TY - GEN
AB - Knowledge bases are widely used for information management on the web,
enabling high-impact applications such as web search, question answering, and
natural language processing. They also serve as the backbone for automatic
decision systems, e.g. for medical diagnostics and credit scoring. As
stakeholders affected by these decisions would like to understand their
situation and verify fair decisions, a number of explanation approaches have
been proposed using concepts in description logics. However, the learned
concepts can become long and difficult to fathom for non-experts, even when
verbalized. Moreover, long concepts do not immediately provide a clear path of
action to change one's situation. Counterfactuals answering the question "How
must feature values be changed to obtain a different classification?" have been
proposed as short, human-friendly explanations for tabular data. In this paper,
we transfer the notion of counterfactuals to description logics and propose the
first algorithm for generating counterfactual explanations in the description
logic $\mathcal{ELH}$. Counterfactual candidates are generated from concepts
and the candidates with fewest feature changes are selected as counterfactuals.
In case of multiple counterfactuals, we rank them according to the likeliness
of their feature combinations. For evaluation, we conduct a user survey to
investigate which of the generated counterfactual candidates are preferred for
explanation by participants. In a second study, we explore possible use cases
for counterfactual explanations.
AU - Sieger, Leonie Nora
AU - Heindorf, Stefan
AU - Blübaum, Lukas
AU - Ngonga Ngomo, Axel-Cyrille
ID - 37937
T2 - arXiv:2301.05109
TI - Counterfactual Explanations for Concepts in ELH
ER -
TY - GEN
AB - Label noise poses an important challenge in machine learning, especially in
deep learning, in which large models with high expressive power dominate the
field. Models of that kind are prone to memorizing incorrect labels, thereby
harming generalization performance. Many methods have been proposed to address
this problem, including robust loss functions and more complex label correction
approaches. Robust loss functions are appealing due to their simplicity, but
typically lack flexibility, while label correction usually adds substantial
complexity to the training setup. In this paper, we suggest to address the
shortcomings of both methodologies by "ambiguating" the target information,
adding additional, complementary candidate labels in case the learner is not
sufficiently convinced of the observed training label. More precisely, we
leverage the framework of so-called superset learning to construct set-valued
targets based on a confidence threshold, which deliver imprecise yet more
reliable beliefs about the ground-truth, effectively helping the learner to
suppress the memorization effect. In an extensive empirical evaluation, our
method demonstrates favorable learning behavior on synthetic and real-world
noise, confirming the effectiveness in detecting and correcting erroneous
training labels.
AU - Lienen, Julian
AU - Hüllermeier, Eyke
ID - 45244
T2 - arXiv:2305.13764
TI - Mitigating Label Noise through Data Ambiguation
ER -
TY - JOUR
AB - This article presents the potential-dependent adsorption of two proteins, bovine serum albumin (BSA) and lysozyme (LYZ), on Ti6Al4V alloy at pH 7.4 and 37 °C. The adsorption process was studied on an electropolished alloy under cathodic and anodic overpotentials, compared to the open circuit potential (OCP). To analyze the adsorption process, various complementary interface analytical techniques were employed, including PM-IRRAS (polarization-modulation infrared reflection-absorption spectroscopy), AFM (atomic force microscopy), XPS (X-ray photoelectron spectroscopy), and E-QCM (electrochemical quartz crystal microbalance) measurements. The polarization experiments were conducted within a potential range where charging of the electric double layer dominates, and Faradaic currents can be disregarded. The findings highlight the significant influence of the interfacial charge distribution on the adsorption of BSA and LYZ onto the alloy surface. Furthermore, electrochemical analysis of the protein layers formed under applied overpotentials demonstrated improved corrosion protection properties. These studies provide valuable insights into protein adsorption on titanium alloys under physiological conditions, characterized by varying potentials of the passive alloy.
AU - Duderija, Belma
AU - González-Orive, Alejandro
AU - Ebbert, Christoph
AU - Neßlinger, Vanessa
AU - Keller, Adrian
AU - Grundmeier, Guido
ID - 45828
IS - 13
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 - Electrode Potential-Dependent Studies of Protein Adsorption on Ti6Al4V Alloy
VL - 28
ER -
TY - CHAP
AU - Keller, Adrian
AU - Grundmeier, Guido
ID - 45829
SN - 9780124095472
T2 - Reference Module in Chemistry, Molecular Sciences and Chemical Engineering
TI - High-speed AFM studies of macromolecular dynamics at solid/liquid interfaces
ER -
TY - CHAP
AU - Kostan, Anastassija
ID - 45833
SN - 9783828877368
T2 - Bedeutung und Implikationen epistemischer Ungerechtigkeit
TI - Die epistemische Gewalt KI-basierter Gesichtserkennung. Wie ein codierter Blick neue Formen der technologisierten Subalternität erschafft
ER -
TY - THES
AB - Reading between the lines has so far been reserved for humans. The present dissertation addresses this research gap using machine learning methods.
