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This could lead to a\nmisleading interpretation of the underlying structures [Thrun,\n2018]. By means of the 3D topographic map the generalized\nUmatrix is able to depict errors of these two-dimensional\nscatter plots. The package is derived from the book of Thrun,\nM.C.: \"Projection Based Clustering through Self-Organization\nand Swarm Intelligence\" (2018) \nand the main algorithm called simplified self-organizing map\nfor dimensionality reduction methods is published in Thrun,\nM.C. and Ultsch, A.: \"Uncovering High-dimensional Structures of\nProjections from Dimensionality Reduction Methods\" (2020)\n.", "License": "GPL-3", "NeedsCompilation": "yes", "SystemRequirements": "C++17, GNU make, pandoc (>=1.12.3, needed for\nvignettes), OpenCL shared library (provided by an SDK such as\nAMD/NVIDIA)", "LazyLoad": "yes", "LazyData": "TRUE", "Encoding": "UTF-8", "Packaged": { "Date": "2026-10-22 11:33:39 UTC", "User": "root" }, "Author": "Quirin Stier [aut, cre] (ORCID:\n), Michael Thrun [aut,\ncph] (ORCID: ), The\nKhronos Group Inc. 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