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» Deductive Database Languages: Problems and Solutions
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166
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EDBT
2008
ACM
137views Database» more  EDBT 2008»
16 years 21 days ago
Data exchange in the presence of arithmetic comparisons
Data exchange is the problem of transforming data structured under a schema (called source) into data structured under a different schema (called target). The emphasis of data exc...
Foto N. Afrati, Chen Li, Vassia Pavlaki
150
Voted
POST
2012
218views more  POST 2012»
13 years 8 months ago
A Core Calculus for Provenance
Provenance is an increasing concern due to the revolution in sharing and processing scientific data on the Web and in other computer systems. It is proposed that many computer sys...
Umut A. Acar, Amal Ahmed, James Cheney, Roly Perer...
101
Voted
DATESO
2006
106views Database» more  DATESO 2006»
15 years 2 months ago
GeKon - Applying Novel Approaches to GIS Development
Abstract. This paper describes a few ideas concerned with geographical information systems (GIS) development. Those ideas come from a GIS development project named GeKon, which is ...
Tomas Richta
182
Voted
VLDB
2004
ACM
104views Database» more  VLDB 2004»
16 years 24 days ago
Retrieval effectiveness of an ontology-based model for information selection
Technology in the field of digital media generates huge amounts of nontextual information, audio, video, and images, along with more familiar textual information. The potential for...
Latifur Khan, Dennis McLeod, Eduard H. Hovy
PODS
2008
ACM
165views Database» more  PODS 2008»
16 years 21 days ago
Data exchange and schema mappings in open and closed worlds
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
Leonid Libkin, Cristina Sirangelo