783 search results - page 64 / 157 » Improved approximation algorithms for the freeze-tag problem |
DAGSTUHL
2007
13 years 10 months ago
2007
We consider the problems of set partitioning into k clusters with minimum total cost and minimum of the maximum cost of a cluster. The cost function is given by an oracle, and we ...
SIGMOD
1999
ACM
14 years 1 months ago
1999
ACM
In large data warehousing environments, it is often advantageous to provide fast, approximate answers to complex aggregate queries based on statistical summaries of the full data....
SIAMCOMP
2011
13 years 3 months ago
2011
Abstract. In the 2nd Annual FOCS (1961), Chao-Kong Chow proved that every Boolean threshold function is uniquely determined by its degree-0 and degree-1 Fourier coefficients. These...
TASLP
2010
13 years 3 months ago
2010
We consider the problem of extracting the source signals from an under-determined convolutive mixture assuming known mixing filters. State-of-the-art methods operate in the time-fr...
SIAMIS
2010
13 years 7 months ago
2010
We present a novel deconvolution approach to accurately restore piecewise smooth signals from blurred data. The first stage uses Higher Order Total Variation restorations to obtai...