アナリストレポートからのアナリスト予想根拠情報の抽出と極性付与

抄録

In this paper, we proposed a method for supporting investors. Our method extracts basis information on analyst's forecasts from analyst reports and assigns polarity to the analyst reports. Analyst reports which are written about a company's performance or profitability by securities analysts are useful for investment but investors can only read it a little because many reports are published. Therefore, a system which judges investing by an artificial intelligence technique is required. By giving polarity to the analyst reports, the proposed method catches a slight change in performance. This ability of method is useful to judge whether investors need to read analyst reports carefully.