structure by design) of an induction motor by additive manufacturing in the future. Design/methodology/approach The compression behaviour of two lattice structures where struts are arranged in a face-centred cubic position and vertical edges (FCCZ), and struts are placed at body-centred cubic (BCC) positions, prepared by laser powder bed fusion (LPBF), is explored. The experimental investigations are supported by finite element method (FEM) simulations. Findings The FCCZ lattice structure presents a peak in the stress-strain curve, whereas the BCC lattice structure manifests a plateau. The vertical struts aligned along the compression direction lead to a significant increase in the load-carrying ability of FCCZ lattice structures compared to BCC lattice structures. This results in a peak in the stress-strain curve. However, the BCC lattice structure presents the bending of struts with diagonal struts carrying the major loads with struts near the faceplate receiving the least load. A high concentration of geometrically necessary dislocations (GNDs) near the grain boundaries along cell formation is observed in the microstructure. Originality/value To the best of the authors’ knowledge, this is the first study on additive manufacturing of Fe-3Si lattice structures. Currently, there are no investigations in the literature on the manufacturability and mechanical properties of Fe-3Si lattice structures. AU - Pramanik, Sudipta AU - Hoyer, Kay-Peter AU - Schaper, Mirko ID - 46503 IS - 6 JF - Rapid Prototyping Journal KW - Industrial and Manufacturing Engineering KW - Mechanical Engineering SN - 1355-2546 TI - Experimental and finite element method investigation on the compression behaviour of FCCZ and BCC lattice structures of additively manufactured Fe-3Si samples VL - 29 ER - TY - JOUR AU - Pramanik, Sudipta AU - Milaege, Dennis AU - Hein, Maxwell AU - Andreiev, Anatolii AU - Schaper, Mirko AU - Hoyer, Kay-Peter ID - 46507 IS - 14 JF - Advanced Engineering Materials KW - Condensed Matter Physics KW - General Materials Science SN - 1438-1656 TI - An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures VL - 25 ER - TY - GEN AU - Andreiev, Anatolii AU - Hoyer, Kay-Peter AU - Hengsbach, Florian AU - Haase, Michael AU - Schaper, Mirko ID - 46504 TI - Powder Bed Fusion of Soft-Magnetic Iron-Silicon-Based Alloys: Advantages and Challenges ER - TY - CONF AB - Purpose: Data integration and applications across knowledge graphs (KGs) rely heavily on the discovery of links between resources within these KGs. Geospatial link discovery algorithms have to deal with millions of point sets containing billions of points. Methodology: To speed up the discovery of geospatial links, we propose COBALT. COBALT combines the content measures with R-tree indexing. The content measures are based on the area, diagonal and distance of the minimum bounding boxes of the polygons which speeds up the process but is not perfectly accurate. We thus propose two polygon splitting approaches for improving the accuracy of COBALT. Findings: Our experiments on real-world datasets show that COBALT is able to speed up the topological relation discovery over geospatial KGs by up to 1.47 × 104 times over state-of-the-art linking algorithms while maintaining an F-Measure between 0.7 and 0.9 depending on the relation. Furthermore, we were able to achieve an F-Measure of up to 0.99 by applying our polygon splitting approaches before applying the content measures. Value: The process of discovering links between geospatial resources can be significantly faster by sacrificing the optimality of the results. This is especially important for real time data-driven applications such as emergency response, location-based services and traffic management. In future work, additional measures, like the location of polygons or the name of the entity represented by the polygon, could be integrated to further improve the accuracy of the results. AU - Becker, Alexander AU - Ahmed, Abdullah Fathi Ahmed AU - Sherif, Mohamed AU - Ngonga Ngomo, Axel-Cyrille ID - 46514 KW - ahmed becker dice ngonga sail sherif T2 - SEMANTiCS TI - COBALT: A Content-Based Similarity Approach for Link Discovery over Geospatial Knowledge Graphs ER - TY - JOUR AU - Ahmed, Abdullah Fathi AU - Sherif, Mohamed Ahmed AU - Ngomo, Axel-Cyrille Ngonga ID - 46517 JF - IEEE Access KW - General Engineering KW - General Materials Science KW - General Computer Science KW - Electrical and Electronic Engineering SN - 2169-3536 TI - NELLIE: