A UTILITY CENTERED APPROACH FOR EVALUATING AND OPTIMIZING GEO-TAGGING

Albert Weichselbraun

2009

Abstract

Geo-tagging is the process of annotating a document with its geographic focus by extracting a unique locality that describes the geographic context of the document as a whole (Amitay et al., 2004). Accurate geographic annotations are crucial for geospatial applications such as Google Maps or the IDIOM Media Watch on Climate Change (Hubmann-Haidvogel et al., 2009), but many obstacles complicate the evaluation of such tags. This paper introduces an approach for optimizing geo-tagging by applying the concept of utility from economic theory to tagging results. Computing utility scores for geo-tags allows a fine grained evaluation of the tagger’s performance in regard to multiple dimensions specified in use case specific domain ontologies and provides means for addressing problems such as different scope and coverage of evaluation corpora. The integration of external data sources and evaluation ontologies with user profiles ensures that the framework considers use case specific requirements. The presented model is instrumental in comparing different geotagging settings, evaluating the effect of design decisions, and customizing geo-tagging to a particular use cases.

Paper Citation

in Harvard Style

Weichselbraun A. (2009). A UTILITY CENTERED APPROACH FOR EVALUATING AND OPTIMIZING GEO-TAGGING . In Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2009) ISBN 978-989-674-011-5, pages 134-139. DOI: 10.5220/0002289401340139

in Bibtex Style

@conference{kdir09,
author={Albert Weichselbraun},
title={A UTILITY CENTERED APPROACH FOR EVALUATING AND OPTIMIZING GEO-TAGGING},
booktitle={Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2009)},
year={2009},
pages={134-139},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002289401340139},
isbn={978-989-674-011-5},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2009)
TI - A UTILITY CENTERED APPROACH FOR EVALUATING AND OPTIMIZING GEO-TAGGING
SN - 978-989-674-011-5
AU - Weichselbraun A.
PY - 2009
SP - 134
EP - 139
DO - 10.5220/0002289401340139