Kwemeza
Kwambukiranya imipaka ni tekinike yo gusubiramo uburyo bwo kugereranya uburyo icyitegererezo kizajya kibona amakuru atagaragara.
Incamake
Kwambukiranya imipaka ni tekinike yo gusubiramo uburyo bwo kugereranya uburyo icyitegererezo kizajya kibona amakuru atagaragara. Ikoresha neza amakuru make kandi itanga igereranya ryimikorere yizewe kuruta gari ya moshi imwe / igabana.
Kwambukiranya-Kwicara bicaye mubikoresho bya AI. Iyo ubisobanukiwe, izindi ngingo za AI zoroha gusuzuma no kugereranya.
Kwibira cyane
Gariyamoshi imwe / ikizamini cyo gutandukana biroroshye: amanota ubonye biterwa cyane numurongo wabaye kumurongo wikizamini. Kwambukiranya-gukosora ibi mukuzenguruka uruhare rwibizamini. Muri k-inshuro zinyuranye-zemeza, ugabanya amakuru mubice k bingana, uhugura kuri k-1 yabyo, usuzume kumurongo wafashwe, hanyuma usubiremo k inshuro kuburyo buri murongo ugeragezwa rimwe gusa. Ugereranije amanota k atanga umusaruro ushimishije wongeyeho igipimo cyo guhinduka. Guhitamo bisanzwe ni inshuro 5 cyangwa 10. Ibihinduka birimo ibyiciro k-bikubye (kubika ibipimo byurwego rwimibare idahwitse), gusiga-umwe-hanze (k bingana numubare wintangarugero), hamwe nigihe-cyiciro cyo gutandukana bitigera bitoza ejo hazaza guhanura ibyahise.
Ubushishozi
Kwambukiranya imbaraga birakomeye cyane muburyo bwo gutoranya icyitegererezo no guhuza hyperparameter: ugereranya ibishushanyo ukurikije amanota yabo yo kwemeza aho gukwirakwira. Umutego ukomeye ni ukumenyekanisha amakuru - ikintu icyo ari cyo cyose cyatunganijwe 'kibona' imibare yose (gupima, guhitamo ibiranga, kwishyiriraho ibiciro) igomba kuba ikwiye muri buri bubiko, ntabwo mbere yo gutandukana, cyangwa ikigereranyo cyawe kizaba kibogamye. Nested cross-validation itandukanya guhuza nisuzuma ryanyuma kugirango wirinde kumeneka.
Kumenya Kwambukiranya-Kwemeza
Kugirango wubake byimbitse, fata Cross-Validation nkicyitegererezo gikora, ntabwo ari ikintu kimwe. Sobanura ibyifuzwa, usobanure neza ibitekerezo, kandi utandukanye ibyo sisitemu ishobora gukora byizewe nibisaba guca imanza zinzobere.
Mu myitozo, amakipe akomeye akoresha Cross-Validation yubaka icyitegererezo gikomeye cyambere, hanyuma ushushanye izo moderi kubibuza umusaruro. Bandika ibipimo ngenderwaho byerekana intsinzi, bagerageza kurwanya amakuru afatika hamwe nakazi keza, kandi bagasubiramo bashingiye kubikorwa byagaragaye ko batsinzwe aho gutsinda inshuro imwe. Aha niho imyumvire yubumenyi ihinduka mubushobozi burambye kubicuruzwa, politiki, nibikorwa.
Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza. Igihe kimwe, Amakipe atandukanye arashobora gukoresha ijambo rimwe muburyo butandukanye, sobanura intera hakiri kare. Uburyo bukomeye cyane ni uguhuza umuvuduko wikigereranyo hamwe na disipuline yimiyoborere: kuyobora abaderevu, gufata ibimenyetso, gutangaza ibyemezo byicyemezo, no gukomeza kuvugurura uburyo bwo kwirinda nkimyitwarire yicyitegererezo, ibyo abakoresha bategereje, nibisabwa n'amategeko bigenda bihinduka.
Ingaruka z'Ingamba
Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza.
Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza. Mubikorwa byujuje ubuziranenge, ibi bihindurwa mumategeko agenga imikorere, imipaka nyirubwite, hamwe n'imihango yo gusubiramo kenshi kugirango amakipe ashobore kwigirira ikizere aho gupima ibidasobanutse.
Urashobora kubaza ibibazo byiza byo gushyira mubikorwa mbere yo gukoresha amafaranga cyangwa igihe.
Urashobora kubaza ibibazo byiza byo gushyira mubikorwa mbere yo gukoresha amafaranga cyangwa igihe. Mubikorwa byujuje ubuziranenge, ibi bihindurwa mumategeko agenga imikorere, imipaka nyirubwite, hamwe n'imihango yo gusubiramo kenshi kugirango amakipe ashobore kwigirira ikizere aho gupima ibidasobanutse.
