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Recommender Systems using Pennant Diagrams in Digital Libraries

One way of visualizing the relatedness / distance between a given document and its recommendations are the so-called pennant diagrams. The aim of pennants is to provide the user with a graph showing the relatedness / distance between a given document and related documents. Co-citation but also co-occurrence analysis are established methods for finding related documents to a seed (for instance an author, a keyword, or a publication). 
In this paper we introduce a recommender system in the digital library sowiport2 using pennant diagrams which can be created from co-citation and/or co-occurrence analysis.
The NKOS workshop presentation includes a demonstration of pennants in sowiport and will
elaborate on practical questions in visualizing pennants and evaluating the utility of pennants for search.


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