4074 search results - page 188 / 815 » Abstract Graph Transformation |
132
click to vote
SIGMOD
2005
ACM
15 years 8 months ago
2005
ACM
Recursion represents an important addition to the SQL language. This work focuses on the optimization of linear requeries in SQL. To provide an abstract framework for discussion, ...
126
click to vote
ECEASST
2010
14 years 12 months ago
2010
Abstract. The precise specification of software models is a major concern in model-driven design of object-oriented software. In this paper, we investigate how program graphs, a la...
93
Voted
ICCS
2009
Springer
15 years 9 months ago
2009
Springer
This paper is an extended abstract of the talk given at ICCS’09. Rules have long been considered as an essential component of knowledge-based systems. We focus here on conceptual...
123
Voted
VLDB
1993
ACM
15 years 6 months ago
1993
ACM
The enforcement of semantic integrity constraints in data and knowledge bases constitutea a major performance bottleneck. Integrity constraint simplification methods aim at reduci...
95
Voted
INCDM
2007
Springer
15 years 8 months ago
2007
Springer
Abstract. In a recommender system where users rate items we predict the rating of items users have not rated. We define a rating graph containing users and items as vertices and r...