255 search results - page 42 / 51 » Sampling Sparse Signals on the Sphere: Algorithms and Applic... |
KDD
2007
ACM
15 years 10 months ago
2007
ACM
We consider the problem of estimating occurrence rates of rare events for extremely sparse data, using pre-existing hierarchies to perform inference at multiple resolutions. In pa...
TSP
2010
14 years 4 months ago
2010
Abstract--Time-frequency analysis, such as the Gabor transform, plays an important role in many signal processing applications. The redundancy of such representations is often dire...
SI3D
2010
ACM
15 years 4 months ago
2010
ACM
Pixel processing is becoming increasingly expensive for real-time applications due to the complexity of today’s shaders and highresolution framebuffers. However, most shading re...
CGF
2008
14 years 9 months ago
2008
The visibility function in direct illumination describes the binary visibility over a light source, e.g., an environment map. Intuitively, the visibility is often strongly correla...
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TSP
2011
14 years 4 months ago
2011
—Many complex dynamical phenomena can be effectively modeled by a system that switches among a set of conditionally linear dynamical modes. We consider two such models: the switc...