Video: Hom kev sib cais twg tuaj yeem ua cov ntaub ntawv loj?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hierarchical pawg ua tsis tau tuav cov ntaub ntawv loj zoo tab sis K txhais tau tias pawg ua tau. Qhov no yog vim lub sij hawm complexity ntawm K txhais tau tias yog linear piv txwv li O (n) thaum lub hierarchical pawg yog quadratic i.e. O(n2).
Hais txog qhov no, dab tsi yog pawg hauv cov ntaub ntawv loj?
Ua pawg yog Machine Learning txheej txheem uas muaj kev sib koom ua ke ntawm cov ntaub ntawv cov ntsiab lus. Muab ib txheej ntawm cov ntaub ntawv cov ntsiab lus, peb tuaj yeem siv a pawg algorithm los faib txhua tus cov ntaub ntawv taw tes rau hauv ib pab pawg tshwj xeeb.
Ib yam li ntawd, dab tsi yog pawg thiab nws hom? Ua pawg cov txheej txheem yog siv los txheeb xyuas cov pab pawg ntawm cov khoom zoo sib xws hauv cov ntaub ntawv sib txawv uas tau sau los ntawm kev lag luam xws li kev lag luam, bio-kev kho mob thiab geo-spatial. Lawv txawv hom ntawm pawg cov txheej txheem, suav nrog: cov txheej txheem muab faib. Hierarchical pawg . Qauv-raws li pawg.
Kuj kom paub, hom twg ntawm pawg algorithm zoo dua rau cov ntaub ntawv loj heev?
K-Means uas yog ib qho ntawm feem ntau siv pawg txoj kev thiab K-Means raws li MapReduce yog suav tias yog ib qho kev daws teeb meem siab heev rau loj heev dataset clustering . Txawm li cas los xij, lub sijhawm ua haujlwm tseem yog ib qho teeb meem vim qhov nce ntawm cov iterations thaum muaj kev nce ntxiv. dataset qhov loj thiab tus naj npawb ntawm pawg.
Dab tsi yog clustering siv rau?
Ua pawg yog ib txoj hauv kev ntawm kev kawm tsis muaj kev saib xyuas thiab yog ib qho txheej txheem rau kev txheeb xyuas cov ntaub ntawv siv hauv ntau teb. Hauv Data Science, peb tuaj yeem siv pawg tsom xam kom tau txais qee qhov kev pom muaj txiaj ntsig los ntawm peb cov ntaub ntawv los ntawm kev pom cov pab pawg twg cov ntaub ntawv cov ntsiab lus poob rau hauv thaum peb siv a pawg algorithm.
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