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Temporal Data Mining with Temporal Constraints

2007
Nowadays, methods for discovering temporal knowledge try to extract more complete and representative patterns. The use of qualitative temporal constraints can be helpful in that aim, but its use should also involve methods for reasoning with them (instead of using them just as a high level representation) when a pattern consists of a constraint network
Manuel Campos   +2 more
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Temporal optimisations and temporal cardinality in the tOWL language

International Journal of Web Engineering and Technology, 2012
The tOWL language is a temporal web ontology language based on OWL-DL without nominals. The language enables the representation of time and time-related aspects, such as state transitions. The design choices of the language pose new challenges from a temporal perspective. One such challenge is the representation of temporal cardinality.
Viorel Milea   +3 more
openaire   +2 more sources

Temporality in Databases

2004
Temporality, or the time dimension is an essential aspect of the reality databases attempt to model and keep data about. However, in many database applications temporal data is treated in a rather ad hoc manner in spite of the fact that temporality should be an integral part of any data model.
openaire   +3 more sources

Temporal Lobectomy

Archives of Neurology, 2002
Temporal lobectomy is the most common neurosurgical procedure performed for medically refractory epilepsy. Temporal lobe epilepsy has historically been one of the most difficult forms of epilepsy to treat, and it carries a significant psychosocial and medical burden.
Michael R, Sperling, Jennifer K, Schnur
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“Temporal” Integrity Constraints in Temporal Databases

1995
In this paper we consider a class of integrity constraints which describe admissible lifecycles of database objects, and which can be specified by transition graphs. We present an algorithmic scheme for monitoring such constraints in temporal databases which efficiently support the concept of valid-time.
Michael Gertz 0001, Udo W. Lipeck
openaire   +1 more source

Temporal Interoperability in Multi+Temporal Databases

Journal of Database Management, 1998
A multidatabase system allows applications and users to access heterogeneous information through a common interface. Information is shared and exchanged in a transparent way within a federation of autonomous database systems. In a multi+temporal database, the connected systems may be standard (snapshot) databases, temporal databases (either valid-time,
openaire   +2 more sources

A recursive temporal algebra and temporal completeness

Proceedings Third International Workshop on Temporal Representation and Reasoning (TIME '96), 2002
This paper introduces a recursive temporal algebra based on temporal semantics for querying time-varying data. The algebra, called /spl Rfr/*, is based on a temporal relational data model in which a temporal database is modeled as a collection of time-varying relations. Each time-varying relation is a collection of ordinary relations indexed by moments
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Dynamic temporal interpretation contexts for temporal abstraction

Proceedings Third International Workshop on Temporal Representation and Reasoning (TIME '96), 1998
The temporal-abstraction task is the task of abstracting higher-level concepts from time-stamped data in a context-sensitive manner. We have developed and implemented a formal knowledge-based framework for decomposing and solving that task that supports acquisition, maintenance, reuse, and sharing of temporal-abstraction knowledge.
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Temporal References and Temporal Relations in Sentence Comprehension.

Journal of Experimental Psychology: Learning, Memory, and Cognition, 2004
The author investigated the interpretation of temporal references during comprehension of sentences containing a main and subordinate clause. Experiments 1 and 2 examined state and event subordinate clauses, respectively, and showed that subordinate temporal references overlapping with or close to the time of the main clause event were read faster than
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Temporal granularity for unanchored temporal data

Proceedings of the seventh international conference on Information and knowledge management, 1998
Goralwalla I. A.   +4 more
openaire   +3 more sources

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