Databricks Exam Databricks-Machine-Learning-Associate Topic 4 Question 13 Discussion

Actual exam question for Databricks's Databricks-Machine-Learning-Associate exam

Question #: 13
Topic #: 4

[All Databricks-Machine-Learning-Associate Questions]

A data scientist is utilizing MLflow Autologging to automatically track their machine learning experiments. After completing a series of runs for the experiment experiment_id, the data scientist wants to identify the run_id of the run with the best root-mean-square error (RMSE).

Which of the following lines of code can be used to identify the run_id of the run with the best RMSE in experiment_id?

AOption A

BOption B

COption C

DOption D

Show Suggested Answer

Suggested Answer: C

To find the run_id of the run with the best root-mean-square error (RMSE) in an MLflow experiment, the correct line of code to use is:

mlflow.search_runs( experiment_id, order_by=['metrics.rmse'] )['run_id'][0]

This line of code searches the runs in the specified experiment, orders them by the RMSE metric in ascending order (the lower the RMSE, the better), and retrieves the run_id of the best-performing run. Option C correctly represents this logic.

Reference

MLflow documentation on tracking experiments: https://www.mlflow.org/docs/latest/python_api/mlflow.html#mlflow.search_runs

by Rebeca at Aug 25, 2024, 08:11 PM

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Belen

7 months ago

I agree with Lakeesha, Option C looks like the best option to me as well.

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Lakeesha

7 months ago

But Option C seems to have the most relevant code snippet for identifying the best RMSE.

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Reiko

7 months ago

I disagree, I believe Option D is the right choice.

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Lakeesha

7 months ago

I think Option C is the correct one.

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Marjory

8 months ago

I'm just going to close my eyes and point at the screen. Whatever I land on, that's my answer. Okay, I landed on Option B. I'm a genius!

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Asuncion

7 months ago

Yeah, let's look at the options. I'll go with Option B.

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Filiberto

7 months ago

I think we need to use code to identify the run_id with the best RMSE.

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Edelmira

8 months ago

Option D looks like it's trying to do some sort of black magic. I'm going to have to go with Option C, it's the only one that doesn't make me feel like I'm about to summon a demon.

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Katy

8 months ago

Hold on, are we sure we're not just supposed to stare at the code and try to will the answer into existence? I'm going with Option A, it's the shortest so it must be the best.

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Vallie

8 months ago

Hmm, I'm not sure. Option D seems to have the most complex syntax, so it must be the right answer, right? Just kidding, I think Option B is the way to go.

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