Partial information classes

  • Authors:
  • Arfst Nickelsen;Till Tantau

  • Affiliations:
  • Technical University of Berlin, Berlin, Germany;Technical University of Berlin, Berlin, Germany

  • Venue:
  • ACM SIGACT News
  • Year:
  • 2003

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Abstract

In this survey we present partial information classes, which have been studied under different names and in different contexts in the literature. They are defined in terms of partial information algorithms. Such algorithms take a word tuple as input and yield a small set of possibilities for its characteristic string as output. We define a unified framework for the study of partial information classes and show how previous notions fit into the framework. The framework allows us to study the relationship of a large variety of partial information classes in a uniform way. We survey how partial information classes are related to other complexity theoretic notions like advice classes, lowness, bi-immunity, NP-completeness, and decidability.