641 search results - page 51 / 129 » Studying Query Expansion Effectiveness |
ICDE
2012
IEEE
11 years 11 months ago
2012
IEEE
— Accurate query performance prediction (QPP) is central to effective resource management, query optimization and query scheduling. Analytical cost models, used in current genera...
ICDE
2010
IEEE
14 years 3 months ago
2010
IEEE
—Many modern optimizers use a transformation rule based framework. While there has been a lot of work on identifying new transformation rules, there has been little work focused ...
EDBT
2008
ACM
14 years 9 months ago
2008
ACM
A form-based query interface is usually the preferred means to provide an unsophisticated user access to a database. Not only is such an interface easy to use, requiring no techni...
CIKM
2007
Springer
14 years 3 months ago
2007
Springer
We investigate the subtle cues to user identity that may be exploited in attacks on the privacy of users in web search query logs. We study the application of simple classifiers ...
INFOCOM
2002
IEEE
14 years 1 months ago
2002
IEEE
—Caching is a popular technique for reducing both server load and user response time in distributed systems. In this paper, we consider the question of whether caching might be e...