AMABWIRIZA Yibanze

Guhagarara kare

Guhagarara hakiri kare ni tekiniki isanzwe ihagarika imyitozo yicyitegererezo mugihe imikorere yamakuru-yemewe yo kwemeza ihagarika gutera imbere.

2 min somaIbiherutse kuvugururwa

Incamake

It prevents wasted compute and overfitting in one simple rule.

Kwibira cyane

Iyo uhuguye urusobe rw'imyakura, imyitozo-yashizeho ikosa ikomeza guta ibihe nyuma yigihe, ariko mugihe runaka icyitegererezo gitangira gufata mu mutwe urusaku aho kwiga uburyo. Ikosa ryo Kwemeza rikurikira U-shusho: iragwa, ikubita byibuze, hanyuma izamuka nkibisanzwe bikwiranye. Guhagarara hakiri kare bireba ibipimo byemewe (gutakaza, ubunyangamugayo, F1) nyuma yigihe cyose bigahagarara mugihe binaniwe kunoza umubare wibihe byashizweho, byitwa kwihangana. Byibanze, urinda uburemere kuva mubihe byiza, ntabwo byanyuma. Nuburyo bumwe buhendutse bwo guhora kuko budasaba ibihano byinyongera kandi bigabanya neza uburemere bugenda buva kubitangira, bisa nkumwuka na L2 bisanzwe.

Ubushishozi

Gushyira mubikorwa bikurikirana amanota meza yo kwemeza hamwe na compteur. Buri gihe, niba ibipimo byateye imbere birenze min_delta ntarengwa, uzigama igenzura hanyuma usubize konte; bitabaye ibyo ukongera. Iyo compteur igeze kumupaka wo kwihangana, imyitozo irahagarara kandi igenzura ryiza rirasubizwa. Kwihangana bigurisha imbaraga zirwanya urusaku rwo kwemeza igihe cyamahugurwa yose, kandi mubisanzwe bihujwe nigipimo cyo kwiga nubunini bwicyiciro.

Ingaruka z'Ingamba

Ibyemezo bisobanutse

Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza.

Igiciro na bije

Urashobora kubaza ibibazo byiza byo gushyira mubikorwa mbere yo gukoresha amafaranga cyangwa igihe.

Itsinda hamwe nakazi

Amakipe asangiye ibitekerezo akora ibicuruzwa byiza, politiki, nibyemezo byo kwiga.

Kazoza ko Guhagarara kare

Guhagarara hakiri kare bikomeza kuba umwirondoro hafi ya buri muyoboro wamahugurwa, ariko uruhare rwayo rurahinduka. Hamwe na moderi nini cyane yatojwe mugihe kimwe kuri corpora nini, ibihe bya kera bishingiye ku guhagarara bisimburwa no gukurikirana ingengo yimari ya gahunda na gahunda yo kwiga-igipimo. Tegereza guhuza cyane hamwe nubushakashatsi bwihuse bwa hyperparameter, ibipimo byinshi-bipimo, hamwe ningengabihe-iteganya ingengo yimishinga igena igihe imyitozo ikomeje itagisobanura ibiciro bya compte na karubone.

Gushyira mu bikorwa Isi

A Kera Kera Guhagarika guhamagarwa wihanganye = 10 kugenzura val_gutakaza no kugarura_best_ibiro = Nukuri kumashusho

Guhagarika igiti cyongerewe imbaraga (XGBoost kare_guhagarika_rounds) mugihe cyo kwemeza AUC plateaus kugirango wirinde kongeramo ibiti bidafite akamaro

Guhagarika neza-moderi yimyumvire ya BERT iyo kwemeza F1 ihagarika kuzamuka, ikiza amasaha ya GPU

Umunywanyi wa Kaggle akoresheje inshuro zemewe kugirango ahagarare kare hanyuma ahitemo igenzura hamwe nigihombo gito

Ingaruka & Kurinda

Amakipe atandukanye arashobora gukoresha ijambo rimwe muburyo butandukanye, sobanura intera hakiri kare.

Ibipimo birashobora kugaragara bikomeye mugihe imikorere-yisi-itaringaniye.

Kwirengagiza ubuziranenge bwamakuru na gahunda yo gusuzuma akenshi bitanga ibisubizo byoroshye.

Igishushanyo mbonera

1

Tangira nururimi rusobanutse rwibisubizo ukeneye.

2

Toranya intsinzi imwe hamwe nuburyo bumwe bwo gutsindwa mbere yo kwipimisha.

3

Koresha umuderevu muto hamwe namakuru ahagarariye, ntabwo ari demo yashizweho.

4

Inyandiko aho Guhagarara hakiri kare bifasha nuburyo bworoshye bworoshye nibyiza.

Komeza Ubushakashatsi

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Ibibazo bikunze kubazwa

What is Early Stopping?

Guhagarara hakiri kare ni tekiniki isanzwe ihagarika imyitozo yicyitegererezo mugihe imikorere yamakuru-yemewe yo kwemeza ihagarika gutera imbere. Irinda kubara ubusa no gukwirakwira muburyo bumwe bworoshye.

Ni ikihe kimenyetso guhagarara hakiri kare bikurikirana mbere na mbere kugirango uhitemo igihe cyo guhagarara?

Guhagarara hakiri kare bireba ibipimo bifatika byemewe, kuva gutakaza imyitozo bikomeza kugabanuka nubwo icyitegererezo gikwiye.

Ni ubuhe buryo 'kwihangana' bugenzura?

Kwihangana numubare wibihe byemewe nta terambere mbere yuko imyitozo ihagarara, koroshya urusaku rwo kwemeza umurongo.

Nyuma yo guhagarika hakiri kare imbarutso, ni ubuhe buremere ukwiye kubika?

Urasubizaho igenzura kuva mugihe hamwe namanota meza yo kwemeza, ntabwo arigihe cyanyuma, gishobora kuba cyarenze.

Kuki guhagarara hakiri kare bifatwa nkuburyo busanzwe?

Guhagarika hakiri kare bituma ibiro byegereye intangiriro yabyo, bigira ingaruka zisanzwe ugereranije no kubora.

Ni ubuhe butumwa 'min_delta' bugaragaza?

min_delta ishyiraho uburyo bunini bugomba kuba bunini kugirango usubize kwihangana, wirinde ihindagurika rito risa niterambere ryukuri.