Semantic Based XML Context Driven Search And Retrieval System

we present in this paper, a context-driven search engine called XCD Search for answering XML Keyword-based queries as well as Loosely Structured queries, using a stack-based sort-merge algorithm. Most current research is focused on building relationships between data elements based solely on their labels and proximity to one another, while overlooking the contexts of the elements, which may lead to erroneous results. Since a data element is generally a characteristic of its parent, its context is determined by its parent. We observe that we could treat each set of elements consisting of a parent and its children data elements as one unified entity, and then use a stack-based sort-merge algorithm employing context-driven search techniques for determining the relationships between the different unified entities. We evaluated XCD Search experimentally and compared it with other search engines. The results showed marked improvement .Research works propose techniques for XML Loosely Structured querying, where the user provides search terms consisting of label-keyword pairs. Computing the Lowest Common Ancestor (LCA) of elements containing keywords is the common denominator among these proposed techniques. Despite the success of the proposed search engines, they suffer recall and precision limitations. The reason is that they employ mechanisms for building relationships between data elements based solely on their labels and proximity to one another while overlooking the contexts of the elements. The context of a data element is determined by its parent, because a data element is generally a characteristic of its parent. We propose in this paper a search engine called XCD Search that avoids the pitfalls of noncontext driven search engines. This paper presents a data-centric approach to XML information retrieval which benefits from XML document structure and adapts traditional text-centric information retrieval techniques to deal with text content inside XML. Document. Narrower contexts could be separate XML elements or their combinations. Our setting assumes. KeywordsSearcht; XML;Contexte;Retrieval; LCA;Query.