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AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025

作者： Karasinski, John A. Shelat, Shivang Marquez, Jessica J. Human-Computer Interaction Group NASA Ames Research Center Moffett FieldCA94043 United States Human-Computer Interaction Group San José State University Moffett FieldCA94043 United States

ISBN: (数字)9781624107238

ISBN: (纸本)9781624107238

Enhancing crew capabilities for planning and scheduling activities is critical for periods of increased crew autonomy in future long-duration missions where communication delays preclude real-time ground support from Earth. Our study focuses on how to empower astronauts to manage their timelines independently from the experts in the mission control center (MCC). Our objective was to evaluate the impact of scheduling countermeasures on crew scheduling performance, workload, and usability in an analog mission environment. The study involved 16 crew members across four missions in the Limited Autonomy phase of human Exploration research Analog (HERA) Campaign 6. Crew members used Playbook to schedule one operational day for the entire crew. Half the participants accessed scheduling aids, and we compared their performance to a control group with no aids. Performance, workload, and usability were assessed using time on task, violation counts, NASA Task Load Index (NASA-TLX), and System Usability Scale (SUS). Participants using scheduling aids completed sessions 20% faster and committed 33% fewer violations. While these differences were not statistically significant due to the study’s operational limitations, trends indicate that scheduling aids may reduce errors and improve efficiency. These results can inform the design of scheduling tools to enhance astronauts’ autonomy in long-duration space missions, contributing to improved crew performance and reduced reliance on ground support. © 2025, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： NASA

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Teacher-centric educational recommender systems in K12 practice: Usage and evaluation

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Heliyon 2025年第2期11卷 e42012页

作者： Bhatt, Sohum M. Verbert, Katrien Van Den Noortgate, Wim Faculty of Psychology and Educational Sciences and imec research group itec KU Leuven Belgium Human and Computer Interaction Group Department of Computer Science KU Leuven Belgium

Personalized learning is hard to apply in classroom practice due to the workload of teachers. Recommender systems can help teachers make choices and hence personalize the learning environment. However, few studies have investigated how teachers use recommender systems in their practice. Educational recommender systems also require more investigation into how teachers assess recommendations to provide better systems in the future. Therefore, this research aimed to provide a better insight into the practical application of a teacher-centric educational recommender system, conduct a user-centric evaluation of the recommender system, and present teacher beliefs on the use of educational recommender systems for personalized learning. Our results indicated that teachers similarly used the recommender system by creating new lessons rather than adapting suggested lessons. Their evaluations of the recommender system highlighted the importance of accuracy and utility. Diversity and serendipity were considered to be less important. Teachers perceived recommender systems as a first step to personalized learning and as a tool for simplifying such learning. However, the current system did not affect the quality of personalized learning. Based on these results, we propose to focus more on accuracy and utility as opposed to diversity and serendipity for teacher-centric recommender system evaluation. For personalized learning, we conclude that, according to teachers, recommender systems can lead to more effective personalization by allowing teachers to focus on student needs. © 2025 The Authors

关键词： Data science applications in education Elementary education Improving classroom teaching Secondary education

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Blackboard vs. Desire2Learn: A system administrator's perspective on usability

Blackboard vs. Desire2Learn: A system administrator's perspe...

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2012 International Conference on Education and e-Learning Innovations, ICEELI 2012

作者： Lalande, Nicholas Grewal, Ratvinder Human-computer Interaction Research Group Laurentian University Sudbury ON Canada

ISBN: (纸本)9781467322249

Ease of use and navigation are important features when selecting a Content Management System (CMS). In this paper we compare two Learning Management Systems (LMS): Blackboard and Desire2Learn. For select administrative tasks we track the number of mouse clicks necessary, number of pages traversed, and data fields inputted. This comparison highlights some of the benefits and limitations between the two systems. © 2012 IEEE.

关键词： human computer interaction

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Initial results from a critical review of research on technology for older and disabled people

Initial results from a critical review of research on techno...

