Cov txheej txheem:
Video: Koj siv latent Dirichlet faib li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
LDA yog dab tsi?
- Xaiv koj cov khoom tshwj xeeb ntawm qhov chaw.
- Xaiv ntau npaum li cas composites koj xav tau.
- Xaiv ntau qhov chaw koj xav tau ib qho kev sib xyaw (piv txwv los ntawm Poisson kev faib tawm ).
- Xaiv pes tsawg lub ncauj lus (qeb) koj xav tau.
- Xaiv ib tug xov tooj ntawm tsis-zero thiab zoo infinity thiab hu nws alpha.
Ib yam li ntawd, koj tuaj yeem nug, yog Latent Dirichlet Allocation tshuab kev kawm?
Latent Dirichlet faib ( LDA ) yog ib tug generative probabilistic qauv ntawm ib tug corpus. Lub tswv yim tseem ceeb yog tias cov ntaub ntawv tau sawv cev raws li kev sib xyaw ua ke latent cov ncauj lus, qhov twg txhua lub ncauj lus yog tus cwj pwm los ntawm kev faib cov lus.
Ib yam li ntawd, LDA lub ntsiab lus qauv ua haujlwm li cas? LDA xav tias cov ntaub ntawv yog tsim los ntawm kev sib xyaw ntawm cov ncauj lus. Cov ncauj lus ntawd mam li tsim cov lus raws li lawv qhov yuav tshwm sim. Muab cov ntaub ntawv ntawm cov ntaub ntawv, LDA backtracks thiab sim xyuas seb cov ncauj lus dab tsi yuav tsim cov ntaub ntawv hauv thawj qhov chaw. LDA yog cov txheej txheem matrix factorization.
Hais txog qhov no, koj hais li cas latent Dirichlet faib?
Lub "ch" tuaj yeem hais tau zoo li lub suab "sh", lossis lub suab "k" nyuaj. Thiab qhov xaus "et" tuaj yeem hais tau hauv Fabkis txoj kev ua "ntev" lossis "cia" nrog lub suab "t" nyuaj. Latent Dirichlet faib tau piav qhia thawj zaug hauv daim ntawv tshawb fawb xyoo 2003, tab sis zoo li feem ntau cov tswv yim, cov tswv yim tseem ceeb tau luam tawm ua ntej.
Puas yog Latent Dirichlet Allocation saib xyuas lossis tsis saib xyuas?
Yog lawm os LDA yog ib tsis saib xyuas txoj kev. Txawm li cas los xij, nws tuaj yeem txuas ntxiv mus rau a saib xyuas ib.
Pom zoo:
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