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» PROQID: partial restarts of queries in distributed databases
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ICDE
2009
IEEE
156views Database» more  ICDE 2009»
14 years 9 months ago
Distributed Structural Relaxation of XPath Queries
Due to the structural heterogeneity of XML, queries are often interpreted approximately. This is achieved by relaxing the query and ranking the results based on their relevance to ...
Georgia Koloniari, Evaggelia Pitoura
SIGMOD
2010
ACM
308views Database» more  SIGMOD 2010»
13 years 6 months ago
GBLENDER: towards blending visual query formulation and query processing in graph databases
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...
Changjiu Jin, Sourav S. Bhowmick, Xiaokui Xiao, Ja...
CIKM
2001
Springer
14 years 4 days ago
The Effectiveness of Query Expansion for Distributed Information Retrieval
Query expansion has been shown effective for both single database retrieval and for distributed information retrieval where complete collection information is available. One might...
Paul Ogilvie, James P. Callan
DASFAA
2008
IEEE
114views Database» more  DASFAA 2008»
14 years 2 months ago
A P2P Meta-index for Spatio-temporal Moving Object Databases
In this paper we propose a distributed meta-index using a peer-to-peer protocol to allow spatio-temporal queries of moving objects on a large set of distributed database servers. W...
Cecilia Hernández, M. Andrea Rodrígu...
EDBT
2006
ACM
191views Database» more  EDBT 2006»
14 years 7 months ago
Parallelizing Skyline Queries for Scalable Distribution
Skyline queries help users make intelligent decisions over complex data, where different and often conflicting criteria are considered. Current skyline computation methods are rest...
Ping Wu, Caijie Zhang, Ying Feng, Ben Y. Zhao, Div...