9 search results - page 1 / 2 » Relational Algebra for Ranked Tables with Similarities: Prop... |
IDA
2007
Springer
13 years 11 months ago
2007
Springer
The paper presents new developments in an extension of Codd’s relational model of data. The extension consists in equipping domains of attribute values with a similarity relation...
SIGMOD
2005
ACM
14 years 4 months ago
2005
ACM
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
LPAR
2010
Springer
13 years 2 months ago
2010
Springer
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...
CIKM
2011
Springer
12 years 4 months ago
2011
Springer
In this paper, we propose an attribute retrieval approach which extracts and ranks attributes from HTML tables. We distinguish between class attribute retrieval and instance attri...
TAMC
2010
Springer
13 years 9 months ago
2010
Springer
We study possible formulations of algebraic propositional proof systems operating with noncommutative formulas. We observe that a simple formulation gives rise to systems at least ...