Dab tsi yog pawg piav qhia nws lub luag haujlwm hauv datamining?
Dab tsi yog pawg piav qhia nws lub luag haujlwm hauv datamining?

Video: Dab tsi yog pawg piav qhia nws lub luag haujlwm hauv datamining?

Video: Dab tsi yog pawg piav qhia nws lub luag haujlwm hauv datamining?
Video: Npau Suav li no Txhob coj mus tham qhia luag lwm tus 2024, Hlis ntuj nqeg
Anonim

Taw qhia. Nws yog ib cov ntaub ntawv mining txheej txheem siv los tso cov ntaub ntawv rau hauv lawv cov pab pawg muaj feem. Ua pawg yog tus txheej txheem ntawm partitioning cov ntaub ntawv (los yog cov khoom) rau hauv tib chav kawm ntawv, Cov ntaub ntawv nyob rau hauv ib chav kawm yog ntau zoo ib yam li txhua tsis yog rau cov nyob rau hauv lwm yam pawg.

Ntxiv rau qhov no, dab tsi yog kev siv pawg?

Ua pawg yog siv nyob rau hauv kev ua lag luam segmentation; qhov twg peb sim nplua cov neeg muas zaub uas zoo sib xws txawm hais tias tus cwj pwm los yog cwj pwm, duab segmentation / compression; qhov twg peb sim ua pawg zoo sib xws hauv cheeb tsam ua ke, sau ntawv pawg raws li cov ncauj lus, thiab lwm yam.

Ib tug kuj yuav nug, yog vim li cas peb thiaj li siv pawg soj ntsuam? Kev tshuaj xyuas pawg tuaj yeem yog cov cuab yeej siv cov ntaub ntawv muaj zog rau txhua lub koom haum uas xav txheeb xyuas cov neeg siv khoom sib cais, kev muag khoom, lossis lwm yam kev coj cwj pwm thiab yam khoom. Piv txwv li, cov neeg muab kev tuav pov hwm siv kev txheeb xyuas pawg txhawm rau txheeb xyuas kev dag ntxias, thiab cov tsev txhab nyiaj siv nws rau qhov qhab nia credit.

Tsis tas li ntawd, dab tsi yog pawg hauv cov ntaub ntawv mining nrog piv txwv?

Ua pawg yog cov txheej txheem ntawm kev ua ib pawg ntawm cov khoom tsis meej rau hauv cov chav kawm ntawm cov khoom zoo sib xws. A pawg ntawm cov ntaub ntawv cov khoom tuaj yeem kho raws li ib pawg. Thaum ua pawg tsom xam, peb thawj partition txheej ntawm cov ntaub ntawv mus rau hauv pab pawg raws li cov ntaub ntawv zoo sib xws thiab tom qab ntawd muab cov ntawv sau rau cov pab pawg.

Vim li cas K txhais tau tias kev sib cais yog siv?

Kev siv lag luam. Cov K - txhais tau hais tias pawg algorithm yog siv txhawm rau nrhiav cov pab pawg uas tsis tau sau meej meej hauv cov ntaub ntawv. Qhov no tuaj yeem yog siv kom paub meej tias cov kev xav ntawm kev lag luam hais txog hom pab pawg twg muaj nyob lossis txheeb xyuas cov pab pawg tsis paub hauv cov ntaub ntawv nyuaj.

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