Abstract
English academic writing is not easy for non-native researchers. They often refer to lexica of phrases on English research papers to know useful expressions in academic writing. However, lexica on sales do not have enough amount of expressions. Therefore, we propose a method for automatically extracting useful expressions from English research papers. We found four characteristics of the expressions by analyzing the existing lexicon of phrases on English research papers. The expressions are extracted from research papers based on statistical and syntactic information. In our experiment using 1,232 research papers, our proposed method achieved 57.5% in precision and 51.9% in recall. The f-measure was higher than the baselines, and therefore, we confirmed the feasibility of our method.
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