Cov txheej txheem:
- Kev ua kom zoo dua qub yog siv rau dab tsi?
- Vim li cas combinatorial optimization nyuaj?
- Dab tsi yog qhov teeb meem combinatorial optimization?
- Is combinatorial optimization NP-hard?
Video: Puas yog kev sib xyaw ua kom zoo dua qub?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Nrog rau qhov kev tshwm sim ntawm kev ua haujlwm tawm, cov txheej txheem no tau siv rau cov teeb meem suav nrog kev ua haujlwm, qhov siab tshaj plaws, thiab kev thauj mus los. Nyob rau niaj hnub no, combinatorial optimization yog siv tau rau txoj kev kawm ntawm algorithms, nrog tshwj xeeb muaj feem xyuam rau kev txawj ntse, kev kawm tshuab, thiab kev tshawb fawb ua haujlwm.
Kev ua kom zoo dua qub yog siv rau dab tsi?
Combinatorial optimization yog txheej txheem ntawm kev tshawb nrhiav maxima (lossis minima) ntawm lub hom phiaj muaj nuj nqi F uas nws lub npe yog qhov tsis sib xws tab sis loj qhov chaw teeb tsa(as opposed to N-dimensional qhov chaw tas mus li).
Vim li cas combinatorial optimization nyuaj?
Qhov teeb meem tshwm sim los ntawm qhov tseeb tias tsis zoo li cov txheej txheem linear, thaj tsam ua tau ntawm qhov teeb meem sib txuas tsis yog qhov teeb tsa. Yog li, peb yuav tsum, es tsis txhob, tshawb xyuas lub lattice ntawm cov ntsiab lus ua tau, lossis nyob rau hauv cov ntaub ntawv ntawm cov ntaub ntawv sib xyaw ua ke, ib txheej ntawm cov kab sib txuas ib nrab lossis kab ntu kom pom qhov kev daws teeb meem zoo.
Dab tsi yog qhov teeb meem combinatorial optimization?
Combinatorial optimization yog ib lub ntsiab lus uas muaj ntawm kev nrhiav pom qhov khoom zoo los ntawm cov khoom tsis kawg… yog discrete los yog yuav raug txo kom discrete, thiab nyob rau hauv uas lub hom phiaj yog nrhiav qhov zoo tshaj plaws tov.
Is combinatorial optimization NP-hard?
Thaum qhov kev txiav txim siab version ntawm qhov teeb meem kev sib xyaw ua ke tau ua pov thawj tias muaj nyob hauv chav kawm ntawm NP-ua tiav cov teeb meem, ces qhov kev ua kom zoo dua yog NP- nyuaj… Qhov teeb meem optimization, piv txwv li, nrhiav qhov tsawg kawg nkaus tus lej (tsawg kawg k) ntawm lub hnub qub zoo li polygons uas nws lub koom haum sib npaug rau ib qho yooj yim polygon, yog NP- nyuaj.
Pom zoo:
Puas yog kev sib raug zoo ntawm kev sib raug zoo?
Monogamy yog kev sib raug zoo nrog ib tus khub ntawm ib lub sijhawm, tsis yog ntau tus neeg koom tes. Kev sib raug zoo monogamous tuaj yeem yog kev sib deev lossis kev xav, tab sis feem ntau yog ob qho tib si Ntau qhov kev sib raug zoo niaj hnub no yog monogamous.
Yog ntsev yog ib qho khoom xyaw lossis sib xyaw?
S alt is lwm compound. Nws cov qauv tshuaj yog NaCl, uas sawv cev rau sodium chloride . Yog ntsev yog ib qho khoom lossis cov khoom sib xyaw? Tshuaj, cov ntsev ntsev muaj ob lub ntsiab lus, sodium (Na) thiab chloride (Cl). Tsis yog lub ntsiab lus tshwm sim sib cais thiab dawb hauv cov xwm txheej, tab sis pom muaj khi ua ke raws li compound sodium chloride .
Puas qub kev sib xyaw ua tsis zoo?
Yuav Qhia Li Cas Yog Tsis Zoo? Cocktail mix mus phem, nws thiaj li. Lawv yog (tseem ceeb) cov dej ntim nrog qab zib thiab cov khoom khaws cia, yog li lawv nyob nyab xeeb haus tau ntau xyoo. Nws tsis zoo li koj yuav sawv ib hnub thiab pom tias muaj pwm hauv lub raj mis lossis lub thoob .
Puas yog kev sib raug zoo lossis kev sib raug zoo?
Kev sib raug zoo feem ntau yog hais txog kev sib sau ntawm tib neeg xws li lub koom haum kev sib raug zoo, kev sib koom tes, thiab lwm yam. Txawm li cas los xij, sociable feem ntau yog hais txog cov tib neeg uas nyiam lub zej zog ntawm lwm tus thiab nyiam.
Nyob rau hauv ib qho kev tsis sib haum xeeb pn kev sib tshuam cov kev sib tshuam tam sim no ntawm qhov sib npaug yog?
Nyob rau hauv qhov tsis ncaj ncees PN-kho qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog zero, vim tias sib npaug tab sis cov neeg nqa khoom hla hla kev sib tshuam . Thaum pn kev sib tshuam tsis ncaj ncees qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog?
