The Research Of Skyline Query Processing In The Literature Searching And Ranking

With the surge in electronic information, literature search tool in the academic research process will play an increasingly important role. By means of literature search tools, researchers can quickly find the required information. However, with the deepening of the user needs to retrieve the current keyword-based information retrieval increasingly obvious limitations:(1) literature search tool will return a large number of irrelevant documents information;(2) a large number of reference literature not prominent in the sort;(3) search results is difficult to reflect the importance and relevance of literatures;(4) the lack of literature information on multi-dimensional trade-off optimization. Therefore, this article will study the literature searching and ranking model which is based on Skyline query processing from the perspective of multi-dimensional optimization search.First, the paper analyzes the document retrieval system research situation, and makes a detailed analysis of the literature search behavior from factors to utilization, and then summarized users multi-dimensional expect for the literature search results, including correlation, cites, post time, the frequency of download, providing a clear needs analysis for the Skyline literature search model design.Secondly, this article based on user needs of retrieval, will be directly applied Skyline query processing to literature search, proposed Skyline iterative sorting method, and analyze the advantages and disadvantages of the method; then, with the basic principles of Skyline queries and Citation Analysis the theory, proposed a new measure of the value of literature reference index--Skyline Relevance as the basis for sorting literature, focusing on three angles from citation path, citation level, the relationship matrix to investigate the measurement method for Skyline Relevance.Finally, with Skyline query processing and Skyline Relevance, to build Skyline literature searching and ranking model, elaborated on the various modules of the model function and retrieval processes, focusing on the differences of Skyline model and other literature search model, and through a experiment to test and verify the feasibility and effectiveness of the Skyline model, providing a new research idea for the research of literature search.