💳 This Week on Zindi: CV vs LB

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josh_amayo

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CV vs LB

Data · 3 Jan 2025, 16:03 · 7

Are people still having disparity between LB and CV? My CV has gone up to 0.91 but lb score still plateau-ing at 0.68. Seen many people break the 0.7 mark so curious how people got over this disparity

Discussion 7 answers

preciousgift

Data Science Nigeria

Experiencing the same here.

3 Jan 2025, 17:38

Upvotes 1

BanterGent96

Wits University

2 theories:

1. Some of the people who have lb scores over 0.7 just have models that are highly overfit and their private scores will be lower

2. They genuinely have better models and found a clever way to account for the differences between the distributions of Train.csv and Test.csv as well as the imbalance in the data

3 Jan 2025, 18:08

Upvotes 2