言い回し表現に基づく係り受け解析によるプレスリリースからの製品特徴キーワード抽出方式

摘要

We propose an extraction method of product features from press releases of companies for competitor analysis. In press releases of companies, product features are described with characteristic expressions (we call "description patterns"). Prom this view point, when a description pattern is input, our system extracts features included in the pattern. Additionally, in order to extract more product features by less input patterns, our system generates similar patterns of input patterns as "derivation patterns" automatically and extracts product features using derivation patterns. Through application to the press releases of ten companies, it is confirmed that the accuracy of the extracted features are sufficient.%社会情勢が絶え間なく変化し，消費者の噂好が多様化する事業環境のもとで企業が競争力を持つには，競合分析を行う必要がある。競合分析では，製品の特徴，市場シェア，戦略の方向性について分析を行う。特に製品特徴の分析に関しては，競合他社が製品に関するプレスリリースをWeb上で発行するようになり，その情報の入手は容易になった。