Never-Ending Linking for Linked Open Data ER - TY - CHAP AB - Linked knowledge graphs build the backbone of many data-driven applications such as search engines, conversational agents and e-commerce solutions. Declarative link discovery frameworks use complex link specifications to express the conditions under which a link between two resources can be deemed to exist. However, understanding such complex link specifications is a challenging task for non-expert users of link discovery frameworks. In this paper, we address this drawback by devising NMV-LS, a language model-based verbalization approach for translating complex link specifications into natural language. NMV-LS relies on the results of rule-based link specification verbalization to apply continuous training on T5, a large language model based on the Transformerarchitecture. We evaluated NMV-LS on English and German datasets using well-known machine translation metrics such as BLUE, METEOR, ChrF++ and TER. Our results suggest that our approach achieves a verbalization performance close to that of humans and outperforms state of the art approaches. Our source code and datasets are publicly available at https://github.com/dice-group/NMV-LS. AU - Ahmed, Abdullah Fathi Ahmed AU - Firmansyah, Asep Fajar AU - Sherif, Mohamed AU - Moussallem, Diego AU - Ngonga Ngomo, Axel-Cyrille ID - 46516 SN - 0302-9743 T2 - Natural Language Processing and Information Systems TI - Explainable Integration of Knowledge Graphs Using Large Language Models ER - TY - CONF AU - Vogelsang, Christoph AU - Janzen, Thomas AU - Meier, Jana AU - Wotschel, Philipp ID - 46522 TI - „Die Prüfungen werden mich sicherlich nicht zu einer besseren Lehrkraft machen.“ Wie beurteilen Studierende Prüfungen und Feedback im Lehramtsstudium? ER - TY - CONF AU - Wotschel, Philipp AU - Vogelsang, Christoph AU - Janzen, Thomas AU - Meier, Jana ID - 46524 TI - Als Lehrkraft gut beraten? Entwicklung und Erprobung eines handlungsnahen Prüfungsformates zur Erfassung von Beratungskompetenz von Lehramtsstudierenden ER - TY - CONF AB - Purpose: This study addresses the limitations of current short abstracts of DBpedia entities, which often lack a comprehensive overview due to their creating method (i.e., selecting the first two-three sentences from the full DBpedia abstracts). Methodology: We leverage pre-trained language models to generate abstractive summaries of DBpedia abstracts in six languages (English, French, German, Italian, Spanish, and Dutch). We performed several experiments to assess the quality of generated summaries by language models. In particular, we evaluated the generated summaries using human judgments and automated metrics (Self-ROUGE and BERTScore). Additionally, we studied the correlation between human judgments and automated metrics in evaluating the generated summaries under different aspects: informativeness, coherence, conciseness, and fluency. Findings: Pre-trained language models generate summaries more concise and informative than existing short abstracts. Specifically, BART-based models effectively overcome the limitations of DBpedia short abstracts, especially for longer ones. Moreover, we show that BERTScore and ROUGE-1 are reliable metrics for assessing the informativeness and coherence of the generated summaries with respect to the full DBpedia abstracts. We also find a negative correlation between conciseness and human ratings. Furthermore, fluency evaluation remains challenging without human judgment. Value: This study has significant implications for various applications in machine learning and natural language processing that rely on DBpedia resources. By providing succinct and comprehensive summaries, our approach enhances the quality of DBpedia abstracts and contributes to the semantic web community AU - Zahera, Hamada Mohamed Abdelsamee AU - Vitiugin, Fedor AU - Sherif, Mohamed AU - Castillo, Carlos AU - Ngonga Ngomo, Axel-Cyrille ID - 46518 KW - dice enexa kiam ngonga porque sherif zahera T2 - SEMANTiCS TI - Using Pre-trained Language Models for Abstractive DBpedia Summarization: A Comparative Study ER - TY - DATA AB - Graffiti is an urban phenomenon that is increasingly attracting the interest of the sciences. To the best of our knowledge, no suitable data corpora are available for systematic research until now. The Information System Graffiti in Germany project (Ingrid) closes this gap by dealing with graffiti image collections that have been made available to the project for public use. Within