@Article{Pessiot09,
  title =	{Improving Document Clustering in a Learned Concept Space}
  author =	{Jean-François Pessiot, Young-Min Kim, Massih-Reza Amini and Patrick Gallinari},
  journal =	{Information Processing \& Management},
  volume =    {46},
  number =    {2},
  pages =     {180-192}, 
  year = 	{2010}
}