@inbook{47421, abstract = {{Class expression learning in description logics has long been regarded as an iterative search problem in an infinite conceptual space. Each iteration of the search process invokes a reasoner and a heuristic function. The reasoner finds the instances of the current expression, and the heuristic function computes the information gain and decides on the next step to be taken. As the size of the background knowledge base grows, search-based approaches for class expression learning become prohibitively slow. Current neural class expression synthesis (NCES) approaches investigate the use of neural networks for class expression learning in the attributive language with complement (ALC). While they show significant improvements over search-based approaches in runtime and quality of the computed solutions, they rely on the availability of pretrained embeddings for the input knowledge base. Moreover, they are not applicable to ontologies in more expressive description logics. In this paper, we propose a novel NCES approach which extends the state of the art to the description logic ALCHIQ(D). Our extension, dubbed NCES2, comes with an improved training data generator and does not require pretrained embeddings for the input knowledge base as both the embedding model and the class expression synthesizer are trained jointly. Empirical results on benchmark datasets suggest that our approach inherits the scalability capability of current NCES instances with the additional advantage that it supports more complex learning problems. NCES2 achieves the highest performance overall when compared to search-based approaches and to its predecessor NCES. We provide our source code, datasets, and pretrained models at https://github.com/dice-group/NCES2.}}, author = {{Kouagou, N'Dah Jean and Heindorf, Stefan and Demir, Caglar and Ngonga Ngomo, Axel-Cyrille}}, booktitle = {{Machine Learning and Knowledge Discovery in Databases: Research Track}}, isbn = {{9783031434204}}, issn = {{0302-9743}}, location = {{Turin}}, publisher = {{Springer Nature Switzerland}}, title = {{{Neural Class Expression Synthesis in ALCHIQ(D)}}}, doi = {{10.1007/978-3-031-43421-1_12}}, year = {{2023}}, } @inproceedings{51338, author = {{Schütte, Jan and Sextro, Walter}}, booktitle = {{20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn}}, location = {{Karlsruhe}}, pages = {{165--180}}, publisher = {{VDI Verlag GmbH}}, title = {{{Einfluss der Radhubkinematik auf den Reifenverschleiß}}}, volume = {{2425}}, year = {{2023}}, } @inbook{54466, author = {{Janus, Richard and Kamcili-Yildiz, Naciye and Rose, Marion}}, booktitle = {{Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert}}, editor = {{Janus, Richard and Kamcili-Yildiz, Naciye and Rose, Marion and Schroeter-Witte, Harald}}, pages = {{13--28}}, publisher = {{Evangelischer Verlagsanstalt}}, title = {{{Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung }}}, volume = {{26}}, year = {{2023}}, } @inbook{54465, author = {{Janus, Richard}}, booktitle = {{Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert}}, editor = {{Janus, Richard and Kamcili-Yildiz, Naciye and Rose, Marion and Schroeter-Witte, Harald}}, pages = {{201--212}}, title = {{{Der Religionsunterricht vor der Judenfrage. Antisemitismus als Kriterium für die Beschreibung der Religionspädagogik im Nationalsozialismus bei Hermann Tögel und Kurt Freitag}}}, volume = {{26}}, year = {{2023}}, } @inbook{54467, author = {{Janus, Richard}}, booktitle = {{Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1}}, editor = {{Schult, Maike}}, pages = {{159--164}}, publisher = {{Evangelischer Verlagsanstalt}}, title = {{{Karfreitag. Matthäus 27,33-54.}}}, year = {{2023}}, } @book{52855, editor = {{Janus, Richard and Schroeter-Wittke, Harald and Kamcili-Yildiz, Naciye and Rose, Marion}}, isbn = {{978-3-374-07442-6}}, pages = {{368}}, publisher = {{EVA}}, title = {{{Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert}}}, year = {{2023}}, } @article{53232, abstract = {{PurposeNew business practices and the globalization of markets force firms to take innovation as the fundamental pillar of their competitive strategy. Research and Development (R&D) plays a vital role in innovation. As technology advances and product life cycles become shorter, firms rely on R&D as a strategy to invigorate innovation. R&D project portfolio selection is