Ingrid, the graffiti images are collected, digitized and annotated. With this work, we aim to support the rapid access to a comprehensive data source on Ingrid targeted especially by researchers. In particular, we present IngridKG, an RDF knowledge graph of annotated graffiti, abides by the Linked Data and FAIR principles. We weekly update IngridKG by augmenting the new annotated graffiti to our knowledge graph. Our generation pipeline applies RDF data conversion, link discovery and data fusion approaches to the original data. The current version of IngridKG contains 460,640,154 triples and is linked to 3 other knowledge graphs by over 200,000 links. In our use case studies, we demonstrate the usefulness of our knowledge graph for different applications. AU - Sherif, Mohamed AU - Morim da Silva, Ana Alexandra AU - Pestryakova, Svetlana AU - Ahmed, Abdullah Fathi Ahmed AU - Niemann, Sven AU - Ngonga Ngomo, Axel-Cyrille ID - 45558 TI - IngridKG: A FAIR Knowledge Graph of Graffiti ER - TY - JOUR AB - Multiprotein adsorption from complex body fluids represents a highly important and complicated phenomenon in medicine. In this work, multiprotein adsorption from diluted human serum at gold and oxidized iron surfaces is investigated at different serum concentrations and pH values. Adsorption-induced changes in surface topography and the total amount of adsorbed proteins are quantified by atomic force microscopy (AFM) and polarization-modulation infrared reflection absorption spectroscopy (PM-IRRAS), respectively. For both surfaces, stronger protein adsorption is observed at pH 6 compared to pH 7 and pH 8. PM-IRRAS furthermore provides some qualitative insights into the pH-dependent alterations in the composition of the adsorbed multiprotein films. Changes in the amide II/amide I band area ratio and in particular side-chain IR absorption suggest that the increased adsorption at pH 6 is accompanied by a change in protein film composition. Presumably, this is mostly driven by the adsorption of human serum albumin, which at pH 6 adsorbs more readily and thereby replaces other proteins with lower surface affinities in the resulting multiprotein film. AU - Huang, Jingyuan AU - Qiu, Yunshu AU - Lücke, Felix AU - Su, Jiangling AU - Grundmeier, Guido AU - Keller, Adrian ID - 46542 IS - 16 JF - Molecules KW - Chemistry (miscellaneous) KW - Analytical Chemistry KW - Organic Chemistry KW - Physical and Theoretical Chemistry KW - Molecular Medicine KW - Drug Discovery KW - Pharmaceutical Science SN - 1420-3049 TI - Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy VL - 28 ER - TY - JOUR AB - The influence of nanoscale surface topography on protein adsorption is highly important for numerous applications in medicine and technology. Herein, ferritin adsorption at flat and nanofaceted, single-crystalline Al2O3 surfaces is investigated using atomic force microscopy and X-ray photoelectron spectroscopy. The nanofaceted surfaces are generated by the thermal annealing of Al2O3 wafers at temperatures above 1000 °C, which leads to the formation of faceted saw-tooth-like surface topographies with periodicities of about 160 nm and amplitudes of about 15 nm. Ferritin adsorption at these nanofaceted surfaces is notably suppressed compared to the flat surface at a concentration of 10 mg/mL, which is attributed to lower adsorption affinities of the newly formed facets. Consequently, adsorption is restricted mostly to the pattern grooves, where the proteins can maximize their contact area with the surface. However, this effect depends on the protein concentration, with an inverse trend being observed at 30 mg/mL. Furthermore, different ferritin adsorption behavior is observed at topographically similar nanofacet patterns fabricated at different annealing temperatures and attributed to different step and kink densities. These results demonstrate that while protein adsorption at solid surfaces can be notably affected by nanofacet patterns, fine-tuning protein adsorption in this way requires the precise control of facet properties. AU - Pothineni, Bhanu K. AU - Kollmann, Sabrina AU - Li, Xinyang AU - Grundmeier, Guido AU - Erb, Denise J. AU - Keller, Adrian ID - 46543 IS - 16 JF - International Journal of Molecular Sciences KW - Inorganic Chemistry KW - Organic Chemistry KW - Physical and Theoretical Chemistry KW - Computer Science Applications KW - Spectroscopy KW - Molecular Biology KW - General Medicine KW - Catalysis SN - 1422-0067 TI - Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces VL - 24 ER - TY - CONF AU - Kouagou, N’Dah Jean AU - Heindorf, Stefan AU - Demir, Caglar AU - Ngomo, Axel-Cyrille Ngonga ID - 46459 T2 - NeSy TI - Neural Class Expression Synthesis (Extended Abstract) VL - 3432 ER - TY - CHAP AB - Indonesian is classified as underrepresented in the Natural Language Processing (NLP) field, despite being the tenth most spoken language in the world with 198 million speakers. The paucity of datasets is recognized as the main reason for the slow advancements in NLP research for underrepresented languages. Significant attempts were made in 2020 to address this drawback for Indonesian. The Indonesian Natural Language Understanding (IndoNLU) benchmark was introduced alongside IndoBERT pre-trained language model. The second benchmark, Indonesian Language Evaluation Montage (IndoLEM), was presented in the same year. These benchmarks support several tasks, including Named Entity Recognition (NER). However, all NER datasets are in the public domain and do not contain domain-specific datasets. To alleviate this drawback, we introduce IndQNER, a manually annotated NER benchmark dataset in the religious domain that adheres to a meticulously designed annotation guideline. Since Indonesia has the world’s largest Muslim population, we build the dataset from the Indonesian translation of the Quran. The dataset includes 2475 named entities representing 18 different classes. To assess the annotation quality of IndQNER, we perform experiments with BiLSTM and CRF-based NER, as well as IndoBERT fine-tuning. The results reveal that the first model outperforms the second model achieving 0.98 F1 points. This outcome indicates that IndQNER may be an acceptable evaluation metric for Indonesian NER tasks in the aforementioned domain, widening the research’s domain range. AU - Gusmita, Ria Hari AU - Firmansyah, Asep Fajar AU - Moussallem, Diego AU - Ngonga Ngomo, Axel-Cyrille ID - 46572 SN - 0302-9743 T2 - Natural Language Processing and Information Systems TI - IndQNER: Named Entity Recognition Benchmark Dataset from the Indonesian Translation of the Quran ER - TY - JOUR AB - AbstractExternal visualization (i.e., physically embodied visualization) is central to the teaching and learning of mathematics. As external visualization is an important part of mathematics at all levels of education, it is diverse, and research on external visualization has become a wide and complex field. The aim of this scoping review is to characterize external visualizations in recent mathematics education research in order to develop a common ground and guide future research. A qualitative content analysis of the full texts of 130 studies published between 2018 and 2022 applied a deductive-inductive coding procedure to assess four dimensions: visualization product or process, type of visualization, media, and purpose. The analysis revealed different types of external visualizations including visualizations with physical resemblance ranging from pictorial to abstract visualizations as well as three types of visualizations with structural resemblance: length, area, and relational visualizations. Future research should include measures of visualization products or processes to help explain the demands and affordances that different types of visualizations present to learners and teachers. AU - Schoenherr, Johanna AU - Schukajlow, Stanislaw ID - 46569 JF - ZDM – Mathematics Education KW - General Mathematics KW - Education SN - 1863-9690 TI - Characterizing external visualization in mathematics education research: a scoping review ER - TY - CHAP AU - Vochatzer, Stefanie ED - Bentz , Julia ID - 46560 T2 - Creative Approaches to Climate and Peace Education. An Educationr’s Guide to Using Storytelling and Art TI - My first contact with the Foodsharing Initiative ER - TY - GEN AB - We study the effect of education on health (hospital stays, number of diagnosed conditions, self-rated poor health, and obesity) over the life-cycle in Germany, using compulsory schooling reforms as a source of exogenous variation. Our results suggest a positive correlation of health and education which increases over the life-cycle. We do not, however, find any positive local average treatment effects of an additional year of schooling on health or health care utilization for individuals up to age 79. An exception is obesity, where positive effects of schooling start to be visible around age 60 and become very large in age group 75-79. The results in