Collective intelligence as a source for machine learning self-supervision

  • Authors:
  • Saulo D. S. Pedro;Estevam R. Hruschka, Jr.

  • Affiliations:
  • Federal University of Sao Carlos, UFSCar Sao Carlos, Brazil;Federal University of Sao Carlos, UFSCar Sao Carlos, Brazil

  • Venue:
  • Proceedings of the 4th International Workshop on Web Intelligence & Communities
  • Year:
  • 2012

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Abstract

The recent growth of virtual communities, social web and information sharing gives to information retrieval and machine learning systems a source of information referred as the "wisdom of crowds". In this work we show that this information could be used not only as a source of knowledge but as a way to bring intelligent systems closer to users by using their opinion as part of the knowledge acquisition/validation allowing self-supervision. For that we have implemented a validation system for the NELL (Never-Ending Language Learner) system using the question answering platform given by the Yahoo! Answers web community. Moreover, we focus in this paper, in the validation of first order rules induced by NELL using its Rule Learning (RL) algorithm. This paper presents the main motivations for using a QA forum instead of other web-based validation sources; describes the proposed approach with a "Macro QA"-based component named SS-Crowd (self-supervisor agent based on the wisdom of crowds) and brings and discusses the obtained results and how they can impact in a never-ending learning system like NELL in which self-supervision plays a crucial role.