S M Shafi


The paper introduces the navigation of digital libraries .and reviews most prominent problems confronting retrieval engine like multiple content sources, distributed documents problem. multiple language problem, inaccurate queries problem and availability of classification schemes problem etc it traces various solutions in terms of technologies developed for search engine retrieval like Mew data extraction by various methods viz automatic extraction of words, structural analysis, normalization of existing Meta data, using external reference data and citation analysis etc. It explores equal ranking elaborating test runs with representative queries etc besides dealing with proper treatment of queries which covers orthographic, morphological and vocabulary variation . Discussion on data aggregation resorting to distributed documents is given along with a glimpse of future direction.

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