age group 75-79 need to be interpreted with caution, however, due to small sample size and possible problems of attrition. AU - Schmitz, Hendrik AU - Tawiah, Beatrice Baaba ID - 46534 KW - Education KW - health KW - life-cycle effects KW - compulsory schooling TI - Life-cycle health effects of compulsory schooling VL - 1006 ER - TY - CONF AU - Baci, Alkid AU - Heindorf, Stefan ID - 46575 T2 - CIKM TI - Accelerating Concept Learning via Sampling ER - TY - GEN AU - Freise, Diana AU - Schiele, Valentin AU - Schmitz, Hendrik ID - 46521 KW - General Earth and Planetary Sciences KW - General Environmental Science SN - 1556-5068 TI - Housing Situations and Local COVID-19 Infection Dynamics – A Case Study With Small-Area Data ER - TY - GEN AB - The Koopman operator has become an essential tool for data-driven analysis, prediction and control of complex systems, the main reason being the enormous potential of identifying linear function space representations of nonlinear dynamics from measurements. Until now, the situation where for large-scale systems, we (i) only have access to partial observations (i.e., measurements, as is very common for experimental data) or (ii) deliberately perform coarse graining (for efficiency reasons) has not been treated to its full extent. In this paper, we address the pitfall associated with this situation, that the classical EDMD algorithm does not automatically provide a Koopman operator approximation for the underlying system if we do not carefully select the number of observables. Moreover, we show that symmetries in the system dynamics can be carried over to the Koopman operator, which allows us to massively increase the model efficiency. We also briefly draw a connection to domain decomposition techniques for partial differential equations and present numerical evidence using the Kuramoto--Sivashinsky equation. AU - Peitz, Sebastian AU - Harder, Hans AU - Nüske, Feliks AU - Philipp, Friedrich AU - Schaller, Manuel AU - Worthmann, Karl ID - 46579 T2 - arXiv:2307.15325 TI - Partial observations, coarse graining and equivariance in Koopman operator theory for large-scale dynamical systems ER - TY - GEN AB - We study the effect of education on vaccination against COVID-19 and influenza in Germany and Europe. Our identification strategy makes use of changes in compulsory schooling laws and allows to estimate local average treatment effects for individuals between 59 and 91 years of age. We find no significant effect of an additional year of schooling on vaccination status in Germany. Pooling data from Europe, we conclude that schooling increases the likelihood to vaccinate against COVID by an economically negligible effect of one percentage point (zero for influenza). However, we find indications that additional schooling increases fear of side effects from COVID vaccination. AU - Monsees, Daniel AU - Schmitz, Hendrik ID - 46536 KW - COVID KW - influenza KW - vaccination KW - education KW - compulsory schooling TI - The effect of compulsory schooling on vaccination against COVID and Influenza VL - 1011 ER - TY - CONF AB - One of the main challenges for next generation automotive radars is the improvement of angular resolution to a sub-degree level. In this context, wide aperture automotive radars of 1m length or more and resolution close to 0.1° in azimuth and 0.5° in elevation could be beneficial. To enable coherent processing of arrays with such large aperture, prior (i.e offline) and online calibration are necessary: channel imbalances (gains and phases) and three dimensional coordinates of transmit and receive elements need to be determined. We propose a calibration strategy based on alternating steps between the two subtasks of i) channel imbalance estimation with ‘known’ array positions, by applying a singular value decomposition to the resulting tensor calculus problem; and ii) antenna position estimation with ’known’ channel imbalances, by numerically maximizing the Bayesian posterior probability; in both cases operating on range/Doppler snapshots of disjoint targets (with potentially unknown locations). Simulation studies based on the parameters of a MIMO 8x6 linear sparse array show promising results as long as the initial position errors do not exceed half a wavelength (2mm), beyond which we observe strong effects of ambiguity. Experimental results with real measurements show that after calibration in laboratory conditions, our MIMO 8x6 demonstrator with 50cm aperture is able to resolve two targets at