G. Ward, T. Hastie, S. Barry, J. Elith and J.R. Leathwick Department of...  Home/Search
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Abstract: this paper is based on strict assumptions about the sampling mechanisms. In particular, we assume that the observed presences in the presenceonly sample are taken at random from all locations, at a rate proportional to the probability of presence. Additionally, we assume that the background sample is sampled at random from the full population of locations. In practice, this second assumption is often approximately true; GIS provides an easy way to generate environmental covariates for locations ... (Update)
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BibTeX entry: (Update)
@misc{ barry-presenceonly,
author = "Ward Hastie Barry",
title = "Presence-only data and the EM algorithm",
url = "citeseer.ist.psu.edu/766772.html" }
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