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WIOPT
2011
IEEE
14 years 5 months ago
Network utility maximization over partially observable Markovian channels
Abstract—This paper considers maximizing throughput utility in a multi-user network with partially observable Markov ON/OFF channels. Instantaneous channel states are never known...
Chih-Ping Li, Michael J. Neely
CHI
2011
ACM
14 years 5 months ago
Fit4life: the design of a persuasive technology promoting healthy behavior and ideal weight
This is a critical design paper offering a possible scenario of use intended to provoke reflection about values and politics of design in persuasive computing. We describe the des...
Stephen Purpura, Victoria Schwanda, Kaiton William...
CHI
2011
ACM
14 years 5 months ago
The mathematical imagery trainer: from embodied interaction to conceptual learning
We introduce an embodied-interaction instructional design, the Mathematical Imagery Trainer (MIT), for helping young students develop grounded understanding of proportional equiva...
Mark Howison, Dragan Trninic, Daniel Reinholz, Dor...
CHI
2011
ACM
14 years 5 months ago
Synchronous interaction among hundreds: an evaluation of a conference in an avatar-based virtual environment
This paper presents the first in-depth evaluation of a large multi-format virtual conference. The conference took place in an avatar-based 3D virtual world with spatialized audio,...
Thomas Erickson, N. Sadat Shami, Wendy A. Kellogg,...
CHI
2011
ACM
14 years 5 months ago
Motionbeam: a metaphor for character interaction with handheld projectors
We present the MotionBeam metaphor for character interaction with handheld projectors. Our work draws from the tradition of pre-cinema handheld projectors that use direct physical...
Karl D. D. Willis, Ivan Poupyrev, Takaaki Shirator...