Video: Qhov nruab nrab ntawm lub tswb nkhaus nyob qhov twg?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Cov tswb nkhaus rau ib tug muab cov ntaub ntawv muaj qhov chaw nyob rau ntawm lub txhais tau tias . Nov yog qhov chaw siab tshaj ntawm nkhaus sau “top of the tswb “Yog nyob. Cov ntaub ntawv teeb tsa tus qauv sib txawv txiav txim siab nthuav tawm peb li cas tswb nkhaus yog Qhov loj dua tus txheej txheem sib txawv, nthuav tawm ntau ntxiv nkhaus.
Tsis tas li ntawd, Bell Curve puas zoo lossis phem?
Nws nruj heev Muaj cov xwm txheej ntawm cov neeg ua haujlwm tau muab cov gradient tshwj xeeb kom cov tswb nkhaus cov kev xav tau txaus siab. Nws yog qhov kev ntsuas ntsuas yuam uas tsis muaj zoo tsis yog cais cov neeg ua haujlwm.
Qhov thib ob, lub tswb nkhaus ua haujlwm li cas? Hauv kev kawm, muab qhab nia ntawm a tswb nkhaus yog ib txoj hauv kev muab cov qhab nia tsim los ua kom cov qhab nia xav tau ntawm cov tub ntxhais kawm hauv chav kawm. Nov yog qib kawm qhov qhab nia nruab nrab yuav tau txais, thiab yuav yog qhov feem ntau. Kev lig kev cai, hauv ABCDF qhov no yog qib 'C'.
Tom qab ntawd, lub ncov ntawm lub tswb zoo li nkhaus sawv cev li cas?
Hauv ib tswb nkhaus , cov ncov sawv cev qhov tshwm sim feem ntau tshwm sim hauv dataset thaum lwm cov xwm txheej sib npaug sib npaug ntawm qhov ncov . Cov ncov ntawm nkhaus sib raug rau txhais tau tias ntawm cov ntaub ntawv (nco ntsoov tias cov txhais tau tias nyob rau hauv qhov tshwm sim ib txwm faib tseem sib npaug nruab nrab. Qhov nruab nrab thiab hom).
Kev hloov pauv txhais li cas cuam tshuam rau txoj kab nkhaus ib txwm muaj?
Paub tias hloov qhov txhais tau tias ntawm a li qub ceev nkhaus shifts cov nkhaus raws kab rov tav axis tsis muaj hloov nws cov duab. Paub tias kev nce tus txheej txheem sib txawv ua rau lub ntsej muag zoo nkauj thiab dav dua nkhaus thiab qhov txo qis tus qauv sib txawv ua rau siab dua thiab nqaim nkhaus.
Pom zoo:
Thaum tus nqi marginal siab tshaj qhov nruab nrab tus nqi nruab nrab tag nrho cov nqi yuav tsum poob?
Thaum tus nqi marginal qis dua tus nqi nruab nrab tag nrho, tus nqi nruab nrab tag nrho yuav poob, thiab thaum tus nqi marginal siab dua tus nqi nruab nrab, tus nqi nruab nrab yuav nce ntxiv. Lub tuam txhab ua haujlwm tau zoo tshaj plaws ntawm tus nqi nruab nrab qis tshaj, uas tseem yog qhov nruab nrab tag nrho tus nqi (ATC) = tus nqi qis (MC)
Dab tsi yog qhov txawv ntawm qhov nruab nrab nce siab thiab lub tsev siab siab?
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Dab tsi txaus ntshai zoo kawg li nws yog qhov peb yuav tsum tau khawb trenches thiab sim cov roj npog qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob hauv lub tebchaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi?
Qhov txaus ntshai npaum li cas, zoo heev, zoo kawg yog tias peb yuav tsum tau khawb trenches thiab sim roj-qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob rau hauv ib lub teb chaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi. Nws zoo nkaus li tseem tsis yooj yim dua tias kev sib cav uas twb tau hais tseg hauv txoj cai yuav tsum yog kev ua tsov rog
Yuav ua li cas yog tias qhov chaw nruab nrab ntawm lub ntiajteb txawj nqus txav tawm sab nraud ntawm daim duab peb sab stability?
Txhua lub sijhawm lub forklift qhov nruab nrab ntawm lub ntiajteb txawj nqus txav tawm sab nraud ntawm daim duab peb sab kev ruaj ntseg, lub elevator yuav tawm mus.Yog tias cov kab hauv qab no mus rau sab nraud ntawm daim duab peb sab kev ruaj ntseg - vim tias lub nra hnyav dhau los yog siab dhau, lossis vim tias lub forklift tsis nyob ntawm qhov chaw - nws yuav tip over
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Raws li tus nqi ntawm qhov zoo lossis kev pabcuam txo qis tib neeg feem ntau xav yuav ntau ntawm nws thiab rov ua dua. Vim li cas aneconomist tsim kev lag luam xav tau nkhaus? Ua piv txwv yuav ua li cas tib neeg yuav hloov lawv cov kev yuav khoom thaum tus nqi hloov. Daim ntawv cog lus ntawm tus nqi thiab cov khoom lag luam