Knowing the degree of antonymy between words has widespread applications in natural language processing. Manually-created lexicons have limited coverage and do not include most semantically contrasting word pairs. We ...
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On account of having real-time behavior and being easy to implement, spring meshes have been used for modeling deformable objects. Determining spring stiffness parameters for simulation of soft objects with high accur...
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First year professional Master's students at the Faculty of information, University of Toronto are taught how to analyze problem domains us-ing i∗ modeling in the final segment of the introductory course on "...
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First year professional Master's students at the Faculty of information, University of Toronto are taught how to analyze problem domains us-ing i∗ modeling in the final segment of the introductory course on "Systems Analysis and Process Innovation". Over the past several years, the course in-structors and teaching assistants have had the opportunity to observe and inter-act with the course students on the learning and use of the i∗ framework for modeling and analysis which makes it possible to make general observations regarding student experiences with the i∗ framework in an instructional setting. These observations are broad ranging and cover areas such as pedagogical de-sign, conceptual understanding and proficiency with the i∗ framework, domain modeling and analysis, and tools for i∗ modeling.
We briefly describe the design of a course on "Systems Analysis and Process Innovation", focusing especially on its project assignments. Students are introduced to process modeling and data modeling, followe...
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We briefly describe the design of a course on "Systems Analysis and Process Innovation", focusing especially on its project assignments. Students are introduced to process modeling and data modeling, followed by i∗ and Val-ue Network modeling. In their project assignments, students apply these model-ing techniques to real organizational settings to analyze an as-is situation and to explore to-be alternatives. A distinctive feature in the design of the project as-signments is that student teams split into 2 sub-teams in which each sub-team uses a different modeling technique to analyze the same domain setting. After each sub-team has separately completed its own work, the two sub-teams then compare their results for the domain problem setting, and more importantly, contrast the strengths and limitations of the two modeling approaches based on their project experience.
Conducting stress testing is essential to ensure the stability and performance of software systems post-launch. Among its various aspects, the real-time identification of the "Smooth Load Area"(SLA) is cruci...
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We present DataPrism, a new interactive visualization tool to aid analysis of multimodal activity data. DataPrism enables analysts to visualize, annotate, and link multiple time-based data streams, including video, lo...
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This paper describes a two-phase study conducted to determine optimal target sizes for one-handed thumb use of mobile handheld devices equipped with a touch-sensitive screen. Similar studies have provided recommendati...
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ISBN:
(纸本)1595933905
This paper describes a two-phase study conducted to determine optimal target sizes for one-handed thumb use of mobile handheld devices equipped with a touch-sensitive screen. Similar studies have provided recommendations for target sizes when using a mobile device with two hands plus a stylus, and interacting with a desktop-sized display with an index finger, but never for thumbs when holding a small device in a single hand. The first phase explored the required target size for single-target (discrete) pointing tasks, such as activating buttons, radio buttons or checkboxes. The second phase investigated optimal sizes for widgets used for tasks that involve a sequence of taps (serial), such as text entry. Since holding a device in one hand constrains thumb movement, we varied target positions to determine if performance depended on screen location. The results showed that while speed generally improved as targets grew, there were no significant differences in error rate between target sizes ≥ 9.6 mm in discrete tasks and targets ≥ 7.7 mm in serial tasks. Along with subjective ratings and the findings on hit response variability, we found that target size of 9.2 mm for discrete tasks and targets of 9.6 mm for serial tasks should be sufficiently large for one-handed thumb use on touchscreen-based handhelds without degrading performance and preference. Copyright 2006 ACM.
In this paper, we present two game tasks (flying game and spider game) in QuiQui's Giant Bounce, a computer game based on computer vision and hearing technology. The game consists of several game tasks with differ...
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ISBN:
(纸本)158113732X
In this paper, we present two game tasks (flying game and spider game) in QuiQui's Giant Bounce, a computer game based on computer vision and hearing technology. The game consists of several game tasks with different themes of movement. The tasks presented here have been designed and tested with children [2] and experts in the fields of children's physical, social and cognitive development. COPYRIGHT IS HELD BY THE AUTHOR/OWNER(S).
In major tech companies, monitoring server performance data with anomaly detection algorithms is crucial for assessing operational status. Existing models often require separate training or fine-tuning for each server...
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作者：
Ben ShneidermanDepartment of Computer Science
Human-Computer Interaction Laboratory of the Institute for Advanced Computer Studies and the Institute for Systems Research University of Maryland College Park MD
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