利用 t-SNE 高维数据的可视化

 

利用 t-SNE 高维数据的可视化 

 

  具体软件和教程见: http://lvdmaaten.github.io/tsne/

    简要介绍下用法:

  

  % Load data
  load ’mnist_train.mat’
  ind = randperm(size(train_X, 1));
  train_X = train_X(ind(1:5000),:);
  train_labels = train_labels(ind(1:5000));
  % Set parameters
  no_dims = 2;
  initial_dims = 50;
  perplexity = 30;


  % Run t􀀀SNE
  mappedX = tsne(train_X, [], no_dims, initial_dims, perplexity);
  % Plot results
  gscatter(mappedX(:,1), mappedX(:,2), train_labels);

 


  示意结果截图:  

 

 

posted @ 2016-06-01 19:02  AHU-WangXiao  阅读(2710)  评论(0编辑  收藏  举报