Video: Dab tsi yog cov ntaub ntawv summarization?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov ntsiab lus yog tus yuam sij cov ntaub ntawv mining tswvyim uas koom nrog cov txheej txheem los nrhiav cov lus piav qhia ntawm cov ntaub ntawv. Yooj yim cov ntsiab lus cov txheej txheem xws li tabulating qhov nruab nrab thiab tus qauv sib txawv feem ntau siv rau kev tshawb nrhiav cov ntaub ntawv tsom xam, cov ntaub ntawv visualization thiab automated report generation.
Ntxiv mus, dab tsi yog cov ntaub ntawv summarization hauv kev txheeb cais?
Cov ntsiab lus kev txheeb cais xaus thiab muab cov ntaub ntawv hais txog koj tus qauv cov ntaub ntawv . Nws qhia koj ib yam dab tsi txog cov txiaj ntsig hauv koj cov ntaub ntawv teeb. Qhov no suav nrog qhov nruab nrab qhov twg thiab seb koj li cas cov ntaub ntawv ua skew. Cov ntsiab lus txheeb cais poob rau hauv peb pawg tseem ceeb: Kev ntsuas ntawm qhov chaw (tseem hu ua central tendency).
Koj nkag siab dab tsi los ntawm kev sau cov ntaub ntawv? Cov ntaub ntawv Sumarization yog ib lo lus yooj yooj yim rau lub ntsiab lus luv luv ntawm txoj kev xav loj lossis ib nqe lus. Nov yog qee yam nyob qhov twg koj sau tus lej thiab thaum kawg, koj tshaj tawm qhov kawg tshwm sim nyob rau hauv daim ntawv ntawm sau cov ntaub ntawv . Cov ntaub ntawv summarization muaj qhov tseem ceeb heev hauv lub cov ntaub ntawv mining.
Hauv qhov no, cov ntsiab lus ntawm cov ntaub ntawv yog dab tsi?
Cov ntaub ntawv txhais tau tias ib tug tshiab Cov ntsiab lus cov ntaub ntawv yog tsim los khaws cov nqi sib sau rau tag nrho hauv kab. Kis mus cov ntaub ntawv txhais tau tias ib tug tshiab sub- Cov ntsiab lus lossis cov ntaub ntawv sib kis rau txhua lub sijhawm sib kis yog tsim nrog tus kheej tus nqi rau lub sijhawm ntawd. Cov ntaub ntawv cov rooj khaws cia ib ntus thiab faib cov cov ntaub ntawv.
Vim li cas cov ntaub ntawv summarization tsim nyog?
Peb sau cov ntaub ntawv kom "simplify" cov cov ntaub ntawv thiab ceev nrooj txheeb xyuas qhov zoo li "ib txwm" thiab dab tsi zoo li khib. Kev faib tawm ntawm qhov sib txawv qhia tau hais tias qhov txiaj ntsig ntawm qhov sib txawv yuav siv li cas thiab ntau npaum li cas qhov sib txawv yuav siv cov txiaj ntsig no.
Pom zoo:
Cov ntaub ntawv hom thiab cov qauv ntaub ntawv yog dab tsi?
Cov qauv ntaub ntawv yog ib txoj hauv kev piav qhia txog ib txoj hauv kev los npaj cov ntaub ntawv kom ua haujlwm andalogrithms tuaj yeem siv tau yooj yim dua. Ib hom ntaub ntawv piav qhia txog cov ntaub ntawv uas txhua tus sib koom ua ke. Piv txwv li tus lej cov ntaub ntawv hom piav qhia txhua tus lej uas lub khoos phis tawj tuaj yeem ua tau
Dab tsi yog qhov txawv ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb?
Qhov sib txawv loj ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb Ib daim ntawv XML muaj cov ntaub ntawv hais txog kev sib raug zoo ntawm cov ntaub ntawv rau ib leeg nyob rau hauv daim ntawv ntawm hierarchy. Nrog rau tus qauv kev sib raug zoo, tib hom kev sib raug zoo uas tuaj yeem txhais tau yog cov lus niam txiv thiab cov rooj sib raug zoo
Dab tsi yog qhov sib txawv ntawm pab pawg cov ntaub ntawv thiab cov ntaub ntawv tsis yog pawg?
Ob leeg yog cov ntaub ntawv muaj txiaj ntsig ntawm cov ntaub ntawv tab sis qhov sib txawv ntawm lawv yog cov ntaub ntawv tsis muaj ntaub ntawv yog rawdata. Qhov no txhais tau hais tias nws nyuam qhuav tau sau tab sis tsis txheeb rau hauv ib pawg lossis cov chav kawm. Ntawm qhov tod tes, groupeddata yog cov ntaub ntawv uas tau teeb tsa ua pawg los ntawm cov ntaub ntawv nyoos
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Dab tsi yog cov teeb meem ntawm kev tswj cov ntaub ntawv hauv cov ntaub ntawv ib txwm muaj?
Nyob rau tib lub sijhawm, qhov kev tswj hwm cov ntaub ntawv ib puag ncig tsim teeb meem xws li cov ntaub ntawv rov ua dua thiab tsis sib xws, cov kev pab cuam-cov ntaub ntawv dependence, inflexibility, tsis muaj kev ruaj ntseg, thiab tsis muaj cov ntaub ntawv sib qhia thiab muaj