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15th International ACM SIGACCESS Conference on computers and Accessibility, ASSETS 2013

作者： Gallagher, Bláithín Petrie, Helen Human Computer Interaction Research Group Department of Computer Science University of York United Kingdom

ISBN: (纸本)9781450324052

In light of changing demographics and an ageing population, research on new technologies to support older people and people with disabilities in independent living is vital. This paper will present the results to date of a review, currently being undertaken, of recent research on new and emerging technologies designed for older people and people with disabilities. The review covers research published between 2005 and 2012 in a range of international peer-reviewed journals and conferences, in the areas of technology, human-computer interaction, disability and assistive devices. On the basis of this review of research, we are exploring what problems of older and disabled people are being addressed by researchers and developers;whether the research is motivated by user needs;the methodologies used and outcomes presented. First results will be presented in the poster. © Copyright 2010 ACM.

关键词： Assistive technology

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Web accessibility for older adults: Effects of line spacing and text justification on reading web pages

Web accessibility for older adults: Effects of line spacing ...

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15th International ACM SIGACCESS Conference on computers and Accessibility, ASSETS 2013

作者： Petrie, Helen Kamollimsakul, Sorachai Power, Christopher Human Computer Interaction Research Group Department of Computer Science University of York United Kingdom

ISBN: (纸本)9781450324052

Numerous guidelines for making websites more accessible for older users have been proposed, but few provide evidence from such users for their recommendations This study investigated effects of line spacing and text justification on younger (24 - 31 years) and older (65 - 78 years) adults' performance and preferences in web reading tasks. The three levels of line spacing (single, 1.5, and double) and 2 types of text justification (left only and left-right) were studied. Neither variable had a significant effect on performance measures, although both younger and older adults preferred 1.5 or double spacing over single spacing. There were no significant differences in preferences for left versus left-right justification. These results suggest that contrary to common recommendations, 1.5 or double spacing should be recommended for all users, not only older users and that no recommendation is needed on text justification. Copyright 2013 ACM.

关键词： Websites

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What cooks needs from multimedia and textually enhanced recipes

What cooks needs from multimedia and textually enhanced reci...

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13th IEEE International Symposium on Multimedia, ISM 2011

作者： Buykx, Lucy Petrie, Helen Human Computer Interaction Research Group Department of Computer Science University of York York United Kingdom

ISBN: (纸本)9780769545899

Using recipes in a step-by-step format with multimedia enhancements has been found to increase confidence and enjoyment of cooking but the field lacks research with cooks on the problems they encounter, so it is unclear what granularity of recipe step and associated multimedia would best support them. The current study observed 16 cooks prepare 3 dishes using recipes in 3 different formats to understand what problems cooks have with recipes. Recipe format had a significant effect on the ratings given to the recipe for clarity and ease of use but not on time to complete the recipe. Analysis of cooking activity and cooks' feedback shows that cooks want (i) step-by-step recipes with ingredient quantities in the recipe step, (ii) pictures of the interim states of the recipe, (iii) videos of preparation of unfamiliar ingredients, and (iv) videos of preparation techniques with different types of utensils. © 2011 IEEE.

关键词： User centered design

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Recipe sub-goals and graphs: An evaluation by cooks

Recipe sub-goals and graphs: An evaluation by cooks

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ACM Multimedia 2012 4th Workshop on Multimedia for Cooking and Eating Activities, CEA 2012

作者： Buykx, Lucy Petrie, Helen Human-Computer Interaction Research Group University of York York United Kingdom

ISBN: (纸本)9781450315920

Following recipes can be difficult for cooks. Many recipes use technical culinary language and condense their instructions into brief sentences, cooks may also get lost in long paragraphs as they jump around the recipe to find tasks to perform in parallel. Multimedia content has been shown to increase the confidence of cooks but few comparative evaluations have been reported. In this study we evaluated the effect of adding pictures of interim goal states to a plain text recipe and the effect of presenting recipe steps in a dependency graph representation. Initial results indicate that cooks value pictures of interim goals states to compare their ingredients against, and prefer a graph representation of a recipe because it supports the cook's non-linear path through recipe instructions. © 2012 ACM.

