[KongchangAI]
Unverified50% confidenceBenchmarkExact time

On a dataset with 5,000 random features and random labels, if the top 20 features are first selected on the full data and then 5-fold cross-validation is performed, accuracy can reach 85% (87.7% averaged over 20 random seeds); after moving feature selection inside the Pipeline, accuracy falls back to 48% (50.0% average).

1
Sources
50%
Confidence
Long-term
Relevance
11/6/2026
First Seen

Sources

Related Entities

Related Claims

Cite This Claim

Stable URI
https://kongchang.com/claim/1142635
API
curl https://kongchang.com/api/v1/knowledge/claims/1142635
MCP
get_claim(id=1142635)