Modified Key-Sentence Extraction by RICOH at NTCIR-2 TSC.
Masayuki Kameda · NTCIR · 2001
We participated at NTCIR-2 in the TSC subtask A1 and A-2 using the output of QJR/KSE, a function of key-sentence extraction. Through examining the evaluation results and the human-extracted sentence data of the dryrun subtask A-1, we tried to make an experimental hybrid system incorporating the lead method into the original. In the formal run, the evaluation results of the hybrid system in the subtask A-1 and A-2 were in the top class among the twelve systems, much better than the results obtained in the dryrun. Especially in the F-measures of the 30% summarization rate, our submitted two systems got the top and second rankings. As a result of our participating in TSC, we have examined some internal scores to study the effectiveness of their results and had a chance to make some improvements and tuned up the hybrid system to increase its performance.