Yuav ua li cas ua ntej hauv tshuab kev kawm?

Cov txheej txheem:

Yuav ua li cas ua ntej hauv tshuab kev kawm?
Yuav ua li cas ua ntej hauv tshuab kev kawm?

Video: Yuav ua li cas ua ntej hauv tshuab kev kawm?

Video: Yuav ua li cas ua ntej hauv tshuab kev kawm?
Video: yuav coj li cas kom luag nyiam 2024, Hlis ntuj nqeg
Anonim

Data preprocessing in Machine Learning yog hais txog cov txheej txheem ntawm kev npaj (ntxuav thiab teeb tsa) cov ntaub ntawv nyoos los ua kom haum rau lub tsev thiab kev cob qhia Machine Learning qauv.

Kev ua ntej txhais li cas hauv kev kawm tshuab?

Cov ntaub ntawv ua ntej yog txheej txheem ntawm kev npaj cov ntaub ntawv nyoos thiab ua kom haum rau lub tshuab kev kawm Nws yog thawj kauj ruam tseem ceeb thaum tsim cov qauv kev kawm tshuab. Thiab thaum ua txhua yam haujlwm nrog cov ntaub ntawv, nws yog qhov yuav tsum tau ntxuav nws thiab muab tso rau hauv ib txoj hauv kev. …

Yuav ua li cas ua ntej hauv tshuab kev kawm thiab vim li cas nws thiaj yuav tsum tau?

Xav tau cov ntaub ntawv ua ntejQee lub tshuab Kev Kawm Txuj Ci xav tau cov ntaub ntawv hauv ib hom ntawv teev tseg, piv txwv li, Random Forest algorithm tsis txhawb qhov tsis muaj nuj nqis, yog li txhawm rau ua tiav random hav zoov algorithm null qhov tseem ceeb yuav tsum tau tswj hwm los ntawm tus thawj raw cov ntaub ntawv teev.

Cov txheej txheem ua ntej yog dab tsi?

Cov txuj ci muab hauv cov ntaub ntawv ua ntej yog dab tsi?

  • Data Cleaning/Cleansing. Ntxuav cov ntaub ntawv "dub paug". Cov ntaub ntawv tiag tiag hauv ntiaj teb yuav ua tsis tiav, suab nrov, thiab tsis sib xws. …
  • Data Integration. Kev sib xyaw cov ntaub ntawv los ntawm ntau qhov chaw. …
  • Data Transformation. Tsim cov ntaub ntawv kub. …
  • Kev txo cov ntaub ntawv. Txo qhov sawv cev ntawm cov ntaub ntawv teev.

Yam ua ntej ntawm cov ntaub ntawv piav qhia yog dab tsi?

Cov ntaub ntawv ua ntej yog txheej txheem ntawm kev hloov cov ntaub ntawv nyoos rau hauv hom nkag siab. Nws kuj yog ib kauj ruam tseem ceeb hauv kev tshawb nrhiav cov ntaub ntawv vim peb tsis tuaj yeem ua haujlwm nrog cov ntaub ntawv nyoos. Cov ntaub ntawv zoo yuav tsum raug kuaj ua ntej siv tshuab kev kawm lossis cov ntaub ntawv mining algorithms.

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