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» Discovering XML keys and foreign keys in queries
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PVLDB
2008
167views more  PVLDB 2008»
14 years 9 months ago
Managing and querying transaction-time databases under schema evolution
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
Hyun Jin Moon, Carlo Curino, Alin Deutsch, Chien-Y...
ICDE
2005
IEEE
122views Database» more  ICDE 2005»
15 years 3 months ago
Autonomous Index Optimization in XML Databases
Abstract— Defining suitable indexes is a major task when optimizing a database. Usually, a human database administrator defines a set of indexes in the design phase of the data...
Beda Christoph Hammerschmidt, Martin Kempa, Volker...
VLDB
2000
ACM
155views Database» more  VLDB 2000»
15 years 1 months ago
ICICLES: Self-Tuning Samples for Approximate Query Answering
Approximate query answering systems provide very fast alternatives to OLAP systems when applications are tolerant to small errors in query answers. Current sampling-based approach...
Venkatesh Ganti, Mong-Li Lee, Raghu Ramakrishnan
PVLDB
2010
118views more  PVLDB 2010»
14 years 7 months ago
Ten Thousand SQLs: Parallel Keyword Queries Computing
Keyword search in relational databases has been extensively studied. Given a relational database, a keyword query finds a set of interconnected tuple structures connected by fore...
Lu Qin, Jefferey Yu, Lijun Chang
ICDE
2003
IEEE
104views Database» more  ICDE 2003»
15 years 10 months ago
PIX: A System for Phrase Matching in XML Documents
We present a system that enables flexible and efficient phrase matching in XML documents. Since XML allows structured and unstructured information to be interleaved, phrase matchi...
Divesh Srivastava, Mary F. Fernández, Sihem...