Trainscg works in R2014b but not in R2015b and R2016a
1 回表示 (過去 30 日間)
古いコメントを表示
I have been working on the MNIST digit recognition problem and was using "Trainscg" to train my networks. I can get around 90% and maybe 400 epochs in R2014b. When I came back from vacation my Matlab was updated to 2016a and the exact same code now gets 20% accuracy and meets the gradient target in 9 epochs. I unistalled the updates, but want to know WHY this happened so I can fix the problem. Thanks!
0 件のコメント
回答 (1 件)
Luigi Faustini
2018 年 1 月 26 日
Did they ever help you? I ran in to a similar issue where (Matlab2017) I was training a net with trainlm and getting excellent results, then I switched over to trainscg (because I had to -- I waned to use a GPU to speed things up) and the results were very poor, errors went from .003 (typical) to .9 I tried tweaking all of the parameters, with no improvements. It seems like either trainscg is just a crappy algorithm -- or it is broken.
参考
カテゴリ
Help Center および File Exchange で Deep Learning Toolbox 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!