Sciweavers

8220 search results - page 1244 / 1644
» Querying XML Data
Sort
View
SIGMOD
2004
ACM
150views Database» more  SIGMOD 2004»
16 years 7 months ago
When one Sample is not Enough: Improving Text Database Selection Using Shrinkage
Database selection is an important step when searching over large numbers of distributed text databases. The database selection task relies on statistical summaries of the databas...
Panagiotis G. Ipeirotis, Luis Gravano
SIGMOD
2002
ACM
129views Database» more  SIGMOD 2002»
16 years 7 months ago
Dwarf: shrinking the PetaCube
Dwarf is a highly compressed structure for computing, storing, and querying data cubes. Dwarf identifies prefix and suffix structural redundancies and factors them out by coalesci...
Yannis Sismanis, Antonios Deligiannakis, Nick Rous...
WSDM
2010
ACM
160views Data Mining» more  WSDM 2010»
16 years 5 months ago
Learning Concept Importance Using a Weighted Dependence Model
Modeling query concepts through term dependencies has been shown to have a significant positive effect on retrieval performance, especially for tasks such as web search, where rel...
Michael Bendersky, Donald Metzler, W. Bruce Croft
WSDM
2010
ACM
197views Data Mining» more  WSDM 2010»
16 years 2 months ago
Beyond DCG: user behavior as a predictor of a successful search
Web search engines are traditionally evaluated in terms of the relevance of web pages to individual queries. However, relevance of web pages does not tell the complete picture, si...
Ahmed Hassan, Rosie Jones, Kristina Lisa Klinkner
WSDM
2009
ACM
104views Data Mining» more  WSDM 2009»
16 years 2 months ago
Top-k aggregation using intersections of ranked inputs
There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this...
Ravi Kumar, Kunal Punera, Torsten Suel, Sergei Vas...
« Prev « First page 1244 / 1644 Last » Next »