2228 search results - page 180 / 446 » A System for Semantic Query Optimization |
136
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PPAM
2005
Springer
15 years 8 months ago
2005
Springer
Abstract. In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorit...
141
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EDBT
2008
ACM
16 years 3 months ago
2008
ACM
Most previous schema mapping works focus on creating mappings in specific data models for data transformation, failing to capture a richer set of possible relationships between sc...
147
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AIMSA
2006
Springer
15 years 7 months ago
2006
Springer
Although speech and language processing techniques achieved a relative maturity during the last decade, designing a spoken dialogue system is still a tailoring task because of the ...
167
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KDD
2012
ACM
13 years 5 months ago
2012
ACM
Heterogeneous information networks that contain multiple types of objects and links are ubiquitous in the real world, such as bibliographic networks, cyber-physical networks, and ...
146
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ESWS
2008
Springer
15 years 5 months ago
2008
Springer
We present SHIRI-Annot an automatic ontology-driven and unsupervised approach for the semantic annotation of documents which contain well structured parts and not well structured o...