Optimizing Pattern Queries for Web Access Logs

  • Authors:
  • Tadeusz Morzy;Marek Wojciechowski;Maciej Zakrzewicz

  • Affiliations:
  • -;-;-

  • Venue:
  • ADBIS '01 Proceedings of the 5th East European Conference on Advances in Databases and Information Systems
  • Year:
  • 2001

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Abstract

Web access logs, usually stored in relational databases, are commonly used for various data mining and data analysis tasks. The tasks typically consist in searching the web access logs for event sequences that support a given sequential pattern. For large data volumes, this type of searching is extremely time consuming and is not well optimized by traditional indexing techniques. In this paper we present a new index structure to optimize pattern search queries on web access logs. We focus on its physical structure, maintenance and performance issues.