Uhlolojikelele
Ukutholwa kwemodeli yokukhukhuleka kuwumkhuba wokuqapha imodeli yokufunda yomshini esetshenzisiwe ukuze ubambe lapho ukunemba kwayo kwehla buthule ngoba umhlaba wangempela ushintshile. Kubalulekile ngoba imodeli eqeqeshwe ngedatha yayizolo ingenza izibikezelo ezingalungile ngokuzethemba kokwanamuhla, ngaphandle komlayezo wephutha wokukuxwayisa.
I-Model Drift Detection iyibhulokhi yokwakha yobuchwepheshe ethinta ikhwalithi yemodeli, izindleko zengqalasizinda, ukubambezeleka, nokuthembeka esikalini.
I-Deep Dive
Uma imodeli isikhiqizwa, idatha yayo yokuqeqeshwa iba yiqhwa esikhathini esidlule ngenkathi umhlaba ulokhu uhamba. Amawashi okuthola i-Drift ngezinkinga ezimbili ezinkulu. I-data drift (noma i-covariate shift) yilapho okokufaka kushintsha khona - imodeli yokukhwabanisa ibona amaphethini amasha okwenziwayo, noma imodeli yombono ithola izithombe ekhamera entsha. I-Concept drift yilapho ubudlelwano phakathi kokufaka kanye nempendulo efanele kushintsha - lokho okubalwe njengogaxekile ngo-2020 kubukeka kuhlukile manje. Amaqembu athola lokhu ngokuqhathanisa ukusabalalisa kwezibalo okokufaka nokubikezela kwakamuva ngokumelene newindi lesithenjwa kusukela ekuqeqeshweni, kusetshenziswa izivivinyo ezifana ne-Population Stability Index (PSI), i-Kolmogorov-Smirnov, noma ukuhlukana kwe-KL. Ngokudabukisayo, i-drift ivama ukuvela kokufakwayo kudala ngaphambi kokufika kwamalebula eqiniso eliphansi, okunikeza isexwayiso kusenesikhathi.
I-Technical Insight
Ihhashi elijwayelekile yi-Population Stability Index. Uhlanganisa isici sibe ububanzi, ubale iphesenti lamarekhodi kumgqomo ngamunye ukuze uthole isethi yokuqeqeshwa uqhathanisa nesethi ebukhoma, kanye nesamba (bukhoma% − isitimela%) × ln(bukhoma% ÷ isitimela%) kuyo yonke imigqomo. Amanani angaphansi kuka-0.1 asho ukuzinza, 0.1–0.25 ukushintsha okumaphakathi, nangaphezulu kuka-0.25 ukukhukhuleka okubalulekile okufanele kuphenywe. Ngokuqhathanisa ukusatshalaliswa okuphelele, ukuhlolwa kwe-Kolmogorov-Smirnov kulinganisa igebe elikhulu phakathi kokusabalalisa okubili okuqoqekile.
I-Mastering Model Drift Detection
Ukutholwa kwemodeli yokukhukhuleka kuwumkhuba wokuqapha imodeli yokufunda yomshini esetshenzisiwe ukuze ubambe lapho ukunemba kwayo kwehla buthule ngoba umhlaba wangempela ushintshile. Kubalulekile ngoba imodeli eqeqeshwe ngedatha yayizolo ingenza izibikezelo ezingalungile ngokuzethemba kokwanamuhla, ngaphandle komlayezo wephutha wokukuxwayisa. I-Model Drift Detection iyibhulokhi yokwakha yobuchwepheshe ethinta ikhwalithi yemodeli, izindleko zengqalasizinda, ukubambezeleka, nokuthembeka esikalini. Ukuze wakhe ukuqonda okujulile, phatha i-Model Drift Detection njengemodeli yokusebenza, hhayi isici esisodwa: chaza imiphumela oyifunayo, ucacise ukucabanga, futhi uhlukanise lokho isistimu engakwenza ngokwethembeka kulokho okusadinga ukwahlulela kochwepheshe.
Empeleni, amaqembu aqinile asebenzisa i-Model Drift Detection athuthukisa ukwakheka, idatha, nokukhetha kwengqalasizinda ngokumelene nokuthembeka nezindleko. 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.
Izinqumo zezakhiwo ziqhuba ukusebenza kanye nezindleko zokusebenza iminyaka. Ngesikhathi esifanayo, Ukuthuthukisa ibhentshimakhi eyodwa kungafihla ubuthakathaka obubanzi besistimu. 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
Izinqumo zezakhiwo ziqhuba ukusebenza kanye nezindleko zokusebenza iminyaka.
Izinqumo zezakhiwo ziqhuba ukusebenza kanye nezindleko zokusebenza iminyaka. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Imfundo yobuchwepheshe isiza amaqembu ukuthi akhethe isitaki esifanele, hhayi nje esisha.
Imfundo yobuchwepheshe isiza amaqembu ukuthi akhethe isitaki esifanele, hhayi nje esisha. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Izinketho ezingcono zobunjiniyela zinciphisa izehlakalo ezinokwethenjelwa ekukhiqizeni.
