Proceedings of the 4th International Conference on Language
Resources and Evaluation (LREC-2004), pp.1643-1646, May. 2004. Apr 2004
This paper describes the Patent Retrieval Task in the Fourth NTCIR Workshop,
and the test collections produced in this task. We perform the invalidity
search task, in which each participant group searches a patent collection for
the patents that can invalidate the demand in an existing claim. We also
perform the automatic patent map generation task, in which the patents
associated with a specif...
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