Idanwo ti o sopọ mọ itọsọna · Lile Ipele

Idiwon-orisun Generative Models

Test score functions, denoising score matching, Langevin sampling, and the reverse-time SDE view of data generation from noise.

Jẹmọ itọsọna awọn ọnaAwọn awoṣe Generative Da Dimegilio
Ibeere 1 ti 8

Kini gangan ni 'Dimegilio' ti awọn awoṣe wọnyi kọ?

Awotẹlẹ gbogbo ibeere8 ibeere

Awọn idahun ati awọn alaye han bi o ṣe n mu ibeere naa.

  1. Kini gangan ni 'Dimegilio' ti awọn awoṣe wọnyi kọ?
    • Ilọsiwaju ti iwuwo iṣeeṣe log-pẹlu ọwọ si titẹ sii
    • Iwọn didara kan lati 0 si 100 fun aworan kọọkan
    • Nọmba awọn akoko ikẹkọ ti pari
    • Aami iyasọtọ ti aaye data
  2. Kini idi ti awọn awoṣe ti o da lori Dimegilio ṣe ikẹkọ lori data ti bajẹ pẹlu ariwo ni awọn iwọn pupọ?
    • Lati jẹ ki awọn aworan wo iṣẹ ọna
    • Nitori Dimegilio naa nira lati ṣe iṣiro nibiti data mimọ ko fọnka, ati ariwo kun ni awọn agbegbe yẹn
    • Lati dinku iwọn faili ti dataset
    • Nitori ariwo iyara soke ni GPU
  3. Ilana iṣapẹẹrẹ wo ni awọn awoṣe ti o da lori Dimegilio tete lo lati ṣe ipilẹṣẹ data?
    • Ilọkalẹ lori awọn piksẹli si aworan ibi-afẹde ti o wa titi
    • A nikan matrix isodipupo
    • Langevin dainamiki - igbesẹ pẹlu Dimegilio lakoko ti o nfi ariwo kun
    • Aileto cropping ati flipping
  4. Isopọ pataki wo ni iwe Dimegilio-SDE ti 2021 fi idi mulẹ?
    • Wipe awọn GAN nigbagbogbo dara julọ ju itankale lọ
    • Awọn nẹtiwọki nkankikan ko le ṣe awoṣe awọn aworan
    • Awọn awoṣe Dimegilio yẹn ṣiṣẹ nikan ni awọn iwọn meji
    • Awọn awoṣe itankale ati awọn awoṣe ti o da lori Dimegilio jẹ awọn iwo meji ti ilana SDE ti nlọsiwaju kanna
  5. Bawo ni asọtẹlẹ ariwo ṣe ni ibatan si sisọ asọtẹlẹ Dimegilio ni ṣiṣakoṣo ibaamu Dimegilio?
    • The conditional denoising-score target is −ε/σ for standardized Gaussian noise; the model estimates the noisy-data score
    • Noise prediction and score estimation are unrelated
    • Ariwo asọtẹlẹ ko ṣee ṣe
    • Dimegilio nigbagbogbo jẹ odo fun data ariwo
  6. Kí ni deterministic 'iṣeeṣe sisan ODE' jeki ti o funfun sitokasitik iṣapẹẹrẹ ko ni awọn iṣọrọ pese?
    • Lilo agbara GPU ti o ga julọ
    • Iṣiro iṣeeṣe deede ati ọna iṣapẹẹrẹ ipinnu ipinnu
    • Aami isamisi dataset laifọwọyi
    • Yiyọ ti awọn nilo fun eyikeyi nkankikan nẹtiwọki
  7. In score-based generation, what does the reverse-time SDE do?
    • It converts image labels into captions
    • It adds noise to an already generated output only
    • It transforms a prior noise distribution back toward the data distribution
    • It estimates the class label of each pixel
  8. In a score-based MRI reconstruction method, how can a learned image prior help recover an undersampled scan?
    • Use the prior alone and ignore measured k-space data
    • Combine the learned score prior with the measurement constraint during posterior sampling
    • Replace all measurements with random noise
    • Treat the score as a diagnosis of the patient