Video: Dab tsi yog lub network zoo?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Network Zoo . A zoo uas tus nqi rau ib tus neeg siv khoom nce ntxiv uas lwm tus neeg siv khoom siv zoo . ex. Facebook, Amazon, Instagram, Lo Lus, QWERTY. Network Cov yam ntxwv ntawm cov khoom.
Ntxiv rau qhov no, cov piv txwv ntawm kev cuam tshuam network yog dab tsi?
Ib txhia piv txwv ntawm ib sab network effect yog WhatsApp thiab Skype. Ib ob sab network effect siv qhov chaw hauv kev lag luam platform lag luam - rau piv txwv , Airbnb thiab eBay. Kev txaus txaus txhais tau hais tias xav tau ntau dua, uas ua rau muaj ntau dua.
Ib yam li ntawd, dab tsi yog qhov cuam tshuam hauv network thiab vim li cas nws thiaj li muaj nuj nqis? Cov network effect , kuj hu ua network Externality los yog demand-side economies ntawm scale, hais tias ib tug zoo los yog kev pab cuam yuav ntau muaj nuj nqis thaum muaj neeg siv ntau. Precisely, ntau qhov kev siv ntawm cov khoom lossis cov kev pabcuam, ntau yog nws tus nqi.
Hais txog qhov no, vim li cas lub network zoo?
Kev sib koom tes yuav pab koj txhim kho thiab txhim kho koj cov txheej txheem kev txawj ntse, nyob rau sab saum toj ntawm cov ncauj lus tshiab hauv koj txoj kev lag luam, khaws cov mem tes hauv kev ua lag luam, ntsib cov neeg cob qhia yav tom ntej, cov neeg koom tes, thiab cov neeg siv khoom, thiab nkag mus rau cov peev txheej tsim nyog uas yuav txhawb nqa koj txoj haujlwm. kev loj hlob.
Tus nqi ntawm lub network yog dab tsi?
A tus nqi network yog ib daim duab qhia txog kev sib raug zoo thiab kev pab cuam nyob rau hauv/nruab nrab cov koom haum thiab lawv siv li cas. Cov nodes hauv a tus nqi network sawv cev rau tib neeg (los yog abstractly, luag hauj lwm). Muaj nuj nqis tes hauj lwm cov ntaub ntawv sib txawv. Lawv suav txog qhov tsim nyog ntawm cov khoom thiab kev pabcuam.
Pom zoo:
Dab tsi yog qhov piv txwv ntawm qhov zoo nrog rau qhov zoo network sab nraud cuam tshuam?
Cov piv txwv classic yog xov tooj, qhov twg ntau tus neeg siv nce tus nqi rau txhua tus. Qhov zoo sab nraud yog tsim thaum lub xov tooj tau yuav yam tsis muaj nws tus tswv xav tsim kom muaj txiaj ntsig rau lwm tus neeg siv, tab sis ua li ntawd txawm tias
Dab tsi yog qhov txawv ntawm kev sib raug zoo unary kev sib raug zoo binary thiab kev sib raug zoo ternary?
Kev sib raug zoo tsis sib xws yog thaum ob tus neeg koom hauv kev sib raug zoo yog tib lub koom haum. Piv txwv li: Cov ncauj lus yuav yog qhov yuav tsum tau ua ua ntej rau lwm yam kev kawm. Kev sib raug zoo ternary yog thaum peb lub koom haum koom nrog kev sib raug zoo
Dab tsi yog qhov sib txawv ntawm lub thawv thiab lub thawv ntawv thiab lub thawv ntawv yog dab tsi?
Ib lub thawv thiab cov ntawv nplawm (qee zaum hu ua boxplot) yog ib daim duab uas nthuav tawm cov ntaub ntawv los ntawm tsib lub ntsiab lus. Nyob rau hauv ib lub thawv thiab whisker zajlus: qhov kawg ntawm lub thawv yog lub sab sauv thiab sab quartiles, yog li lub thawv spans lub interquartile ntau yam. qhov nruab nrab yog cim los ntawm ib txoj kab ntsug hauv lub thawv
Dab tsi yog sparse kem Dab tsi yog qhov zoo thiab qhov tsis zoo?
Koj poob 4 bytes tsis yog ib zaug ib kab; tab sis rau txhua lub cell hauv kab uas tsis yog null. Qhov zoo ntawm SPARSE kem yog: Qhov tsis zoo ntawm SPARSE kem yog: SPARSE kem tsis tuaj yeem siv rau ntawm cov ntawv, ntext, duab, timestamp, geometry, geography lossis cov neeg siv cov ntaub ntawv teev tseg
Cov cuab yeej twg koj tuaj yeem siv los tshawb pom qhov tsis zoo lossis kev teeb tsa tsis zoo ntawm koj lub khoos phis tawj thiab lub network?
Lub tshuab ntsuas qhov tsis zoo yog ib qho cuab yeej uas yuav tshuaj xyuas lub network thiab cov tshuab nrhiav qhov tsis zoo lossis cov teeb tsa tsis raug uas sawv cev rau kev pheej hmoo nyab xeeb