aksnzhy / xlearn

High performance, easy-to-use, and scalable machine learning (ML) package, including linear model (LR), factorization machines (FM), and field-aware factorization machines (FFM) for Python and CLI interface.
https://xlearn-doc.readthedocs.io/en/latest/index.html
Apache License 2.0
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question about feature importance #268

Open fly12357 opened 5 years ago

fly12357 commented 5 years ago

I train a FM model on my own data, and the final test auc is 71.4%. Then, I use the linear weight dumps from the trained FM model to check the importance of my handcraft feature. But, I found that some feature about the items id which are not very "hot" on online statistic show very big weight. Can you give me some advice about this problem?