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Most guidelines for choosing the dev set size also apply to the training dev set.

Training Dev Set Size Guidelines

Machine Learning Yearning, a free ebook from Andrew Ng, teaches you how to structure Machine Learning projects.
https://www.deeplearning.ai/machine-learning-yearning/

Note: The content of the book is aligned with the Coursera Deeplearning.ai specialization.  https://www.deeplearning.ai/deep-learning-specialization/ 

Machine Learning Yearning (Deeplearning.ai)

How should dev set size guidance be used when choosing a training dev set size?

Most dev set sizing guidelines are relevant to the training dev set.

Most guidelines for choosing dev set size also apply to the _____.

Match each element of the sizing guidance to its role.

Order the reasoning for selecting a training dev set size.

Question:
In a concise analytical response, explain what the source permits—and does not permit—you to conclude about choosing a training dev set size.

Sample answer:
The source permits using most of the dev set size guidelines from Chapters 5–7 when choosing the training dev set size. However, it does not claim that every guideline applies, because it deliberately says “most.” Thus, the training dev set should generally follow the earlier sizing guidance without treating its applicability as absolute.

Key points:
- The relevant earlier guidance concerns picking dev set size.
- Most of that guidance also applies to the training dev set.
- The statement does not assert that every guideline applies.
- No additional sizing rule is supplied by the cited evidence.

Rubric:
A strong response identifies the earlier dev set guidance, explains its general applicability to the training dev set, and distinguishes “most” from “all” without adding unsupported sizing rules.

Explain the relationship between dev set and training dev set sizing guidance.

Case context:
A team has reviewed the dev set sizing guidelines in Chapters 5–7 and now needs to choose the size of its training dev set.

Question:
Based only on the cited guidance, what should the team decide about using the earlier guidelines?

Sample answer:
The team should use most of the Chapters 5–7 dev set sizing guidelines when choosing the training dev set size. It should not assume that all guidelines transfer automatically, because the source states only that most apply.

Key points:
- Consult the dev set sizing guidance from Chapters 5–7.
- Use most of that guidance for the training dev set.
- Do not replace the guidance with an unsupported rule.
- Preserve the qualification that most, rather than all, guidelines apply.

Rubric:
Full credit requires recommending the use of most earlier dev set sizing guidelines, identifying the training dev set as the new target, and avoiding a claim that every guideline necessarily applies.

Decide how a team should approach sizing a new training dev set.

Question:
Answer in one to three sentences: What guidance does the source recommend using when choosing the size of a training dev set?

Sample answer:
Use most of the guidelines from Chapters 5–7 for picking the size of the dev set. Those guidelines generally also apply to the training dev set.

Key points:
- Most dev set size guidelines are relevant.
- They also apply to the training dev set.
- The source points to Chapters 5–7.

Rubric:
The answer should mention most dev set size guidelines, their applicability to the training dev set, and avoid changing “most” to “all.”

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