Retrospective Scanning of Events Over Time

  • Joseph Glaz
  • Joseph Naus
  • Sylvan Wallenstein
Part of the Springer Series in Statistics book series (SSS)


Researchers studying events occurring over a period of time may observe what appears to be a large cluster of events all occurring within a short period of time. The researchers ask whether the cluster is unusual in the sense that it is unlikely to have arisen by chance if events were distributed independently and completely at random over time. The relative frequency of large clusters that occur purely by chance is one tool to answer such questions.


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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Joseph Glaz
    • 1
  • Joseph Naus
    • 2
  • Sylvan Wallenstein
    • 3
  1. 1.Department of Statistics The College of Liberal Arts and SciencesUniversity of ConnecticutStorrsUSA
  2. 2.Department of Statistics RutgersThe State University of New JerseyPiscatawayUSA
  3. 3.Department of Biomathematical SciencesMount Sinai School of MedicineNew YorkUSA

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