Fumanisa ubuGcisa bokuHlalutywa kweDatha yokuHlola
Ehlabathini apho idatha ibe yioyile entsha, ukwazi ukuyihlalutya sisakhono esibalulekileyo. Uqeqesho "lwenze uHlalutyo lweDatha yokuHlola" olunikezelwa yi-OpenClassrooms luyi-godsend kuye nabani na ojonge ukugqwesa obu bugcisa. Ngexesha leeyure ze-15, le khosi yenqanaba eliphakathi iya kukuvumela ukuba uqonde iintsingiselo zeseti yedatha yakho enkosi kwiindlela ezinamandla ezifana noHlalutyo lweCandelo eliyiNtloko (PCA) kunye ne-k-ithetha ukuhlanganisana.
Ngethuba lolu qeqesho, uya kufunda ukwenza uhlalutyo lokuhlola lwe-multidimensional, isixhobo esibalulekileyo kunoma yimuphi uMhlalutyi weDatha olungileyo. Uya kukhokelwa ekusebenziseni iindlela ezidumileyo ukuhlalutya ngokukhawuleza isampulu yakho, ukunciphisa ubungakanani benani labantu okanye izinto eziguquguqukayo. Iindlela ze-Iconic ezifana ne-PCA zikuvumela ukuba uchonge ngokukhawuleza iindlela eziphambili kwisampulu yakho, ngokunciphisa inani leenguqu eziyimfuneko ukumela idatha yakho, ngelixa ulahlekelwa ulwazi oluncinci njengoko kunokwenzeka.
Izinto ezifunekayo kule khosi kubuchule bemathematika kwi-Terminale ES okanye i-S level, ulwazi olufanelekileyo lweenkcukacha-manani ezichazayo ezinomlinganiselo omnye kunye nombini-dimensional, kunye nobuchule bePython okanye ulwimi lwe-R kumxholo weNzululwazi yeDatha. Umyalelo olungileyo weepandas, iNumPy kunye neelayibrari zeMatplotlib ziya kuba yimfuneko ukuba ukhetha iPython njengolwimi lwakho lwenkqubo.
Ngena kuQeqesho oluTyebileyo noLwakhiweyo
Ukuqalisa kuhlalutyo lwedatha yokuhlola kufuna uqeqesho olucwangcisiweyo nolucwangcisiweyo. I-OpenClassrooms ikunika indlela yemfundo ecingisiswe kakuhle ethi ikukhokele kumanqanaba ahlukeneyo okufunda. Uza kuqala ngentshayelelo yohlalutyo lwe-multidimensional, apho uya kufumanisa umdla wale ndlela kwaye udibane neengcali kwintsimi, njengo-Emeric Nicolas, isazi sedatha esaziwayo.
Njengoko uqhubela phambili kuqeqesho, uya kwaziswa kwiikhonsepthi eziphambili. Inxalenye yesibini yekhosi iya kukuntywilisela kwihlabathi le-Principal Component Analysis (PCA), ubuchule obuya kukuvumela ukuba uqonde imingeni kunye neendlela zokunciphisa umlinganiselo. Uya kufunda kwakhona indlela yokutolika isangqa solungelelaniso kwaye ukhethe inani lamacandelo oza kuwasebenzisa kuhlalutyo lwakho.
Kodwa akuphelelanga apho, isahlulo sesithathu sekhosi siya kukwazisa kubuchule bokwahlulahlula idatha. Uya kufunda malunga ne-k-means algorithm, indlela edumileyo yokuhlela idatha yakho ibe ngamaqela alinganayo, kunye neendlela zokuhlanganisana ngokwenqanaba. Ezi zakhono ziyimfuneko kuye nawuphi na umhlalutyi wedatha ojonge ukukhupha iingqiqo ezixabisekileyo kwimiqulu emikhulu yedatha.
Olu qeqesho lubanzi kwaye lukunika izixhobo ozidingayo ukuze ube yingcali yohlalutyo lwedatha. Uya kuba nakho ukwenza uhlalutyo lwedatha ngokuzimeleyo nangokufanelekileyo, isakhono esifunwa kakhulu kwihlabathi lanamhlanje lobuchwephesha.
Yandisa iiHorizons zakho zobuNgcali ngoQeqesho lwePragmatic
Kwinkalo eguqukayo yenzululwazi yedatha, ukufunyanwa kwezakhono zokusebenza kubalulekile. Olu qeqesho lulungiselela ukuba uhlangabezane nemiceli mngeni yokwenyani oya kudibana nayo kwikhondo lakho elizayo lomsebenzi. Ngokuzintyintya kwizifundo zokwenyani kunye neeprojekthi ezisebenzayo, uya kuba nethuba lokusebenzisa ulwazi lwethiyori olufunyenweyo.
Enye yeenzuzo eziphambili zolu qeqesho kukufikelela kuluntu lwabafundi abanengqondo efanayo kunye neengcali. Uya kukwazi ukutshintshiselana ngezimvo, uxoxe ngeekhonsepthi kunye nokusebenzisana kwiiprojekthi, wenze uthungelwano oluxabisekileyo lomsebenzi wakho wekamva. Ukongeza, iqonga le-OpenClassrooms likubonelela ngokujongwa komntu, okukuvumela ukuba uqhubele phambili ngesantya sakho ngelixa uzuza kuncedo lweengcali ezikulo.
Ukongeza, olu qeqesho lunikeza ukuguquguquka okungenakuthelekiswa nanto, kukuvumela ukuba ulandele iikhosi ngesantya sakho, ukusuka kwintuthuzelo yekhaya lakho. Le ndlela yokufunda yokuzimela ayisebenzi nje kuphela, kodwa ikhuthaza ukuphuhliswa kwezakhono zokuziphatha kunye nokulawula ixesha, izinto ezixabisekileyo kwihlabathi lanamhlanje lobungcali.
Ngamafutshane, olu qeqesho lisango lokuya kwikhondo eliyimpumelelo kwicandelo lenzululwazi yedatha. Ayikuxhobisi kuphela ngezakhono eziqinileyo zethiyori, kodwa kunye namava asebenzayo aya kukwenza wahluke kwimarike yomsebenzi.
