how to tell which feature is making trouble in classification for getting better accuracy?

1 次查看（过去 30 天）

Rashidul Alim Anik 2022-3-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1673879-how-to-tell-which-feature-is-making-trouble-in-classification-for-getting-better-accuracy

评论： Image Analyst 2022-3-18

I'm working with image processing.I've trained my data with classification learner app.but i could not get expected accuracy in classifier.so is there any way to understand which feature/column is creating trouble for better accuracy?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Image Analyst 2022-3-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1673879-how-to-tell-which-feature-is-making-trouble-in-classification-for-getting-better-accuracy#answer_920184

You can try doing PCA on it. It's possible some measurements are essentially just garbage/noise and not contributing anything worthwhile to the model. Just look at the amount of variance explained by the different PCs and which original variables have higher weights in the junk PC's than in the good PC's.