WordNet-based Index Terms Expansion for Geographical Information Retrieval
نویسندگان
چکیده
This paper presents the results obtained by our group at the GeoCLEF 2006. Our system used a method based on the expansion of
منابع مشابه
Using the WordNet Ontology in the GeoCLEF Geographical Information Retrieval Task
This paper describes how we managed to use the WordNet ontology for the GeoCLEF 2005 English monolingual task. Both a query expansion method, based on the expansion of geographical terms by means of WordNet synonyms and meronyms, and a method based on the expansion of
متن کاملA WordNet-based Query Expansion Method for Geographical Information Retrieval
This report describes a query expansion method based on the expansion of geographical terms by means of WordNet synonyms and meronyms. We used this method for our participation to the GeoCLEF 2005 English monolingual task, while using the well-known Lucene search engine for indexing and retrieval. The obtained results show that the proposed method was not suitable for the GeoCLEF track, while W...
متن کاملA WordNet-Based Indexing Technique for Geographical Information Retrieval
This paper presents an indexing technique based on WordNet synonyms and holonyms. This technique has been developed for the Geographical Information Retrieval task. It may help in finding implicit geographic information contained in texts, particularly if the indication of the containing geographical entity is omitted. Our experiments were carried out with the Lucene search engine over the GeoC...
متن کاملThe UPV at GeoCLEF 2008: The GeoWorSE System
This year our system was complemented with a map-based filter. During the indexing phase, all places are disambiguated and assigned their coordinates on the map. These coordinates are stored in a separate index. The search process is carried out in two phases: in the first one, we search the collection with the same method applied in 2007, which exploits the expansion of index terms by means of...
متن کاملOn the Relative Importance of Toponyms in GeoCLEF
In this work we attempted to determine the relative importance of the geographical and WordNet-extracted terms with respect to the remainder of the query. In our system, geographical terms are expanded with WordNet holonyms and synonyms and indexed separately. We checked the relative importance of the terms by multiplying their weight by 0.75, 0.5 and 0.25. The comparison to the baseline system...
متن کامل