Tagging the main entrances of public buildings based on OpenStreetMap and binary imbalanced learning
Determining the location of a building’s entrance is crucial to location-based services, such as wayfinding for pedestrians. Unfortunately, entrance information is often missing from current mainstream map providers such as Google Maps. Frequently, automatic approaches for detecting building entranc...
Gespeichert in:
| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
04 Feb 2021
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| In: |
International journal of geographical information science
Year: 2021, Jahrgang: 35, Heft: 9, Pages: 1773-1801 |
| ISSN: | 1365-8824 |
| DOI: | 10.1080/13658816.2020.1861282 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1080/13658816.2020.1861282
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| Verfasserangaben: | Xuke Hu, Alexey Noskov, Hongchao Fan, Tessio Novack, Hao Li, Fuqiang Gu, Jianga Shang and Alexander Zipf |
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| 520 | |a Determining the location of a building’s entrance is crucial to location-based services, such as wayfinding for pedestrians. Unfortunately, entrance information is often missing from current mainstream map providers such as Google Maps. Frequently, automatic approaches for detecting building entrances are based on street-level images that are not widely available. To address this issue, we propose a more general approach for inferring the main entrances of public buildings based on the association between spatial elements extracted from OpenStreetMap. In particular, we adopt three binary classification approaches, weighted random forest, balanced random forest, and smooth-boost to model the association relationship. There are two types of features considered in the classification: intrinsic features derived from building footprints and extrinsic features derived from spatial contexts, such as roads, green spaces, bicycle parking areas, and neighboring buildings. We conducted extensive experiments on 320 public buildings with an average perimeter of 350 m. The experimental results showed that the locations of building entrances estimated by the weighted random forest and balanced random forest models have a mean linear distance error of 21 m and a mean path distance error of 22 m, ruling out 90% of the incorrect locations of the main entrance of buildings. | ||
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| 650 | 4 | |a Main entrance tagging | |
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| 650 | 4 | |a random forest | |
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