All Outputs (46138)

Effects of Uncertainty Markers on Metacognitive Group Awareness and Regulation
Presentation / Conference Contribution
Radtke, A., & Schnaubert, L. (2022, June). Effects of Uncertainty Markers on Metacognitive Group Awareness and Regulation. Presented at 16th International Conference of the Learning Sciences (ICLS), Hiroshma, Japan and online

Social platforms provide a vast amount of resources for sharing, discussing, and searching for information. Thereby, learners need to monitor their understanding to metacognitively regulate their learning. Awareness of peers' metacognitions can affec... Read More about Effects of Uncertainty Markers on Metacognitive Group Awareness and Regulation.

Diffractive metasurface light-shaping from fiber endoscope probes for increased depth of field
Presentation / Conference Contribution
He, F., Gordon, G., Fuentes-Dominguez, R., Cousins, R., Mellor, C. J., Barton, J. . K., & Gordon, G. S. . D. Diffractive metasurface light-shaping from fiber endoscope probes for increased depth of field. Presented at Endoscopic Microscopy XVIII, San Francisco, USA

In applications such as optical coherence tomography, there is a need both to achieve large depth of field by light shaping and to maintain ultracompact form factors. Flat metasurfaces on optical fibers can achieve such requirements, with designs suc... Read More about Diffractive metasurface light-shaping from fiber endoscope probes for increased depth of field.

Designing for Reflection on our Daily Mental Workload
Presentation / Conference Contribution
Shaban, J., Wilson, M. L., & Sharples, S. (2023, April). Designing for Reflection on our Daily Mental Workload. Presented at CHI Workshop 2023: Integrating Individual and Social Contexts into Self-Reflection Technologies, Hamburg, Germany

This paper presents a research plan, at the outset of new doctoral research, designing for reflection on cognitive personal informatics and self-tracking of Mental Workload. The research will build upon the Mental Workload cycle, considering how peop... Read More about Designing for Reflection on our Daily Mental Workload.

AC/DC Converter Topologies Comparison for More Electric Aircraft Applications
Presentation / Conference Contribution
Khera, F. A., Gerada, C., Bozhko, S., & Wheeler, P. W. (2022, December). AC/DC Converter Topologies Comparison for More Electric Aircraft Applications. Presented at 7th IEEE Southern Power Electronics Conference (IEEE SPEC 2022), Nadi, Fiji

This paper compares the potential AC/DC power converter topologies that are appropriate for medium voltage and medium/high power aircraft applications. The power converter's rated power and the DC distribution voltage level in this application assume... Read More about AC/DC Converter Topologies Comparison for More Electric Aircraft Applications.

Global phase insensitive loss function for deep learning in holographic imaging and projection applications
Presentation / Conference Contribution
Zheng, Y., & Gordon, G. Global phase insensitive loss function for deep learning in holographic imaging and projection applications. Presented at AI and Optical Data Sciences IV, San Francisco, United States

Holographic imaging and projection are increasingly used for important applications such as augmented reality, 3D microscopy and imaging through optical fibres. However, there are emerging applications that require control or detection of phase, wher... Read More about Global phase insensitive loss function for deep learning in holographic imaging and projection applications.

Ultra-miniaturised spatial frequency domain imaging for improved early detection of gastrointestinal cancers
Presentation / Conference Contribution
Crowley, J., & Gordon, G. Ultra-miniaturised spatial frequency domain imaging for improved early detection of gastrointestinal cancers. Presented at Biomedical Applications of Light Scattering XIII, San Francisco, United States

The low five year-survival rates for gastrointestinal cancers evidences a strong clinical need to improve their early detection. Current imaging methods for early detection are expensive and rely on white light imaging which lacks sufficient contrast... Read More about Ultra-miniaturised spatial frequency domain imaging for improved early detection of gastrointestinal cancers.

Interplay between group awareness and internal scripts: How information about knowledge and controversies triggers the activation of problem-solving script components
Presentation / Conference Contribution
Schnaubert, L., Lichte, A., & Vogel, F. (2022, June). Interplay between group awareness and internal scripts: How information about knowledge and controversies triggers the activation of problem-solving script components. Presented at 15th International Conference on Computer Supported Collaborative Learning (CSCL), Hiroshima, Japan and online

Collaboration scripts and group awareness are two prominent factors for beneficial learning processes in CSCL. However, research mostly focuses on each factor independently. To inquire their mutual interaction, we investigate how different types of g... Read More about Interplay between group awareness and internal scripts: How information about knowledge and controversies triggers the activation of problem-solving script components.

