Sciweavers

2957 search results - page 374 / 592
» The Complexity of Polynomial-Time Approximation
Sort
View
RECOMB
2003
Springer
16 years 6 months ago
Finding recurrent sources in sequences
Many genomic sequences and, more generally, (multivariate) time series display tremendous variability. However, often it is reasonable to assume that the sequence is actually gene...
Aristides Gionis, Heikki Mannila
STOC
2004
ACM
122views Algorithms» more  STOC 2004»
16 years 6 months ago
Estimating the weight of metric minimum spanning trees in sublinear-time
In this paper we present a sublinear time (1+ )-approximation randomized algorithm to estimate the weight of the minimum spanning tree of an n-point metric space. The running time...
Artur Czumaj, Christian Sohler
SIGMOD
2005
ACM
220views Database» more  SIGMOD 2005»
16 years 6 months ago
Sampling Algorithms in a Stream Operator
Complex queries over high speed data streams often need to rely on approximations to keep up with their input. The research community has developed a rich literature on approximat...
Theodore Johnson, S. Muthukrishnan, Irina Rozenbau...
SDM
2009
SIAM
140views Data Mining» more  SDM 2009»
16 years 3 months ago
Straightforward Feature Selection for Scalable Latent Semantic Indexing.
Latent Semantic Indexing (LSI) has been validated to be effective on many small scale text collections. However, little evidence has shown its effectiveness on unsampled large sca...
Jun Yan, Shuicheng Yan, Ning Liu, Zheng Chen
ICCAD
2002
IEEE
175views Hardware» more  ICCAD 2002»
16 years 3 months ago
Efficient model order reduction via multi-node moment matching
- The new concept of Multi-node Moment Matching (MMM) is introduced in this paper. The MMM technique simultaneously matches the moments at several nodes of a circuit using explicit...
Yehea I. Ismail