Sciweavers

35 search results - page 6 / 7
» How to Determine Output Schemas of XQuery Queries
Sort
View
PODS
2010
ACM
242views Database» more  PODS 2010»
14 years 17 days ago
Certain answers for XML queries
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
Claire David, Leonid Libkin, Filip Murlak
SIGMOD
2010
ACM
170views Database» more  SIGMOD 2010»
14 years 9 days ago
Querying data provenance
Many advanced data management operations (e.g., incremental maintenance, trust assessment, debugging schema mappings, keyword search over databases, or query answering in probabil...
Grigoris Karvounarakis, Zachary G. Ives, Val Tanne...
DASFAA
2008
IEEE
151views Database» more  DASFAA 2008»
13 years 9 months ago
Efficient Top-k Search Across Heterogeneous XML Data Sources
An important issue arising from XML query relaxation is how to efficiently search the top-k best answers from a large number of XML data sources, while minimizing the searching cos...
Jianxin Li, Chengfei Liu, Jeffrey Xu Yu, Rui Zhou
ICDE
2004
IEEE
148views Database» more  ICDE 2004»
14 years 8 months ago
Approximate Selection Queries over Imprecise Data
We examine the problem of evaluating selection queries over imprecisely represented objects. Such objects are used either because they are much smaller in size than the precise on...
Iosif Lazaridis, Sharad Mehrotra
MM
2003
ACM
120views Multimedia» more  MM 2003»
14 years 22 days ago
Linking multimedia presentations with their symbolic source documents: algorithm and applications
An algorithm is presented that automatically matches images of presentation slides to the symbolic source file (e.g., PowerPointTM or AcrobatTM ) from which they were generated. T...
Berna Erol, Jonathan J. Hull, Dar-Shyang Lee