Social-distance education: Struggling with cognition, emotion or motivation during SRL?
Presentation / Conference Contribution
Schnaubert, L., & Herold, B. (2020, November). Social-distance education: Struggling with cognition, emotion or motivation during SRL?. Paper presented at ICCE 2020 - 28th International Conference on Computers in Education, Online

The covid-19 pandemic dramatically changed the educational landscape as emergency remote teaching strategies had to be implemented almost worldwide changing educational practices and reducing student-teacher contact. This comes with many challenges f... Read More about Social-distance education: Struggling with cognition, emotion or motivation during SRL?.

Group awareness information to support academic help-seeking
Presentation / Conference Contribution
Schlusche, C., Schnaubert, L., & Bodemer, D. (2019, December). Group awareness information to support academic help-seeking. Presented at ICCE 2019 - 27th International Conference on Computers in Education, Kenting, Taiwan

Students are expected to deal with complex learning material, that regularly challenges their learning processes especially in the first semester. When students ask peers for explanations, they apply a functional learning strategy, known as academic... Read More about Group awareness information to support academic help-seeking.

Cognitive group awareness tools: Versatile devices to guide learners towards discrepancies
Presentation / Conference Contribution
Schnaubert, L., Heimbuch, S., Erkens, M., & Bodemer, D. (2019, December). Cognitive group awareness tools: Versatile devices to guide learners towards discrepancies. Presented at ICCE 2019 - 27th International Conference on Computers in Education, Proceedings, Kenting, Taiwan

Collaborative practices cover a vast variety of contexts and educational goals. Despite these differences, most means of support draw on between- and within-learner discrepancies as driving forces of individual and collaborative learning. These discr... Read More about Cognitive group awareness tools: Versatile devices to guide learners towards discrepancies.

Design und Evaluation von interaktiven webbasierten Bruchrechenaufgaben
Presentation / Conference Contribution
Eichelmann, A., Schnaubert, L., Narciss, S., Goguadze, G., & Melis, E. (2011, September). Design und Evaluation von interaktiven webbasierten Bruchrechenaufgaben. Presented at DeLFI 2011 - 9th e-Learning Fachtagung Informatik der Gesellschaft fur Informatik e.V., Dresden, Germany

Designing for Trust: Autonomous Animal-Centric Robotic & AI Systems
Presentation / Conference Contribution
Chamberlain, A., Benford, S., Fischer, J., Barnard, P., Greenhalgh, C., Row Farr, J., Tandavanitj, N., & Adams, M. (2022, December). Designing for Trust: Autonomous Animal-Centric Robotic & AI Systems. Presented at Proceedings of the Ninth International Conference on Animal-Computer Interaction, Newcastle, UK

From cat feeders and cat flaps to robot toys, humans are deploying increasingly autonomous systems to look after their pets. In parallel, industry is developing the next generation of autonomous systems to look after humans in the home – most notably... Read More about Designing for Trust: Autonomous Animal-Centric Robotic & AI Systems.

Comparison of Great Britain and Ukraine railway systems based on their EMC capability and electrification systems
Presentation / Conference Contribution
Adhena, H. H., Serdiuk, T., Thomas, D., & Greedy, S. (2023, January). Comparison of Great Britain and Ukraine railway systems based on their EMC capability and electrification systems. Presented at 2023 IEEE 7th Global Electromagnetic Compatibility Conference (GEMCCON), Nusa Dua, Indonesia

In this paper, a comparison based on electromagnetic compatibility capability, electromagnetic interference susceptibility, signalling, and electrification systems of Great Britain and Ukraine's railway systems will be analyzed.

State of the Art of Near-Field Scanning: Contemporary Standards and Methods
Presentation / Conference Contribution
Voskresenskyi, S., Aitbar, I., Ballukja, E., Niewiadomski, K., Thomas, D. W., & Greedy, S. (2023, January). State of the Art of Near-Field Scanning: Contemporary Standards and Methods. Presented at 2023 IEEE 7th Global Electromagnetic Compatibility Conference (GEMCCON), Nusa Dua, Indonesia

This paper presents a review of a number of techniques used for near-field scanning and detection of electromagnetic radiation sources. It also gives an overview of standards, related to technical requirements for the devices as well as scanning meth... Read More about State of the Art of Near-Field Scanning: Contemporary Standards and Methods.

