2020 Volume 30 Issue 3 Pages 328-348
In this research, we clarified problems in classifying citations of academic literature by classi fication experiments. After setting up classification categories from the perspectives of significa nce, evaluation, functions, and positions, we assigned those categories to 1,103 citations extrac ted from 30 medical articles. Regarding the perspective of significance, a certain range of sent ences was required for judgment. Regarding the perspective of evaluation, though it was possi ble to judge whether citations (including indirect ones) are positive or negative, the results de pended on the range of sentences to be considered. Regarding the perspective of functions, it was difficult to ensure exclusivity between categories. In addition, it was found that, while in some cases a wider range of sentences improved the accuracy of judgment, in other cases it could not be judged regardless of the range.