I-Nucleus ne-Top-k Sampling
I-Nucleus (top-p) kanye nesampula ephezulu-k izindlela zokuqopha ezengeza ukungahleliwe okulawulwayo ekukhiqizeni umbhalo ngokukhawulela ukuthi imaphi amathokheni angakhethwa.
Uhlolojikelele
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I-Deep Dive
Imodeli yolimi ikhipha amathuba okusabalalisa kuwo wonke amagama alo esinyathelweni ngasinye. Ukusampula ngokuqondile kusuka kukho kungakhetha amathokheni ayinqaba, amathuba amancane; njalo ukuthatha ithokheni ephezulu (abahahayo) kukhiqiza izihibe ezibuthuntu, eziphindaphindayo. Isampula ye-Top-k ilungisa lokhu ngokugcina kuphela amathokheni anethuba eliphakeme kakhulu lika-k (yithi k=40), ukwenza kabusha, nokuthatha amasampula phakathi kwawo. I-Nucleus sampling, eyethulwe ngu-Holtzman et al. ngo-2019, esikhundleni salokho igcina isethi encane yamathokheni amathuba awo okuqongelela adlula i-threshold p (isb., 0.9) — 'inucleus'. Inzuzo eyinhloko ukuthi le sethi iyashwabana lapho imodeli izethemba futhi inweba lapho ingaqinisekile, ijwayelana nezimo. Kokubili kuvame ukuhlanganiswa nepharamitha yezinga lokushisa elola noma ethambisa ukusatshalaliswa ngaphambi kokuthatha amasampula.
I-Technical Insight
Umehluko obalulekile ushintshile uma uqhathanisa ne-adaptive cutoff. I-Top-k ihlale igcina amathokheni angu-k ncamashi, angaba mbalwa kakhulu uma izinketho eziningi zinengqondo, noma ifake udoti lapho umbhangqwana kuphela onengqondo. I-Top-p igcina inombolo eguquguqukayo - amathokheni anele nje ukumboza amathuba okuba u-p - ngakho inciphisa umsila omude ongathembekile kuyilapho ihlonipha ukuthi ukusabalalisa kuphakame kangakanani noma kusicaba kangakanani. Izinga lokushisa (ngokuvamile 0.7-1.0) lilinganisa amalogi ngaphambi kwanoma iyiphi indlela: amanani aphansi agxilisa amathuba, amanani aphezulu ayasabalalisa.
I-Strategic Impact
Isivinini nesikali
Ukugeleza komsebenzi wolimi kungahamba ngokushesha ngaphandle kokudela ukuvumelana.
Finyelela futhi ufinyelele
Yandisa ukufinyelela kuzo zonke izilimi nezitayela zokuxhumana.
Izinqumo ezicacile
Amaqembu angachitha isikhathi esiningi ekwahluleleni kuyilapho i-automation isingatha impinda.
Ikusasa Le-Nucleus ne-Top-k Sampling
Ukukhipha amakhodi okusekelwe kusampula manje kuwukuzenzakalela kwama-chatbots namathuluzi okudala, futhi ucwaningo lulokhu lukucwengisa: izindlela ezifana nesampula evamile, i-min-p, kanye nesampula ye-eta/epsilon ihlose ukunciphisa umsila ngokuhlakanipha okukhulu kuno-p noma k ongashintshi. Lindela amapharamitha wokuqopha ukuze wazi umongo kakhudlwana futhi ufunde, uqinise ngokuzenzakalela ukuze uthole izimpendulo eziyiqiniso kanye nokuxegiswa ukuze kuhlanganiswe ingqondo. Njengoba amamodeli ethuthuka, ukulawula amasampula okucophelela kuhlala kubalulekile ukuze kulinganiswe ukwethembeka, ukuhlukahluka, kanye nokunciphisa ukubona izinto ezingekho.
Ukuqaliswa Komhlaba Wangempela
Ama-Chatbot asebenzisa i-top-p cishe ngo-0.9 ukuze agcine izimpendulo ezihlukahlukene kodwa zihlangene kuyo yonke ingxoxo
Abasizi bokubhala ngobuciko abakhuphula izinga lokushisa kanye no-p ukuze bacabange ngemibono yendaba eyahlukene
Amathuluzi okukhiqiza ikhodi ehlisa izinga lokushisa kanye no-k ukuze uthole amazwibela aqondile, alungile
Abasebenzisi be-API bashuna amapharamitha we-top_p kanye ne-top_k ukuze balawule ukuthi imiphumela yemodeli ibukeka kanjani
Izingozi & Guardrails
Amaqiniso akhonjiwe angafaka ngokuthula imibiko, ukugeleza kosekelo, noma imiphumela yocwaningo.
Ukuzwela okusheshayo kungadala imiphumela engahambisani kuzo zonke izicelo ezifanayo.
Idatha yombhalo ebucayi ingase idalulwe uma izilawuli zokufinyelela zibuthakathaka.
Ukuqalisa Umhlahlandlela
Chaza ifomethi yokuphumayo, ithoni, namazinga wekhwalithi ngaphambi kokukhishwa.
Izimpendulo eziyisisekelo ngemithombo ethembekile noma nini lapho ukunemba kubalulekile.
Gcina indawo yokuhlola isibuyekezo somuntu ukuze uthole imiphumela ephezulu.
Landela amaphethini okuhluleka futhi uqeqeshe kabusha imiyalo noma ukuhamba komsebenzi njalo.
Qhubeka Uhlole
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Umhlahlandlela olandelayo
Ukusampula Okujwayelekile
Imibuzo evame ukubuzwa
What is Nucleus and Top-k Sampling?
I-Nucleus (top-p) kanye nesampula ephezulu-k izindlela zokuqopha ezengeza ukungahleliwe okulawulwayo ekukhiqizeni umbhalo ngokukhawulela ukuthi imaphi amathokheni angakhethwa. Zibalulekile ngoba zenza ukubhala kwe-AI kuzizwe kungokwemvelo futhi kwahluka esikhundleni sokuphindaphinda noma okurobhothi.
Isampula ephezulu-k ikukhawulela kanjani ukukhetha kwamathokheni?
I-Top-k inciphisa ukusatshalaliswa kunombolo egxilile k yamathokheni okungenzeka kakhulu, enze kabusha, namasampuli asuka kulawo.
Yini echaza 'i-nucleus' ku-nucleus (top-p) sampling?
I-Top-p igcina iqembu elincane lamathokheni aphezulu amathuba awo anqwabelanayo afinyelela embundwini u-p, bese amasampuli phakathi kwawo.
Iyiphi inzuzo eyinhloko ye-top-p ngaphezu kwe-top-k?
Isethi yekhandidethi ye-Top-p iyashwabana lapho imodeli izethemba futhi ikhula lapho ingaqiniseki, ngokungafani nesibalo esingaguquki sika-top-k.
Yenzani ipharamitha yezinga lokushisa ngaphambi kokuthatha isampula?
Izinga lokushisa eliphansi ligxilisa amathuba kumathokheni aphezulu (okunqunyiwe okwengeziwe); izinga lokushisa eliphezulu liyayisicaba (lihluke kakhulu).
Kungani ukuqopha okumsulwa okunobugovu (okuhlale kuyithokheni ephezulu) ngokuvamile kungafuneki embhalweni ovulekile?
Ukukhipha amakhodi okuhahayo kuvame ukubambeka ekuphindaphindweni futhi kushoda izinhlobonhlobo zemvelo ezihlinzekwa ngamasampula okulawulwayo.