When I generate a Matlab function of a neural network, it comes with the normalization/re-normalization constants. Will these constants affect the neural network performance on another data set? Why?
조회 수: 2 (최근 30일)
이전 댓글 표시
The normalization/re-normalization (for example, mapping the data to [-1,1] or [0,1]) is built for the training data. What does make the normalization constants work to another data set? And if the new data have large values than the training data?
댓글 수: 0
채택된 답변
Greg Heath
2015년 11월 15일
Not if both datasets have similar summary statistics (e.g., mean/std for mapstd or min/max for mapminmax).
That is why sometimes it is better to explicitly normalize before training and explicitly denormalize after training.
Hope this helps.
Thank you for formally accepting my answer
Gregg
댓글 수: 0
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Deep Learning Toolbox에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!