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. 2017 Oct 12;17(10):2323. doi: 10.3390/s17102323

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Figure A2 — KNN optimization results using the real-life suburban and urban databases, respectively. A different value of the number of neighbors K has been used for each experiment (see the figure legend).