the same range with angular separation at least as close as 0.4°. AU - Greiff, Christian AU - Mateos-Núñez, David AU - Simoni, Renato AU - González-Huici, Maria AU - Kruse, Stephan AU - Scheytt, J. Christoph AU - Kolk, Karl AU - Höller, Christian AU - Kurz, Heiko Gustav AU - Meinecke, Marc-Michael AU - Gisder, Thomas ID - 46426 T2 - 2023 24th International Radar Symposium (IRS) TI - Calibration of Large Coherent MIMO Radar Arrays: Channel Imbalances and 3D Antenna Positions ER - TY - GEN AU - Ostermann, Moritz AU - Behm, Jonathan AU - Marten, Thorsten AU - Tröster, Thomas ID - 42459 T2 - WerkstoffPlus Auto 13. Fachtagung für neue Fahrzeug- und Werkstoffkonzepte TI - NeMo.bil - Dekarbonisierung des Verkehrs mithilfe von Leichtbau-Fahrzeugschwärmen ER - TY - JOUR AU - Kaur, Mannat AU - Ramulu, Harshini Sri AU - Acar, Yasemin AU - Fiebig, Tobias ID - 45984 IS - CSCW1 JF - Proc. ACM Hum. Comput. Interact. TI - "Oh yes! over-preparing for meetings is my jam :)": The Gendered Experiences of System Administrators VL - 7 ER - TY - JOUR AU - Bouma-Sims, Elijah AU - Acar, Yasemin ID - 45983 IS - CSCW1 JF - Proc. ACM Hum. Comput. Interact. TI - Beyond the Boolean: How Programmers Ask About, Use, and Discuss Gender VL - 7 ER - TY - JOUR AU - Vöing, Nerea ID - 46622 JF - Lehren im Leben - Blog der Stiftung Innovation in der Hochschullehre TI - 16 Fragen, 16 Antworten: In unserer Rubrik „Lehren im Leben” stellen wir Menschen vor, die Hochschullehre gestalten. Folge 6: Dr. Nerea Vöing VL - 6 ER - TY - GEN AB - We discuss in which cases the Dunkl convolution of distributions, possibly both with non-compact support, can be defined and study its analytic properties. We prove results on the (singular-)support of Dunkl convolutions. Based on this, we are able to prove a theorem on elliptic regularity for a certain class of Dunkl operators, called elliptic Dunkl operators. Finally, for the root systems of type A we consider the Dunkl-type Riesz distributions, prove that their Dunkl convolution exists and compute their convolution. AU - Brennecken, Dominik ID - 46614 T2 - arXiv:2308.07710 TI - Dunkl convolution and elliptic regularity for Dunkl operators ER - TY - JOUR AU - Vöing, Nerea ID - 46623 JF - Trafohaus//Lehre (Podcast der HD Sachsen) TI - Ein Blick auf Lehre und Lernen in Hochschulen durch die Brille der Hochschuldidaktik" ER - TY - GEN AU - Vöing, Nerea AU - Arnold, Maik AU - Reisas, Sabine ID - 46624 TI - Lehrentwicklung durch Scholarship of Teaching and Learning – mit SoTL Hochschullehre beforschen, weiterentwickeln und teilen ER - TY - JOUR AU - Karakaya, Yasin AU - Somnitz, H. AU - Hermsen, A. AU - Gonchikzhapov, Munko AU - Kasper, Tina ID - 45602 JF - Applications in Energy and Combustion Science KW - Metastable particles KW - Nanomaterials KW - Quartz-crystal-microbalance KW - Molecular-beam mass spectrometry KW - Tetramethylsilane KW - Reaction kinetics SN - 2666-352X TI - Revisiting the initial reaction rates for TMS combustion and a new evidence for metastable silica nanoparticles in the gas-phase synthesis VL - 14 ER - TY - CONF AB - New technologies and materials carry significant potential for sustainable production and use of products. As an example, Additive Manufacturing technologies and materials promise lightweight design and energy efficient use of parts. Exhausting the full potential requires: a) consideration of uncertainties with respect to future capabilities, and b) upgradeable design guidelines to cover advancements consistently. The proposed approach merges concepts of Design-for-X with foresight algorithms of Scenario-Technique to derive actionable knowledge. It is validated by an application in the field of Additive Manufacturing, namely Metal Fused Deposition Modelling. Engineers benefit from the intuitive access to heterogeneous types of sustainability related information. AU - Gräßler, Iris AU - Mozgova, Iryna AU - Pottebaum, Jens AU - Ott, Manuel AU - Jung, Philipp AU - Hesse, Philipp ED - Teti, Roberto ID - 46451 KW - Design-for-X KW - Scenario-Technique KW - sustainability KW - uncertainty KW - Life-Cycle Engineering KW - Additive Manufacturing KW - Circular Economy T2 - Procedia CIRP ICME TI - Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique ER - TY - JOUR AB - A reliable, but cost-effective generation of single-photon states is key for practical quantum communication systems. For real-world deployment, waveguide sources offer optimum compatibility with fiber networks and can be embedded in hybrid integrated