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SIGMOD
2008
ACM
140views Database» more  SIGMOD 2008»
14 years 11 months ago
Near-optimal algorithms for shared filter evaluation in data stream systems
We consider the problem of evaluating multiple overlapping queries defined on data streams, where each query is a conjunction of multiple filters and each filter may be shared acr...
Zhen Liu, Srinivasan Parthasarathy 0002, Anand Ran...
74
Voted
WWW
2005
ACM
16 years 8 days ago
A framework for determining necessary query set sizes to evaluate web search effectiveness
We describe a framework of bootstrapped hypothesis testing for estimating the confidence in one web search engine outperforming another over any randomly sampled query set of a gi...
Eric C. Jensen, Steven M. Beitzel, Ophir Frieder, ...
DASFAA
2004
IEEE
86views Database» more  DASFAA 2004»
15 years 3 months ago
Supporting Exploratory Queries in Databases
Users of database applications, especially in the e-commerce domain, often resort to exploratory "trial-and-error" queries since the underlying data space is huge and unf...
Abhijit Kadlag, Amol V. Wanjari, Juliana Freire, J...
ICDE
2000
IEEE
161views Database» more  ICDE 2000»
15 years 3 months ago
Efficient Query Refinement in Multimedia Databases
Increasing application demands are pushing database management systems (DBMSs) towards providing adequate and efficient support for content-based retrieval over multimedia objects...
Kaushik Chakrabarti, Kriengkrai Porkaew, Sharad Me...
ICDE
2005
IEEE
260views Database» more  ICDE 2005»
16 years 29 days ago
A Comparative Evaluation of Transparent Scaling Techniques for Dynamic Content Servers
We study several transparent techniques for scaling dynamic content web sites, and we evaluate their relative impact when used in combination. Full transparency implies strong dat...
Cristiana Amza, Alan L. Cox, Willy Zwaenepoel