a complex and challenging task. Despite the management's efforts to implement the best project portfolio selection practices, many projects continue to fail or miss their target. The problem is that selecting R&D projects requires a deep understanding of strategic vision and technical capabilities. However, many decision-makers lack technological insight or strategic vision. This article aims to provide a method to capitalize on the expertise of R&D professionals to assist managers in making informed and effective decisions. It also provides a framework for aligning the portfolio of R&D projects with the organizational vision and mission.Design/methodology/approachThis article proposes a new strategic approach for R&D project portfolio selection using efficiency-uncertainty maps.FindingsThe proposed strategy plane helps decision-makers align R&D project portfolios with their strategies to combine a strategic view and numerical analysis in this research. The proposed strategy plane consists of four areas: Exploitation Zone, Challenge Zone, Desperation Zone and Discretion Zone. Mapping the project into this strategic plane would help decision-makers align their project portfolio according to the corporate perspectives.Originality/valueThe new approach combines the efficiency and uncertainty dimensions in portfolio selection into an integrated framework that: (i) provides a complete representation of the stochastic decision-making processes, (ii) models the endogenous uncertainty inherent in the project selection process and (iii) proposes a computationally practical and visually unique solution procedure for classifying desirable and undesirable R&D projects.}}, author = {{Namazi, Mehdi and Tavana, Madjid and Mohammadi, Emran and Bonyadi Naeini, Ali}}, issn = {{1463-5771}}, journal = {{Benchmarking: An International Journal}}, keywords = {{Business and International Management, Strategy and Management}}, number = {{10}}, pages = {{4193--4220}}, publisher = {{Emerald}}, title = {{{A new strategic approach for R&D project portfolio selection using efficiency-uncertainty maps}}}, doi = {{10.1108/bij-02-2022-0129}}, volume = {{30}}, year = {{2023}}, } @article{50603, abstract = {{Mathematical models and computer simulations play a crucial role in the context of the COVID-19 crisis for knowledge about the possible course of the pandemic and for appropriate policy decisions. The paper presents results from an ethnographic study of a government-funded R & D project dealing with agent-based modeling and simulation (ABMS) in the context of pandemic management. Based on the assumption that the use of computer simulations in pandemic management is not only a means to an end for political or epidemiological goals but also plays a significant role in determining which goals and strategies appear politically legitimate, the paper reconstructs how insights into the pandemic are generated in ABMS and specifically in the researched project and made accessible for decision-making.}}, author = {{Hälterlein, Jens}}, issn = {{2567-8833}}, journal = {{TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis}}, keywords = {{General Medicine}}, number = {{1}}, pages = {{30--35}}, publisher = {{Oekom Publishers GmbH}}, title = {{{Agentenbasierte Modellierung und Simulation im Pandemiemanagement}}}, doi = {{10.14512/tatup.32.1.30}}, volume = {{32}}, year = {{2023}}, } @misc{54398, abstract = {{Dataset of the publication “Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations”, A. Trautmann, M. Stein, F. Schäfer, D. Anders, C. Ngo, J. T. Steiner, M. Reichelt, S. Chatterjee, and T. Meier, Proc. SPIE 12419, Ultrafast Phenomena and Nanophotonics XXVII, 124190A (2023) ( https://doi.org/10.1117/12.2650169 ). The zip file includes the data on which the plots are based.}}, author = {{Trautmann, Alexander and Stein, Markus and Schäfer, Felix and Anders, Daniel and Ngo, Cong and Steiner, Johannes Tilmann and Reichelt, Matthias and Chatterjee, Sangam and Meier, Torsten}}, publisher = {{LibreCat University}}, title = {{{Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations}}}, doi = {{10.5281/ZENODO.7757178}}, year = {{2023}}, } @book{55836, abstract = {{PDF versions of the Music Encoding Initiative Guidelines 5.0 [2023]: This version represents the 5.0 release of the Music Encoding Initiative Guidelines.