Rau qhov kev txheeb xyuas logistic regression?

Cov txheej txheem:

Rau qhov kev txheeb xyuas logistic regression?
Rau qhov kev txheeb xyuas logistic regression?
Anonim

Logistic regression tsom xam yog siv los tshuaj xyuas cov koom haum ntawm (categorical lossis txuas ntxiv) tus kheej hloov pauv (s) nrog ib qho kev hloov pauv dichotomous. Qhov no yog qhov sib piv rau kev txheeb xyuas kab rov tav uas qhov sib txawv ntawm qhov sib txawv yog qhov sib txawv tsis tu ncua.

Koj txhais li cas txog kev ntsuas logistic regression?

Txhais cov txiaj ntsig tseem ceeb rau Binary Logistic Regression

  1. Kauj Ruam 1: Txiav txim siab seb qhov kev sib koom ua ke ntawm cov lus teb thiab lo lus twg yog qhov tseem ceeb.
  2. Kauj Ruam 2: Nkag siab qhov cuam tshuam ntawm cov neeg twv ua ntej.
  3. Kauj Ruam 3: Txiav txim siab seb tus qauv haum rau koj cov ntaub ntawv li cas.
  4. Kauj Ruam 4: Txiav txim siab seb tus qauv puas haum rau cov ntaub ntawv.

Thaum twg koj yuav siv logistic regression piv txwv?

Logistic regression yog siv los kwv yees qhov sib txawv ntawm qhov sib txawv. Hauv lwm lo lus, nws tau siv thaum qhov kev twv ua ntej yog categorical, piv txwv li, yog lossis tsis yog, qhov tseeb lossis tsis tseeb, 0 lossis 1. Qhov kev kwv yees qhov tshwm sim lossis cov khoom tsim tawm ntawm logistic regression tuaj yeem yog ib qho ntawm lawv, thiab tsis muaj qhov nruab nrab.

Yuav ua li cas logistic regression xam?

Cov qauv logistic zoo li no hu ua tus qauv log-kawg. Li no, hauv kev txheeb cais, Logistic Regression qee zaum hu ua logistic qauv lossis logit qauv. … Qhov sib txawv ntawm qhov sib txawv (tus cim LOSSIS) tsuas yog xam los ntawm qhov sib txawv ntawm kev ua kis las rau ib pab pawg faib los ntawm qhov sib txawv ntawm kev ua kisrau lwm pab pawg.

Koj qhia dab tsi hauv logistic regression?

Qhov kev tshaj tawm classical ntawm logistic regression suav nrog qhov sib txawv thiab 95% kev ntseeg siab ib ntus, nrog rau AUC rau kev ntsuas tus qauv sib txawv.

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