Zitholele Ubuciko Bokuhlaziywa Kwedatha Yokuhlola
Ezweni lapho idatha isiphenduke amafutha amasha, ukwazi ukuyihlaziya kuyikhono elibalulekile. Ukuqeqeshwa kokuthi "Yenza Ukuhlaziywa Kwedatha Yokuhlola" okunikezwa i-OpenClassrooms kuwunkulunkulu wawo wonke umuntu ofuna ukuba ingcweti lobu buciko. Ngobude besikhathi samahora angu-15, lesi sifundo seleveli emaphakathi sizokuvumela ukuthi uqonde ukuthrenda kwedathasethi yakho ngenxa yezindlela ezinamandla ezifana nokuhlaziywa kwengxenye eyinhloko (PCA) kanye nokuhlanganisa kwe-k-means.
Phakathi nalokhu kuqeqeshwa, uzofunda ukwenza ukuhlaziywa kokuhlola okuhlukahlukene, ithuluzi elibalulekile lanoma yimuphi umhlaziyi wedatha omuhle. Uzoqondiswa ekusetshenzisweni kwezindlela ezidumile ukuze uhlaziye ngokushesha isampula yakho, unciphise ubukhulu benombolo yabantu ngabanye noma okuguquguqukayo. Izindlela ezingokomfanekiso ezifana ne-PCA zikuvumela ukuthi ukhombe ngokushesha amathrendi ayinhloko kusampula yakho, ngokunciphisa inani lezinto eziguquguqukayo ezidingekayo ukumela idatha yakho, kuyilapho ulahlekelwa ulwazi oluncane ngangokunokwenzeka.
Izimfuneko zalesi sifundo ubungcweti bezibalo ezingeni le-Terminale ES noma le-S, ulwazi oluhle lwezibalo ezichazayo ezinohlangothi olulodwa nezinhlangothi ezimbili, kanye nekhono lolimi lwePython noma lwe-R kumongo weSayensi Yedatha. Umyalo omuhle wemitapo yolwazi yamapanda, iNumPy kanye neMatplotlib uzodingeka uma ukhetha iPython njengolimi lwakho lohlelo.
Gxumela Ekuqeqesheni Okucebile Nokwakhiwe
Ukuqalisa ekuhlaziyeni idatha yokuhlola kudinga ukuqeqeshwa okuhlelekile nokuhleleke kahle. I-OpenClassrooms ikunikeza indlela yemfundo ecatshangelwe kahle ekuqondisa ezigabeni ezihlukene zokufunda. Uzoqala ngesethulo sokuhlaziya okuhlola izinhlangothi eziningi, lapho uzothola khona intshisekelo yale ndlela futhi uhlangane nochwepheshe kulo mkhakha, abafana no-Emeric Nicolas, usosayensi wedatha owaziwayo.
Njengoba uqhubeka nokuqeqeshwa, uzokwaziswa ngemiqondo ethuthuke kakhulu. Ingxenye yesibili yesifundo izokucwilisa emhlabeni Wokuhlaziywa Kwengxenye Eyinhloko (PCA), indlela ezokuvumela ukuthi uqonde izinkinga nezindlela zokunciphisa ubukhulu. Uzofunda futhi ukuthi ungayihumusha kanjani indilinga yokuhlobana futhi ukhethe inani lezingxenye ozozisebenzisa ekuhlaziyeni kwakho.
Kodwa akugcini lapho, ingxenye yesithathu yesifundo izokwethula kumasu okuhlukanisa idatha. Uzofunda mayelana ne-algorithm ye-k-means, indlela edumile yokuhlukanisa idatha yakho ibe ngamaqembu afanayo, kanye nezindlela zokuhlanganisa ze-hierarchical. Lawa makhono abalulekile kunoma yimuphi umhlaziyi wedatha ofuna ukukhipha imininingwane ebalulekile emiqulwini emikhulu yedatha.
Lokhu kuqeqeshwa kubanzi futhi kukunikeza amathuluzi owadingayo ukuze ube uchwepheshe wokuhlaziya idatha. Uzokwazi ukwenza ukuhlaziya idatha yokuhlola ngokuzimela nangempumelelo, ikhono elifunwe kakhulu emhlabeni wanamuhla wochwepheshe.
Nweba i-Professional Horizons yakho nge-Pragmatic Training
Emkhakheni oguquguqukayo wesayensi yedatha, ukutholwa kwamakhono asebenzayo kubalulekile. Lokhu kuqeqeshwa kukulungiselela ukubhekana nezinselele zangempela ozohlangabezana nazo emsebenzini wakho wesikhathi esizayo. Ngokugxila ezifundweni zangempela namaphrojekthi asebenzayo, uzothola ithuba lokusebenzisa ulwazi lwethiyori oluzuzile.
Enye yezinzuzo ezinkulu zalokhu kuqeqeshwa ukufinyelela emphakathini wabafundi abanomqondo ofanayo nochwepheshe. Uzokwazi ukushintshisana ngemibono, uxoxe ngemibono futhi uhlanganyele kumaphrojekthi, udale inethiwekhi ebalulekile yomsebenzi wakho wesikhathi esizayo. Ngaphezu kwalokho, inkundla ye-OpenClassrooms ikunikeza ukuqapha komuntu siqu, okukuvumela ukuthi uthuthuke ngejubane lakho ube uzuza osizweni lochwepheshe kulo mkhakha.
Ngaphezu kwalokho, lokhu kuqeqeshwa kukunikeza ukuguquguquka okungenakuqhathaniswa, okukuvumela ukuthi ulandele izifundo ngejubane lakho, ukusuka ekunethezekeni kwekhaya lakho. Le ndlela yokufunda eziqondisayo ayigcini nje ngokusebenza, kodwa futhi ikhuthaza ukuthuthukiswa kwamakhono okuzithiba kanye nokuphatha isikhathi, izimpahla ezibalulekile ezweni lanamuhla lochwepheshe.
Ngamafuphi, lokhu kuqeqeshwa kuyisango lokuya emsebenzini ophumelelayo emkhakheni wesayensi yedatha. Akukuhlomisi kuphela ngamakhono aqinile etiyetha, kodwa futhi nolwazi olusebenzayo oluzokwehlukanisa emakethe yemisebenzi.