}}, editor = {{Roland, Perry D. and Kepper, Johannes}}, publisher = {{Zenodo}}, title = {{{MEI: The Music Encoding Initiative Guidelines (PDF)}}}, doi = {{10.5281/ZENODO.10040258}}, year = {{2023}}, } @book{55960, author = {{Rossel, Moritz Sebastian and Meschut, Gerson and Bielak, Christian Roman and Otroshi, Mortaza}}, isbn = {{9783867766791}}, pages = {{124}}, publisher = {{ Europäische Forschungsgesellschaft für Blechverarbeitung e.V.}}, title = {{{Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung}}}, volume = {{610}}, year = {{2023}}, } @inbook{41119, author = {{Schmitz, Sabine}}, booktitle = {{Letteratura come ponte? Littérature comme pont? Literatur als Brücke? Zur Frage von Migration und Literatur}}, editor = {{Kuhn, Barbara and Liebermann, Marita}}, pages = {{28}}, publisher = {{Viella Libreria Editrice}}, title = {{{Brückenbau oder Steg der Erinnerung? Narrationen zur italienischen Arbeitsmigration des 20. Jahrhunderts im aktuellen belgischen Comic}}}, year = {{2023}}, } @article{36834, abstract = {{AbstractIncreasing average temperatures and heat waves are having devasting impacts on human health and well-being but studies of heat impacts and how people adapt are rare and often confined to specific locations. In this study, we explore how analysis of conversations on social media can be used to understand how people feel about heat waves and how they respond. We collected global Twitter data over four months (from January to April 2022) using predefined hashtags about heat waves. Topic modelling identified five topics. The largest (one-third of all tweets) was related to sports events. The remaining two-thirds could be allocated to four topics connected to communication about climate-related heat or heat waves. Two of these were on the impacts of heat and heat waves (health impacts 20%; social impacts 16%), one was on extreme weather and climate change attribution (17%) and the last one was on perceptions and warning (13%). The number of tweets in each week corresponded well with major heat wave occurrences in Argentina, Australia, the USA and South Asia (India and Pakistan), indicating that people posting tweets were aware of the threat from heat and its impacts on the society. Among the words frequently used within the topic ‘Social impacts’ were ‘air-conditioning’ and ‘electricity’, suggesting links between coping strategies and financial pressure. Apart from analysing the content of tweets, new insights were also obtained from analysing how people engaged with Twitter tweets about heat or heat waves. We found that tweets posted early, and which were then shared by other influential Twitter users, were among the most popular. Finally, we found that the most popular tweets belonged to individual scientists or respected news outlets, with no evidence that misinformation about climate change-related heat is widespread. }}, author = {{Zander, Kerstin K. and Rieskamp, Jonas and Mirbabaie, Milad and Alazab, Mamoun and Nguyen, Duy}}, issn = {{0921-030X}}, journal = {{Natural Hazards}}, keywords = {{Earth and Planetary Sciences (miscellaneous), Atmospheric Science, Water Science and Technology}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Responses to heat waves: what can Twitter data tell us?}}}, doi = {{10.1007/s11069-023-05824-2}}, year = {{2023}}, } @unpublished{42049, abstract = {{Long-range quantum communication requires the development of in-out light-matter interfaces to achieve a quantum advantage in entanglement distribution. Ideally, these quantum interconnections should be as fast as possible to achieve high-rate entangled qubits distribution. Here, we demonstrate the coherent quanta exchange between single photons generated on-demand from a GaAs quantum dot and atomic ensemble in a $^{87}$Rb vapor quantum memory. Through an open quantum system analysis, we demonstrate the mapping between the quantized electric field of photons and the coherence of the atomic ensemble. Our results play a pivotal role in understanding quantum light-matter interactions at the short time scales required to build fast hybrid quantum networks.