Amakipe asangiye ibitekerezo akora ibicuruzwa byiza, politiki, nibyemezo byo kwiga.
Amakipe asangiye ibitekerezo akora ibicuruzwa byiza, politiki, nibyemezo byo kwiga. Mubikorwa byujuje ubuziranenge, ibi bihindurwa mumategeko agenga imikorere, imipaka nyirubwite, hamwe n'imihango yo gusubiramo kenshi kugirango amakipe ashobore kwigirira ikizere aho gupima ibidasobanutse.
Gushyira mu bikorwa Isi
Gukoresha inshuro 5 kunyuramo kugirango ugereranye gusubira inyuma, ishyamba ridasanzwe, hamwe no kuzamura buhoro buhoro mbere yo kwiyemeza icyitegererezo.
Gushyira mu byiciro k-inshuro ku busumbane bwuburiganya-gutahura dataset kuburyo buri bubiko bugumana hafi kimwe kimwe kidasanzwe-cyiciro.
Gukoresha GridSearchCV cyangwa RandomizedSearchCV, ihuza-ihuza buri hyperparameter ihuza kugirango uhitemo igenamiterere ryiza.
Gukoresha ibihe-bikurikirana (kuzunguruka / imbere-umunyururu) kwambukiranya agaciro kugirango usuzume ikigega cyangwa usabe iteganyagihe nta mahugurwa ku makuru azaza.
Uburyo bwo Gushyira mu bikorwa
Kwambukiranya imipaka mubikorwa
Gukoresha inshuro 5 kunyuramo kugirango ugereranye gusubira inyuma, ishyamba ridasanzwe, hamwe no kuzamura buhoro buhoro mbere yo kwiyemeza icyitegererezo.
Amakipe akunze kubona umusaruro ushimishije mugihe asobanura ibipimo ngenderwaho byimbere imbere, agakomeza inzira yo kuzamura abantu kubibazo byimbere, kandi akurikirana inyungu zibyara umusaruro nibiciro byamakosa mugihe.
Kwambukiranya imipaka mubikorwa
Gushyira mu byiciro k-inshuro ku busumbane bwuburiganya-gutahura dataset kuburyo buri bubiko bugumana hafi kimwe kimwe kidasanzwe-cyiciro.
Amakipe akunze kubona umusaruro ushimishije mugihe asobanura ibipimo ngenderwaho byimbere imbere, agakomeza inzira yo kuzamura abantu kubibazo byimbere, kandi akurikirana inyungu zibyara umusaruro nibiciro byamakosa mugihe.
Kwambukiranya imipaka mubikorwa
Gukoresha GridSearchCV cyangwa RandomizedSearchCV, ihuza-ihuza buri hyperparameter ihuza kugirango uhitemo igenamiterere ryiza.
Amakipe akunze kubona umusaruro ushimishije mugihe asobanura ibipimo ngenderwaho byimbere imbere, agakomeza inzira yo kuzamura abantu kubibazo byimbere, kandi akurikirana inyungu zibyara umusaruro nibiciro byamakosa mugihe.
Kwambukiranya imipaka mubikorwa
Gukoresha ibihe-bikurikirana (kuzunguruka / imbere-umunyururu) kwambukiranya agaciro kugirango usuzume ikigega cyangwa usabe iteganyagihe nta mahugurwa ku makuru azaza.
Amakipe akunze kubona umusaruro ushimishije mugihe asobanura ibipimo ngenderwaho byimbere imbere, agakomeza inzira yo kuzamura abantu kubibazo byimbere, kandi akurikirana inyungu zibyara umusaruro nibiciro byamakosa mugihe.
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
Tangira nururimi rusobanutse rwibisubizo ukeneye.
Fata nk'irembo ryibimenyetso: niba ibipimo bitujujwe, hagarika kuzenguruka, funga icyuho, hanyuma noneho wagure imikoreshereze.
Toranya intsinzi imwe hamwe nuburyo bumwe bwo gutsindwa mbere yo kwipimisha.
Fata nk'irembo ryibimenyetso: niba ibipimo bitujujwe, hagarika kuzenguruka, funga icyuho, hanyuma noneho wagure imikoreshereze.
Koresha umuderevu muto hamwe namakuru ahagarariye, ntabwo ari demo yashizweho.
Fata nk'irembo ryibimenyetso: niba ibipimo bitujujwe, hagarika kuzenguruka, funga icyuho, hanyuma noneho wagure imikoreshereze.
Inyandiko aho Cross-Validation ifasha kandi nuburyo bworoshye bworoshye.
Fata nk'irembo ryibimenyetso: niba ibipimo bitujujwe, hagarika kuzenguruka, funga icyuho, hanyuma noneho wagure imikoreshereze.
Komeza Ubushakashatsi
Check your understanding
Test yourself: take the Cross-Validation quiz