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    • Experimentation Keywords Geographic Information Retrieval (3)
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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 3 of 3 1 Berkeley2 at GeoCLEF: Cross-Language Geographic Information Retrieval of German and English Documents Fredric Gey; Vivien Petras In: http://www.clef-campaign.org/2005/working_notes/workingnotes2005/gey205.pdf (2005) Abstract: ABSTRACT: Berkeley group 2 participated in the GeoCLEF pilot track of CLEF 2005 by performing English and German monolingual geographic information retrieval and bilingual geographic information retrieval using English topics to retrieve German documents and vice versa. Our results were substantially above the medians for all categories. We found that major improvements for German retrieval derived from successful blind feedback (between 53 and 72 percent improvement in MAP depending upon the run type) rather than decompounding of German compound words. Manual expansion of geographic references (e.g. Europe to individual country names) was disastrous to retrieval performance. Clearly, successful geographic information retrieval will require substantially more research to improve upon heuristic approaches. Keyword: Categories and Subject Descriptors H.3 [Information Storage and Retrieval; Cross-language information retrieval; Experimentation Keywords Geographic Information Retrieval; H.3.3 Information Search and Retrieval-- Query Formulation; H.3.4 Systems and Software-- Performance evaluation (efficiency and effectiveness; H.3.7 Digital Libraries General Terms Measurement; Performance URL: http://www.clef-campaign.org/2005/working_notes/workingnotes2005/gey205.pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.109.2031 BASE Hide details 2 General Terms Fredric Gey; Ray Larson; Mark S... In: http://www.dcs.gla.ac.uk/~hideo/pub/geoclef05/geoclef2005overview.pdf BASE Show details 3 General Terms Fredric Gey; Ray Larson; Mark S... In: http://dis.shef.ac.uk/mark/cv/publications/papers/my_papers/GeoCLEF-overview-workshop-paper.pdf BASE Show details

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