A co-training framework for searching XML documents

In this paper, we study the use of XML tagged keywords (or simply key-tags) to search an XML fragment in a collection of XML documents. We present techniques that are able to employ users’ evaluations as feedback and then to generate an adaptive ranked list of XML fragments as the search results. First, we extend the vector space model as a basis to search XML fragments. The model examines the relevance between the imposed key-tags and identified fragments in XML documents, and determines the ranked result as an output. Second, in order to deal with the diversified nature of XML documents, we present four XML Rankers (XRs), which have different strengths in terms of similarity, granularity, and ranking features. The XRs are specially tailored to diversified XML documents. We then evaluate the XML search effectiveness and quality for each tailored XR and propose a Meta-XML Ranker (MXR) comprising the four XRs. The MXR is trained via a machine learning training scheme, which we te...

• Type: Journal
• Year: 2007
• Where: IS
• Authors: Wilfred Ng, Ho Lam Lau
• Keywords: Adaptive Ranked List, IS 2007, IS 2008, XML Documents, XML Fragment