Spotting Topics with the Singular Value Decomposition

  • Charles Nicholas
  • Randall Dahlberg
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1481)


The singular value decomposition, or SVD, has been studied in the past as a tool for detecting and understanding patterns in a collection of documents. We show how the matrices produced by the SVD calculation can be interpreted, allowing us to spot patterns of characters that indicate particular topics in a corpus. A test collection, consisting of two days of AP newswire traffic, is used as a running example.


Singular Vector Term Vector Document Vector Test Corpus Negative Entry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Charles Nicholas
    • 1
  • Randall Dahlberg
    • 2
  1. 1.University of Maryland Baltimore CountyBaltimore
  2. 2.U.S. Department of DefenseUSA

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