Author

Y. Oh

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Preprint Sep 2026

Graph Coloring with Color Preferences

We study graph coloring with color preferences, in which each vertex ranks the available colors. In addition to assigning different colors to adjacent vertices, we require the coloring to be stable: no group of vertices can cyclically exchange their assigned colors so that each strictly prefers its new color to its ori...

Tomohiro Koana, Y. Oh, