Information Retrieval
Consistent Queries over Cardinal Directions Across Different Levels of Detail
DEXA '00 Proceedings of the 11th International Workshop on Database and Expert Systems Applications
Composing cardinal direction relations
Artificial Intelligence
International Journal of Geographical Information Science - Digital Gazetteer Research
On internal cardinal direction relations
COSIT'05 Proceedings of the 2005 international conference on Spatial Information Theory
Boxplot for circular variables
Computational Statistics
Models for half-direction based part-whole relationships
Proceedings of the Third ACM SIGSPATIAL International Workshop on GeoStreaming
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We present a conceptual framework and computational mechanism to allow the interpretation of text phrases such as "in southeastern Bahia," and "in central Goiás" as spatial features in GIS context. The framework recognises different notions of centre, central sector and outer sector, from which a variety of interpretation models is derived. We subsequently evaluate these models for the performance characteristics of precision and recall, against a digitised, natural history gazetteer for Brazil, and draw conclusions on the cognition of, and computation with directional part-whole relationships.