Implicit expressions are not comprehensible by computers and cannot be localized in the text. However, many texts arise on interpersonal topics that, unlike commercial evaluation texts, often imply information only by means of longer phrases. Examples are the kindness and the attentiveness of a doctor, which are only paraphrased (“he didn’t even look me in the eye”). The analysis of such data, especially the identification and localization of implicit statements, is a research gap (1). This work uses so-called Aspect-based Sentiment Analysis as a method for this purpose. It remains open how the aspect categories to be extracted can be discovered and thematically delineated based on the data (2). Furthermore, it is not yet explored how a collection of tools should look like, with which implicit phrases can be identified and thus made explicit
(3). Last, it is an open question how to correlate the identified phrases from the text data with other data, including the investigation of the relationship between quantitative scores (e.g., school grades) and the thematically related text (4). Based on these research gaps, the research question is posed as follows: Using text mining methods, how can implicit rating content be properly interpreted and thus made explicit before it is automatically categorized and quantified?
The uniqueness of this dissertation is based on the automated recognition of implicit linguistic statements alongside explicit statements. These are identified in unstructured text data so that features expressed only in the text can later be compared across data sources, even though they were not included in rating categories such as stars or school grades. German-language physician ratings from websites in three countries serve as the sample domain. The solution approach consists of data creation, a pipeline for text processing and analyses based on this. In the data creation, aspect classes are identified and delineated across platforms and marked in text data. This results in six datasets with over 70,000 annotated sentences and detailed guidelines. The models that were created based on the training data extract and categorize the aspects. In addition, the sentiment polarity and the evaluation weight, i. e., the importance of each phrase, are determined. The models, which are combined in a pipeline, are used in a prototype in the form of a web application. The analyses built on the pipeline quantify the rating contents by linking the obtained information with further data, thus allowing new insights.
As a result, a toolbox is provided to identify quantifiable rating content and categories using text mining for a sample domain. This is used to evaluate the approach, which in principle can also be adapted to any other domain.
AU - Kersting, Joschka
ID - 44323
TI - Identifizierung quantifizierbarer Bewertungsinhalte und -kategorien mittels Text Mining
ER -
TY - JOUR
AB - The aim of the present study is to prove the construct validity of the German versions of the Feeling Scale (FS) and the Felt Arousal Scale (FAS) for a progressive muscle relaxation (PMR) exercise. A total of 228 sport science students conducted the PMR exercise for 45 min and completed the FS, the FAS, and the Self-Assessment Manikin (SAM) in a pre-test–post-test design. A significant decrease in arousal (t(227) = 8.296, p < 0.001) and a significant increase in pleasure (t(227) = 4.748, p < 0.001) were observed. For convergent validity, the correlations between the FS and the subscale SAM-P for the valence dimension (r = 0.67, p < 0.001) and between the FAS and the subscale SAM-A for the arousal dimension (r = 0.31, p < 0.001) were significant. For discriminant validity, the correlations between different constructs (FS and SAM-A, FAS and SAM-P) were not significant, whereas the discriminant analysis between the FS and the FAS revealed a negative significant correlation (r = −0.15, p < 0.001). Together, the pattern of results confirms the use of the German versions of the FS and the FAS to measure the affective response for a PMR exercise.
