99 search results - page 1 / 20 » Reasoning over Extended ER Models |
ER
2007
Springer
13 years 10 months ago
2007
Springer
Abstract. We investigate the computational complexity of reasoning over various fragments of the Extended Entity-Relationship (EER) language, which includes a number of constructs:...
DEXAW
1999
IEEE
13 years 9 months ago
1999
IEEE
Recent efforts in the Conceptual Modelling community have been devoted to properly capturing time-varying information, and several proposals of temporally enhanced Entity-Relation...
APCCM
2006
13 years 6 months ago
2006
A wide range of database applications manage information that varies over time. Many of the underlying database schemas of these were designed using one of the several versions of...
ER
2010
Springer
13 years 3 months ago
2010
Springer
Abstract. We investigate the computational complexity of reasoning over temporal extensions of conceptual data models. The temporal conceptual models we analyse include the standar...
UM
2005
Springer
13 years 10 months ago
2005
Springer
This paper describes the process by which we constructed a user model for ERST - an External Representation Selection Tutor - which recommends external representations (ERs) for pa...