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标题：Estimation of Moranâs I in the Context of Uncertain Mobile Sensor Measurements
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作者：Dominik Bucher ; Henry Martin ; David Jonietz 等
期刊名称：LIPIcs : Leibniz International Proceedings in Informatics
电子版ISSN：1868-8969
出版年度：2020
卷号：177
页码：1-15
DOI：10.4230/LIPIcs.GIScience.2021.I.2
出版社：Schloss Dagstuhl -- Leibniz-Zentrum fuer Informatik
摘要：Measures of spatial autocorrelation like Moranâs I do not take into account information about the reliability of observations. In a context of mobile sensors, however, this is an important aspect to consider. Mobile sensors record data asynchronously and capture different contexts, which leads to considerable heterogeneity. In this paper we propose two different ways to integrate the reliability of observations with Moranâs I. These proposals are tested in the light of two case studies, one based on real temperatures and movement data and the other using synthetic data. The results show that the way reliability information is incorporated into the Moranâs I estimates has a strong impact on how the measure responds to volatile available information. It is shown that absolute reliability information is much less powerful in addressing the problem of differing contexts than relative concepts that give more weight to more reliable observations, regardless of the general degree of uncertainty. The results presented are seen as an important stimulus for the discourse on spatial autocorrelation measures in the light of uncertainties.
关键词：mobile sensors; Moranâs I; uncertainty; probabilistic forecasting