AU - Thorenz, Kristin
AU - Berwinkel, Andre
AU - Weigelt, Matthias
ID - 45857
IS - 7
JF - Behavioral Sciences
KW - Behavioral Neuroscience
KW - General Psychology
KW - Genetics
KW - Development
KW - Ecology
KW - Evolution
KW - Behavior and Systematics
SN - 2076-328X
TI - A Validation Study for the German Versions of the Feeling Scale and the Felt Arousal Scale for a Progressive Muscle Relaxation Exercise
VL - 13
ER -
TY - JOUR
AU - Thorenz, Kristin
AU - Berwinkel, Andre
AU - Weigelt, Matthias
ID - 45856
IS - 06
JF - Psychology
KW - General Earth and Planetary Sciences
KW - General Environmental Science
SN - 2152-7180
TI - A Validation Study of the German Versions of the Feeling Scale and the Felt Arousal Scale for a Passive Relaxation Technique (Autogenic Training)
VL - 14
ER -
TY - JOUR
AU - Topalović, Elvira
AU - Blachut, Alisa
ID - 45861
JF - Der Deutschunterricht
TI - Grammatische Modelle. Einführung in das Themenheft
VL - 3
ER -
TY - JOUR
AU - Schlosser, Florian
AU - Zysk, Sebastian
AU - Walmsley, Timothy G.
AU - Kong, Lana
AU - Zühlsdorf, Benjamin
AU - Meschede, Henning
ID - 45867
JF - Energy Conversion and Management
KW - Energy Engineering and Power Technology
KW - Fuel Technology
KW - Nuclear Energy and Engineering
KW - Renewable Energy
KW - Sustainability and the Environment
SN - 0196-8904
TI - Break-even of high-temperature heat pump integration for milk spray drying
VL - 291
ER -
TY - JOUR
AU - Wolf, Isabel
AU - Holzapfel, Peter K.R.
AU - Meschede, Henning
AU - Finkbeiner, Matthias
ID - 45865
JF - Applied Energy
KW - Management
KW - Monitoring
KW - Policy and Law
KW - Mechanical Engineering
KW - General Energy
KW - Building and Construction
SN - 0306-2619
TI - On the potential of temporally resolved GHG emission factors for load shifting: A case study on electrified steam generation
VL - 348
ER -
TY - JOUR
AB - Perfect vector vortex beams (PVVBs) have attracted considerable interest due to their peculiar optical features. PVVBs are typically generated through the superposition of perfect vortex beams, which suffer from the limited number of topological charges (TCs). Furthermore, dynamic control of PVVBs is desirable and has not been reported. We propose and experimentally demonstrate hybrid grafted perfect vector vortex beams (GPVVBs) and their dynamic control. Hybrid GPVVBs are generated through the superposition of grafted perfect vortex beams with a multifunctional metasurface. The generated hybrid GPVVBs possess spatially variant rates of polarization change due to the involvement of more TCs. Each hybrid GPVVB includes different GPVVBs in the same beam, adding more design flexibility. Moreover, these beams are dynamically controlled with a rotating half waveplate. The generated dynamic GPVVBs may find applications in the fields where dynamic control is in high demand, including optical encryption, dense data communication, and multiple particle manipulation.
AU - Ahmed, Hammad
AU - Ansari, Muhammad Afnan
AU - Li, Yan
AU - Zentgraf, Thomas
AU - Mehmood, Muhammad Qasim
AU - Chen, Xianzhong
ID - 45868
IS - 1
JF - Nature Communications
KW - General Physics and Astronomy
KW - General Biochemistry
KW - Genetics and Molecular Biology
KW - General Chemistry
KW - Multidisciplinary
SN - 2041-1723
TI - Dynamic control of hybrid grafted perfect vector vortex beams
VL - 14
ER -
TY - JOUR
AB - Interference between single photons is key for many quantum optics experiments and applications in quantum technologies, such as quantum communication or computation. It is advantageous to operate the systems at telecommunication wavelengths and to integrate the setups for these applications in order to improve stability, compactness and scalability. A new promising material platform for integrated quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel (HOM) interference between telecom photons from an engineered parametric down-conversion source in an LNOI directional coupler. The coupler has been designed and fabricated in house and provides close to perfect balanced beam splitting. We obtain a raw HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and in good agreement with off-chip measurements. This lays the foundation for more sophisticated quantum experiments in LNOI.
