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Structuring Opinions by Relative Characteristics for User-Opinion Aggregation

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  • 意見集約における相対的特徴を考慮した評価視点の構造化
  • イケン シュウヤク ニ オケル ソウタイテキ トクチョウ オ コウリョ シタ ヒョウカ シテン ノ コウゾウカ

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Abstract

We propose a scoring function for aspect ranking that facilitates user-opinion aggregation. The function uses the log-likelihood ratio to capture relative characteristics between opinions. Review documents contain many variant expressions because they are written by different web users. We also propose a re-ranking method that identifies variant expressions having the same meaning by using several clustering techniques. The experimental results indicate that the proposed scoring function and the re-ranking method are more effective than baseline methods.

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