Sciweavers

1177 search results - page 171 / 236
» A Database of Narrative Schemas
Sort
View
VLDB
2007
ACM
104views Database» more  VLDB 2007»
14 years 8 months ago
Inverse Functions in the AquaLogic Data Services Platform
When integrating data from heterogeneous sources, it is often necessary to transform both the schemas and the data from the underlying sources in order to present the integrated d...
Nicola Onose, Vinayak R. Borkar, Michael J. Carey
PODS
2004
ACM
86views Database» more  PODS 2004»
14 years 7 months ago
Frontiers of Tractability for Typechecking Simple XML Transformations
Typechecking consists of statically verifying whether the output of an XML transformation is always conform to an output type for documents satisfying a given input type. We focus...
Wim Martens, Frank Neven
EDBT
2006
ACM
150views Database» more  EDBT 2006»
14 years 7 months ago
Improving the Efficiency of XPath Execution on Relational Systems
: This work describes a method for processing XPath on a relational back-end that significantly limits the number of SQL joins required, takes advantage of the strengths of modern ...
Haris Georgiadis, Vasilis Vassalos
CIKM
2009
Springer
14 years 2 months ago
Inverted indexes vs. bitmap indexes in decision support systems
Bitmap indexes are widely used in Decision Support Systems (DSSs) to improve query performance. In this paper, we evaluate the use of compressed inverted indexes with adapted quer...
Truls A. Bjørklund, Nils Grimsmo, Johannes ...
DEXAW
2008
IEEE
183views Database» more  DEXAW 2008»
14 years 2 months ago
Audio-Visual Content Analysis in P2P Networks: The SAPIR Approach
Content based search in audio-visual collections requires media specific analysis for extracting low level features to be efficiently indexed and searched. We present the SAPIR ...
Walter Allasia, Fabrizio Falchi, Francesco Gallo, ...