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次へ: Semantic-VSM 上へ: Semantic-Vector Space Model 戻る: (1) Meanings of Sentence

(2) Semantic Similarity of Documents

The semantic similarity $sim(D_i,D_j)$ between two documents, $D_i$ and $D_j$, is defined by the inner product of the specific vector $V_i$ and $V_j$.
\begin{displaymath} sim(D_i,D_j)=V_i \cdot V_j \end{displaymath} (2)

This relation is used for clustering documents and information retrieval.


Jin'ichi Murakami 平成13年10月5日