Using Lexical Patterns for Extracting Hyponyms from the Web

  • Rosa M. Ortega-Mendoza
  • Luis Villaseñor-Pineda
  • Manuel Montes-y-Gómez
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4827)


This paper describes a method for extracting hyponyms from free text. In particular it explores two main matters. On the one hand, the possibility of reaching favorable results using only lexical extraction patterns. On the other hand, the usefulness of measuring the instance’s confidences based on the pattern’s confidences, and vice versa. Experimental results are encouraging because they show that the proposed method can be a practical high-precision approach for extracting hyponyms for a given set of concepts.


Free Text Pattern Discovery Extraction Pattern Pointwise Mutual Information Base Vocabulary 
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 2007

Authors and Affiliations

  • Rosa M. Ortega-Mendoza
    • 1
  • Luis Villaseñor-Pineda
    • 1
  • Manuel Montes-y-Gómez
    • 1
  1. 1.Laboratorio de Tecnologías del Lenguaje, Instituto Nacional de Astrofísica, Óptica y ElectrónicaMéxico

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