Idanwo ti o sopọ mọ itọsọna · Alabọde Ipele

Idanwo deede

Check regularization goals, L1 and L2 penalties, dropout, early stopping, penalty strength, and numerical examples of a regularized objective.

Jẹmọ itọsọna awọn ọnaIṣatunṣe
Ibeere 1 ti 8

Why would a practitioner add regularization when a model fits training-specific noise?

Awotẹlẹ gbogbo ibeere8 ibeere

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

  1. Why would a practitioner add regularization when a model fits training-specific noise?
    • To guarantee zero training error
    • To remove the need for validation data
    • To guarantee a faster GPU kernel
    • To discourage overfitting and evaluate whether unseen-data performance improves
  2. Ilana isọdọtun wo ni o ṣeese julọ lati wakọ diẹ ninu awọn iwuwo deede si odo, yiyan awọn ẹya ni imunadoko?
    • L2 deede (ibajẹ iwuwo)
    • L1 deede
    • Ipese deede
    • Alekun oṣuwọn ẹkọ
  3. Bawo ni yiyọ kuro ṣe deede nẹtiwọọki nkankikan lakoko ikẹkọ?
    • O npa awọn ipele rẹ kuro patapata lati nẹtiwọki
    • O ṣe afikun awọn iwọn onigun mẹrin si iṣẹ isonu
    • O pa awọn neuronu laileto ni igbesẹ kọọkan ki wọn ko le ṣe deede
    • O da ikẹkọ duro nigbati pipadanu afọwọsi dide
  4. Ninu pipadanu igbagbogbo 'aṣiṣe + lambda × ijiya', kini lambda ti o pọ si ṣe?
    • Ṣe okunkun ijiya naa, titari awoṣe si awọn solusan ti o rọrun
    • Irẹwẹsi ijiya ati gba awọn iwuwo nla laaye
    • Yọ ọrọ aṣiṣe kuro patapata
    • Ko ni ipa lori awọn iwuwo
  5. Kini idi ti idaduro ni kutukutu ni a le ka bii iru isọdọtun?
    • Nitoripe o ṣe afikun ijiya iwuwo si isonu naa
    • Nitoripe o dẹkun ikẹkọ ṣaaju ki awoṣe bẹrẹ ariwo ibamu ninu data naa
    • Nitori ti o mu ki awoṣe agbara lori akoko
    • Nitoripe o yọ awọn neuronu kuro laileto
  6. What can happen when regularization is strengthened beyond what a task needs?
    • Both training and test accuracy must improve
    • The penalty becomes unrelated to the objective
    • Validation becomes unnecessary
    • The model can underfit useful structure even if variance decreases
  7. For a regularization example with weights minus two and one, what are the unscaled L1 and sum-of-squares L2 penalties?
    • L1 is three and L2 is five
    • L1 is minus one and L2 is three
    • L1 is five and L2 is three
    • Both penalties are minus two
  8. A regularized objective has prediction error two, lambda one-half, and penalty six. What is its total value?
    • Mẹjọ
    • Mẹta
    • Marun
    • Ọkan