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. 2016 Mar 21;3(4):233–247. doi: 10.1007/s40708-016-0043-5

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Effects in high-dimensional data: some objects are only similar in a subset of dimensions (=subspace), e.g., $r e c_{1}, r e c_{2}, r e c_{3}$ in the first three and $r e c_{3}, r e c_{n - 1}, r e c_{n}$ in the last three dimensions. Similar values in specific dimensions are encoded by the same color. (Color figure online)