Geographic and textual data fusion in Forostar

Overell, Simon; Rae, Adam and Rüger, Stefan (2009). Geographic and textual data fusion in Forostar. In: Evaluating Systems for Multilingual and Multimodal Information Access, 17-19 Sep 2008, Aarhus, Denmark, Springer LNCS 5706, pp. 838–842.



In this paper we provide some analysis of data fusion techniques employed at GeoCLEF 2008 to merge textual and geographic relevance. These methods are compared to our own experiments, where using our GIR system, Forostar, we show that an aggressive filter-based data fusion method can outperform a more sophisticated penalisation method.

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