Chapter

Progress in Location-Based Services 2014

Part of the series Lecture Notes in Geoinformation and Cartography pp 153-169

Date:

Analysing the Usage of Spatial Prepositions in Short Messages

  • André DittrichAffiliated withInstitute of Photogrammetry and Remote Sensing, Karlsruhe Institute of Technology Email author 
  • , Daniela RichterAffiliated withInstitute of Photogrammetry and Remote Sensing, Karlsruhe Institute of Technology
  • , Christian LucasAffiliated withInstitute of Photogrammetry and Remote Sensing, Karlsruhe Institute of Technology

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Abstract

Spatial prepositions such as in, on and near are important to describe where things are located in relation to other geographic features. Location-based services (LBS) usually disregard such spatial prepositions. Their automatic detection and interpretation is challenging, because prepositions are quite often used in non-spatial context (e.g., “in the afternoon”). This paper analyses spatial relations in short messages. Short messages typically have special characteristics (e.g., slang, abbreviations, etc.) and thus represent a special type of natural language. A sample corpus of short messages was used to extract descriptions based on spatial prepositions and to analyse their commonness of use. A frequency-based probability for each term to be spatial was calculated, which can serve as an indicator of a verbal spatial description and support the development of intelligent spatial language interpretation in automatic systems.

Keywords

Spatial relations Prepositions Verbal spatial descriptions