... to the size of the manual corpus. When we trained with that size of the automatic corpus, the performance was verylow compared to the performance of the manual cor-pus. The reason is that the ... the seeds and comparable tothat with the manual corpus.Moreover, the domain of the manual training corpus is same with that of the test corpus, i.e., news and novels, while the do-main of the ... verify the usefulness of the con-structed NE tagged corpus, we apply it to a learn-ing of NER system and compare the results with the manually tagged corpus.2 Automatic Acquisition of an NE...