Stochastic Approach to Modelling Emissions of Multiple Power Electronic Converters
Presentation / Conference Contribution
Ballukja, E., Aitbar, I., Niewiadomski, K., Thomas, D. W., Sumner, M., & Smolenski, R. (2023, January). Stochastic Approach to Modelling Emissions of Multiple Power Electronic Converters. Presented at 2023 IEEE 7th Global Electromagnetic Compatibility Conference (GEMCCON), Nusa Dua, Indonesia

The aim of this paper is to describe the effects of time delays (Δt) between the switching of several converters on the statistical quantification of the common mode current caused by a multiple converters set-up. To this end, the time delays are con... Read More about Stochastic Approach to Modelling Emissions of Multiple Power Electronic Converters.

An Overview of the Colombian Power System
Presentation / Conference Contribution
Bravo-Lopez, M., Marin, S., Terreros-Barreto, J. R., Garces, A., Molina, A., Rivera, M., & Wheeler, P. (2022, October). An Overview of the Colombian Power System. Presented at 2022 IEEE International Conference on Automation/XXV Congress of the Chilean Association of Automatic Control (ICA-ACCA), Curicó, Chile

The Colombian power system is facing a transition from hydro-thermal generation to a diversified mix of hydro, solar, and wind energy. This paper presents an overview of the current situation and the challenges of transitioning to a more sustainable... Read More about An Overview of the Colombian Power System.

Analysing the impact of local factors on the life cycle of metallic bridge girders
Presentation / Conference Contribution
Calvert, G., Hamer, M., Neves, L., & Andrews, J. (2023, July). Analysing the impact of local factors on the life cycle of metallic bridge girders. Presented at Eighth International Symposium on Life-Cycle Civil Engineering (IALCCE 2023), Milan, Italy

A fundamental component of a life cycle analysis of a bridge is the modelling of asset condition post-construction. To enhance the accuracy of bridge deterioration models, several studies have calibrated models based on cohorts that incorporate struc... Read More about Analysing the impact of local factors on the life cycle of metallic bridge girders.

Hardware Implementations with High Throughput, Low-Latency and Low-Area for Matrix Inversion
Presentation / Conference Contribution
Alqahtani, S., Zhu, Y., Shi, Q., Meng, X., & Wang, X. (2020, December). Hardware Implementations with High Throughput, Low-Latency and Low-Area for Matrix Inversion. Presented at 2020 International Conference on Field-Programmable Technology (ICFPT), Maui, HI, USA

This paper proposes two hardware architectures for matrix inversion, through the use of single and double-precision floating-point representations. The architectures use a modified version of the Gauss-Jordan algorithm that accelerates the processing... Read More about Hardware Implementations with High Throughput, Low-Latency and Low-Area for Matrix Inversion.

Tasks of a Different Color: How Crowdsourcing Practices Differ per Complex Task Type and Why This Matters
Presentation / Conference Contribution
Wang, Y., Papangelis, K., Lykourentzou, I., Saker, M., Chamberlain, A., Khan, V.-J., Liang, H.-N., & Yue, Y. (2023, April). Tasks of a Different Color: How Crowdsourcing Practices Differ per Complex Task Type and Why This Matters. Presented at CHI '23 CHI Conference on Human Factors in Computing Systems, Hamburg, Germany

Crowdsourcing in China is a thriving industry. Among its most interesting structures, we find crowdfarms, in which crowdworkers self-organize as small organizations to tackle macrotasks. Little, however, is known as to which practices these crowdfarm... Read More about Tasks of a Different Color: How Crowdsourcing Practices Differ per Complex Task Type and Why This Matters.

Your mileage may vary: Case study of a robotic telepresence pilot roll-out for a hybrid knowledge work organisation
Presentation / Conference Contribution
Boudouraki, A., Fischer, J. E., Reeves, S., & Rintel, S. (2023, April). Your mileage may vary: Case study of a robotic telepresence pilot roll-out for a hybrid knowledge work organisation. Presented at CHI '23: CHI Conference on Human Factors in Computing Systems, Hamburg, Germany

Organisations wishing to maintain employee satisfaction for hybrid collaboration need to explore flexible solutions that provide value for both remote and on-site employees. In this case study, we report on the roll-out of a telepresence robot pilot... Read More about Your mileage may vary: Case study of a robotic telepresence pilot roll-out for a hybrid knowledge work organisation.