Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources.

Yingjie Li Jeff Heflin

Published in: ISWC (1) (2010)

Keyphrases

heterogeneous sources
data sources
query language
query processing
databases
data warehouse
tree patterns
database
user queries
web search
web search engines
multiple sources
multi source
decision trees
query logs
search queries
web sources