title: U-Compare bio-event meta-service: compatible BioNLP event extraction services.
abstract: BACKGROUND
  Bio-molecular event extraction from literature is recognized as an important task of bio text mining and, as such, many relevant systems have been developed and made available during the last decade. While such systems provide useful services individually, there is a need for a meta-service to enable comparison and ensemble of such services, offering optimal solutions for various purposes.
  
  
  RESULTS
  We have integrated nine event extraction systems in the U-Compare framework, making them intercompatible and interoperable with other U-Compare components. The U-Compare event meta-service provides various meta-level features for comparison and ensemble of multiple event extraction systems. Experimental results show that the performance improvements achieved by the ensemble are significant.
  
  
  CONCLUSIONS
  While individual event extraction systems themselves provide useful features for bio text mining, the U-Compare meta-service is expected to improve the accessibility to the individual systems, and to enable meta-level uses over multiple event extraction systems such as comparison and ensemble.
authors.affiliation: Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan. kano@nii.ac.jp
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Kano
authors.forename: Jari
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authors.lastname: Ginter
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authors.forename: Udo
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authors.forename: K Bretonnel
authors.initials: KB
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authors.forename: Karin
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authors.lastname: Roeder
authors.forename: Lawrence E
authors.initials: LE
authors.lastname: Hunter
authors.forename: Halil
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authors.lastname: Kilicoglu
authors.forename: Sabine
authors.initials: S
authors.lastname: Bergler
authors.forename: Sofie
authors.initials: S
authors.lastname: Van Landeghem
authors.forename: Thomas
authors.initials: T
authors.lastname: Van Parys
authors.forename: Yves
authors.initials: Y
authors.lastname: Van de Peer
authors.forename: Makoto
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authors.lastname: Miwa
authors.forename: Sophia
authors.initials: S
authors.lastname: Ananiadou
authors.forename: Mariana
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authors.lastname: Neves
authors.forename: Alberto
authors.initials: A
authors.lastname: Pascual-Montano
authors.forename: Arzucan
authors.initials: A
authors.lastname: Özgür
authors.forename: Dragomir R
authors.initials: DR
authors.lastname: Radev
authors.forename: Sebastian
authors.initials: S
authors.lastname: Riedel
authors.forename: Rune
authors.initials: R
authors.lastname: Sætre
authors.forename: Hong-Woo
authors.initials: HW
authors.lastname: Chun
authors.forename: Jin-Dong
authors.initials: JD
authors.lastname: Kim
authors.forename: Sampo
authors.initials: S
authors.lastname: Pyysalo
authors.forename: Tomoko
authors.initials: T
authors.lastname: Ohta
authors.forename: Jun'ichi
authors.initials: J
authors.lastname: Tsujii
mesh_terms: D003199:Computer Systems; D057225:Data Mining; D010506:Periodicals as Topic; D012984:Software