テキストマイニングを活用したアンケートにおける自由回答の分析と生活環境評価

摘要

In this paper, the contents of the free answer in the questionnaire survey were analyzed by Text Mining, the residents's evaluation of living environment and the characteristics were grasped by the Correspondence Analysis and Cluster Analysis. And problems and possibility of application were considered in the questionnaire survey. Firstly, the free answers were sorted by seven categories, which are "Negative Evaluation", "Demand", "Negative Evaluation & Demand" and so on. And, the appearance frequency of words in the free answer were grasped. Next, using "Negative Evaluation", "Demand" and "Negative Evaluation & Demand" on each category, the relationship with areas and appearance words were grasped by Correspondence Analysis, and the appearance patterns of the word were classified by Cluster Analysis. As a result, the residents's problems and demands in residence area were grasped, and a problem was arranged when a free answer will be analyzed.%アンケート調査は計画研究において，住民ニーズや意向を把握する上で重要なツールである。したがって，アンケート調査票は，調査主体が目的に沿った形で設問が設定・作成され，その結果は例えば計画策定や実施計画に反映させる根拠となる。