2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov qauv sau ntawv tsis tu ncua (Qee lub sijhawm siv dav dav: ib qho tuaj yeem tso cov hlua ntev dua ntawm cov terminalslossis ib qho nonterminals yam tsis muaj lwm yam, ua cov lus yooj yim dua rau kev qhia thaum tseem txhais cov tib chav kawm ntawm hom lus.)
Vim li cas cov qauv sau ntawv tseem ceeb?
cov qauv sau ntawv raug siv dav hauv kev paub hais lus, txhais lus, thiab kev nkag siab lus. Cov qauv sau ntawv nplua nuj txaus kom haum rau cov lus ntuj tsim kom muaj ntau yam kev txhais cov kab lus. Cov kev tsis meej pem no yog qhov nyuaj rau kev siv tswv yim.
Vim li cas Chomsky hierarchy tseem ceeb?
Nyob hauv Chomsky hierarchy, cov qauv sau ntawv yooj yim tshaj plaws yog tsis tu ncua, thiab tuaj yeem ua raws li lub xeev automata finite. … Lub Chomsky hierarchy yog ib qho tseem ceeb hauv kev paub txog kev txawj ntse vim tias qhov nyuaj ntawm cov qauv sau ntawv hauv hierarchy tuaj yeem siv los ntsuas (ntawm qib suav) cov tswv yim theoretical hauv kev paub txog science.
Koj nkag siab txog yam lus li cas?
Nyob rau hauv logic, lej, computer science, thiab linguistics, ib tug formal language muaj cov lus uas nws cov tsiaj ntawv yog muab los ntawm ib tug tsiaj ntawv thiab tau zoo-tsim raws li ib tug tshwj xeeb cov cai. Cov tsiaj ntawv ntawm hom lus muaj xws li cov cim, cov tsiaj ntawv, lossis cov cim uas sib txuas ua cov hlua ntawm cov lus.
yog dab tsihierarchy ntawm cov lus?
Pib nrog, cov lus raug raug teeb tsa rau hauv lub nested hierarchy ntawm nce complexity. Nyob rau hauv nws cov classical formulation [3], qhov no thiaj li hu ua Chomsky hierarchy muaj plaub theem ntawm nce complexity: tsis tu ncua, ntsiab lus-dawb, ntsiab lus-sensitive thiab computably enumerablehom lus.
Pom zoo:
Vim li cas nws thiaj tseem ceeb kom sau ib daim ntawv qhia kom ntseeg tau?
Txhua txoj haujlwm tshawb fawb xav tau daim ntawv tswvyim: cov ntsiab lus luv luv uas qhia rau tus nyeem seb qhov project yog dab tsi, vim li cas nws tseem ceeb, thiab nws yuav ua li cas. Txawm hais tias tsis muaj leej twg tau nyeem nws, daim ntawv tswv yim pab tus kws tshawb fawb pom qhov hauv nws lossis nws qhov project uas yuav ua pov thawj tias tuag taus.
Vim li cas kev taw qhia tseem ceeb hauv cov qauv ntawm cov protein?
Vim tias cov qauv ntawm cov amino acids, cov saw hlau polypeptide muaj kev taw qhia, txhais tau tias nws muaj ob qhov kawg uas yog tshuaj sib txawv ntawm ib leeg. … Yuav kom kawm paub tias kev sib cuam tshuam ntawm cov amino acids ua rau cov protein ntau npaum li cas rau hauv nws qhov kev paub tab, kuv xav kom cov yeeb yaj kiab ntawm kev txiav txim ntawm cov qauv protein.
Vim li cas lub ntsiab lus tseem ceeb yog qhov tseem ceeb?
Grand mean centering sub lub ntsiab lus loj ntawm tus kwv yees siv qhov txhais los ntawm tag nrho cov qauv (X).. Vim li cas Grand txhais tau tias qhov chaw tseem ceeb? Lub ntsiab lus tseem ceeb yog qhov siv tau rov ntsuas duauas pab nrog kev txhais cov ntsiab lus cuam tshuam nrog kev cuam tshuam, nws txhais tau li cas, lossis qhov sib txawv ntawm txhua qib;
Dab tsi yog qhov tseem ceeb thiab vim li cas nws tseem ceeb los txheeb xyuas koj qhov tseem ceeb?
Qhov tseem ceeb yuav coj koj hauv kev txiav txim siab hauv lub neej thiab ua rau koj taug qab. Qhov tseem ceeb tshaj plaws, qhov tseem ceeb tshaj plaws yuav ua rau koj ntseeg siab hais tias "tsis yog." Lawv pab koj txheeb xyuas qhov xav tau tiag tiag hauv koj lub neej, piv rau lwm tus xav tias tseem ceeb.
Vim li cas kev huv huv thiaj tseem ceeb thaum sau tsab ntawv ua lag luam?
Cov ntawv ua lag luam tau tsim los tom qab kev xav thiab kev npaj kom zoo kom cov ntsiab lus tuaj yeem nthuav tawm hauv txoj hauv kev thiab muaj laj thawj. Cov lus uas tau hais nyob rau hauv cov ntawv no yog meej thiab tsis txhob poob siab. Vim li cas kev hais lus ncaj ncees tseem ceeb hauv tsab ntawv lag luam?
