Ubunjiniyela besici
Ubunjiniyela besici kuwubuciko bokuguqula idatha eluhlaza ibe okokufaka okufundisayo (izici) ezisiza imodeli ukuthi ifunde.
Uhlolojikelele
In classic machine learning it is often the single biggest driver of accuracy, more than the choice of algorithm.
I-Deep Dive
Imodeli ingafunda kuphela kokokufaka okunikezayo, futhi idatha eluhlaza ayivamisile ukufika isesimweni esiwusizo. Isici sonjiniyela siyasibumba kabusha: ukukhipha usuku lweviki kusitembu sesikhathi, kufakwa ikhompuyutha yokuthenga okumaphakathi kwekhasimende, izigaba zombhalo wekhodi njengezinombolo, amanani okukala aye kububanzi obujwayelekile, noma ukuhlanganisa amakholomu abe izilinganiso. Kwenziwe kahle, kuveza amaphethini adingwa yi-algorithm, ngakho-ke imodeli elula ezicini ezinhle ivamise ukuhlula imodeli eyinkimbinkimbi kudatha eluhlaza. Kudinga nolwazi lwesizinda, njengoba ukwazi ukuthi, yithi, 'imisebenzi ngomzuzu' ikhombisa ukukhwabanisa yikho okudala isici esinamandla. Ingozi yakudala iwukuvuza kwedatha, ngephutha ukwakha isici esivela olwazini obelungeke lutholakale ngesikhathi sokubikezela, esikhulisa imiphumela yokuhlolwa kodwa sihluleke ekukhiqizeni. Ukufunda okujulile kwenza okunye kwalokhu, kodwa izinkinga ezihlelekile/zethebula zisancike kakhulu kukho.
I-Technical Insight
Amasu avamile ahlanganisa ukwenza kube okujwayelekile noma ukumisa (izinombolo zokukala ukuze kungabikho isici esisodwa esibusayo), umbhalo wekhodi oshisayo noma oqondiwe wokuhlukahluka kwesigaba, amanani aqhubekayo okuhlanganisa, nokudala ukusebenzisana noma izici ezihlanganisiwe. Isiyalo esibucayi siwushintsho olufanelekile (njengencazelo yesikali kanye nokuchezuka okujwayelekile) kuphela kudatha yokuqeqeshwa, bese siyisebenzisa ekuqinisekiseni namasethi okuhlola. Ukuzihlanganisa kudathasethi egcwele ulwazi oluvuzayo futhi kukhiqiza imiphumela enethemba ngokweqile engeke iqhubeke ukusetshenziswa.
I-Strategic Impact
Izinqumo ezicacile
Kukusiza ukuthi uhlukanise izimangalo ezicacile zobuchwepheshe kusukela olimini lokumaketha.
Izindleko kanye nesabelomali
Ungabuza imibuzo yokusebenzisa kangcono ngaphambi kokusebenzisa imali noma isikhathi.
Ithimba kanye nokusebenza komsebenzi
Amaqembu anokuqonda okwabiwe enza izinqumo ezingcono zomkhiqizo, inqubomgomo, nokufunda.
Ikusasa Lobunjiniyela Besici
Ukufunda okujulile kunokukhishwa okuzenzakalelayo kwesici sezithombe, umsindo, nombhalo, lapho amanethiwekhi afunda khona izethulo ngokuqondile kokufakwayo okungavuthiwe. Kodwa ngedatha yethebula nebhizinisi, okuyidatha yebhizinisi eminingi, ubunjiniyela besici esicatshangelwayo buhlala bunquma. Inkambu ishintshela ku-automation (i-AutoML, isizukulwane sesici esizenzakalelayo) kanye 'nezitolo zesici' ezisebenziseka kabusha ezivumela amaqembu ukuthi abelane ngezici ezingaguquki, ezihlolwe kahle kuwo wonke amamodeli. Lindela amathuluzi amaningi aphakamisa izici nokuvikela ekuvuzeni, kuyilapho ubuchwepheshe besizinda somuntu buhlala bubalulekile ezicini zenani eliphezulu.
Ukuqaliswa Komhlaba Wangempela
Ukutholwa kokukhwabanisa: izici ezitholakalayo njengemvamisa yokwenziwe, isikhathi kusukela ekuthengeni kokugcina, nebanga ukusuka endaweni evamile.
Isibikezelo sesidingo: ukukhipha usuku lweviki, amafulegi amaholide, kanye nezilinganiso eziphumayo ezitembuni zesikhathi zokuthengisa ezingavuthiwe.
Amaphuzu esikweletu: ukuguqula umlando ongahluziwe ube izilinganiso ezifana nesikweletu nemali engenayo kanye nezibalo zezinkokhelo zakamuva zakamuva.
I-churn yekhasimende: umsebenzi wokuhlanganisa ube izici ezifana nokungena ngenyanga nezinsuku kusukela ekuhlanganyeleni kokugcina.
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.
Khetha imethrikhi eyodwa yempumelelo nesimo esisodwa sokuhluleka ngaphambi kokuhlolwa.
Qalisa umshayeli omncane onedatha emele, hhayi isethi yedemo ephucuziwe.
Idokhumenti lapho Ubunjiniyela Besici busiza khona nalapho izindlela ezilula zingcono khona.
Qhubeka Uhlole
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Umhlahlandlela olandelayo
Faka Amapayipi Obunjiniyela kanye Nokuguqulwa Kwedatha
Imibuzo evame ukubuzwa
What is Feature Engineering?
Ubunjiniyela besici kuwubuciko bokuguqula idatha eluhlaza ibe okokufaka okufundisayo (izici) ezisiza imodeli ukuthi ifunde. Ekufundeni komshini kwakudala kuvamise ukuba umshayeli oyedwa omkhulu wokunemba, ngaphezu kokukhethwa kwe-algorithm.
Buyini ubunjiniyela besici?
Ubunjiniyela besici bumayelana nokwenza okokufaka (izici) kusuka kudatha eluhlaza ukuze imodeli ithole amaphethini awusizo.
Kungani ubunjiniyela besici buvame ukuchazwa njengobubalulekile ekufundeni komshini kwakudala?
Kudatha ehlelekile, izici eziklanywe kahle zivame ukubaluleka ngaphezu kwemodeli ethile, ngakho imodeli elula enezici ezinhle ingawina.
Kuyini ukuvuza kwedatha kubunjiniyela besici?
Ukuvuza kusho isici esingena ngokunyenya olwazini obungeke ube nalo uma ubikezela, ukhuphula imiphumela yokuhlolwa kodwa wehluleke ekukhiqizeni.
Lapho ukala izici (isb., ukumiswa), kufanele ubale kuphi ukuchezuka kwencazelo nokujwayelekile?
Ukufaka isikali kudatha yokuqeqeshwa kuphela, bese siyisebenzisa kwenye indawo, kuvimbela ukuvuza futhi kunikeza izilinganiso zokusebenza ezingokoqobo.
Iyiphi kulokhu okuyindlela evamile yobunjiniyela bedatha yesigaba?
Okuguquguqukayo kwezigaba kuvamise ukuguqulwa kube izinombolo ngokushisa okukodwa noma umbhalo wekhodi oqondiwe ukuze amamodeli akwazi ukuzisebenzisa.