Information Spaces using a Self-Organizing Map Daniel X. Pape Community Architectures for Network Information Systems University of Illinois at Urbana-Champaign Champaign, IL 61820 USA dpape@canis.uiuc.edu The Unified Matrix method [1], was developed by Alfred Ultsch to help determine natural clusters found by a self-organizing map [2]. The Interspace project at UIUC's CANIS laboratory uses data obtained by noun-phrase parsing of document sets, and Ultsch's U-Matrix method to visualize these so-called Information Spaces. Users of this visualization are able to navigate the space and browse the self-organized document collection. Keywords: Visualization, Information Space, Self-Organizing Map, Unified Matrix References: 1. Ultsch, A.: Self-organizing Neural Networks for Visualization and Classification, in O.Opitz, B. Lausen and R. Klar, (Eds.) Information and Classification, 1993. Berlin: Springer-Verlag, pp 307-313. 2. Kohonen, T. Self-Organizing Maps. Springer, Berlin, Heidelberg. (Second Extended Edition, 1997)