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GeoCLEF 2008: the CLEF 2008 Cross-Language Geographic Information Retrieval Track Overview
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GikiCLEF: Crosscultural issues in multilingual information access
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GikiCLEF: Crosscultural issues in multilingual information access
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Challenges to Evaluation of Multilingual Geographic Information Retrieval in GeoCLEF
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Domain-Specific CLIR of English, German and Russian Using Fusion and Subject Metadata for Query Expansion ...
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Berkeley at GeoCLEF
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Abstract:
In this paper we will describe the Berkeley (groups 1 and 2 combined) submissions and approaches to the GeoCLEF task for CLEF 2005. The two Berkeley groups used different systems and approaches for GeoCLEF with some common themes. For Berkeley group 1 (Larson) the main technique used was fusion of multiple probabilistic searches against different XML components using both Logistic Regression (LR) algorithms and a version of the Okapi BM-25 algorithm. The Berkeley group 2 (Gey and Petras) employed tested CLIR methods from previous CLEF evaluations using Logistic Regression with Blind Feedback. Both groups used multiple translations of queries in for cross-language searching, and the primary geographically-based approaches taken by both involved query expansion with additional place names. The Berkeley1 group used GIR indexing techniques to georeference proper nouns in the text using a gazetteer derived from the World Gazetteer (with both English and German names for each place), and automatically expanded place names in topics for regions or countries in the queries by the names of the countries or cities in those regions or countries. The Berkeley2 group used manual expansion of queries, adding additional place names. ; Peer Reviewed
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Keyword:
020 Bibliotheks- und Informationswissenschaften; ddc:020
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URN:
urn:nbn:de:kobv:11-110-18452/21178-8
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URL: https://doi.org/10.1007/11878773_108 https://doi.org/10.18452/19967 http://edoc.hu-berlin.de/18452/21178
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Domain-Specific CLIR of English, German and Russian Using Fusion and Subject Metadata for Query Expansion
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English-Chinese Cross-Language IR Using Bilingual Dictionaries
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In: DTIC (2006)
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English-German Cross-Language Retrieval for the GIRT Collection - Exploiting a Multilingual Thesaurus
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In: DTIC (2006)
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Using Thesauri in Cross-Language Retrieval of German and French Indexed Collections ...
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Using Thesauri in Cross-Language Retrieval of German and French Indexed Collections
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Advanced Search Technologies for Unfamiliar Metadata
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In: DTIC (2001)
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