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» Complexity of Reasoning over Temporal Data Models
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ER
2010
Springer
168views Database» more  ER 2010»
9 years 2 months ago
Complexity of Reasoning over Temporal Data Models
Abstract. We investigate the computational complexity of reasoning over temporal extensions of conceptual data models. The temporal conceptual models we analyse include the standar...
Alessandro Artale, Roman Kontchakov, Vladislav Ryz...
FROCOS
2011
Springer
8 years 3 months ago
Tailoring Temporal Description Logics for Reasoning over Temporal Conceptual Models
Temporal data models have been used to describe how data can evolve in the context of temporal databases. Both the Extended Entity-Relationship (EER) model and the Uniļ¬ed Modelli...
Alessandro Artale, Roman Kontchakov, Vladislav Ryz...
SEBD
2001
145views Database» more  SEBD 2001»
9 years 5 months ago
Reasoning over Conceptual Schemas and Queries in Temporal Databases
This paper introduces a new logical formalism, intended for temporal conceptual modelling, as a natural combination of the well-known description logic DLR and point-based linear ...
Alessandro Artale, Enrico Franconi, Milenko Mosuro...
DEXAW
1999
IEEE
137views Database» more  DEXAW 1999»
9 years 8 months ago
Reasoning with Enhanced Temporal Entity-Relationship Models
Recent efforts in the Conceptual Modelling community have been devoted to properly capturing time-varying information, and several proposals of temporally enhanced Entity-Relation...
Alessandro Artale, Enrico Franconi
GEOS
2007
Springer
9 years 10 months ago
Supporting Complex Thematic, Spatial and Temporal Queries over Semantic Web Data
Spatial and temporal data are critical components in many applications. This is especially true in analytical domains such as national security and criminal investigation. Often, t...
Matthew Perry, Amit P. Sheth, Farshad Hakimpour, P...
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