204 search results - page 20 / 41 » Indexing for Data Models with Constraints and Classes |
DAGSTUHL
2004
13 years 8 months ago
2004
We study a metamodel for the Entity Relationship (ER) and the Relational data model. We do this by describing the syntax of the ER data model by introducing classes for ER schemata...
ICDAR
1995
IEEE
13 years 11 months ago
1995
IEEE
This paper describes substantial advances in the analysis (parsing) of diagrams using constraint grammars. The addition of set types to the grammar and spatial indexing of the dat...
SEMCO
2009
IEEE
14 years 2 months ago
2009
IEEE
— In this paper we present an automated support for software model evolution using a formal language constructs. For this, we extended Object Constraint Language (OCL) with actio...
HYBRID
2000
Springer
13 years 11 months ago
2000
Springer
Abstract. Switching linear dynamic systems (SLDS) attempt to describe a complex nonlinear dynamic system with a succession of linear models indexed by a switching variable. Unfortu...
EOR
2006
13 years 7 months ago
2006
This paper presents a new data classification method based on mixed-integer programming. Traditional approaches that are based on partitioning the data sets into two groups perfor...