Kwisubiraho
Kwisubiraho kwa Logistic guhanura bishoboka ko ikintu kiri mubyiciro, nka spam cyangwa ntabwo ari spam, mugukata amafaranga aremereye binyuze mumurongo wa S.
Incamake
It matters as the foundational, highly interpretable algorithm for classification.
Kwibira cyane
Nubwo izina ryayo, gusubira inyuma ni uburyo bwo gutondeka, ntabwo aribwo buryo bwo gusubira inyuma. Iharura igiteranyo kiremereye cyibintu byinjijwe, hanyuma ikanyuza ako gaciro binyuze mumikorere ya sigmoid (logistique), igashushanya umubare uwo ariwo wose ushobora kuba hagati ya 0 na 1. Niba bishoboka kurenga imbibi, mubisanzwe 0.5, ingingo yanditseho ibyiza. Icyitegererezo cyiga uburemere bwacyo mugabanya igihombo (cross-entropy), gihana cyane guhanura nabi. Imbaraga nyamukuru nugusobanurwa: buri buremere bukubwira uburyo ikintu gihindura log-odd y'ibisubizo, bityo urashobora kubona ibintu bitera guhanura hejuru cyangwa hasi. Multiclass verisiyo irayagura ukoresheje imikorere ya softmax.
Ubushishozi
Imikorere ya sigmoid, 1 igabanijwe na (1 wongeyeho e kuri z zibi), ihindura amanota umurongo z mubishoboka. Icyitegererezo cyatojwe na gradient descente kugirango igabanye igihombo cya entropiya, ari convex, nuko hariho isi imwe nziza. Ibipimo bifite ibisobanuro bisukuye: buri kimwe ni ihinduka ryibiti kuri buri gice cyibiranga, kandi kubigaragaza bitanga igipimo kidasanzwe impuguke za domaine zishobora gusobanura mu buryo butaziguye.
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.
Igihe kizaza cyo gusubira inyuma
Gusubira inyuma kwa Logistic bihangana kuko birihuta, bisobanutse, kandi shingiro rikomeye ryapimwe moderi ya fancier. Mubice bigengwa nkimari nubuvuzi, ibisobanuro byayo bikomeza gukoreshwa cyane aho umukara-agasanduku kerekana imiterere igenzurwa. Ituye kandi imbere mumiyoboro ya kijyambere igezweho: icyiciro cya nyuma cyo gutondekanya icyiciro hamwe na sigmoid cyangwa softmax mubyukuri ni ugusubira inyuma, kubwibyo rero ni irembo ryo kwiga byimbitse.
Gushyira mu bikorwa Isi
Imeri yoherejwe na imeri: kugereranya ibishoboka ubutumwa ni spam kuva kumagambo no kohereza.
Gutanga inguzanyo: guhanura bishoboka ko usaba inguzanyo atazishyura, hamwe nintererano yuburemere.
Guhanura ibyago byo kwa muganga: kugereranya amahirwe umurwayi afite uburwayi buva kubizamini n'ibimenyetso.
Kwamamaza ibicuruzwa byerekana: guhanura niba umukiriya azahagarika abiyandikisha ukwezi gutaha.
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.
Toranya intsinzi imwe hamwe nuburyo bumwe bwo gutsindwa mbere yo kwipimisha.
Koresha umuderevu muto hamwe namakuru ahagarariye, ntabwo ari demo yashizweho.
Inyandiko aho Logistic Regression ifasha kandi nuburyo bworoshye bworoshye.
Komeza Ubushakashatsi
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Ubuyobozi bukurikira
AI muri Logistique
Ibibazo bikunze kubazwa
What is Logistic Regression?
Kwisubiraho kwa Logistic guhanura bishoboka ko ikintu kiri mubyiciro, nka spam cyangwa ntabwo ari spam, mugukata amafaranga aremereye binyuze mumurongo wa S. Nibyingenzi nkibishingiro, bisobanurwa cyane algorithm yo gutondekanya.
Nubwo izina ryayo, gusubira inyuma kwa logistique bikoreshwa iki?
Gusubira inyuma kwa Logistic bisohora ibishoboka kandi bikoreshwa mugutondekanya ibintu mubyiciro byihariye, nka spam na spam.
Niki imikorere ya sigmoid (logistic) ikora murugero?
Sigmoid ikubita amanota kumurongo kumurongo 0-kuri-1 kugirango ibisohoka bisomwe nkibishoboka.
Nibihe bikorwa byo gutakaza bigabanya gusubira inyuma mugihe cy'amahugurwa?
Gusubira inyuma kwa Logistic gutozwa no kugabanya cross-entropy, ihana cyane ikigereranyo cyizere ariko kibi.
Ni ukubera iki gusubira inyuma bihabwa agaciro kubisobanuro?
Coefficient yize ifite ibisobanuro bisobanutse: buriwese agaragaza impinduka muri log-odd kuri buri gice cyibiranga, akenshi bigaragazwa nkikigereranyo kidasanzwe.
Nigute gusubira inyuma muburyo busanzwe bihindura ibishoboka mubirango byishuri?
Niba bishoboka guhanurwa kurenza urugero (mubisanzwe 0.5), ingingo yanditseho ibyiza; bitabaye ibyo.