Ukutholwa Kwezindlela Zokuhlanganisa
Emhlabeni oguquguqukayo wesayensi yedatha, izindlela zokuhlanganisa zizenzele njengamathuluzi abalulekile ochwepheshe abafuna ukuthuthukisa ukunemba kwamamodeli aqagelayo. Sizohlola izisekelo zalezi zindlela ezivumela ukuhlaziya okujulile nokucashile kwedatha.
Izindlela zokuhlanganisa, ezifana ne-Bagging noma i-Boosting, zinikeza indlela yokuhlanganyela lapho amamodeli wokufunda womshini amaningana asebenza ndawonye ukuze anikeze izibikezelo ezinembe kakhulu kunalezo ezitholwe imodeli eyodwa. Lokhu kusebenzisana akuthuthukisi ukunemba nje kuphela, kodwa futhi kunciphisa ingozi yokufakwa ngokweqile, umgodi ovamile emkhakheni wokumodela idatha.
Njengoba ucwilisa kulokhu kuqeqeshwa, uzoqondiswa emicabangweni ebalulekile ngemuva kwalezi zindlela, ezikulungiselela ukuthi uzihlanganise ngobuchule kumaphrojekthi akho esayensi yedatha yesikhathi esizayo. Noma ngabe ungumuntu osaqalayo ofuna ukusungula isisekelo esiqinile noma uchwepheshe onolwazi ofuna ukuthuthukisa amakhono akho, lokhu kuqeqeshwa kukunikeza isingeniso esiphelele nesijulile emhlabeni wezindlela zokuhlanganisa.
Ukusebenza kwe-Bagging kanye ne-Boosting
I-Bagging kanye ne-Boosting izindlela ezimbili zokuhlanganisa eziguqule indlela ochwepheshe abasondela ngayo ekumodeleni okubikezelwayo. I-Bagging, noma i-Bootstrap Aggregating, ihlanganisa ukuhlanganisa imiphumela yamamodeli ambalwa ukuze uthole isibikezelo esizinzile nesiqine kakhudlwana. Lolu hlelo lokusebenza lusebenza kahle kakhulu ekwehliseni ukuhlukahluka nokugwema ukufakwa ngokweqile.
Ngakolunye uhlangothi, i-Boosting igxile ekulungiseni amaphutha enziwe amamodeli wangaphambilini. Ngokunikeza isisindo esiphezulu ekubonweni okungahlukaniswanga kahle, i-Boosting ithuthukisa kancane kancane ukusebenza kwemodeli. Le ndlela inamandla okwandisa ukunemba nokunciphisa ukuchema.
Ukuhlola lawa masu kuveza amandla azo okuguqula indlela idatha ehlaziywa futhi ihunyushwe ngayo. Ngokuhlanganisa i-Bagging kanye ne-Boosting ekuhlaziyeni kwakho, uzokwazi ukuthola iziphetho ezinembe kakhudlwana futhi wandise amamodeli akho aqagelayo.
Izihlahla okungahleliwe, emisha enkulu
Izihlahla ezingahleliwe, noma Amahlathi Angahleliwe, amelela intuthuko ebalulekile emkhakheni wezindlela zokuhlanganisa. Bahlanganisa izihlahla zezinqumo eziningi ukuze bakhe imodeli esebenza kahle futhi eqinile. Isihlahla ngasinye sakhiwe kusetshenziswa isethi engaphansi engahleliwe yedatha, esiza ukwethula ukuhlukahluka kumodeli.
Enye yezinzuzo eziyinhloko zezihlahla ezingahleliwe yikhono lazo lokusingatha inani elikhulu lezinto eziguquguqukayo ngaphandle kokudinga ukukhethwa kwangaphambili. Ngaphezu kwalokho, banikeza ukumelana okuhle kakhulu nedatha enomsindo noma engaphelele.
Enye inzuzo enkulu ukubaluleka okuguquguqukayo. Izihlahla ezingahleliwe zihlola umthelela wokuhluka ngakunye ekubikezelweni, ngaleyo ndlela kwenze kube nokwenzeka ukuhlonza izici ezibalulekile ezithonya imodeli. Lesi sici sibalulekile ekuqondeni ubudlelwano obuyisisekelo kudatha.
Ngamafuphi, izihlahla ezingahleliwe ziyithuluzi elibalulekile lanoma yimuphi uchwepheshe ofisa ukuxhaphaza ngokugcwele amandla ezindlela zokuhlanganisa. Banikeza inhlanganisela eyingqayizivele yokunemba, ukuqina nokutolika.
