Sciweavers

518 search results - page 92 / 104
» Beating a Random Assignment
Sort
View
STOC
2009
ACM
160views Algorithms» more  STOC 2009»
16 years 10 days ago
CSP gaps and reductions in the lasserre hierarchy
We study integrality gaps for SDP relaxations of constraint satisfaction problems, in the hierarchy of SDPs defined by Lasserre. Schoenebeck [25] recently showed the first integra...
Madhur Tulsiani
PERCOM
2009
ACM
16 years 8 days ago
Mobile Ad Hoc Networks: the DHT paradigm
In this paper, a DHT-based routing protocol which integrates at the network layer both traditional direct routing, i.e. MANET routing, and indirect key-based routing, i.e. P2P rout...
Marcello Caleffi
SIGMOD
2002
ACM
134views Database» more  SIGMOD 2002»
15 years 12 months ago
Wavelet synopses with error guarantees
Recent work has demonstrated the effectiveness of the wavelet decomposition in reducing large amounts of data to compact sets of wavelet coefficients (termed "wavelet synopse...
Minos N. Garofalakis, Phillip B. Gibbons
PODS
2005
ACM
151views Database» more  PODS 2005»
15 years 12 months ago
Estimating arbitrary subset sums with few probes
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
Noga Alon, Nick G. Duffield, Carsten Lund, Mikkel ...
WWW
2010
ACM
15 years 6 months ago
Automatic extraction of clickable structured web contents for name entity queries
Today the major web search engines answer queries by showing ten result snippets, which need to be inspected by users for identifying relevant results. In this paper we investigat...
Xiaoxin Yin, Wenzhao Tan, Xiao Li, Yi-Chin Tu