335 search results - page 48 / 67 » A sampling approach for XML query selectivity estimation |
SIGMOD
2010
ACM
14 years 16 days ago
2010
ACM
Time-oriented progress estimation for parallel queries is a challenging problem that has received only limited attention. In this paper, we present ParaTimer, a new type of timere...
RTSS
2006
IEEE
14 years 1 months ago
2006
IEEE
With the emergence of large wired and wireless sensor networks, many real-time applications need to operate on continuous unbounded data streams. At the same time, many of these s...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
To retrieve similar database videos to a query clip, each video is typically represented by a sequence of highdimensional feature vectors. Given a query video containing m feature...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
We introduce a new theoretical derivation, evaluation methods, and extensive empirical analysis for an automatic query expansion framework in which model estimation is cast as a r...
SIGIR
2012
ACM
11 years 10 months ago
2012
ACM
Query auto-completion (QAC) is a common feature in modern search engines. High quality QAC candidates enhance search experience by saving users time that otherwise would be spent ...