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ICASSP
2011
IEEE
12 years 8 months ago
Efficient discrete fractional Hirschman optimal transform and its application
All of the existing N-point discrete fractional signal transforms require O(N2 ) computation complexity. In this paper, we propose a new discrete fractional signal transform whose...
Wen-Liang Hsue, Soo-Chang Pei, Jian-Jiun Ding
CCGRID
2011
IEEE
12 years 8 months ago
Small Discrete Fourier Transforms on GPUs
– Efficient implementations of the Discrete Fourier Transform (DFT) for GPUs provide good performance with large data sizes, but are not competitive with CPU code for small data ...
S. Mitra, A. Srinivasan
SIGMOD
2005
ACM
154views Database» more  SIGMOD 2005»
14 years 5 months ago
SHIFT-SPLIT: I/O Efficient Maintenance of Wavelet-Transformed Multidimensional Data
The Discrete Wavelet Transform is a proven tool for a wide range of database applications. However, despite broad acceptance, some of its properties have not been fully explored a...
Mehrdad Jahangiri, Dimitris Sacharidis, Cyrus Shah...
KDD
2009
ACM
188views Data Mining» more  KDD 2009»
14 years 5 months ago
Mining discrete patterns via binary matrix factorization
Mining discrete patterns in binary data is important for subsampling, compression, and clustering. We consider rankone binary matrix approximations that identify the dominant patt...
Bao-Hong Shen, Shuiwang Ji, Jieping Ye
ICMCS
2009
IEEE
132views Multimedia» more  ICMCS 2009»
13 years 2 months ago
Video face recognition with graph-based semi-supervised learning
We consider the problem of classification of multiple observations of the same object, possibly under different transformations. We view this problem as a special case of semi-sup...
Effrosini Kokiopoulou, Pascal Frossard