}}, author = {{Cui, Guo-Dong and Schweickert, Lucas and Jöns, Klaus D. and Namazi, Mehdi and Lettner, Thomas and Zeuner, Katharina D. and Montaña, Lara Scavuzzo and Silva, Saimon Filipe Covre da and Reindl, Marcus and Huang, Huiying and Trotta, Rinaldo and Rastelli, Armando and Zwiller, Val and Figueroa, Eden}}, booktitle = {{arXiv:2301.10326}}, title = {{{Coherent Quantum Interconnection between On-Demand Quantum Dot Single Photons and a Resonant Atomic Quantum Memory}}}, year = {{2023}}, } @article{42638, abstract = {{ We propose a new method to estimate and isolate the localization of knowledge spillovers due to the physical presence of a person, using after-application but pre-grant deaths of differently located coinventors of the same patent. The approach estimates the differences in local citations between the deceased and still-living inventors at increasingly distant radii. Patents receive 26 percent fewer citations from within a radius of 20 miles around the deceased, relative to still-living coinventors. Differences attenuate with time and distance, are stronger when still-living coinventors live farther from the deceased, and hold for a subsample of possibly premature deaths. (JEL O31, O33, O34, R32) }}, author = {{Balsmeier, Benjamin and Fleming, Lee and Lück, Sonja}}, issn = {{2640-205X}}, journal = {{American Economic Review: Insights}}, keywords = {{Management, Monitoring, Policy and Law, Geography, Planning and Development}}, number = {{1}}, pages = {{21--33}}, publisher = {{American Economic Association}}, title = {{{Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials}}}, doi = {{10.1257/aeri.20210275}}, volume = {{5}}, year = {{2023}}, } @inproceedings{43189, abstract = {{The nonlinear optical response of quantum well excitons is investigated experimentally using polarization resolved four wave mixing, optical-pump optical-probe, and optical-pump Terahertz-probe spectroscopy. The four-wave mixing data reveal clear signatures of coherent biexcitons which concur with straight-forward polarization selection rules at the Γ point. The type-I samples show the well-established time-domain beating signatures in the transients as well as the corresponding spectral signatures clearly. The latter are also present in type-II samples; however, the smaller exciton and biexciton binding energies in these structures infer longer beating times which, in turn, are accompanied by faster dephasing of the type-II exciton coherences. Furthermore, the THz absorption following spectrally narrow, picosecond excitation at energies in the vicinity of the 1s exciton resonance are discussed. Here, the optical signatures yield the well-established redshifts and blueshifts for the appropriate polarization geometries in type-I quantum well samples also termed “AC Stark Effect”. The THz probe reveals intriguing spectral features which can be ascribed to coherent negative absorption following an excitation into a virtual state for an excitation below the 1s exciton resonance. Furthermore, the scattering and ionization of excitons is discussed for several excitation geometries yielding control rules for elastic and inelastic quasiparticle collisions.}}, author = {{Meier, Torsten and Stein, M. and Schäfer, F. and Anders, D. and Littmann, J. H. and Fey, M. and Trautmann, Alexander and Ngo, C. and Steiner, J. T. and Reichelt, Matthias and Fuchs, C. and Volz, K. and Chatterjee, S.}}, booktitle = {{Ultrafast Phenomena and Nanophotonics XXVII}}, publisher = {{SPIE }}, title = {{{Experimental studies of the excitonic nonlinear response of GaAs-based type-I and type-II quantum well structures interacting with optical and terahertz fields}}}, doi = {{10.1117/12.2650291}}, volume = {{12419}}, year = {{2023}}, } @inproceedings{43190, abstract = {{The nonlinear optical response of quantum well excitons excited by optical fields is analyzed by numerical solutions of the semiconductor Bloch equations. Differential absorption spectra are computed for resonant pumping at the exciton resonance and the dependence of the absorption changes on the polarization directions of the pump and probe pulses is investigated. Coherent biexcitonic many-body correlations are included in our approach up to third-order in the optical fields. Results are presented for spatially-direct type-I and spatiallyindirect type-II quantum well systems. Due to the spatial inhomogeneity, in type-II structures a finite coupling between excitons of opposite spins exists already on the Hartree-Fock level and contributes to the absorption changes for the case of opposite circularly polarized pump and probe pulses.