关于“運用 BigQuery ML 建立機器學習模型：挑戰實驗室”的评价

Srijan M. · 评论over 1 year之前

Srijan M. · 评论over 1 year之前

Christian O. · 评论over 1 year之前

Brian shahputera s. · 评论over 1 year之前

I had to use my head a little bit and I got a good feel of how I can use sql(BigQuery) to evaluate ML models on a dataset. I see that it can get very complex very fast. Thanks for keeping it simple. The lab has a nice UI and just the right amount of complexitity to test the system.

웅비 최. · 评论over 1 year之前

Kalman T. · 评论over 1 year之前

I found Task 4 of this lab to be misleading and frustrating. The instructions explicitly state that I need to "predict the average trip duration for all trips from the busiest bike sharing station in 2019 (based on the number of trips per station in 2019)." Based on these instructions, I wrote queries to: Calculate the busiest station in 2019 based on trip count Use that station to make predictions with the subscriber_type model Filter for Single Trip subscribers and 2019 data Calculate the average predicted duration However, the verification system would only accept a query that used a hardcoded station name '21st & Speedway @PCL', which is never mentioned anywhere in the instructions. This is problematic because: The instructions specifically tell us to base our solution on 2019 trip counts There's no indication we should use a pre-defined station The verification system contradicts the written instructions Students waste time trying to debug technically correct solutions A better approach would be to either: a) Update the instructions to specify using '21st & Speedway @PCL' if that's the required solution b) Or modify the verification system to accept solutions that correctly calculate and use the actual busiest station from 2019 data This discrepancy between instructions and verification criteria creates unnecessary confusion and doesn't reflect real-world data analysis practices where we would actually want to calculate the busiest station rather than assuming it.

Anshul K. · 评论over 1 year之前

Boone H. · 评论over 1 year之前

Mouwiya A. · 评论over 1 year之前

Shubham U. · 评论over 1 year之前

Francesca P. · 评论over 1 year之前

Terrell D L. · 评论over 1 year之前

Rohit K. · 评论over 1 year之前

Jeyaraj B. · 评论over 1 year之前

Miguel Angel H. · 评论over 1 year之前

Juyoung P. · 评论over 1 year之前

SARA L. · 评论over 1 year之前

The different revision of this that I just got is much better

Daniel M. · 评论over 1 year之前

impossible

Eduardo M. · 评论over 1 year之前

Rudrani .. · 评论over 1 year之前

Gregorio N. · 评论over 1 year之前

Iyad M. · 评论over 1 year之前

Gregorio N. · 评论over 1 year之前

Efran L. · 评论over 1 year之前

Ashique A. · 评论over 1 year之前