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Utilizing Mind-Maps for Information Retrieval and User Modelling Joeran Beel, Stefan Langer, Marcel Genzmehr, Bela Gipp 1www.docear.org Doc The Academic Literature Suite

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1. Introduction to mind-maps 2. Ideas for utilizing mind-maps beyond their original purpose 3. Prototype for mind-map-based user modeling 2www.docear.org Doc The Academic Literature Suite

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3www.docear.org Doc The Academic Literature Suite

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4www.docear.org Doc The Academic Literature Suite

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1. Introduction to Mind-Maps 5www.docear.org Doc The Academic Literature Suite

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6www.docear.org Doc The Academic Literature Suite

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7www.docear.org Doc The Academic Literature Suite

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8www.docear.org Doc The Academic Literature Suite

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10www.docear.org Doc The Academic Literature Suite

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11www.docear.org Doc The Academic Literature Suite

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12www.docear.org Doc The Academic Literature Suite

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13www.docear.org Doc The Academic Literature Suite

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14www.docear.org Doc The Academic Literature Suite

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15www.docear.org Doc The Academic Literature Suite

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How to utilize mind-maps beyond their original purpose? 17www.docear.org Doc The Academic Literature Suite

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2. Ideas for Mind-Map based IR Applications And An Analysis of the Feasibility 18www.docear.org Doc The Academic Literature Suite

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Search Engines for Mind-Maps Document Indexing / Anchor Text Analysis Document Relatedness Document Summarization Impact Analysis Trend Analysis Semantic Analysis User Modelling 19www.docear.org Doc The Academic Literature Suite

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Anchor Text Analysis / Website Indexing Document Relatedness / Distance Analysis Semantic Analysis User Modeling 20www.docear.org Doc The Academic Literature Suite

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Dozens of mind-mapping tools 2 million active mind-mapping users 5 million new mind-maps every year 300,000+ public mind-maps 21www.docear.org Doc The Academic Literature Suite

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Analysis of 19,379 mind-maps Number of nodes per mind-map Average = a few dozen Maximum = a few thousand 63.88% contain no links, Those who contain links, contain typically only few Ideas requiring links are less feasible Text-based ideas are feasible 23www.docear.org Doc The Academic Literature Suite

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Up to 61% acceptance for user modeling and recommendations Around 10% acceptance for other ideas User modeling is the most feasible idea 24www.docear.org Doc The Academic Literature Suite

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3. User Modeling Prototype A Research Paper Recommender System 25www.docear.org Doc The Academic Literature Suite

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? 26www.docear.org Doc The Academic Literature Suite

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Recommend books that we assume to be relevant for researchers Content Based Filtering Terms of the last modified node (Recs on each modification) : Terms of the last modified node (Recs every few days) : All terms of the last modified mind-map : All terms of all mind-maps 27www.docear.org Doc The Academic Literature Suite

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28www.docear.org Doc The Academic Literature Suite

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Strong differences depending on the approach Overall, reasonable CTR, despite the trivial approaches 29www.docear.org Doc The Academic Literature Suite

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Strong differences depending on the specific parameters (for the All Mind- Maps approach) 30www.docear.org Doc The Academic Literature Suite

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http://www.docear.org http://www.docear.org/docear/our-publications/ 31www.docear.org Doc The Academic Literature Suite