Fuzzy Time Indications in Natural Languages Interfaces

Caluwe, Rita De; Cruyssen, B. Van der; Tré, Guy De; Devos, Filip; Maesfranckx, Patricia

doi:10.1007/978-1-4615-6075-3_9

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…This phenomenon has been studied a.o. in the field of artificial intelligence [13], [28] and language understanding [11], [55], [16]. An information system, however, cannot appeal to a similar interpretation functionality.…”

Section: Data Imperfections In Time Modellingmentioning

confidence: 99%

Flexible Approaches in Data, Information and Knowledge Management

2014

Studies in Computational Intelligence

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Section: Data Imperfections In Time Modellingmentioning

confidence: 99%

Flexible Approaches in Data, Information and Knowledge Management

2014

Studies in Computational Intelligence

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“…Several proposals for representing and handling imprecise time indications can be found in 9,10 . Also, the changes between several granularities can be seen as a source of imprecision 11 .…”

Section: Imperfection and Timementioning

confidence: 99%

A Relational Model for the Possibilistic Valid-time Approach

Pons¹,

Marín²,

Pons³

et al. 2012

IJCIS

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In real world, it is very common that some objects or concepts have properties with a time-variant or timerelated nature. Modelling this kind of objects or concepts in a (relational) database schema is possible, but time-variant and time-related attributes have an impact on the consistency of the entire database and must be appropriately managed. Therefore, temporal database models have been proposed to deal with this problem in the literature. Time can be affected by imprecision, vagueness and / or uncertainty, since existing time measuring devices are inherently imperfect. Additionally, human beings manage time using temporal indications and temporal notions, which may also be imprecise. However, the imperfection in human-used temporal indications is supported by human interpretation, whereas information systems need appropriate support in order to accomplish this task. Several proposals for dealing with such imperfections when modelling temporal data exist. Some of these proposals transform the temporal data into a compact representation but there is not a formal model for managing and handling uncertainty regarding temporal information. In this work we present a novel model to deal with imprecision in valid-time databases together with the definition and implementation of the data manipulation language, DML.

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“…Several proposals for representing and computing imprecise time indications can be found in [3] and [4]. Also, the changes between several granularities can be seen as a source of imprecision [6].…”

Section: Time In Databasesmentioning

confidence: 99%

Bipolar Fuzzy Querying of Temporal Databases

Billiet

Pons

Matthé

et al. 2011

Flexible Query Answering Systems

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Abstract. Temporal databases handle temporal aspects of the objects they describe with an eye to maintaining consistency regarding these temporal aspects. Several techniques have allowed these temporal aspects, along with the regular aspects of the objects, to be defined and queried in an imprecise way. In this paper, a new technique is proposed, which allows using both positive and negative -possibly imprecise-information in querying relational temporal databases. The technique is discussed and the issues which arise are dealt with in a consistent way.

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Fuzzy Time Indications in Natural Languages Interfaces

Cited by 5 publications

References 21 publications

Flexible Approaches in Data, Information and Knowledge Management

Flexible Approaches in Data, Information and Knowledge Management

A Relational Model for the Possibilistic Valid-time Approach

Bipolar Fuzzy Querying of Temporal Databases

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