Uhlolojikelele
Ukunemba nokukhumbula amamethrikhi amabili ahambisanayo okuhlola abahlukanisi bezigaba, ikakhulukazi uma amakilasi engalingani. Ndawonye baveza lokho ukunemba okusobala okufihlayo - ukuthi izibikezelo ezinhle zemodeli zilungile kaningi kangakanani, nokuthi zingaki izinto ezinhle zangempela ezibambayo.
Ukunemba kanye Nokukhumbula kuhlezi kukhithi yamathuluzi eyinhloko ye-AI. Uma uyiqonda, ezinye izihloko ze-AI ziba lula ukuzihlola nokuqhathanisa.
I-Deep Dive
Uma imodeli ihlaba umkhosi izinto njengezinhle, imibuzo emibili ibalulekile. I-Precision iyabuza: kukho konke esikuhlabe umkhosi, kungakanani okuhle ngempela? Ilingana nokuhle kweqiniso okuhlukaniswe yizo zonke izinto ezibikezelwe, okujezisa ama-alamu angamanga. Khumbula (ukuzwela) uyabuza: kuzo zonke izinto ezinhle zangempela ezikhona, zingaki esizibambe? Ilingana namaphozithivu eqiniso ahlukaniswe yiwo wonke amaphuzu angempela, ukugeja okujezisayo. Lokhu kuvame ukuhwebelana: ukwehlisa umkhawulo wesinqumo kubamba okuhle kakhulu (ukukhumbula okuphezulu) kodwa kuhlaba umkhosi kakhulu (ukunemba okuphansi), futhi okuphambene nalokho. Okufanele ubeke phambili kuncike ezindlekweni - isihlungi sogaxekile sithanda ukunemba (ungalahli kudoti imeyili yangempela), kuyilapho isikrini somdlavuza sithanda ukukhumbula (ungaphuthelwa isimila). Isikolo se-F1, incazelo yabo ye-harmonic, ibhalansi kokubili enombolweni eyodwa.
I-Technical Insight
Womabili amamethrikhi avela kokuphozithiyo kweqiniso kwe-matrix okudidekayo, okuphozithizelayo okungamanga (FP), namanethikhi angamanga (FN): Precision = TP / (TP + FP), Khumbula = TP / (TP + FN). Ngokuphawulekayo, akekho noyedwa osebenzisa ama-negative wangempela, yingakho ehlala enolwazi lapho ama-negative edlula kakhulu ama-positive. Ukushanela umkhawulo wokuhlukanisa ulandelela ijika lokukhumbula ngokunemba; indawo engaphansi kwayo (ukunemba okumaphakathi) ifingqa ukusebenza futhi ikhethwa kune-ROC-AUC kudatha engalingani kakhulu.
I-Mastering Precision and Recall
Ukunemba nokukhumbula amamethrikhi amabili ahambisanayo okuhlola abahlukanisi bezigaba, ikakhulukazi uma amakilasi engalingani. Ndawonye baveza lokho ukunemba okusobala okufihlayo - ukuthi izibikezelo ezinhle zemodeli zilungile kaningi kangakanani, nokuthi zingaki izinto ezinhle zangempela ezibambayo. Ukunemba kanye Nokukhumbula kuhlezi kukhithi yamathuluzi eyinhloko ye-AI. Uma uyiqonda, ezinye izihloko ze-AI ziba lula ukuzihlola nokuqhathanisa. Ukuze wakhe ukuqonda okujulile, phatha i-Precision and Recall njengemodeli yokusebenza, hhayi isici esisodwa: chaza imiphumela efiselekayo, ucacise ukucabanga, futhi uhlukanise lokho isistimu engakwenza ngokwethembeka kulokho okusadinga ukwahlulela kochwepheshe.
Empeleni, amaqembu aqinile asebenzisa i-Precision ne-Recall akha amamodeli aqinile emicabango kuqala, bese ebeka imephu lawo mamodeli emikhawulweni yokukhiqiza yangempela. Babhala imibandela yempumelelo ecacile, ukuhlola okuqhathaniswa nedatha engokoqobo nokugeleza komsebenzi, futhi baphindaphinde ngokusekelwe kumaphethini okuhluleka aqashiwe esikhundleni sokuwina kwebhentshimakhi yesikhathi esisodwa. Yilapho ukuqonda kwethiyori kuguquka kube amandla ahlala njalo kuwo wonke umkhiqizo, inqubomgomo, kanye nokusebenza.
Kukusiza ukuthi uhlukanise izimangalo ezicacile zobuchwepheshe kusukela olimini lokumaketha. Ngesikhathi esifanayo, amaqembu ahlukene angasebenzisa igama elifanayo ngokuhlukile, ngakho chaza ububanzi kusenesikhathi. Indlela eqine kakhulu iwukuhlanganisa isivinini sokuhlola nesiyalo sokuphatha: qhuba abashayeli bezindiza, bamba ubufakazi, ushicilele amalogi ezinqumo, futhi ubuyekeze izivikelo ngokuqhubekayo njengoba imodeli yokuziphatha, okulindelwe ngabasebenzisi, kanye nezimfuneko zokulawula zishintsha.
I-Strategic Impact
Kukusiza ukuthi uhlukanise izimangalo ezicacile zobuchwepheshe kusukela olimini lokumaketha.
