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141
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TASLP
2010
15 years 18 days ago
2010
We consider the problem of extracting the source signals from an under-determined convolutive mixture assuming known mixing filters. State-of-the-art methods operate in the time-fr...
169
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TASLP
2010
15 years 18 days ago
2010
Spherical harmonic decomposition of wavefields is not only an active problem in acoustic signal processing but also a useful tool in a plethora of applications such as 3D beamform...
175
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SIAMIS
2011
14 years 8 months ago
2011
In this paper we propose an active contour model for segmentation based on the Chan-Vese model. The new model can capture inherent sharp features, i.e., the sharp corners of object...
188
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CCS
2011
ACM
14 years 5 months ago
2011
ACM
We develop a flexible information-flow type system for a range of encryption primitives, precisely reflecting their diverse functional and security features. Our rules enable e...
149
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CSCW
2012
ACM
14 years 1 months ago
2012
ACM
Gamification, the use of game mechanics in non-gaming applications, has been applied to various systems to encourage desired user behaviors. In this paper, we examine patterns of ...