Juyin Juya Hali
Rikicin dabaru yana tsinkayar yuwuwar cewa wani abu ya kasance na aji, kamar spam ko ba spam ba, ta hanyar karkatar da adadi mai nauyi ta hanyar lanƙwasa S-dimbin yawa.
Dubawa
It matters as the foundational, highly interpretable algorithm for classification.
Zurfafa nutsewa
Duk da sunansa, koma bayan dabaru hanya ce ta rarrabuwa, ba ta koma baya ba. Yana ƙididdige jimlar ma'auni na fasalulluka na shigarwa, sannan ya wuce waccan ƙimar ta aikin sigmoid ( dabaru), wanda ke tsara kowane lamba zuwa yuwuwar tsakanin 0 da 1. Idan yuwuwar ta haye kofa, yawanci 0.5, batu yana da alamar tabbatacce. Samfurin yana koyon ma'aunin nauyi ta hanyar rage asarar log (cross-entropy), wanda ke azabtar da tsinkaya mara kyau. Babban ƙarfi shine iya fassarawa: kowane nauyi yana gaya muku yadda fasalin ke canza yanayin sakamakon, don haka zaku iya ganin abubuwan da ke tura hasashen sama ko ƙasa. Siffofin Multiclass suna fadada shi ta amfani da aikin softmax.
Fahimtar Fasaha
Aikin sigmoid, 1 ya raba ta (1 da e zuwa mummunan z), yana juya maƙiyan linzamin z zuwa yuwuwar. An horar da ƙirar ta hanyar zuriyar gradient don rage yawan asarar giciye, wanda ke da ma'ana, don haka akwai mafi kyawun duniya guda ɗaya. Ma'aunin nauyi yana da ma'ana mai tsabta: kowannensu shine canjin log-odds a kowace raka'a na fasalinsa, kuma bayyana shi yana ba da ƙima wanda masana yanki zasu iya fassara kai tsaye.
Dabarun Tasiri
Shawarwari masu haske
Yana taimaka muku keɓance bayyanannen da'awar fasaha daga harshen talla.
Kudin da kasafin kuɗi
Kuna iya yin mafi kyawun tambayoyin aiwatarwa kafin kashe kuɗi ko lokaci.
Ƙungiya da aikin aiki
Ƙungiyoyin da ke da fahimtar juna suna yin mafi kyawun samfura, manufofi, da yanke shawara na koyo.
Makomar Juyin Juya Hali
Komawa dabaru yana dawwama saboda yana da sauri, bayyananne, da tushe mai ƙarfi wanda akan auna ƙirar ƙira. A cikin wuraren da aka tsara kamar kuɗi da likitanci, fassararsa yana kiyaye shi cikin aiki mai ƙarfi inda ƙirar akwatin akwatin ke fuskantar bincike. Hakanan yana rayuwa a cikin hanyoyin sadarwa na zamani: Layer rarrabuwa na ƙarshe tare da sigmoid ko softmax shine ainihin koma bayan dabaru, don haka fahimtar shi ƙofar ce ta zurfin koyo.
Aiwatar da Gaskiyar Duniya
Tace spam ta imel: ƙididdige yiwuwar saƙon saƙon saƙon saƙo ne daga kalma da fasalin mai aikawa.
Ƙimar kiredit: tsinkaya yuwuwar mai neman lamuni zai ɓata, tare da gudummawar nauyi na gaskiya.
Hasashen haɗari na likita: ƙididdige damar majiyyaci yana da cuta daga ƙimar gwaji da alamomi.
Samfuran tallan tallace-tallace: hasashen ko abokin ciniki zai soke biyan kuɗi a wata mai zuwa.
Hatsari & Tsare-tsare
Ƙungiyoyi daban-daban na iya amfani da kalmar iri ɗaya daban, don haka ayyana iyaka da wuri.
Alamomi na iya yin kama da ƙarfi yayin da aikin zahirin duniya bai yi daidai ba.
Yin watsi da ingancin bayanai da tsare-tsaren kimantawa galibi yana haifar da sakamako mara ƙarfi.
Taswirar Hanya
Fara da ma'anar harshe a sarari na sakamakon da kuke buƙata.
Zaɓi ma'aunin nasara ɗaya da yanayin gazawa ɗaya kafin gwaji.
Gudun ƙaramin matukin jirgi tare da bayanan wakilci, ba saitin demo da aka goge ba.
Takaddun bayanai inda Regression Logistic ke taimakawa kuma inda hanyoyin mafi sauƙi suka fi kyau.
Ci gaba da Bincike
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Jagora na gaba
AI a cikin Logistics
Tambayoyin da ake yawan yi
What is Logistic Regression?
Rikicin dabaru yana tsinkayar yuwuwar cewa wani abu ya kasance na aji, kamar spam ko ba spam ba, ta hanyar karkatar da adadi mai nauyi ta hanyar lanƙwasa S-dimbin yawa. Yana da mahimmanci a matsayin tushen tushe, algorithm mai fasara sosai don rarrabuwa.
Duk da sunansa, menene ainihin koma bayan dabaru ake amfani dashi?
Sake mayar da hankali yana fitar da yuwuwar kuma ana amfani da shi don rarraba abubuwa zuwa azuzuwan mabambanta, kamar spam da ba spam ba.
Menene aikin sigmoid (hanyoyi) ke yi a cikin ƙirar?
Sigmoid yana lalata makin layi a cikin kewayon 0-zuwa-1 don haka za'a iya karanta fitarwa azaman yuwuwar.
Wane aikin asara ke rage koma baya na dabaru yayin horo?
An horar da jujjuyawar dabaru ta hanyar rage giciye-entropy, wanda ke ƙunshe da ƙwaƙƙwaran ƙwaƙƙwaran ƙwaƙƙwaran yiwuwar yiwuwar kuskure.
Me yasa ake daraja koma bayan dabaru don fassara?
Ƙididdigar da aka koya suna da ma'ana bayyananne: kowannensu yana nuna canjin log-ra'ayin kowace naúrar fasalinsa, galibi ana bayyana shi azaman rabon rashin daidaituwa.
Ta yaya koma bayan dabaru ke juya yuwuwar zuwa lakabin aji?
Idan yuwuwar da aka annabta ta zarce kofa (yawanci 0.5), ana yiwa ma'anar alamar tabbatacce; in ba haka ba mara kyau.