24 search results - page 3 / 5 » Probabilistic Optimization of Top N Queries |
WSDM
2012
ACM
12 years 1 months ago
2012
ACM
We present a new approach for personalizing Web search results to a specific user. Ranking functions for Web search engines are typically trained by machine learning algorithms u...
SSDBM
2005
IEEE
13 years 11 months ago
2005
IEEE
Several studies have demonstrated the effectiveness of Haar wavelets in reducing large amounts of data down to compact wavelet synopses that can be used to obtain fast, accurate a...
ASIAN
2004
Springer
13 years 11 months ago
2004
Springer
Abstract. This text is an informal review of several randomized algorithms that have appeared over the past two decades and have proved instrumental in extracting efficiently quant...
VLDB
2007
ACM
14 years 6 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
SIGMOD
2002
ACM
14 years 6 months ago
2002
ACM
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...