[1]
Towards automatic experimentation of educational knowledge
Games and education
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Liu, Yun-En
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Mandel, Travis
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Brunskill, Emma
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Popovic, Zoran
Proceedings of ACM CHI 2014 Conference on Human Factors in Computing Systems
2014-04-26
v.1
p.3349-3358
© Copyright 2014 ACM
Summary: We present a general automatic experimentation and hypothesis generation
framework that utilizes a large set of users to explore the effects of
different parts of an intervention parameter space on any objective function.
We also incorporate importance sampling, allowing us to run these automatic
experiments even if we cannot give out the exact intervention distributions
that we want. To show the utility of this framework, we present an
implementation in the domain of fractions and numberlines, using an online
educational game as the source of players. Our system is able to automatically
explore the parameter space and generate hypotheses about what types of
numberlines lead to maximal short-term transfer; testing on a separate dataset
shows the most promising hypotheses are valid. We briefly discuss our results
in the context of the wider educational literature, showing that one of our
results is not explained by current research on multiple fraction
representations, thus proving our ability to generate potentially interesting
hypotheses to test.
[2]
ContextType: using hand posture information to improve mobile touch screen
text entry
Papers: mobile text entry
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Goel, Mayank
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Jansen, Alex
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Mandel, Travis
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Patel, Shwetak N.
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Wobbrock, Jacob O.
Proceedings of ACM CHI 2013 Conference on Human Factors in Computing Systems
2013-04-27
v.1
p.2795-2798
© Copyright 2013 ACM
Summary: The challenge of mobile text entry is exacerbated as mobile devices are used
in a number of situations and with a number of hand postures. We introduce
ContextType, an adaptive text entry system that leverages information about a
user's hand posture (using two thumbs, the left thumb, the right thumb, or the
index finger) to improve mobile touch screen text entry. ContextType switches
between various keyboard models based on hand posture inference while typing.
ContextType combines the user's posture-specific touch pattern information with
a language model to classify the user's touch events as pressed keys. To create
our models, we collected usage patterns from 16 participants in each of the
four postures. In a subsequent study with the same 16 participants comparing
ContextType to a control condition, ContextType reduced total text entry error
rate by 20.6%.
[3]
INTERNET
User Experience Quotes
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Mandel, Theo
2012-08-03
Languages: English
Summary: Web usability, user interface design, Website usability, Web page usability,
application interface design, consulting, education
[4]
INTERNET
Theo Mandel, Ph.D., Usability & Interface Design Consultant
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Mandel, Theo
2006-07-18
United States, Arizona, Phoenix
Interface Design and Development, LLC
Keywords: Author, Educator, Consultant, interface design, usability evaluation,
prototyping
Languages: English
Summary: Theo Mandel, Ph.D. Author, Educator, Consultant in software interface design
and usability evaluation. Author of "The Elements of User Interface Design"
(Wiley, 1997)
[5]
AUTHORED BOOK
The Elements of User Interface Design
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Mandel, Theo
1997
p.440
John Wiley & Sons
1. Designing Quality Software User Interfaces
2. What Is a User Interface?
3. User Interface Models
4. The Psychology of Humans and Computers
5. The Golden Rules of User Interface Design
6. Computer Standards and User Interface Guidelines
7. Software Usability Testing
8. User Interface Evolution: Command-Lines and Menus
9. User Interface Evolution: Graphical User Interfaces
10. Object-Oriented User Interfaces: The New World
11. Object-Oriented User Interfaces: Meeting User Needs
12. An Iterative User Interface Design Process
13. The Interface Designer's Toolkit
14. Help, Advisors, Wizards, and Multimedia
15. Social User Interfaces and Intelligent Agents
16. The New World of PC-Internet User Interfaces
