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| rdf:type
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| Description
| - Článek prezentuje přehled nejnovějších pokroků v oblasti logiky preferencí a navrhuje jejich použití v relačním datovém modelu. Pozornost je věnována zejména nemonotónním mechanismům usuzování a jejich začlenění do databázových aplikaci. Tyto mechanismy umožňují současně pojmout až 16 různých - ostrých a neostrých druhů preferenci včetně preferenci ceteris paribus. Aby byly nemonotónní mechanismy použitelné i pro praktické aplikace, je třeba vypustit předpoklad konzistentní specifikace preferenci. To je realizováno ve dvou krocích: všechny specifikace preferenci dovolují zahrnout určitou míru nejistoty a úplné uspořádání na množině světů je v sémantice nahrazeno uspořádáním částečným, což dovoluje vyjádřit případný konflikt mezi světy. Podstatné také je, že sémantika množiny preferenci je definována pomoci disjunktivního logického programu. (cs)
- The paper gives an overview of recent advances in the field of logic of preference and discusses their applicability in the frame of the relational data model. Namely, non-monotonic reasoning mechanisms with various kinds of preferences are reviewed in detail, and a way of suiting them to practical database applications is presented. These mechanisms enable to reason simultaneously about sixteen various kinds of preferences. To make the mechanisms useful for practical applications, the assumption of preference specification consistency has to be loosened. This is achieved in two steps: firstly, all the preference specifications are generalized to permit uncertainty, and secondly, not a total pre-order on worlds but a partial pre-order on worlds is used in the semantics, which enables to indicate some kind of conflict among worlds by their incomparability. Most importantly, the semantics of set of preferences is related to that of a disjunctive logic program.
- The paper gives an overview of recent advances in the field of logic of preference and discusses their applicability in the frame of the relational data model. Namely, non-monotonic reasoning mechanisms with various kinds of preferences are reviewed in detail, and a way of suiting them to practical database applications is presented. These mechanisms enable to reason simultaneously about sixteen various kinds of preferences. To make the mechanisms useful for practical applications, the assumption of preference specification consistency has to be loosened. This is achieved in two steps: firstly, all the preference specifications are generalized to permit uncertainty, and secondly, not a total pre-order on worlds but a partial pre-order on worlds is used in the semantics, which enables to indicate some kind of conflict among worlds by their incomparability. Most importantly, the semantics of set of preferences is related to that of a disjunctive logic program. (en)
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| Title
| - Non-monotonic Reasoning with Various Kinds of Preferences in the Relational Data Model Framework
- Non-monotonic Reasoning with Various Kinds of Preferences in the Relational Data Model Framework (en)
- Nemonotonní usuzování s různými druhy preferencí nad relačním datovým modelem (cs)
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| skos:prefLabel
| - Non-monotonic Reasoning with Various Kinds of Preferences in the Relational Data Model Framework
- Non-monotonic Reasoning with Various Kinds of Preferences in the Relational Data Model Framework (en)
- Nemonotonní usuzování s různými druhy preferencí nad relačním datovým modelem (cs)
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| skos:notation
| - RIV/67985807:_____/07:00087499!RIV08-AV0-67985807
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(1ET100300419), Z(AV0Z10300504)
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/67985807:_____/07:00087499
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - logic of preferences; relational data model; relational languages; disjunctive logic program (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Informačné technológie - Aplikácie a Teória
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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| is http://linked.open...avai/riv/vysledek
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