AU - Babel, Silia
AU - Bollmers, Laura
AU - Massaro, Marcello
AU - Luo, Kai Hong
AU - Stefszky, Michael
AU - Pegoraro, Federico
AU - Held, Philip
AU - Herrmann, Harald
AU - Eigner, Christof
AU - Brecht, Benjamin
AU - Padberg, Laura
AU - Silberhorn, Christine
ID - 45850
IS - 14
JF - Optics Express
KW - Atomic and Molecular Physics
KW - and Optics
SN - 1094-4087
TI - Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler
VL - 31
ER -
TY - JOUR
AB - Die mit dem Forschenden Lernen verbundenen Verständnisse werden in der Literatur als vielfältig bewertet und die damit einhergehenden Auswirkungen als problematisch für Erforschung, hochschuldidaktische Umsetzung sowie Wirkungsannahmen gesehen (Huber & Reinmann, 2019). Vornehmlich in der Lehrkräftebildung entwickelte sich ein eigener Diskurs. Im vorliegenden Aufsatz wird dafür plädiert, die immer wieder benannte spezifische, berufsperspektivische Zielsetzung des Forschenden Lernens in der Lehrkräftebildung stärker theoretisch auszuformulieren, um die Verständnisklärung von Forschendem Lernen vor diesem Hintergrund vorantreiben zu können. Damit einhergehend werden aktuelle Forschungsbefunde und -erkenntnisse des Forschenden Lernens im Praxissemester in Deutschland berichtet und diskutiert. Es werden mögliche Ansatzpunkte für die theoretische Weiterentwicklung und damit verbundene Implikationen für die Praxis aufgezeigt.
AU - Bloh, Bea
AU - Homt, Martina
ID - 45870
IS - 1
JF - PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- Und Professionsentwicklung. (PFLB)
TI - Forschungsperspektiven und -befunde zum Forschenden Lernen im Praxissemester. Plädoyer für eine Zielklärung
VL - 5
ER -
TY - JOUR
AU - Trier, Matthias
AU - Kundisch, Dennis
AU - Beverungen, Daniel
AU - Müller, Oliver
AU - Schryen, Guido
AU - Mirbabaie, Milad
AU - Trang, Simon
ID - 45872
JF - Business & Information Systems Engineering
KW - Information Systems
SN - 2363-7005
TI - Digital Responsibility
ER -
TY - JOUR
AB - BackgroundThe COVID-19 pandemic has led to a deepening of existing inequalities and a rollback of achievements made in gender equality. Women in Global Health (WGH) is a global movement that aims to achieve gender equality in health and increase female leadership in global health. Here, the aim was to understand how the pandemic affects the private and professional lives of women working in global health in different European countries. Suggestions for future pandemic preparedness including how gender perspectives should be integrated into pandemic preparedness and how a women's network such as WGH helped them to overcome the impact of the pandemic were explored.MethodsQualitative semi-structured interviews were conducted in September 2020 with a sample size of nine highly educated women with a mean age of 42.1 years from the different WGH European chapters. The participants were informed of the study and were formally asked for their consent. The interviews were held in English via an online videoconference platform and lasted 20–25 min each. The interviews were audio recorded and transcribed verbatim. Thematic analysis was conducted according to Mayring Qualitative Content Analysis using MAXQDA.ResultsThe pandemic has both positive and negative effects on the professional and private lives of women. It led to an increased workload and stress as well as pressure to publish on COVID-19-related themes. Increased childcare and household responsibilities represented a double burden. The available space was limited if other family members were also working from home. Positive aspects included more time for family or partners and reduced travel. The participants report on perceived gender differences in the experience of the pandemic. International cooperation is considered to be a key factor for future pandemic preparedness. Being part of a women's network such as WGH was perceived as being very supportive in difficult situations during the pandemic.ConclusionThis study provides unique insights into the experiences of women working in global health in different European countries. The COVID-19 pandemic influences their professional and private lives. Perceived gender differences are reported and suggest the need for integrating gender perspectives in pandemic preparedness. Networks for women, such as WGH, can facilitate the exchange of information in crises and provide women with professional and personal support.
AU - Hoffmann, Christina
AU - Schneider, Tamara
AU - Wannous, Chadia
AU - Nyberger, Karolina
AU - Haavardsson, Ingeborg
AU - Gilmore, Brynne
AU - Quigley, Paula
AU - Winkler, Andrea S.
