Sciweavers

1846 search results - page 135 / 370
» Generating query substitutions
Sort
View
AMW
2009
13 years 9 months ago
Using Patterns for Faster and Scalable Rewriting of Conjunctive Queries
Abstract. Rewriting of conjunctive queries using views has many applications in database and data integration. We investigate ways to improve performance of rewriting and propose a...
Ali Kiani, Nematollaah Shiri
SIGIR
2002
ACM
13 years 7 months ago
Term-specific smoothing for the language modeling approach to information retrieval: the importance of a query term
This paper follows a formal approach to information retrieval based on statistical language models. By introducing some simple reformulations of the basic language modeling approa...
Djoerd Hiemstra
PVLDB
2010
98views more  PVLDB 2010»
13 years 6 months ago
On-the-Fly Entity-Aware Query Processing in the Presence of Linkage
Entity linkage is central to almost every data integration and data cleaning scenario. Traditional techniques use some computed similarity among data structure to perform merges a...
Ekaterini Ioannou, Wolfgang Nejdl, Claudia Nieder&...
VIS
2007
IEEE
105views Visualization» more  VIS 2007»
14 years 9 months ago
Variable Interactions in Query-Driven Visualization
Our ability to generate ever-larger, increasingly-complex data, has established the need for scalable methods that identify, and provide insight into, important variable trends and...
Luke J. Gosink, John C. Anderson, E. Wes Bethel,...
SIGMOD
2009
ACM
150views Database» more  SIGMOD 2009»
14 years 8 months ago
DBDOC: querying and browsing databases and interrelated documents
Large collections of documents are commonly created around a database, where a typical database schema may contain hundreds of tables and thousands of columns. We developed a syst...
Carlos Garcia-Alvarado, Carlos Ordonez, Zhibo Chen...