}}, author = {{Meier, Torsten and Trautmann, Alexander and Stein, M. and Schäfer, F. and Anders, D. and Ngo, C. and Steiner, J. T. and Reichelt, Matthias and Chatterjee, S.}}, booktitle = {{Ultrafast Phenomena and Nanophotonics XXVII}}, publisher = {{SPIE}}, title = {{{Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations}}}, doi = {{10.1117/12.2650169}}, volume = {{12419}}, year = {{2023}}, } @article{43034, abstract = {{Abstract The accessibility to rheological parameters for concrete is becoming more and more relevant. This is mainly related to the constantly emerging challenges, such as not only the development of high-strength concretes is progressing very fast but also the simulation of the flow behaviour is of high importance. The main problem, however, is that the rheological characterisation of fresh concrete is not possible via commercial rheometers. The so-called concrete rheometers provide valuable relative values for comparing different concretes, but they cannot measure absolute values. Therefore, we developed an adaptive coaxial concrete rheometer (ACCR) that allows the measurement of fresh concrete with particles up to d max = 5.5 mm {d}_{{\rm{\max }}}=5.5\hspace{.5em}{\rm{mm}} . The comparison of the ACCR with a commercial rheometer showed very good agreement for selected test materials (Newtonian fluid, shear thinning fluid, suspension, and yield stress fluid), so that self-compacting concrete was subsequently measured. Since these measurements showed a very high reproducibility, the rheological properties of the fresh concrete could be determined with high accuracy. The common flow models (Bingham (B), Herschel–Bulkley, modified Bingham (MB) models) were also tested for their applicability, with the Bingham and the modified Bingham model proving to be the best suitable ones.}}, author = {{Josch, Sebastian and Jesinghausen, Steffen and Schmid, Hans-Joachim}}, issn = {{1617-8106}}, journal = {{Applied Rheology}}, keywords = {{Condensed Matter Physics, General Materials Science}}, number = {{1}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{Development of an adaptive coaxial concrete rheometer and rheological characterisation of fresh concrete}}}, doi = {{10.1515/arh-2022-0140}}, volume = {{33}}, year = {{2023}}, } @inproceedings{43044, abstract = {{Abstract. The combination of incremental sheet metal forming and high-speed forming offers new possibilities for flexible forming processes in the production of large sheet metal components of increased complexity with relatively low forming energies. In this paper, the general feasibility and process differences between the pulse-driven high-speed forming technologies of electrohydraulic and electromagnetic forming were investigated. An example component made of EN AW 6016 aluminum sheet metal was thus formed incrementally by both processes and the forming result evaluated by an optical 3D measurement system. For this purpose, a forming strategy for electromagnetic incremental forming (EMIF) was developed, tested and adapted to the electrohydraulic incremental forming process (EHIF). The discharge energy, the tool displacement and the pressure field of the forming zone were determined as relevant parameters for the definition of an adequate tool path strategy. It was found that the EHIF process is less affected by larger distances between the tool and the blank, while this is a critical variable for force application to the component during EMIF. On the other hand, the more uniform pressure distribution of the EMIF process is advantageous for forming large steady component areas. }}, author = {{Holzmüller, Maik and Linnemann, Maik and Homberg, Werner and Psyk, Verena and Kräusel, Verena and Kroos, Janika}}, booktitle = {{Materials Research Proceedings}}, issn = {{2474-395X}}, keywords = {{Incremental Sheet Forming, Aluminium, High-Speed Forming}}, location = {{Nürnberg}}, pages = {{11--18}}, publisher = {{Materials Research Forum LLC}}, title = {{{Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming}}}, doi = {{10.21741/9781644902417-2}}, volume = {{25}}, year = {{2023}}, } @article{45013, author = {{Codescu, M.-A. and Kunze, T. and Weiß, M. and Brehm, Martin and Kornilov, O. and Sebastiani, D. and Nibbering, E. T. J.}}, journal = {{J. Phys. Chem. Lett.}}, pages = {{4775--4785}}, title = {{{Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole}}}, doi = {{10.1021/acs.jpclett.3c00595}}, volume = {{14}}, year = {{2023}}, }