AU - Ludwig, Sabine
ID - 42235
JF - Frontiers in Global Women's Health
KW - Industrial and Manufacturing Engineering
KW - Environmental Engineering
SN - 2673-5059
TI - Impact of COVID-19 on the private and professional lives of highly educated women working in global health in Europe—A qualitative study
VL - 4
ER -
TY - CHAP
AU - Götte, Thorsten
AU - Knollmann, Till
AU - Meyer auf der Heide, Friedhelm
AU - Scheideler, Christian
AU - Werthmann, Julian
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45875
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Capabilities and Limitations of Local Strategies in Dynamic Networks
VL - 412
ER -
TY - CONF
AU - Brunner-Schwer, Christian
AU - Biegler, Max
AU - Rethmeier, Michael
AU - Schmolke, Tobias
AU - Meschut, Gerson
AU - Spohr, Sebastian
AU - Eckstein, Lutz
ID - 45877
TI - A life cycle assessment of joining processes in the automotive industry, illustrated by the example of an EV battery case
ER -
TY - CHAP
AU - Karl, Holger
AU - Maack, Marten
AU - Meyer auf der Heide, Friedhelm
AU - Pukrop, Simon
AU - Redder, Adrian
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45895
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - On-The-Fly Compute Centers II: Execution of Composed Services in Configurable Compute Centers
VL - 412
ER -
TY - CHAP
AU - Blömer, Johannes
AU - Bobolz, Jan
AU - Eidens, Fabian
AU - Jager, Tibor
AU - Kramer, Paul
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45901
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Practical Cryptograhic Techniques for Secure and Privacy-Preserving Customer Loyalty Systems
VL - 412
ER -
TY - CHAP
AU - Boschmann, Alexander
AU - Clausing, Lennart
AU - Jentzsch, Felix
AU - Ghasemzadeh Mohammadi, Hassan
AU - Platzner, Marco
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45899
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Flexible Industrial Analytics on Reconfigurable Systems-On-Chip
VL - 412
ER -
TY - CHAP
AU - Wehrheim, Heike
AU - Platzner, Marco
AU - Bodden, Eric
AU - Schubert, Philipp
AU - Pauck, Felix
AU - Jakobs, Marie-Christine
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45888
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Verifying Software and Reconfigurable Hardware Services
VL - 412
ER -
TY - CHAP
AU - Gottschalk, Sebastian
AU - Vorbohle, Christian
AU - Kundisch, Dennis
AU - Engels, Gregor
AU - Wünderlich, Nacy V.
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45897
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Architectural Management of OTF Computing Markets
VL - 412
ER -
TY - CHAP
AU - Blömer, Johannes
AU - Eidens, Fabian
AU - Jager, Tibor
AU - Niehues, David
AU - Scheideler, Christian
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45891
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Robustness and Security
VL - 412
ER -
TY - CHAP
AU - Bäumer, Frederik Simon
AU - Chen, Wei-Fan
AU - Geierhos, Michaela
AU - Kersting, Joschka
AU - Wachsmuth, Henning
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45882
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Dialogue-based Requirement Compensation and Style-adjusted Data-to-text Generation
VL - 412
ER -
TY - CHAP
AU - Hanselle, Jonas Manuel
AU - Hüllermeier, Eyke
AU - Mohr, Felix
AU - Ngonga Ngomo, Axel-Cyrille
AU - Sherif, Mohamed
AU - Tornede, Alexander
AU - Wever, Marcel Dominik
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45884
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Configuration and Evaluation
VL - 412
ER -
TY - CHAP
AU - Haake, Claus-Jochen
AU - Hehenkamp, Burkhard
AU - Polevoy, Gleb
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45878
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - The Market for Services: Incentives, Algorithms, Implementation
VL - 412
ER -
TY - CHAP
AU - Wehrheim, Heike
AU - Hüllermeier, Eyke
AU - Becker, Steffen
AU - Becker, Matthias
AU - Richter, Cedric
AU - Sharma, Arnab
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45886
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Composition Analysis in Unknown Contexts
VL - 412
ER -
TY - GEN
AB - Label noise poses an important challenge in machine learning, especially in
deep learning, in which large models with high expressive power dominate the
field. Models of that kind are prone to memorizing incorrect labels, thereby
harming generalization performance. Many methods have been proposed to address
this problem, including robust loss functions and more complex label correction
approaches. Robust loss functions are appealing due to their simplicity, but
typically lack flexibility, while label correction usually adds substantial
complexity to the training setup. In this paper, we suggest to address the
shortcomings of both methodologies by "ambiguating" the target information,
adding additional, complementary candidate labels in case the learner is not
sufficiently convinced of the observed training label. More precisely, we
leverage the framework of so-called superset learning to construct set-valued
targets based on a confidence threshold, which deliver imprecise yet more
reliable beliefs about the ground-truth, effectively helping the learner to
suppress the memorization effect. In an extensive empirical evaluation, our
method demonstrates favorable learning behavior on synthetic and real-world
noise, confirming the effectiveness in detecting and correcting erroneous
training labels.
