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SUMMARY:Annotation of Chemical Named Entities - Peter Corbett - University
  of Cambridge
DTSTART:20070618T103000Z
DTEND:20070618T113000Z
UID:TALK7601@talks.cam.ac.uk
CONTACT:NLIP Seminars
DESCRIPTION:We describe the annotation of chemical named entities in scien
 tific text. A set of annotation guidelines defines 5 types of named entiti
 es\, and provides instructions for the resolution of special cases. A corp
 us of full-text chemistry papers was annotated\, with an inter-annotator a
 greement F score of 93%. An investigation of named entity recognition usin
 g LingPipe suggests that F scores of 63% are possible without customisatio
 n\, and scores of 74% are possible with the addition of custom tokenisatio
 n and the use of dictionaries.
LOCATION:SW01 Computer Laboratory
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