51 search results - page 9 / 11 » Phase Transitions for Greedy Sparse Approximation Algorithms |
CORR
2008
Springer
13 years 5 months ago
2008
Springer
Compressive sensing (CS) is an alternative to Shannon/Nyquist sampling for acquisition of sparse or compressible signals that can be well approximated by just K N elements from a...
FOCM
2011
13 years 14 days ago
2011
We develop a new mathematical model for describing a dynamical system at limited resolution (or finite scale), and we give precise meaning to the notion of a dynamical system havi...
ICCV
2011
IEEE
12 years 5 months ago
2011
IEEE
We propose Compact And Real-time Descriptors (CARD) which can be computed very rapidly and be expressed by short binary codes. An efficient algorithm based on lookup tables is pr...
CIKM
1999
Springer
13 years 9 months ago
1999
Springer
On-line analytical processing (OLAP) requires e cient processing of complex decision support queries over very large databases. It is well accepted that pre-computed data cubes ca...
ICDM
2007
IEEE
13 years 11 months ago
2007
IEEE
Data mining algorithms use various Trie and bitmap-based representations to optimize the support (i.e., frequency) counting performance. In this paper, we compare the memory requi...