AU - Lienen, Julian
AU - Hüllermeier, Eyke
ID - 45911
T2 - arXiv:2305.13764
TI - Mitigating Label Noise through Data Ambiguation
ER -
TY - GEN
AU - Raeisi Nafchi, Masood
ID - 45917
TI - Reconfigurable Random Forest Implementation on FPGA
ER -
TY - GEN
AU - Yadalam Murali Kumar, Nihal
ID - 45916
TI - Data Analytics for Predictive Maintenance of Time Series Data
ER -
TY - JOUR
AB - This paper aims to present an approach for the planning of carbon low heat supply in a future district heating system based on open data for German cities with existing district heating networks. One focus is on the integration of industrial waste heat and the uncertainty of future waste heat sources as well as restrictions on the use of biomass. For that purpose, knowledge about the energy demand is necessary. In a first step it is shown how the demand around a heating network is estimated with spatial data and a load profile is generated. Local available heat sources are examined according to their suitability and their kind of integration in the heating network. As heat production from different units are optimised, the development of a simulation model will be presented. The simulation is based on the optimisation of the operational costs of the used technologies for heating supply. Different scenarios covering various technologies and economic assumptions are applied. The results show the levelized costs of heating as well as the ecological performance. A sensitivity analysis shows the importance of uncertainties for the economic assumptions. The results showing levelized costs of heating as well as the ecological performance underlining the advantage of excess heat integration.
AU - Divkovic, Denis
AU - Knorr, Lukas
AU - Meschede, Henning
ID - 45931
JF - International Journal of Sustainable Energy Planning and Management
KW - Energy Engineering and Power Technology
KW - Renewable Energy
KW - Sustainability and the Environment
KW - Geography
KW - Planning and Development
SN - 2246-2929
TI - Design approach to extend and decarbonise existing district heating systems - case study for German cities
VL - 38
ER -
TY - JOUR
AB - Abstract
An error estimate for a canonical discretization of the harmonic map heat flow into spheres is derived. The numerical scheme uses standard finite elements with a nodal treatment of linearized unit-length constraints. The analysis is based on elementary approximation results and only uses the discrete weak formulation.
AU - Bartels, Sören
AU - Kovács, Balázs
AU - Wang, Zhangxian
ID - 45971
JF - IMA Journal of Numerical Analysis
KW - Applied Mathematics
KW - Computational Mathematics
KW - General Mathematics
SN - 0272-4979
TI - Error analysis for the numerical approximation of the harmonic map heat flow with nodal constraints
ER -
TY - JOUR
AB - Jede Schwangerschaft bringt physische, psychische und soziale Veränderungen mit sich. Diese können zu Stress und ambivalenten Gefühlen bei Schwangeren führen, die einen starken Einfluss auf das Wohlbefinden und die Gesundheit von Mutter und Kind haben. Zur Förderung eines komplikationslosen Verlaufs der Schwangerschaft wird in der Forschungsliteratur die Stärkung der gesundheitlichen Ressourcen gefordert. Das Zürcher Ressourcen Modell (ZRM) ist ein ressourcenaktivierendes Selbstmanagementtraining, welches nach aktuellen Studienergebnissen die Gefühlsregulierung unterstützen und Stress reduzieren kann. Ziel dieser Studie war die erstmalige Wirksamkeitsprüfung des ZRM in der Schwangerschaft. Angenommen wurde, dass durch die Aktivierung der persönlichen Ressourcen der Schwangeren das Stresserleben reduziert und das subjektive Wohlbefinden gesteigert werden kann. Die Konstrukte „Stress“ und „Wohlbefinden“ wurden anhand von fünf psychometrischen Parametern operationalisiert. Durchgeführt wurde eine quasiexperimentelle unkontrollierte 6‑stündige Online-Interventionsstudie mit dem ZRM im Januar 2021 an N = 32 Schwangeren, basierend auf einem Prä-Post-Follow-up-Design. Zur Überprüfung der gebildeten Hypothesen wurden einfaktorielle Varianzanalysen (rmANOVAs) durchgeführt.
Die 1-faktoriellen rmANOVAs ergaben, dass die ZRM-Intervention das Stresserleben allgemein und schwangerschaftsspezifisch sowie das Angsterleben signifikant senken konnte. Handlungsorientierung nach Misserfolg und emotionales Wohlbefinden konnten signifikant gesteigert werden. Hinsichtlich der subjektiven Vitalität ließ sich lediglich deskriptiv eine Steigerung der Werte verzeichnen.
