VN1 Forecasting - Accuracy Challenge Phase 1
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VN1 Forecasting - Accuracy Challenge Phase 1

Flieber, Syrup Tech, and SupChains Launch an AI-Driven Supply Chain Forecasting Competition

VN1 Forecasting - Accuracy Challenge
Machine Learning/AI
Enterprise
E-commerce/Retail
Total Prize 20,000
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davide burba

Posted 3 months ago DATATHON ORGANISER
SCORE GAP

Large gap between submission and internal validation.

Hi all, 

 

I'm observing a large gap between my internal time-based cross validation, and the score shown on leaderboard.

I was expecting to find some bug in my code leading to leakage but I couldn't find anything relevant.

 

Are you also experiencing the same?

Colaboratory Link

This comment will be made public once posted.

Hard to say since we know so little about the dataset, but one thing you could check is your holdout accuracy on the holiday period for 2022. The eval period is holiday season which is going to have very different sales patterns (presumably) than the previous parts of 2023.
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