Misclassification cost in neural networks

3 ビュー (過去 30 日間)
Ali Meghdadi
Ali Meghdadi 2020 年 4 月 22 日
コメント済み: M J 2021 年 2 月 16 日
I was wondeing if it is possible to put weights on false positive and false negatives, the same as the misclassification cost array in random forest and SVM?
Explaining what I mean by misclassification cost: Misclassification cost, specified as a numeric square matrix, where Cost(i,j) is the cost of classifying a point into class j if its true class is i. For two-class learning, if you specify the cost matrix ? (see Cost), then the software updates the class prior probabilities p (see Prior) to pc by incorporating the penalties described in ?. (at https://au.mathworks.com/help/stats/classificationsvm.html)
Defining C in a matrix like this (C=[0 alpha beta 0]) you will be able to put weights on FP and FN by varying beta and alpha. Is this also possible in neural nets?
  1 件のコメント
M J
M J 2021 年 2 月 16 日
Hi, did you figure it out? I'm currently facing the same problem. Thanks!

サインインしてコメントする。

回答 (0 件)

カテゴリ

Help Center および File ExchangeSequence and Numeric Feature Data Workflows についてさらに検索

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by