4397 search results - page 86 / 880 » Relational Algebra Operations |
COORDINATION
2004
Springer
14 years 3 months ago
2004
Springer
This paper presents the StAC language and its operational semantics. StAC (Structured Activity Compensation) is a business process modelling language and a distinctive feature of t...
SIGMOD
1995
ACM
14 years 1 months ago
1995
ACM
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...
CONCUR
2008
Springer
13 years 12 months ago
2008
Springer
Abstract. Comparison between different formalisms and models is often by flattening structure and reducing them to behaviorally equivalent models e.g., automaton and Turing machine...
CRV
2007
IEEE
14 years 4 months ago
2007
IEEE
This paper presents a simple linear operator that accurately estimates the position and parameters of ellipse features. Based on the dual conic model, the operator avoids the inte...
ICCS
2005
Springer
14 years 3 months ago
2005
Springer
Abstract. Complex tensor contraction expressions arise in accurate electronic structure models in quantum chemistry, such as the Coupled Cluster method. Transformations using algeb...