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AMW
2009
14 years 11 months ago
Consistent Query Answering in Data Warehouses
Abstract. A Data Warehouse (DW) is a data repository that organizes and physically integrates data from multiple sources under special kinds of schemas. A DW is composed by a set o...
Leopoldo E. Bertossi, Loreto Bravo, Mónica ...
PVLDB
2010
98views more  PVLDB 2010»
14 years 8 months ago
On-the-Fly Entity-Aware Query Processing in the Presence of Linkage
Entity linkage is central to almost every data integration and data cleaning scenario. Traditional techniques use some computed similarity among data structure to perform merges a...
Ekaterini Ioannou, Wolfgang Nejdl, Claudia Nieder&...
CSCW
2011
ACM
14 years 5 months ago
Three sequential positions of query repair in interactions with internet search engines
Internet search engines display understanding or misunderstanding of user intent in and through the particular batches of results they retrieve and their perceived relevance. Yet ...
Robert J. Moore, Elizabeth F. Churchill, Raj Gopal...
ICDE
2005
IEEE
103views Database» more  ICDE 2005»
15 years 11 months ago
Vectorizing and Querying Large XML Repositories
Vertical partitioning is a well-known technique for optimizing query performance in relational databases. An extreme form of this technique, which we call vectorization, is to sto...
Peter Buneman, Byron Choi, Wenfei Fan, Robert Hutc...
SIGMOD
2009
ACM
150views Database» more  SIGMOD 2009»
15 years 10 months ago
DBDOC: querying and browsing databases and interrelated documents
Large collections of documents are commonly created around a database, where a typical database schema may contain hundreds of tables and thousands of columns. We developed a syst...
Carlos Garcia-Alvarado, Carlos Ordonez, Zhibo Chen...