This volume contains revised versions of 35 papers presented during the 15th Annual Con ference of the Gesellschaft fiir Klassifikation (GfKl), the German Classification Society. The conference took place at the University of Salzburg (Austria) in February 1991; the local organizer was Prof. Hans Goebl, Director of the Institute for Romance Philology at Salzburg. The scientific program of the conference included about 100 plenary or contributed papers, a lot of software presentations and special (tutorial) courses. Researchers and practitioners interested in data analysis and clustering methods, information sciences and database techniques, or applications in archaeology, biology, criminology, geography, lin guistics, and medicine had the opportunity to discuss recent developments and to establish cross-disciplinary cooperation in these fields. The conference owed much to its sponsors EMCO Maier GmbH, Hallein, Osterreichisches Bundesministerium fiir Wissenschaft und Forschung, Wien, Osterreichische Forschungsgemeinschaft, Wien, Salzburger Landesregierung, Stadt Salzburg, Multimedia 2000, Salzburg, who helped in many ways. Their generous support is gratefully acknowledged. The volume consists of the three parts - Data Analysis, Classification, - Data Modeling, Knowledge Processing, - Applications, Special Subjects. Arrangement of the papers into the respective parts was supported by the keywords assigned to each paper by authors and referees.

Inhalt
1 Data Analysis, Classification.- Parameter Extrapolation in Marketing Research.- Application of Pattern Recognition and Fuzzy Sets to the Interpretation of Chromatograms.- A Clustering Technique for Maximizing ø-Divergence, Noncentrality and Discriminating Power.- Structural Analysis in Input-Output Tables.- The Precision of Bayesian Single Case Classification.- Bounds for the Tail Probabilities of the Linear Ratchet Scan Statistic.- Multidimensional Scaling as a Framework for Correspondence Analysis and its Extensions.- Conception of a Package for Typology Making and Analyzing.- Exploratory-Graphical Methods for Time Series Analysis.- Clustering in Metric Spaces: Some Existence and Continuity Results for k-Centers.- Classification and Clustering in Spatial and Image Data.- The MVL (Missing Values Linkage) Approach for Hierarchical Classification when Data are Incomplete.- Formal Concept Analysis of Data With Tolerances.- Towards a Structure Theory of Ordinal Data.- The Jukes-Cantor Transformation and Additivity of Estimated Genetic Distances.- 2 Data Modeling, Knowledge Processing.- Decision Support for Retrieval From Fact Databases.- Implementation of a Parallel Deductive Database.- The WINHEDA Prototype: Knowledge-Based Access to Distributed Heterogeneous Knowledge Sources.- Knowledge Representation in a System for Marketing Research.- Data Management in a Knowledge-Based System for Marketing Research.- Challenges for Information Systems: Representation, Modeling, and Metaknowledge.- Enterprise Modeling: Basis for Information Systems Design.- Massive Parallel Database Applications in Multiprocessor Systems.- Improving Access to Legal Information in Document Databases Exploiting Techniques of Knowledge-Based Systems.- 3 Applications, Special Subjects.- Non-SpatialAnalysis of Genetic Kinship in Skeletal Remains.- Some Common Problems in the Use of Classification Procedures in Social Science.- Visualization in the Analysis Cycle of Observational Data.- Stylistic Analyses in Archaeology by Means of Correspondence Analysis.- Description and Classification of Respiratory Patterns with Multivariate Explorative Statistics.- Structure and Phylogenetic Information of Large Subunit Ribosomal RNA.- Hypermedia-Encyclopedias.- The Multilayer Perceptron for Discriminant Analysis: Two Examples.- RELATAN Computer-aided Analysis of Texts based on the Method RELATEX.- Phylogenetic Studies by Comparative Sequence Analysis of Evolutionary Conserved Macromolecules.- Physical and Linguistic Facts.