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ICDE
2008
IEEE
121views Database» more  ICDE 2008»
16 years 7 months ago
Optimizing Hierarchical Access in OLAP Environment
In Online Analytic Processing (OLAP) deployments, different users, lines of businesses and business units often create adhoc aggregation hierarchies tailor-made for specific report...
Lipyeow Lim, Bishwaranjan Bhattacharjee
ICLP
2009
Springer
16 years 6 months ago
Qualified Computations in Functional Logic Programming
Abstract. Qualification has been recently introduced as a generalization of uncertainty in the field of Logic Programming. In this paper we investigate a more expressive language f...
Rafael Caballero, Mario Rodríguez-Artalejo,...
INEX
2004
Springer
15 years 11 months ago
TIJAH at INEX 2004 Modeling Phrases and Relevance Feedback
This paper discusses our participation in INEX using the TIJAH XML-IR system. We have enriched the TIJAH system, which follows a standard layered database architecture, with severa...
Vojkan Mihajlovic, Georgina Ramírez, Arjen ...
DLOG
2007
15 years 8 months ago
A Proof Theory for DL-Lite
Abstract. In this work we propose an alternative approach to inference in DLLite, based on a reduction to reasoning in an extension of function-free Horn Logic (EHL). We develop a ...
Diego Calvanese, Evgeny Kharlamov, Werner Nutt
LPAR
2010
Springer
15 years 4 months ago
Speed-Up Techniques for Negation in Grounding
Abstract. Grounding is the task of reducing a first order formula to ground formula that is equivalent on a given universe, and is important in many kinds of problem solving and re...
Amir Aavani, Shahab Tasharrofi, Gulay Ünel, E...