annual runoff prediction using a nearest-neighbour method based on cosine angle distance for similarity estimation

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ID: 249859
2015
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Abstract
The Nearest Neighbour Method (NNM) is a data-driven and non-parametric scheme established on the similarity characteristics of hydrological phenomena. One of the important parts of NNM is to choose a proper distance measure. The Euclidean distance (EUD) is a commonly used distance measure, which represents the absolute distance of a spatial point and is directly related to the coordinate of the point, but is not sensitive to the direction of the feature vector. This paper used the cosine angle distance (CAD) for the similarity measure, which reflects more differences in the direction, and compared it to EUD. This technique is applied to annual runoff at YiChang station on the Yangtze River. The results show the NNM with CAD has a better performance than that of EUD.
Reference Key
qin2015proceedingsannual Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;G. Qin;G. Qin;H. Li;H. Li;X. Wang;X. Wang;Q. He;S. Li
Journal gruppe interaktion organisation zeitschrift fur angewandte organisationspsychologie
Year 2015
DOI
10.5194/piahs-368-204-2015
URL
https://www.proc-iahs.net/368/204/2015/piahs-368-204-2015.pdf
Keywords
environmental sciencesgeology

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