An Approach for Measuring Similarity between XML Documents

With the widespread diffusion of semi-structured data in XML format, algorithms for mining information from XML documents are becoming increasingly important. So a similarity function is the key of a successful XML data management process. In this paper, we propose a new method to measure the similarity between XML documents by considering their structures and contents, which comprises three layer matching: element matching, path matching and document matching. The similarity of document´s structure is found by partial matching technique and that of document´s contents is found by taking into account of the syntactic information, semantic information and position of elements.