关键词： Cooking

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Handling negative assumptions in a generic user modeling framework 22nd

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22nd Annual German Conference on Artificial Intelligence (KI-98)

作者： Pohl, W GMD - National Research Center for Information Technology Human-Computer Interaction Research Group (FIT.MMK) Germany

ISBN: (纸本)3540650806

Traditionally, there have been two approaches to powerful logic-based user modeling: First, in the modal logic approach, there is one knowledge base that consists of formulas of one (modal) logic formalism. Second, the partition approach divides the user model into partial knowledge bases, mainly to distinguish between different types of assumptions about the user. For the user modeling shell system BGP-MS an approach to integrate partitions with modal logic was developed and later refined to become the user model representation and reasoning framework AsTRa, which is also applicable in the more general case of agent modeling. In this framework, however, there is a representational gap between partitions and modal logic. A specific kind of user model contents, which we call negative assumptions, falls into this gap. Since negative assumptions have been quite frequently used with BGP-MS, we developed specialized mechanisms for dealing with them. This paper gives a brief overview of AsTRa, and formally presents the above-mentioned mechanisms. Like the whole AsTRa framework, they are semantically related to modal logic, which is proven.

关键词： Formal logic

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A system for dynamic adaptation of web interfaces based on user interaction requirements

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11th International Conference on computers Helping People with Special Needs, ICCHP 2008

作者： Gonzalez-Pisano, Javier Rodriguez-Fernandez, Maria Gonzalez-Rodriguez, Martin Bobes-Bascaran, Jose Ramon Garcia-Marsa, Jaime Human Communication and Interaction Research Group Department of Computer Science University of Oviedo Spain

ISBN: (纸本)3540705392

This article makes the proposal for a software architecture that allows dynamic adaptation of Web interfaces depending on user interaction requirements, giving special attention to individuals who have any kind of disability. This task is achieved through several transformations on visual aspects of the Web pages such as changes on the sizes of objects, colors, relative position of the elements or navigation device used. The system separates the functionality of a Web site and its interface at runtime to customize later some of the elements of the interface according to the characteristics of the individual, taking advantage of the widespread use of Web standards such as CSS so that it is not necessary to use any additional platform for the specification of the interface. User information will be updated continuously through the use of interface autonomous agents that store data about navigation process, performing corrective actions to allow dynamic adaptation to the changing conditions of the user. © 2008 Springer-Verlag Berlin Heidelberg.

关键词： Websites

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Total cluster: A person agnostic clustering method for broadcast videos 14

Total cluster: A person agnostic clustering method for broad...

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9th Indian Conference on computer vision, Graphics and Image Processing, ICVGIP 2014

作者： Tapaswi, Makarand Parkhi, Omkar M. Rahtu, Esa Sommerlade, Eric Stiefelhagen, Rainer Zisserman, Andrew Computer Vision for Human Computer Interaction Karlsruhe Institute of Technology Germany Visual Geometry Group Department of Engineering Science University of Oxford United Kingdom Center for Machine Vision Research University of Oulu Finland

ISBN: (纸本)1595930361

The goal of this paper is unsupervised face clustering in edited video material - where face tracks arising from different people are assigned to separate clusters, with one cluster for each person. In particular we explore the extent to which faces can be clustered automatically without making an error. This is a very challenging problem given the variation in pose, lighting and expressions that can occur, and the similarities between different people. The novelty we bring is three fold: first, we show that a form of weak supervision is available from the editing structure of the material - the shots, threads and scenes that are standard in edited video;second, we show that by first clustering within scenes the number of face tracks can be significantly reduced with almost no errors;third, we propose an extension of the clustering method to entire episodes using exemplar SVMs based on the negative training data automatically harvested from the editing structure. The method is demonstrated on multiple episodes from two very different TV series, Scrubs and Buffy. For both series it is shown that we move towards our goal, and also outperform a number of baselines from previous works. Copyright is held by the authors.

关键词： Cluster analysis

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