 Human evaluation of Kea, an automatic keyphrasing system |
Jones, S. R., Paynter, G. W. (2001) Proc First ACM/IEEE Joint Conference on Digital Libraries (JCDL'01), Roanoke, Virginia, 148-156. ACM Press, New York. |
This paper describes an evaluation of the Kea automatic keyphrase extraction algorithm. Tools that automatically identify keyphrases anre desirable because document keyphrases have numerous applications in digital library systems, but are costly and time consuming to manually assign. Keyphrase extraction algorithms are usually evaluated by comparison to author-specified keywords, but this methodology has several well-known shortcomings. The results presented in this paper are based on subjective evaluations of the quality and appropriateness of keyphrases by human assessors, and make a number of contributions. First, they validate previous evaluations of Kea that rely on author keywords. Secoond, they show Keau2019s performance is comparable to that of similar systems that have been evaluated by human assessors. Finally, they justifuly the use of author keyphrases as a performance metric by showing that authors generally choose good keywords. |