Die ZRM-Intervention erwies sich als wirksame Methode zur Optimierung der Stressbewältigung und Steigerung des Wohlbefindens während der Schwangerschaft. Es kann zielführend sein, das ZRM-Training als Ergänzung zur üblichen Geburtsvorbereitung einzusetzen. Zukünftige Forschungsarbeiten sollten v. a. die Übertragbarkeit der Ergebnisse unter Einbindung einer Kontrollgruppe sicherstellen.
AU - Schneider, Tamara
AU - Weber, Julia
AU - Bauer, Nicola H.
ID - 45981
JF - Prävention und Gesundheitsförderung
KW - Public Health
KW - Environmental and Occupational Health
SN - 1861-6755
TI - „Löwenstark in der Schwangerschaft!“ Ressourcenaktivierung und Stressreduktion mit dem Zürcher Ressourcen Modell (ZRM®) – eine unkontrollierte Interventionsstudie
ER -
TY - CONF
AB - Variational Quantum Algorithms (VQAs), such as the Quantum Approximate
Optimization Algorithm (QAOA) of [Farhi, Goldstone, Gutmann, 2014], have seen
intense study towards near-term applications on quantum hardware. A crucial
parameter for VQAs is the depth of the variational ansatz used - the smaller
the depth, the more amenable the ansatz is to near-term quantum hardware in
that it gives the circuit a chance to be fully executed before the system
decoheres. This potential for depth reduction has made VQAs a staple of Noisy
Intermediate-Scale Quantum (NISQ)-era research.
In this work, we show that approximating the optimal depth for a given VQA
ansatz is intractable. Formally, we show that for any constant $\epsilon>0$, it
is QCMA-hard to approximate the optimal depth of a VQA ansatz within
multiplicative factor $N^{1-\epsilon}$, for $N$ denoting the encoding size of
the VQA instance. (Here, Quantum Classical Merlin-Arthur (QCMA) is a quantum
generalization of NP.) We then show that this hardness persists even in the
"simpler" setting of QAOAs. To our knowledge, this yields the first natural
QCMA-hard-to-approximate problems. To achieve these results, we bypass the need
for a PCP theorem for QCMA by appealing to the disperser-based NP-hardness of
approximation construction of [Umans, FOCS 1999].
AU - Bittel, Lennart
AU - Gharibian, Sevag
AU - Kliesch, Martin
ID - 34138
IS - 34
T2 - Proceedings of the 38th Computational Complexity Conference (CCC)
TI - The Optimal Depth of Variational Quantum Algorithms Is QCMA-Hard to Approximate
VL - 264
ER -
TY - CHAP
AU - Müller, Inez
ED - Böker, Ines
ID - 45990
SN - 978-3-8260-7919-1
T2 - Interkulturelle Konstellationen in Literaturwissenschaft und Literaturdidaktik. Festschrift für Michael Hofmann
TI - Zur Darstellung der Afrikanischen Europäerin in Geschichte und Gegenwart - Sharon Dodua Otoos Roman 'Adas Raum'
ER -
TY - CHAP
AU - Elrich, Alina
AU - Kaimann, Daniel
AU - Fahr, René
AU - Kundisch, Dennis
AU - Mir Djawadi, Behnud
AU - Müller, Michelle
AU - Poniatowski, Martin
AU - Schäfers, Sabrina
AU - Frick, Bernd
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45880
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Empirical Analysis in Markets for OTF Services
VL - 412
ER -
TY - JOUR
AU - Su, Ran
AU - Zhang, Jiahui
AU - Wong, Vienna
AU - Zhang, Dawei
AU - Yang, Yong
AU - Luo, Zheng‐Dong
AU - Wang, Xiaojing
AU - Wen, Hui
AU - Liu, Yang
AU - Seidel, Jan
AU - Yang, Xiaolong
AU - Pan, Ying
AU - Li, Fa‐tang
ID - 46018
JF - Advanced Materials
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - General Materials Science
SN - 0935-9648
TI - Engineering Sub‐Nanometer Hafnia‐Based Ferroelectric to Break The Scaling Relation for High‐Efficiency Piezocatalytic Water Splitting
ER -
TY - BOOK
AU - Schreckenberg, Carolin
ID - 46031
SN - 978-3-8288-4924-2
TI - Die junge Käthe Kollwitz in ihrer künstlerischen Findungsphase
VL - KONTEXT Kunst – Vermittlung – Kulturelle Bildung
ER -
TY - JOUR
AB - Intending to counteract Klein’s second discontinuity in teacher education, we explored and applied the innovation of “interface ePortfolio” in the context of a geometry course for preservice teachers (PSTs). The tool offers the possibility of implementing the design principle of profession orientation. In the article, we theoretically clarify what we understand by this principle and locate our innovative concept against this theoretical background. We empirically investigate the extent to which counteraction against the second discontinuity is successful by analyzing reflection texts created in the interface ePortfolio, focusing on PSTs’ perspectives. Our qualitative content analysis shows that most of them perceive the innovation as helpful in the intended sense and indicates that the course concept, in general, and the interface ePortfolio, in particular, have helped establish relevant links between the course content and their later work as teachers.
