Reference:

Jaakko J. Väyrynen, Timo Honkela, and Aapo Hyvärinen. Independent component analysis of word contexts and comparison with traditional categories. In Jarno M. A. Tanskanen, editor, Proceedings of the 6th Nordic Signal Processing Symposium (NORSIG 2004), number 46 in Helsinki University of Technology Signal Processing Laboratory Report Series, pages 300–303. Helsinki University of Technology, Signal Processing Laboratory, June 2004.

Suggested BibTeX entry:

@inproceedings{Vayrynen04NORSIG2004,
    author = {Jaakko J. V{\"{a}}yrynen and Timo Honkela and Aapo Hyv{\"{a}}rinen},
    booktitle = {Proceedings of the 6th Nordic Signal Processing Symposium (NORSIG 2004)},
    editor = {Jarno M. A. Tanskanen},
    month = {June},
    number = {46},
    pages = {300--303},
    publisher = {Helsinki University of Technology, Signal Processing Laboratory},
    series = {Helsinki University of Technology Signal Processing Laboratory Report Series},
    title = {Independent Component Analysis of Word Contexts and Comparison with Traditional Categories},
    year = {2004},
}