Izinketho ezingcono zobunjiniyela zinciphisa izehlakalo ezinokwethenjelwa ekukhiqizeni. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Ukuqaliswa Komhlaba Wangempela
Imodeli yebhange lokuthola amaphuzu esikweletu imaka i-PSI ekhuphukayo ezicini zemali engenayo ngemva kokuba ukwehla komnotho kushintsha izibalo zabantu abafake isicelo, okudala ukuqeqeshwa kabusha ngaphambi kokuthi ukugunyazwa kungahambi kahle.
Imodeli yokubikezela isidingo somthengisi ithola umqondo ukukhukhuleka lapho umkhiqizo wegciwane uphula amaphethini omlando wesizini.
Isigaba sokulinganisa okuqukethwe sibamba idatha ngokukhukhuleka njengoba kuvela isitsotsi kanye namaqhinga amasha okuhlukumeza, okucupha ukubuyekezwa kwelebula.
Imodeli yokunakekela okubikezelwayo kuzinzwa zasembonini ibona ukukhukhuleka kokufaka ngemva kokuthuthukiswa kwesisetshenziswa kushintsha amasignesha okudlidliza.
Amaphethini Okusebenzisa
I-Model Drift Detection in practice
Imodeli yebhange lokuthola amaphuzu esikweletu imaka i-PSI ekhuphukayo ezicini zemali engenayo ngemva kokuba ukwehla komnotho kushintsha izibalo zabantu abafake isicelo, okudala ukuqeqeshwa kabusha ngaphambi kokuthi ukugunyazwa kungahambi kahle.
Imodeli yebhange lokuthola amaphuzu esikweletu iphakamisa i-PSI ezicini zemali engenayo ngemva kokuwohloka komnotho kushintsha isibalo sabantu abafake izicelo, okudala ukuqeqeshwa kabusha ngaphambi kokuthi ukugunyazwa kuhambe kabi Amaqembu ngokuvamile athola imiphumela engcono lapho echaza izilinganiso zekhwalithi ngaphambili, agcine indlela yokukhuphuka kwabantu yamacala aphambili, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
I-Model Drift Detection in practice
Imodeli yokubikezela isidingo somthengisi ithola umqondo ukukhukhuleka lapho umkhiqizo wegciwane uphula amaphethini omlando wesizini.
Imodeli yokubikezela isidingo somthengisi ithola ukuntengantenga lapho umkhiqizo wegciwane uphula amaphethini omlando wesizini Amaqembu ngokuvamile athola imiphumela engcono uma echaza izilinganiso zekhwalithi ngaphambili, agcina indlela yokukhuphuka kwabantu yamakesi asemaphethelweni, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
I-Model Drift Detection in practice
Isigaba sokulinganisa okuqukethwe sibamba idatha ngokukhukhuleka njengoba kuvela isitsotsi kanye namaqhinga amasha okuhlukumeza, okucupha ukubuyekezwa kwelebula.
Isihlukanisi sokulinganisa okuqukethwe sibamba idatha ekukhuphukeni njengoba kuvela amaqhinga kanye namaqhinga amasha okuhlukumeza, okubangela ukubuyekezwa kwelebula Amaqembu ngokuvamile athola imiphumela engcono uma echaza izilinganiso zekhwalithi ngaphambili, egcina indlela yokukhuphuka yabantu ezimweni ezibucayi, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
I-Model Drift Detection in practice
Imodeli yokunakekela okubikezelwayo kuzinzwa zasembonini ibona ukukhukhuleka kokufaka ngemva kokuthuthukiswa kwesisetshenziswa kushintsha amasignesha okudlidliza.
Imodeli yokunakekela okubikezelwayo kuzinzwa zasembonini ibona ukukhukhuleka kokufaka ngemva kokuthuthukiswa koshintsho lwemishini amasiginesha okudlidliza Amaqembu ngokuvamile athola imiphumela engcono uma echaza izilinganiso zekhwalithi ngaphambili, egcina indlela yokukhuphuka yomuntu yamakesi asemaphethelweni, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Izingozi & Guardrails
Ukuthuthukisa ibhentshimakhi eyodwa kungafihla ubuthakathaka obubanzi besistimu.
Izindleko zengqalasizinda nezokulungisa zivame ukubukelwa phansi.
Izikhala zokuphepha nokubonakala zingakhula njengoba izinhlelo ziba nzima kakhulu.
Ukuqalisa Umhlahlandlela
Chaza ukubambezeleka, ikhwalithi, nezindleko ezihlosiwe ngaphambi kokuqaliswa.
Chaza ukubambezeleka, ikhwalithi, nezindleko ezihlosiwe ngaphambi kokuqaliswa. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Ibhentshimakhi ngaphansi komthwalo wangempela nezimo zedatha.
Ibhentshimakhi ngaphansi komthwalo wangempela nezimo zedatha. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Ukuqapha amathuluzi amaphutha, ukukhukhuleka, nomthelela wabasebenzisi.
Ukuqapha amathuluzi amaphutha, ukukhukhuleka, nomthelela wabasebenzisi. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Lungiselela izindlela zokuhlehlisa nezigameko ngaphambi kokukala.
Lungiselela izindlela zokuhlehlisa nezigameko ngaphambi kokukala. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.