XML Information Retrieval is approach to identify the appropriate answer granularity and controlling to elements overlap. Recently, the demand for integrating Full Text Search and relational search has increased dramatically. The RDBMS implementation is generally much worse in the performance than the IR engine implementation. Especially, when a query is processed in the RDBMS, the number of join operation increases in proportion to the number of relationships in the query. In order to solve these problems, we propose in this paper a novel approach to extend the inverted index for support query processing, namely Absolute Document XPath Indexing that allows supporting and reducing the length of time on Score Sharing scheme. In terms of processing time, our system required an average of one second per topic on INEX-IEEE and an average of ten seconds per topic on INEX-Wiki better than GPX system.
In this paper, we report experimental results of our approach using BM25E model for retrieval large-scale XML collection, to improve the effectiveness of XML Retrieval. This model is commonly used in the information retrieval community. We propose new algorithm using Score Sharing that allow to assign parent score by sharing score from leaf node to their parents by a Top-Down Scheme approach. In order to improve efficiency on response time, The Score Sharing algorithm processing time on 10,000 leaf nodes is around 0.135 ms. per topic after getting the result list from Zettair. The Zettair is able to process on average time per topic using less than 1 second then the processing time is up to 1 second per topic and our experiment show that the BM25E with Score Sharing improve iP[0.10] by 24.40% and MAiP by 31.89% over the original BM25E. In addition, our algorithm able to handle both elements level and document level by only setting parameter.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.