modules. Here, we present what we believe to be the first chip-size fully integrated fiber-coupled heralded single photon source (HSPS) module based on a hybrid integration of a nonlinear lithium niobate waveguide into a polymer board. Photon pairs at 810 nm (signal) and 1550 nm (idler) are generated via parametric down-conversion pumped at 532 nm in the LiNbO3 waveguide. The pairs are split in the polymer board and routed to separate output ports. The module has a size of (2 × 1) cm^2 and is fully fiber-coupled with one pump input fiber and two output fibers. We measure a heralded second-order correlation function of g_h(2)=0.05 with a heralding efficiency of η_h=3.5% at low pump powers AU - Kießler, Christian AU - Conradi, Hauke AU - Kleinert, Moritz AU - Quiring, Viktor AU - Herrmann, Harald AU - Silberhorn, Christine ID - 46644 IS - 14 JF - Optics Express KW - Atomic and Molecular Physics KW - and Optics SN - 1094-4087 TI - Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology VL - 31 ER - TY - CHAP AB - SoTL ist eine forschungsbasierte Haltung, die die Hochschullehre verbessern und innovieren will. Das deutschsprachige SoTL-Netzwerk hat fünf Thesen formuliert, die SoTL als Grundhaltung und Motor für Lehrentwicklung betonen. Der Beitrag diskutiert diese Thesen und stellt Aktivitäten des Netzwerks vor, die SoTL an Hochschulen und Universitäten fördern und vernetzen wollen. Dabei wird auch die Rolle der »Teacher-Researcher« hervorgehoben. AU - Arnold, Maik AU - Vöing, Nerea AU - Reisas, Sabine ID - 46647 SN - 2749-7623 T2 - Hochschulbildung: Lehre und Forschung TI - Scholarship of Teaching and Learning (SoTL) als Motor für eine inter- und transdisziplinäre Hochschuldidaktik ER - TY - CONF AU - Weller, Julian AU - Roesmann, Daniel AU - Eggert, Sönke AU - von Enzberg, Sebastian AU - Gräßler, Iris AU - Dumitrescu, Roman ID - 46493 SN - 2212-8271 T2 - Procedia CIRP TI - Identification and prediction of standard times in machining for precision steel tubes through the usage of data analytics VL - 119 ER - TY - CONF AU - Althaus, Maike AU - Grieger, Nicole AU - Vorbohle, Christian AU - Müller, Michelle AU - Kundisch, Dennis ID - 46646 TI - Business Models for Cultural Event Platforms - A Taxonomy Approach ER - TY - GEN AU - Mapura Ramirez, Luz Alejandra AU - Kenig, Eugeny Y. ID - 46591 TI - Zur Berechnug von flüssigkeitsseitigen Stoffübergagnskoeffizienten für Strukturpackungen ER - TY - JOUR AB - The Koopman operator has become an essential tool for data-driven approximation of dynamical (control) systems in recent years, e.g., via extended dynamic mode decomposition. Despite its popularity, convergence results and, in particular, error bounds are still quite scarce. In this paper, we derive probabilistic bounds for the approximation error and the prediction error depending on the number of training data points; for both ordinary and stochastic differential equations. Moreover, we extend our analysis to nonlinear control-affine systems using either ergodic trajectories or i.i.d. samples. Here, we exploit the linearity of the Koopman generator to obtain a bilinear system and, thus, circumvent the curse of dimensionality since we do not autonomize the system by augmenting the state by the control inputs. To the best of our knowledge, this is the first finite-data error analysis in the stochastic and/or control setting. Finally, we demonstrate the effectiveness of the proposed approach by comparing it with state-of-the-art techniques showing its superiority whenever state and control are coupled. AU - Nüske, Feliks AU - Peitz, Sebastian AU - Philipp, Friedrich AU - Schaller, Manuel AU - Worthmann, Karl ID - 23428 JF - Journal of Nonlinear Science TI - Finite-data error bounds for Koopman-based prediction and control VL - 33 ER - TY - GEN AB - Different conflicting optimization criteria arise naturally in various Deep Learning scenarios. These can address different main tasks (i.e., in the setting of Multi-Task Learning), but also main and secondary tasks such as loss minimization versus sparsity. The usual approach is a simple weighting of the criteria, which formally only works in the convex setting. In this paper, we present a Multi-Objective Optimization algorithm using a modified Weighted Chebyshev scalarization for training Deep Neural Networks (DNNs) with respect to several tasks. By employing this scalarization technique, the algorithm can identify all optimal solutions of the original problem while reducing its complexity to