Dab tsi yog txheej semantic hauv cov ntaub ntawv khaws cia?
Dab tsi yog txheej semantic hauv cov ntaub ntawv khaws cia?

Video: Dab tsi yog txheej semantic hauv cov ntaub ntawv khaws cia?

Video: Dab tsi yog txheej semantic hauv cov ntaub ntawv khaws cia?
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Anonim

A semantic txheej yog ib lub lag luam sawv cev ntawm cov tuam txhab cov ntaub ntawv uas pab cov neeg siv kawg nkag mus cov ntaub ntawv autonomously siv cov ntsiab lus ua lag luam. A semantic txheej maps complex cov ntaub ntawv rau hauv cov lus paub ua lag luam xws li cov khoom lag luam, cov neeg siv khoom, lossis cov nyiaj tau los los muab kev sib koom ua ke, sib koom ua ke pom ntawm cov ntaub ntawv thoob plaws lub koom haum.

Tom qab ntawd, ib tug kuj yuav nug, puas tableau muaj ib txheej semantic?

Hauv Tableau Semantic txheej pab kom centrally tswj cov ntaub ntawv qhov chaw, metadata, xam teb thiab lwm yam. Cov ntaub ntawv server yog tswj cov semantic txheej . Yog li siv qhov no semantic txheej cov neeg siv tuaj yeem txuas mus rau ib qho ntawm cov ntaub ntawv thiab ua haujlwm ntawm tib cov ntaub ntawv los ntawm adhoc querying.

Tom qab, lo lus nug yog, dab tsi yog conformed txheej? Kuj hu ua conformed txheej . Cov ntaub ntawv thov txheej - Kev lag luam logic yog siv rau cov ntaub ntawv ntxuav kom tsim cov ntaub ntawv npaj siv los ntawm cov ntawv thov (piv txwv li DW daim ntawv thov, txheej txheem tshuaj ntsuam xyuas qib siab, thiab lwm yam).

Kuj Paub, lub ntug twg yog siv rau semantic lag luam txheej?

Ib SAP Kev lag luam Yam khoom ntug ua haujlwm li a semantic txheej thiab tuaj yeem nyob nruab nrab ntawm cov ntaub ntawv qhia kev taw qhia - feem ntau cov ntaub ntawv khaws cia - thiab nws kev lag luam cov neeg siv.

Dab tsi yog semantic cov ntaub ntawv qauv hauv DBMS?

Cov ntaub ntawv semantic qauv (SDM) yog qib siab semantics-based database kev piav qhia thiab kev tsim qauv formalism ( database qauv ) rau databases. Nws yog kev xav cov ntaub ntawv qauv hauv qhov twg semantic cov ntaub ntawv suav nrog. Qhov no txhais tau tias cov qauv piav qhia lub ntsiab lus ntawm nws qhov xwm txheej.

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