Xgbregressor yog dab tsi?
Xgbregressor yog dab tsi?

Video: Xgbregressor yog dab tsi?

Video: Xgbregressor yog dab tsi?
Video: XGBoost Regressor | Regression | Python 2024, Kaum ib hlis
Anonim

XGBoost yog ib qho kev siv ntawm gradient boosted txiav txim siab ntoo tsim rau kev ceev thiab kev ua tau zoo. Vim li cas XGBoost yuav tsum sib nrug ntawm koj cov cuab yeej kawm tshuab.

Cov lus nug tseem yog, XGBoost siv rau dab tsi?

XGBoost yog ib tug scalable thiab raug siv ntawm gradient boosting tshuab thiab nws tau ua pov thawj los thawb cov kev txwv ntawm kev suav lub zog rau boosted ntoo algorithms raws li nws tau tsim thiab tsim rau tib lub hom phiaj ntawm cov qauv kev ua tau zoo thiab kev suav ceev.

Ib yam li ntawd, DMatrix yog dab tsi? DMatrix yog cov ntaub ntawv sab hauv uas siv los ntawm XGBoost uas yog optimized rau ob qho tib si nco efficiency thiab kev kawm ceev. Koj tuaj yeem tsim DMatrix los ntawm numpy.arrays Parameters. data (os.

Kuj tseem paub yog, XGBoost ua haujlwm sab hauv li cas?

XGBoost ua haujlwm li cas . XGBoost yog qhov nrov thiab muaj txiaj ntsig qhib qhov kev siv ntawm gradient boosted ntoo algorithm. Gradient boosting yog ib qho kev saib xyuas kev kawm algorithm, uas sim ua kom raug kwv yees lub hom phiaj sib txawv los ntawm kev sib txuas cov kwv yees ntawm cov qauv yooj yim, tsis muaj zog.

Qhov txawv ntawm XGBoost thiab GBM yog dab tsi?

@jbowman muaj cov lus teb yog: XGBoost yog ib qho kev siv ntawm GBM . GBM yog ib qho algorithm thiab koj tuaj yeem pom cov ntsiab lus hauv Greedy Function Approximation: A Gradient Boosting Machine. XGBoost yog qhov kev siv ntawm cov GBM , koj tuaj yeem configure hauv GBM rau tus kawm hauv paus yuav siv li cas.

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