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PIMRC
2010
IEEE
14 years 7 months ago
End-to-end performance of randomized distributed space-time codes
The exact expressions for symbol error probability and outage probability of randomized distributed space-time codes (RDSTC) under Rayleigh fading are derived. The diversity gain d...
Trung Q. Duong, Ozgu Alay, Elza Erkip, Hans-Jü...
ICMI
2009
Springer
123views Biometrics» more  ICMI 2009»
15 years 4 months ago
Learning and predicting multimodal daily life patterns from cell phones
In this paper, we investigate the multimodal nature of cell phone data in terms of discovering recurrent and rich patterns in people’s lives. We present a method that can discov...
Katayoun Farrahi, Daniel Gatica-Perez
TOG
2008
139views more  TOG 2008»
14 years 9 months ago
Logarithmic perspective shadow maps
We present a novel shadow map parameterization to reduce perspective aliasing artifacts for both point and directional light sources. We derive the aliasing error equations for bo...
Brandon Lloyd, Naga K. Govindaraju, Cory Quammen, ...
CSE
2009
IEEE
15 years 4 months ago
A Language of Life: Characterizing People Using Cell Phone Tracks
—Mobile devices can produce continuous streams of data which are often specific to the person carrying them. We show that cell phone tracks from the MIT Reality dataset can be u...
Alexy Khrabrov, George Cybenko
EMSOFT
2005
Springer
15 years 3 months ago
Compiler-guided register reliability improvement against soft errors
With the scaling of technology, transient errors caused by external particle strikes have become a critical challenge for microprocessor design. As embedded processors are widely ...
Jun Yan, Wei Zhang