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» Querying Complex Structured Databases
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IJOCI
2010
163views more  IJOCI 2010»
13 years 5 months ago
An Experimental Performance Comparison for Indexing Mobile Objects on the Plane
We present a time-efficient approach to index objects moving on the plane to efficiently answer range queries about their future positions. Each object is moving with non small ve...
Spyros Sioutas, George Papaloukopoulos, Kostas Tsi...
PVLDB
2010
147views more  PVLDB 2010»
13 years 3 months ago
Automatic Rule Refinement for Information Extraction
Rule-based information extraction from text is increasingly being used to populate databases and to support structured queries on unstructured text. Specification of suitable info...
Bin Liu 0002, Laura Chiticariu, Vivian Chu, H. V. ...
WWW
2007
ACM
14 years 9 months ago
Towards Deeper Understanding of the Search Interfaces of the Deep Web
Many databases have become Web-accessible through form-based search interfaces (i.e., HTML forms) that allow users to specify complex and precise queries to access the underlying ...
Hai He, Weiyi Meng, Yiyao Lu, Clement T. Yu, Zongh...
PODS
2009
ACM
122views Database» more  PODS 2009»
14 years 8 months ago
Satisfiability of downward XPath with data equality tests
In this work we investigate the satisfiability problem for the logic XPath( , , =), that includes all downward axes as well as equality and inequality tests. We address this probl...
Diego Figueira
SSDBM
2000
IEEE
87views Database» more  SSDBM 2000»
14 years 20 days ago
A Tool for Nesting and Clustering Large Objects
In implementations of non-standard database systems, large objects are often embedded within an aggregate of different types, i.e. a tuple. For a given size and access probabilit...
Stefan Dieker, Ralf Hartmut Güting, Miguel Ro...