Qhov kev kwv yees yuam kev yog dab tsi?

Video: Qhov kev kwv yees yuam kev yog dab tsi?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Kev kwv yees yuam kev yog qhov txawv ntawm qhov tseeb parameter thiab kwv yees qhov ntsuas. Kawm ntxiv hauv: Evolutionary Computing Approaches to System Identification.

Ib yam li ntawd, nws yog nug, dab tsi yog tus qauv yuam kev ntawm qhov kwv yees?

Cov standard yuam kev ntawm kev kwv yees yog ib qho kev ntsuas ntawm qhov tseeb ntawm kev kwv yees. Txoj kab regression yog txoj kab uas txo qis qhov sib npaug ntawm squared deviations ntawm kev twv ua ntej (tseem hu ua qhov suav ntawm squares yuam kev ), thiab cov standard yuam kev ntawm kev kwv yees yog lub hauv paus square ntawm qhov nruab nrab squared kev sib txawv.

Ib tug kuj yuav nug, yog vim li cas tus qauv yuam kev ntawm kwv yees tseem ceeb? Txheem yuam kev yog tseem ceeb vim hais tias lawv muaj kev cuam tshuam ntau npaum li cas cov piv txwv hloov pauv ib qho statistic yuav qhia. Inferential txheeb cais koom nrog hauv kev tsim kho ntawm kev ntseeg siab lub sijhawm thiab kev ntsuas qhov tseem ceeb yog nyob ntawm txheem yuam kev . Cov txheem yuam kev ntawm ib qho kev txheeb cais nyob ntawm tus qauv loj.

Kuj nug, vim li cas peb thiaj siv tus qauv yuam kev?

Cov txheem sib txawv yog siv los pab txiav txim qhov siv tau ntawm cov ntaub ntawv raws li tus naj npawb ntawm cov ntaub ntawv cov ntsiab lus pom ntawm txhua qib ntawm txheem sib txawv . Txheem yuam kev ua haujlwm ntau dua li kev txiav txim siab qhov tseeb ntawm cov qauv lossis qhov tseeb ntawm ntau cov qauv los ntawm kev txheeb xyuas kev sib txawv hauv qhov txhais tau tias.

Tus qauv yuam kev ntawm kev faib ua feem yog dab tsi?

Standard yuam kev Ntawm Cov Loj . Standard yuam kev ntawm Loj : Cov txheem yuam kev ntawm kev faib ua feem yog qhov kis ntawm tus qauv proportions hais txog cov pejxeem txhais tau tias. Cov mis rau txheem yuam kev ntawm kev faib ua feem yog txhais raws li: Ntawm no, yog tus qauv kev faib ua feem thiab n yog tus naj npawb ntawm kev soj ntsuam.

Pom zoo:

Dab tsi yog kev kwv yees nyob rau hauv inferential statistics?

Inferential statistics yog siv los kos inferences txog ib tug pej xeem los ntawm ib tug qauv. Muaj ob txoj hauv kev tseem ceeb siv hauv kev txheeb xyuas qhov tseeb: kev kwv yees thiab kev ntsuas kev xav. Hauv kev kwv yees, tus qauv yog siv los kwv yees ib qho parameter thiab kev ntseeg siab luv txog qhov kwv yees tau tsim

Qhov kwv yees pKa ntawm thiol yog dab tsi?

6.4 Kuj nug tias, pKa ntawm thiol yog dab tsi? Thiols yog acidic ntau dua li cawv los ntawm qhov nruab nrab ntawm li 5 pKa units los yog li ntawd ( pKa txog 11 rau lub thiol duab hauv qab no). Nco ntsoov tias pKa yog logarithmic, yog li ntawd txhais tau tias lawv nyob li ntawm 10 5 lub sij hawm ntau acidic.