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DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.
Digital libraries are libraries in which collections are stored in a digital format (the metadata at least). Digital libraries are now being made publicly available. However, building good user interfaces to query heterogeneous libraries requires to have a good knowledge on the type of available information (e.g. which attributes are useful for filtering). In this project, we harvest (using the Z39.50 and OAI-PMH protocol) and analyze (in terms of useful attributes for querying) four important digital libraries: Nebis (five million items), Infoscience (sixty thousand items), CiteSeer (seven hundred thousand items) and The European Library (one and a half million items).