2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov ntaub ntawv sib tham sib taw qhia sawv cev rau ntsuas ntsuas kom ntau npaum li cas - lossis tsawg dua peb yuav pom ob qhov xwm txheej tshwm sim, muab lawv tus kheej qhov tshwm sim, thiab txheeb ze rooj plaub uas ob leeg muaj kev ywj pheej.
Dab tsi yog pointwise kev sib nrig sib qhia ntawm ob lo lus ntsuas?
Nyob hauv kev suav cov lus hais, qhov kev txiav txim thib ob ntawm kev sib koom ua ke ntawm cov ntaub ntawv sib koom ua ke yog ib qho kev ntsuas zoo sib xws. Txhawm rau ntsuas qhov kev sib koom ua ke ntawm ob lo lus, nws siv cov ntaub ntawv sib koom ua ke (PMI) txhawm rau txheeb cov npe ntawm cov lus tseem ceeb ntawm ob lub hom phiaj los ntawm lub cev loj.
NLP cov ntaub ntawv sib nrig yog dab tsi?
Mutual information ntsuas ntau npaum li cas cov ntaub ntawv - nyob rau hauv cov ntaub ntawv-theoretic sense - ib lo lus muaj txog cov chav kawm. Yog hais tias ib lub sij hawm faib yog tib yam nyob rau hauv cov chav kawm raws li nws yog nyob rau hauv lub sau tag nrho, ces..
Yuav ua li cas yog pointwise kev sib nrig sib ntaub ntawv xam?
Tus qauv dav dav rau cov ntaub ntawv sib koom ua ke yog muab hauv qab no; Nws yogbinary logarithm ntawm qhov sib koom ua ke ntawm X=a thiab Y=b, muab faib los ntawm cov khoom ntawm tus kheej qhov tshwm sim uas X=a thiab Y=b.
PMI yog dab tsi hauv kev kawm tshuab?
PMI: Pointwise Mutual Information, yog ib qho kev ntsuas ntawm kev sib raug zoo ntawm ob qhov xwm txheej x thiab y. Raws li koj tuaj yeem pom los ntawm cov lus qhia saum toj no, ncaj qha proportional rau tus naj npawb ntawmlub sij hawm ob qhov xwm txheej tshwm sim ua ke thiab inversely proportional rau tus neeg suav uas nyob rau hauv tus denominator.
Pom zoo:
Cov ntaub ntawv qhia ntawv puas txhawb nqa cov ntaub ntawv kawm?
Cov ntaub ntawv qhia yuav tsum txhawb nqa txoj kev kawm lub tswv yim, cov hom phiaj thiab cov hom phiaj ntawm Cheeb Tsamthiab cov hom phiaj ntawm cov ntaub ntawv kawm uas cov ntaub ntawv yuav raug siv. … Cov ntaub ntawv qhia yuav tsum ua tau raws li cov qauv zoo ntawm cov ntsiab lus tseeb thiab kev nthuav qhia.
Vim li cas kev sib txuas lus tseem ceeb?
Kev sib txuas lus zoo tej zaum yog qhov tseem ceeb tshaj plaws ntawm txhua txoj kev ua neej. Nws yog qhov ua rau peb xa cov ntaub ntawv mus rau lwm tus neeg, thiab nkag siab qhov uas tau hais rau peb. … Kev sib txuas lus, ntawm nws qhov yooj yim tshaj plaws, yog kev hloov cov ntaub ntawv ntawm ib qho chaw mus rau lwm qhov.
Dab tsi yog qhov tseem ceeb thiab vim li cas nws tseem ceeb los txheeb xyuas koj qhov tseem ceeb?
Qhov tseem ceeb yuav coj koj hauv kev txiav txim siab hauv lub neej thiab ua rau koj taug qab. Qhov tseem ceeb tshaj plaws, qhov tseem ceeb tshaj plaws yuav ua rau koj ntseeg siab hais tias "tsis yog." Lawv pab koj txheeb xyuas qhov xav tau tiag tiag hauv koj lub neej, piv rau lwm tus xav tias tseem ceeb.
Puas yog cov ntaub ntawv sib tw cov ntaub ntawv raug cai?
Kev tsim "Cov ntaub ntawv cog lus" yog cov ntaub ntawv sau uas txhais lub luag haujlwm, kev lav phib xaub, thiab "Ua haujlwm" raws li Daim Ntawv Cog Lus Tsim Kho, thiab raug cai lij choj rau ob tog (Tswj thiab tus neeg cog lus).
Vim li cas kev sib cog lus sib cog lus tseem ceeb?
Kev sib cog lus sib cog lus yog qhov tseem ceeb hauv kev lag luam kev sib raug zoo. Kev sib cog lus sib tham pab kom kev sib raug zoo ntawm cov neeg ua haujlwm thiab cov tswv ntiav ua haujlwm zoo. Kev sib raug zoo ntawm cov tswv ntiav thiab cov neeg ua haujlwm pab txhawb kev ua haujlwm ntawm lub tuam txhab.
