Imithetho Yokunqunywa Kwezimayini Yenqubo Yokukhiqiza Ingxenye

Emkhakheni wezimayini zedatha, izindlela zokuhlukanisa ezijwayelekile ezisetshenziswayo zifaka phakathi imishini ye-vector yokuxhasa, amanethiwekhi we-neural, ukuhlukaniswa kwe-Bayesian, njll. Ama-algorithms angenhla agxile kakhulu ekusatshalalisweni kwedatha okungajwayelekile, kuncike ekusekelweni kwedatha enkulu, kanye nasezimayini ubudlelwano babo obukhona benhlangano izinyathelo ezifanayo. It is kabanzi emikhakheni efana iphutha ukuxilongwa. Kodwa-ke, embonini yokukhiqiza imishini, ukwakheka kwamapharamitha wezingxenye (njengosayizi, ukunemba, njll.) Sekumisiwe, futhi kubunjiniyela bangempela, ingxenye ngayinye ku-database ihambelana nomzila wenqubo eyodwa kuphela. Ngakho-ke, izinga lokuphindaphindwa kwedatha yenqubo liphakeme kakhulu, futhi inani ledatha lincane, elingakulungele ukucubungulwa kwe-algorithm eshiwo ngenhla. Ngakho-ke, abacwaningi basebenzisa i-rough set theory ukuqondisa izimayini zemithetho yezinqumo zenqubo.

Ngaphambi kwemithetho yesinqumo sezimayini, kufanele siqale siqinisekise ukuthembeka kwemininingwane. Lokhu kungenxa yokuthi kubunjiniyela bangempela, izimo zokusebenza zihlala zishintsha ngesikhathi sangempela. Ukuze kugwenywe inani elincane lemininingwane engajwayelekile ekhiqizwa yizimo zokusebenza ezikhethekile ekuthikamezeni ukuthathwa kwezinqumo, idatha idinga ukubikezelwa kusengaphambili. isibambo. Ngakho-ke, imibhalo ngokuvamile isebenzisa indlela yokubala ukwesekwa nokuzethemba ukuthola idatha yenqubo ejwayelekile.

Ngokuya ngemodeli yesethi enwetshiwe enwetshiwe, ulwazi lokuncamelayo lwenqubo ludayiswa ubudlelwano obuyinkimbinkimbi bokulingana, ukufana, nokuthandwa, okuqinisekisa ukuthi ulwazi lokukhetha inqubo lungahola ngqo ekuthathweni kwezinqumo komklami, futhi inkolelo-mbono ebekiwe ayidingi isixhumanisi senqubo yokulawula ukubonwa kokusebenza, okungcono kunezinye. Indlela yezimayini ilula futhi iqonde ngqo.

Imiphumela emibi yokusetha imayini ifaka phakathi imithetho yokunquma etholwe kusethi yokulinganisa engezansi nendawo engemihle, kanye nemithetho engaqinisekile yendawo yemingcele. Ukuze umayini ngokugcwele ngokwengeziwe imithetho yenqubo yendawo yomngcele, uZhang Z. et al. kusetshenziswe imodeli yokusetha enembile eguquguqukayo ukudlulisa ukunemba Ngemuva kwezinguquko kwinqubo yezimayini, ububanzi besethi yokulinganisa engenhla yehliswa ngempumelelo. Ulwazi lwekhwalithi ludwetshwe ebudlelwaneni benhlangano ukwakha imodeli yokuhlanganiswa kolwazi, engakhipha ngempumelelo imithetho eminingi yesinqumo.

Inqubo esemqoka yokubonisana okunesisekelo esibi ukuthola ukunciphisa ubuncane bezimpawu. UChen Hao et al. ihlaziye ukwehla kokudalwa okubangelwe yisikhathi sokufakwa kanye nesifunda esihle. Ngemodeli yokusetha enembile eguquguqukayo enezinga lokuhlukaniswa okungaguquguquki nesizinda esivumayo njalo, i-Matrix ye-Matrix esekwe kokuqukethwe nomgogodla wemfanelo ukuthola indlela encishisiwe yokunciphisa imfanelo. Usebenzisa i-algorithm yokwehliswa kwe-heuristic, qala ngokuthola imfanelo esemqoka, bese ubale ukuncika kwemfanelo. Ngokwe-oda elikhuphukayo lokuncika, imfanelo nemfanelo ye-kernel zihlanganisiwe ngokulandelana, futhi ekugcineni zithole ukuncishiswa kwemfanelo okuncane, cabanga
I-inhomogeneity yokusatshalaliswa kwesampula iyathuthukiswa ngesisekelo sesethi yomakhelwane, futhi imodeli esethiwe yomakhelwane eseduze ne-K ihlongozwa, esusa ngempumelelo inani elikhulu lezimpawu. Izimayini zomthetho wesinqumo zihlukaniswe kakhulu ngezinhlobo ezimbili, enye imayini yezimbiwa futhi enye iyadonswa. Indlela yezimayini. Umqondo oyinhloko wokumbiwa phansi kwezimayini ukufingqa imithetho enengqondo yokwenza izinqumo kumasethi wedatha anzima. Lapho okuqondiwe kutholakala, fanisa izimfanelo ezinemibandela zomthetho osethwe ngokuya ngamapharamitha wemfanelo yalitshe, ukuze kukhishwe imithetho yokwenza izinqumo ehlangabezana nezidingo ezifanayo. Umqondo oyinhloko wokumbiwa phansi kwezimayini ukwehlukanisa okuqukethwe kwesinqumo kube inhlanganisela yama-subsets amaningana ezinqumo, bese usebenzisa idatha ebekiwe ukukhulula ububanzi bokusetshenziswa kwama-subsets ezinqumo. Lapho ilitshe litholakala, ngokuya ngenhloso
Ipharamitha yemfanelo ekhonjiwe ikhipha isethi engezansi yokwenza izinqumo, iphinde iyihlele kabusha ibe okuqukethwe okudingekayo kokwenza izinqumo. Ngokuphambene nalokho, imithetho yezinqumo yezimayini ezingenamkhawulo ihluke kakhulu futhi inesilinganiso esibanzi sokusetshenziswa, futhi izimayini ezithintekayo zinezingqinamba ezinzima, ezingaqinisekisa ukuthembeka kwemithetho.

Emibhalweni eshiwo ngenhla, izindlela eziningi zokucubungula ziyimayini efaka amandla. Yize ukuthembeka kwemithetho yesinqumo kuqinisekiswe ngempumelelo, umkhawulo oqinile uholela ekusetshenzisweni okuphansi kwemininingwane futhi kunciphisa ukuphelela kwesisekelo semithetho yesinqumo. Ngaphezu kwalokho, yize isethi yokuguquguquka okunemba okuguquguqukayo inganciphisa ngempumelelo indawo yemingcele, inani lokunemba lisethwe kakhulu ngokuhlangenwe nakho okwenziwe ngezandla, futhi izinto eziningi kakhulu zabantu zizonciphisa ukuthembeka komthetho wesinqumo. Ngakho-ke, ukuthi unganciphisa kanjani indawo yemingcele futhi uthuthukise ukuguquguquka kwemithetho ngesisekelo sokuqinisekisa ukuthembeka kwemithetho yokwenza izinqumo yiyona ndlela ehamba phambili yocwaningo yemithetho yokwenza izinqubo zezimayini.

Xhumanisa nale ndatshana: Imithetho Yokunqunywa Kwezimayini Yenqubo Yokukhiqiza Ingxenye

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