Page ranking algorithms in online digital libraries: A survey

With the exponential growth of academic digital libraries, ranking has become an extremely challenging task. When a researcher tries to retrieve relevant scientific literature, or perform a literature review based upon which to build their research, then ranking of search results of a user query plays an important role. Ranking provides an order so that users can easily navigate through the search results and find the desired information content. The various ranking algorithms have been proposed based upon many factors like citations to publications, content similarity, annotations etc. This paper presents an outline regarding various page ranking algorithms for academic digital libraries and highlights comparison of these algorithms in context of performance. This comparative analysis encourages for further required improvement in the related field.