a sequence of single-objective problems. The simplified problems are then solved using an Augmented Lagrangian method, enabling the use of popular optimization techniques such as Adam and Stochastic Gradient Descent, while efficaciously handling constraints. Our work aims to address the (economical and also ecological) sustainability issue of DNN models, with a particular focus on Deep Multi-Task models, which are typically designed with a very large number of weights to perform equally well on multiple tasks. Through experiments conducted on two Machine Learning datasets, we demonstrate the possibility of adaptively sparsifying the model during training without significantly impacting its performance, if we are willing to apply task-specific adaptations to the network weights. Code is available at https://github.com/salomonhotegni/MDMTN. AU - Hotegni, Sedjro Salomon AU - Peitz, Sebastian AU - Berkemeier, Manuel Bastian ID - 46649 T2 - arXiv:2308.12243 TI - Multi-Objective Optimization for Sparse Deep Neural Network Training ER - TY - JOUR AU - Gonchikzhapov, Munko AU - Kasper, Tina ID - 46637 JF - Applications in Energy and Combustion Science KW - Nanoparticle synthesis KW - Flame spray pyrolysis KW - SpraySyn burner KW - Flame structure KW - Species distribution KW - Temperature distribution SN - 2666-352X TI - Thermal and chemical structure of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames VL - 15 ER - TY - JOUR AB - Many problems in science and engineering require an efficient numerical approximation of integrals or solutions to differential equations. For systems with rapidly changing dynamics, an equidistant discretization is often inadvisable as it results in prohibitively large errors or computational effort. To this end, adaptive schemes, such as solvers based on Runge–Kutta pairs, have been developed which adapt the step size based on local error estimations at each step. While the classical schemes apply very generally and are highly efficient on regular systems, they can behave suboptimally when an inefficient step rejection mechanism is triggered by structurally complex systems such as chaotic systems. To overcome these issues, we propose a method to tailor numerical schemes to the problem class at hand. This is achieved by combining simple, classical quadrature rules or ODE solvers with data-driven time-stepping controllers. Compared with learning solution operators to ODEs directly, it generalizes better to unseen initial data as our approach employs classical numerical schemes as base methods. At the same time it can make use of identified structures of a problem class and, therefore, outperforms state-of-the-art adaptive schemes. Several examples demonstrate superior efficiency. Source code is available at https://github.com/lueckem/quadrature-ML. AU - Dellnitz, Michael AU - Hüllermeier, Eyke AU - Lücke, Marvin AU - Ober-Blöbaum, Sina AU - Offen, Christian AU - Peitz, Sebastian AU - Pfannschmidt, Karlson ID - 21600 IS - 2 JF - SIAM Journal on Scientific Computing TI - Efficient time stepping for numerical integration using reinforcement learning VL - 45 ER - TY - CHAP AU - Dahms, Frederik AU - Homberg, Werner ID - 46691 SN - 2195-4356 T2 - Lecture Notes in Mechanical Engineering TI - Analysis and Modelling of the Deformation in the Manufacture of Flange-Contours by the Combined Friction-Spinning and Flow-Forming Process ER - TY - CONF AU - Garnefeld, I. AU - Böhm, Eva AU - Hanf, L. AU - Helm, S. ID - 46665 T2 - 2023 AMA Summer Academic Conference, San Francisco, CA TI - Unboxing video effectiveness – Does speech matter? ER - TY - CONF AU - Kessing, K. AU - Garnefeld, I. AU - Böhm, Eva ID - 46666 T2 - EMAC Annual Conference, Odense, Denmark TI - The dark and bright side of online reviews in manufacturer online shops ER - TY - CONF AU - Hanf, L. AU - Garnefeld, I. AU - Böhm, Eva AU - Helm, S. ID - 46667 T2 - EMAC Annual Conference, Odense, Denmark TI - Stimulating engagement with unboxing videos – Does speech matter? ER - TY - CONF AU - Sadeghi-Kohan, Somayeh AU - Hellebrand, Sybille AU - Wunderlich, Hans-Joachim ID - 46739 T2 - 2023 53rd Annual IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN-W) TI - Low Power Streaming of Sensor Data Using Gray Code-Based Approximate Communication ER - TY - CONF AU - Janzen, Thomas AU - Wotschel, Philipp AU - Meier, Jana AU - Vogelsang, Christoph ID - 46740 T2 - EARLI 2023 TI - Assessing pre-service EFL teachers’ feedback performance in role-play-based simulations ER -