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ORPO combines supervised fine-tuning with an odds-ratio preference penalty in one training phase and does not require a separate reference model.
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Its behavior depends on the preference data, objective settings, and implementation.
Odds Ratio Preference Optimization starts with supervised fine-tuning on preferred responses and adds a penalty that contrasts the policy’s odds for chosen and disfavored responses. This monolithic objective avoids a separate reference model and a distinct preference-optimization phase. The paper describes the objective as a way to apply preference alignment during SFT; it does not mean that every data pipeline or implementation uses no auxiliary components. The odds transformation produces a different penalty shape from a raw log-probability difference. Outcomes depend on the preference dataset, coefficient, base model, and evaluation. ORPO is a training method, not an inference-time decoding rule or a guarantee that preferences are faithfully represented.
Kurekebisha muundo wa gumzo wa chanzo huria wa 7B kwenye jozi za mapendeleo bila kupakia nakala ya pili ya marejeleo, na kupunguza nusu ya kumbukumbu ya GPU.
Anzisho la kupanga msaidizi wa usaidizi kwa mteja ili kupendelea majibu ya heshima, ya sera katika mafunzo moja badala ya SFT-basi-DPO.
Watafiti wanaolinganisha ORPO dhidi ya DPO kwenye mkusanyiko wa data sawa ili kuonyesha upatanishi unaolingana na komputa ya chini
Kurekebisha muundo msingi kwa kikoa maalum (k.m., kuandika kisheria) ambapo jozi nzuri na mbaya za mifano zinapatikana lakini bajeti ya mfano wa zawadi haipo.
ORPO inavutia kwa sababu inapunguza kumbukumbu na kukokotoa kwa kuacha muundo wa marejeleo, ambao unavutia timu kurekebisha maunzi machache. Tarajia kuonekana mara nyingi zaidi katika mapishi ya chanzo huria na kama chaguo-msingi katika maktaba kama vile Hugging Face TRL. Kazi ya siku zijazo ina uwezekano wa kurekebisha uzani wa lambda kiotomatiki, kuchanganya ORPO na malengo mengine yasiyo na marejeleo, na kuipanua hadi miundo mingi na mikubwa sana ambapo kuhifadhi nakala mbili kwenye kumbukumbu ni gharama kubwa.
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ORPO combines supervised fine-tuning with an odds-ratio preference penalty in one training phase and does not require a separate reference model. Its behavior depends on the preference data, objective settings, and implementation.
ORPO hukunja ujifunzaji wa mapendeleo katika upotevu wa SFT na haihitaji nakala ya marejeleo iliyogandishwa ya modeli, kuhifadhi kumbukumbu na kukokotoa.
ORPO hutumia uwiano wa odds (p/(1-p)) modeli inapeana jibu linalopendekezwa dhidi ya lile lisilopendelewa.
ORPO uses chosen and rejected responses for the same prompt to form its preference comparison.
Odds are computed as p/(1−p); ORPO applies this transformation when forming its preference term.
ORPO huongeza muda wa uwiano wa odds-ratio uliowekewa uzito juu ya upotevu unaosimamiwa wa mtambuka.
Endelea kujifunza
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InayofuataMwongozo unaofuata
Uboreshaji wa Mapendeleo ya Moja kwa moja
Lugha AI