@MISC\{IMM2006-04984, author = "F. {\AA}. Nielsen", title = "Text and spatial data mining", year = "2006", month = "sep", keywords = "text mining, neuroinformatics, non-negative matrix factorization, voxelization", publisher = "Informatics and Mathematical Modelling, Technical University of Denmark", address = "Richard Petersens Plads, Building 321, {DK-}2800 Kgs. Lyngby", url = "http://www2.compute.dtu.dk/pubdb/pubs/4984-full.html" }