Random Indexing using Statistical Weight Functions James Gorman author James R Curran author 2006-07 text Proceedings of the 2006 Conference on Empirical Methods in Natural Language Processing Dan Jurafsky editor Eric Gaussier editor Association for Computational Linguistics Sydney, Australia conference publication gorman-curran-2006-random https://aclanthology.org/W06-1654/ 2006-07 457 464