リスク表現の自動獲得によるプロジェクト計画書からのリスク検出方式

概要

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This paper addresses a problem to identify risks in project plan documents written by project managers. Because some project managers express risks without negative words, the risk identification method by negative expressions is not sufficient to identify them. In this paper, we propose a risk identification method by automatic acquisition of risk expressions. The proposed method acquires the risk expressions from existing project plan documents based on the frequency of appearance in the sentences indicating risks. After the acquisition of the risk expressions, the proposed method extracts sentences including the expressions. From the extracted sentence, the proposed method identifies risks by comparing the sentence to each item of the checklist. In particular, the proposed method identifies the items corresponding to each extracted sentence by using related words. The experimental result shows that the proposed method identifies 81% of risks in the checklist and 45% of risks outside of the checklist on average.