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Published byGriffin Wilkerson Modified over 8 years ago
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Classification of Avian Migration Patterns Aparna Pal
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Motivation Climate change and shifting migration patterns Avian mortality and endangered species Habitat disruption
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How can migration prediction help? Allows us to offset damage done to endangered species with human intervention Gives us a good index for global climate change fluctuations
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The Data Set Ninigret National Wildlife Refuge Banding Summary 2008-2012 Whooping Crane Eastern Partnership Annual Monitoring Report 2008-2012 Texas Observation Station Banding Summary Evaluation of Shorebird use of Selected Refuge Habitats in the Lower Mississippi Valley Based on data sets, the experiment became more of a classification problem
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The Feature Set Data sets included: Weights Season of Arrival* Flock size (or Total birds found) Gender Time Spotted Shorebird Vs Land bird feature manually added by data set
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K-Nearest Neighbor Classifier Weighted Euclidean Distance formula used Best classification results found for testing sets with 10+ nearest neighbors used within calculations Classification rate jumps from ~76% to ~84% between 10 and 11 neighbors, but declines afterwards
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Conclusions 11 Neighbors optimal for classification of this particular dataset Caveats: The data set used was parsed together Missing information Unreliable data upkeep pre-2009 Classification could be more reliable with a more spanning data set
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What’s next? Contact USGS Find larger data sets Possibility of prediction models?
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References "IBP the MAPS Program." IBP the MAPS Program. Web. 20 Mar. 2016. "California Avian Data Center." California Avian Data Center. Web. 20 Mar. 2016. Cotton P.A, 2003 Avian migration phenology and global climate change. Proc. Natl Acad. Sci. USA. 100,12219–12222. Richard Easterbrook, 2013, Ninigret National Wildlife Refuge Banding Summary 2008-2012 U.S. Fish and Wildlife Service, 2012, Whooping Crane Eastern Partnership Annual Monitoring Report 2008-2012 J. Wang and J.-D. Zucker, “Solving the multiple-instance problem: a lazy learning approach,” in Proceedings of the 17th International Conference on Machine Learning, Stanford, CA, 2000, pp. 1119–1125.
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Thank you!
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