Video: MAPE siv li cas hauv kev kwv yees?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qhov nruab nrab yuam kev feem pua yuam kev ( MAPE ) yog ib qho kev ntsuas txheeb xyuas qhov tseeb a kwv yees system yog. Nws ntsuas qhov raug raws li feem pua, thiab tuaj yeem suav ua qhov nruab nrab qhov feem pua yuam kev rau txhua lub sijhawm rho tawm qhov txiaj ntsig tiag tiag faib los ntawm qhov tseeb.
Ib yam li ib tug yuav nug, MAPE yog dab tsi hauv kev kwv yees?
Qhov nruab nrab yuam kev feem pua yuam kev ( MAPE ), tseem hu ua txhais tau tias qhov feem pua ntawm qhov sib txawv (MAPD), yog ib qho kev ntsuas ntawm kev kwv yees qhov tseeb ntawm kev kwv yees txoj hauv kev txheeb cais, piv txwv li hauv kev kwv yees kwv yees, kuj tseem siv ua qhov poob rau cov teeb meem regression hauv kev kawm tshuab.
Tsis tas li ntawd, koj puas xav tau MAPE siab lossis qis? Txij li thaum MAPE yog ib qho kev ntsuas ntawm qhov yuam kev, siab zauv yog yawg thiab qis zauv yog zoo. Rau kev tshaj tawm lub hom phiaj, qee lub tuam txhab yuav txhais qhov no kom raug cov lej los ntawm kev rho tawm MAPE los ntawm 100.
Ntxiv mus, dab tsi yog MAPE zoo rau kev kwv yees?
Nws yog irresponsible los teem arbitrary kev kwv yees cov hom phiaj ua haujlwm (xws li MAPE <10% zoo heev, MAPE <20% yog Zoo ) tsis muaj cov ntsiab lus ntawm kev kwv yees ntawm koj cov ntaub ntawv. Yog koj yog kev kwv yees phem tshaj qhov tsis tau pom dua kwv yees (Kuv yuav hu qhov no "phem"), ces meej meej koj kev kwv yees txheej txheem xav tau kev txhim kho.
Vim li cas MAPE siv?
Qhov nruab nrab yuam kev feem pua yuam kev ( MAPE ) yog ib qho ntawm qhov dav tshaj plaws siv ntsuas ntawm kev kwv yees raug, vim nws qhov zoo ntawm kev ntsuas kev ywj pheej thiab kev txhais lus. Txawm li cas los xij, MAPE muaj qhov tsis zoo tseem ceeb uas nws tsim cov txiaj ntsig tsis kawg lossis tsis tau txhais rau xoom lossis zero-rau-zero qhov tseeb.
Pom zoo:
Dab tsi yog kev tshawb fawb kws tshawb fawb txog keeb kwm keeb kwm los kwv yees lub sijhawm tuag piav qhia vim li cas kev kwv yees tsis tas yuav ncaj?
Ib tus kws tshawb fawb kws tshawb fawb txog keeb kwm tshawb fawb kev txhim kho kab ntawm kab hauv lub cev los kwv yees lub sijhawm tuag. Cov kev txiav txim siab no tsis yog qhov yooj yim ib txwm vim tias tus nqi ntawm cov kab menyuam loj hlob tau cuam tshuam los ntawm ib puag ncig cuam tshuam xws li thaj chaw nyob, huab cua, thiab huab cua puag ncig
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Qhov twg hauv qab no yog kwv yees li qhov loj ntawm tib neeg lub siab?
Tib neeg lub plawv anatomy. Hauv tib neeg, lub plawv yog qhov loj ntawm lub nrig loj thiab hnyav li ntawm 10 txog 12 ooj (280 txog 340 grams) hauv cov txiv neej thiab 8 txog 10 ooj (230 txog 280 grams) hauv cov poj niam, raws li Henry Grey's 'Anatomy of Tib Neeg Lub Cev. '
Koj yuav piav qhia kev kwv yees li cas?
Classically, prognosis yog txhais raws li ib tug forecast los yog kwv yees. Kev kho mob, kev kwv yees yuav txhais tau tias yog kev cia siab rov zoo los ntawm kev raug mob lossis kab mob, lossis kev kwv yees lossis kev kwv yees ntawm chav kawm thiab qhov tshwm sim ntawm kev mob nkeeg. Xws li, kev kwv yees yuav txawv raws qhov raug mob, kab mob, hnub nyoog, poj niam txiv neej, haiv neeg thiab kev kho mob
Mad txhais li cas hauv kev kwv yees?
Lub ntsiab lus tsis txaus ntseeg MAD txhais tau tias