AU - Hoffmann, Max
AU - Biehler, Rolf
ID - 45786
JF - ZDM – Mathematics Education
KW - General Mathematics
KW - Education
SN - 1863-9690
TI - Implementing profession orientation as a design principle for overcoming Klein’s second discontinuity – preservice teacher’s perspectives on interface activities in the context of a geometry course
ER -
TY - JOUR
AU - Fochmann, Martin
AU - Heinemann-Heile, Vanessa
AU - Huber, Hans-Peter
AU - Maiterth, Ralf
AU - Sureth-Sloane, Caren
ID - 42897
IS - 2
JF - Steuer und Wirtschaft
TI - Zusatzkosten der Besteuerung – Eine Analyse des steuerlichen Verwaltungsaufwands und der subjektiv wahrgenommenen Steuerbelastung
VL - 100
ER -
TY - JOUR
AU - Dieter, Peter
AU - Stumpe, Miriam
AU - Ulmer, Marlin Wolf
AU - Schryen, Guido
ID - 45816
JF - Transportation Research Part D
TI - Anticipatory Assignment of Passengers to Meeting Points for Taxi-Ridesharing
VL - 121
ER -
TY - JOUR
AB - DNA origami nanostructures have emerged as functional materials for applications in various areas of science and technology. In particular, the transfer of the DNA origami shape into inorganic materials using...
AU - Pothineni, Bhanu Kiran
AU - Grundmeier, Guido
AU - Keller, Adrian
ID - 46061
JF - Nanoscale
KW - General Materials Science
SN - 2040-3364
TI - Cation-dependent assembly of hexagonal DNA origami lattices on SiO2 surfaces
ER -
TY - THES
AU - Pukrop, Simon
ID - 45781
TI - On Cloud Assisted, Restricted, and Reosurce Constrained Scheduling
ER -
TY - GEN
AU - Schneider, Fabian
ID - 46053
TI - Utilizing Redundancy in Distributed Heterogeneous Storage
ER -
TY - CHAP
AU - Schwabl, Franziska
AU - Daniel-Söltenfuß, Desiree
ID - 45918
SN - 2512-1170
T2 - Organisation zwischen Theorie und Praxis
TI - Gelingensbedingungen gestaltungsorientierter Schulentwicklung
ER -
TY - GEN
AU - Raeisi Nafchi, Masood
ID - 46075
TI - Reconfigurable Random Forest Implementation on FPGA
ER -
TY - CHAP
AU - Harnack, Maria
ED - Drascek, Daniel
ED - Groschwitz , Helmut
ED - Wolf, Gabriele
ID - 41849
T2 - Kulturerbe als kulturelle Praxis – Kulturerbe in der Beratungspraxis
TI - Potenziale der Kulturerbe-Konvention von 2003. Beispiele aus der Beratungspraxis der Landesstelle Immaterielles Kulturerbe NRW
ER -
TY - CHAP
AU - Mir Djawadi, Behnud
AU - Plaß, Sabrina
AU - Schäfers, Sabrina
ED - Gabbioneta, Claudia
ED - Clemente, Marco
ED - Greenwood, Royston
ID - 46088
SN - 0733-558X
T2 - Organizational Wrongdoing as the “Foundational” Grand Challenge: Consequences and Impact
TI - Peers: Powerful or Negligible? A Systematic Review on Peer Factors and Internal Whistleblowing
VL - 85
ER -
TY - GEN
AU - Ranade, Amruta
ID - 46087
TI - Graph Neural Network-based Anomaly Detection in Smart Grid Energy Consumption
ER -