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  • August 6, 2010 12:06 pm
  • make the reddim  as shared library
  • find more mapping functions, these library doesn’t look good. search keyword: dimensional reduction
  • label the points

wordspace visualization

  • July 26, 2010 3:29 pm

the wordspace visualization can extend the application from qwtplot3d

qwt might be also needed

some lib might be also needed

another mapping function which might be useful to him


export LD_LIBRARY_PATH=”/home/zekai/addonlib/qwtplot3d/lib/”

a simple comprising method is:
write a class as the ripple mesh, inherited from the Function class
build a matrix according to the reduced dimensional matrix, set z  for no-exist point as 0, and then applying

dimensional reduction library

convert to svm light format

mapping function

compiled and runable

but the way they represent matrix is really weired, they kinda convert a matrix to a one long one dimensional array

add the function to label the points, but doesn’t work and i dont know why

about the labeling problem:

use opengl extension


使用sammon projection,然后把Eclucic distance改成edit distance for string,这样就能显示两个word的距离

我使用两维vector 的方式不正确,不能用push_back的方法直接把对象压入,因为对象已经不存在