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» Efficiently Ordering Query Plans for Data Integration
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AMW
2010
15 years 6 months ago
Generating XML/GML Schemas from Geographic Conceptual Schemas
Abstract. A large volume of data with complex structures is currently represented in GML (Geography Markup Language) for storing and exchanging geographic information. As the size ...
André C. Hora, Clodoveu A. Davis Jr., Mirel...
VLDB
2004
ACM
123views Database» more  VLDB 2004»
15 years 10 months ago
CORDS: Automatic Generation of Correlation Statistics in DB2
When query optimizers erroneously assume that database columns are statistically independent, they can underestimate the selectivities of conjunctive predicates by orders of magni...
Ihab F. Ilyas, Volker Markl, Peter J. Haas, Paul G...
ICDE
2010
IEEE
288views Database» more  ICDE 2010»
16 years 4 months ago
Fast In-Memory XPath Search using Compressed Indexes
A large fraction of an XML document typically consists of text data. The XPath query language allows text search via the equal, contains, and starts-with predicates. Such predicate...
Diego Arroyuelo, Francisco Claude, Sebastian Manet...
208
Voted
PVLDB
2010
195views more  PVLDB 2010»
14 years 11 months ago
Trie-Join: Efficient Trie-based String Similarity Joins with Edit-Distance Constraints
A string similarity join finds similar pairs between two collections of strings. It is an essential operation in many applications, such as data integration and cleaning, and has ...
Jiannan Wang, Guoliang Li, Jianhua Feng
164
Voted
SSDBM
1999
IEEE
118views Database» more  SSDBM 1999»
15 years 8 months ago
Evaluation of Ad Hoc OLAP: In-Place Computation
Large scale data analysis and mining activities, such as identifying interesting trends, making unusual patterns to stand out and verifying hypotheses, require sophisticated infor...
Damianos Chatziantoniou