1582 search results - page 147 / 317 » On sparse signal representations |
135
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CIBCB
2007
IEEE
16 years 1 months ago
2007
IEEE
—Many dynamical processes can be represented as directed attributed graphs or Petri nets where relationships between various entities are explicitly expressed. Signaling networks...
171
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NIPS
2008
15 years 8 months ago
2008
We consider the problem of transforming a signal to a representation in which the components are statistically independent. When the signal is generated as a linear transformation...
139
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AMC
2010
15 years 6 months ago
2010
In this paper, we generalize the classical windowed Fourier transform (WFT) to quaternionvalued signals, called the quaternionic windowed Fourier transform (QWFT). Using the spect...
179
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SIGMOD
1999
ACM
15 years 11 months ago
1999
ACM
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
180
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NECO
2007
15 years 6 months ago
2007
We present a hierarchical architecture and learning algorithm for visual recognition and other visual inference tasks such as imagination, reconstruction of occluded images, and e...