Abstract
Spatial-textual data is ubiquitous on websites such as OpenStreetMap or Wikipedia and is published progressively by Open Government Data Initiatives. Those data sources provide the base for novel mashup applications for Location-Based Services. We present a mobile prototype for the San Francisco area based on Preference SQL that allows an intuitive expression of spatial keyword queries. Search can further be extended towards temporal, categorical, and numerical attributes. Our demo provides a fully flexible toolbox for generating extended spatial-textual queries in non-metric spaces which are evaluated using a Best-Matches-Only query model. Spatial relevance is defined by an asymmetric routing distance supporting complex geometries. Textual relevance is determined using the Apache Lucene library.
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References
Kießling, W.: Foundations of Preferences in Database Systems. In: Proceedings of 28th Int. VLDB Conference, pp. 311–322. Morgan Kaufmann (2002)
Kießling, W., Endres, M., Wenzel, F.: The Preference SQL System - An Overview. IEEE Data Engineering Bulletin 34(2), 11–18 (2011)
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© 2013 Springer-Verlag Berlin Heidelberg
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Wenzel, F., Köppl, D., Kießling, W. (2013). Interactive Toolbox for Spatial-Textual Preference Queries. In: Nascimento, M.A., et al. Advances in Spatial and Temporal Databases. SSTD 2013. Lecture Notes in Computer Science, vol 8098. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40235-7_29
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DOI: https://doi.org/10.1007/978-3-642-40235-7_29
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-40234-0
Online ISBN: 978-3-642-40235-7
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