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PCE
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DIFF Subgroup
G06F 18/232

Non-hierarchical techniques

Introduced: January 2023

Full Title

Pattern recognition > Analysing > Clustering techniques > Non-hierarchical techniques

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

IPC defines codes here since 2023.

Child Classifications

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  • G06F 18/2323 based on graph theory, e.g. minimum spanning trees [MST] or graph cuts since 2023 IPC+CPC Available in IPC and CPC
  • G06F 18/2325 using vector quantisation since 2023 IPC+CPC Available in IPC and CPC
  • G06F 18/2337 using fuzzy logic, i.e. fuzzy clustering since 2023 IPC+CPC Available in IPC and CPC