Measuring the Structural Similarity of Semistructured Documents Using Entropy
Measuring the Structural Similarity of Semistructured Documents Using Entropy
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使用熵测量半结构化文档的结构相似性
DOI:
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发表时间:
2007
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通讯作者:
S. Helmer
中科院分区:
文献类型:
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作者:
S. Helmer
We propose a technique for measuring the structural similarity of semistructured documents based on entropy. After extracting the structural information from two documents we use either Ziv-Lempel encoding or Ziv-Merhav crossparsing to determine the entropy and consequently the similarity between the documents. To the best of our knowledge, this is the first true linear-time approach for evaluating structural similarity. In an experimental evaluation we demonstrate that the results of our algorithm in terms of clustering quality are on a par with or even better than existing approaches.