Kukusiza ukuthi uhlukanise izimangalo ezicacile zobuchwepheshe kusukela olimini lokumaketha. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Ungabuza imibuzo yokusebenzisa kangcono ngaphambi kokusebenzisa imali noma isikhathi.
Ungabuza imibuzo yokusebenzisa kangcono ngaphambi kokusebenzisa imali noma isikhathi. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Amaqembu anokuqonda okwabiwe enza izinqumo ezingcono zomkhiqizo, inqubomgomo, nokufunda.
Amaqembu anokuqonda okwabiwe enza izinqumo ezingcono zomkhiqizo, inqubomgomo, nokufunda. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Ukuqaliswa Komhlaba Wangempela
Izihlungi zogaxekile ziculela ukunemba okuphezulu ngakho-ke ama-imeyili asemthethweni cishe awalokothi athunyelwe ngephutha kufolda yogaxekile.
Ukuhlolwa kokuhlolwa kwezokwelapha kubeka phambili ukukhumbula okukhulu ukuze kugwenywe iziguli ezilahlekile empeleni ezinalesi sifo, zamukele izimpawu ezingamanga ezengeziwe ukuze zilandelelwe.
Amasistimu okusesha nezincomo abika precision@k (mingaki imiphumela engu-k ephezulu efanelekile) ukukala ikhwalithi yezinga.
Ukutholwa kokukhwabanisa kulinganisa ukunemba nokukhumbula ngesikolo se-F1, njengoba womabili ama-alamu angamanga nokukhwabanisa okugejiwe kuyabiza.
Amaphethini Okusebenzisa
Ukunemba nokukhumbula ngokusebenza
Izihlungi zogaxekile ziculela ukunemba okuphezulu ngakho-ke ama-imeyili asemthethweni cishe awalokothi athunyelwe ngephutha kufolda yogaxekile.
Izihlungi zogaxekile ziculela ukunemba okuphezulu ukuze ama-imeyili asemthethweni angalokothi athunyelwe ngephutha kufolda yogaxekile Amaqembu ngokuvamile athola imiphumela engcono lapho echaza izinga eliphezulu ngaphambili, egcina indlela yokukhuphuka yomuntu yamacala abucayi, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukunemba nokukhumbula ngokusebenza
Ukuhlolwa kokuhlolwa kwezokwelapha kubeka phambili ukukhumbula okukhulu ukuze kugwenywe iziguli ezilahlekile empeleni ezinalesi sifo, zamukele izimpawu ezingamanga ezengeziwe ukuze zilandelelwe.
Ukuhlolwa kokuhlolwa kwezokwelapha kubeka phambili ukukhumbula okukhulu ukuze kugwenywe iziguli ezilahlekile empeleni ezinaso lesi sifo, ukwamukela imibono engamanga eyengeziwe yamaQembu alandelayo ngokuvamile athola imiphumela engcono lapho echaza izinga eliphezulu ngaphambili, egcina indlela yokukhuphuka komuntu ezimweni ezibucayi, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukunemba nokukhumbula ngokusebenza
Amasistimu okusesha nezincomo abika precision@k (mingaki imiphumela engu-k ephezulu efanelekile) ukukala ikhwalithi yezinga.
Amasistimu okusesha nezincomo abika precision@k (mingaki imiphumela ephezulu engu-k efanelekile) ukukala izinga lezinga Amaqembu ngokuvamile athola imiphumela engcono uma echaza izinga eliphezulu ngaphambili, egcina indlela yokukhuphuka yabantu yamakesi asemaphethelweni, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukunemba nokukhumbula ngokusebenza
Ukutholwa kokukhwabanisa kulinganisa ukunemba nokukhumbula ngesikolo se-F1, njengoba womabili ama-alamu angamanga nokukhwabanisa okugejiwe kuyabiza.
Ukutholwa kokukhwabanisa kulinganisa ukunemba nokukhumbula ngesikolo se-F1, njengoba kokubili ama-alamu angamanga nokukhwabanisa okugejiwe kuyindleko Enkulu Amathimba ngokuvamile athola imiphumela engcono uma echaza izilinganiso zekhwalithi ngaphambili, agcina indlela yokukhuphuka komuntu yezimo ezibucayi, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Izingozi & Guardrails
Amaqembu ahlukene angasebenzisa igama elifanayo ngokuhlukile, ngakho chaza ububanzi kusenesikhathi.
Amabhentshimakhi angabukeka eqinile kuyilapho ukusebenza komhlaba wangempela kungalingani.
Ukuziba ikhwalithi yedatha nezinhlelo zokuhlaziya kuvame ukudala imiphumela entekenteke.
Ukuqalisa Umhlahlandlela
Qala ngencazelo yolimi olulula yomphumela oyidingayo.
Qala ngencazelo yolimi olulula yomphumela oyidingayo. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Khetha imethrikhi eyodwa yempumelelo nesimo esisodwa sokuhluleka ngaphambi kokuhlolwa.
Khetha imethrikhi eyodwa yempumelelo nesimo esisodwa sokuhluleka ngaphambi kokuhlolwa. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Qalisa umshayeli omncane onedatha emele, hhayi isethi yedemo ephucuziwe.
Qalisa umshayeli omncane onedatha emele, hhayi isethi yedemo ephucuziwe. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Idokhumenti lapho Ukunemba Nokukhumbula kusiza nalapho izindlela ezilula zingcono khona.
Idokhumenti lapho Ukunemba Nokukhumbula kusiza nalapho izindlela ezilula zingcono khona. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.