Dab tsi yog qhov sib thooj hauv cov ntaub ntawv mining?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

Qhov ze Kev ntsuas xa mus rau Cov Kev Ntsuas ntawm Qhov Zoo sib xws thiab Kev Tsis Zoo. Zoo sib xws thiab Dissimilarity yog ib qho tseem ceeb vim lawv siv los ntawm ib tug xov tooj cov ntaub ntawv mining cov txheej txheem, xws li kev sib koom ua ke, kev faib cov neeg nyob ze ze tshaj plaws, thiab kev tshawb nrhiav qhov tsis txaus ntseeg.

Hais txog qhov no, qhov kev ntsuas sib thooj yog dab tsi?

Kev ntsuas qhov sib thooj qhia qhov zoo sib xws los yog qhov sib txawv uas muaj nyob nruab nrab ntawm cov khoom, cov khoom, stimuli, los yog cov neeg uas underlies ib qho kev tshawb fawb empirical.

Ib sab saum toj no, koj pom qhov sib thooj ntawm lub matrix li cas? Distance Matrix

1. Qhov sib thooj ntawm cov khoom tuaj yeem ntsuas raws li matrix nrug.
2. Piv txwv li, qhov deb ntawm cov khoom A = (1, 1) thiab B = (1.5, 1.5) yog xam raws li.
3. Lwm qhov piv txwv ntawm kev ncua deb ntawm cov khoom D = (3, 4) thiab F = (3, 3.5) yog xam raws li.

Yog li ntawd, dab tsi zoo sib xws thiab dissimilarity nyob rau hauv cov ntaub ntawv mining?

Similarity thiab dissimilarity yog cov tom ntej cov ntaub ntawv mining tswv yim peb yuav tham txog. Zoo sib xws yog ib qho kev ntsuas tus lej uas zoo ib yam li ob cov ntaub ntawv cov khoom yog, thiab tsis sib xws yog ib qho kev ntsuas tus lej ntawm qhov sib txawv li cas cov ntaub ntawv cov khoom yog.

Dab tsi yog dissimilarity matrix?

Cov Dissimilarity matrix yog a matrix uas qhia txog qhov zoo sib xws rau khub ntawm ob pawg. Nws yog square thiab symmetrical. Cov tswv cuab kab pheeb ces kaum txhais tau tias yog xoom, txhais tau tias xoom yog qhov ntsuas ntawm tsis sib xws nruab nrab ntawm lub ntsiab thiab nws tus kheej.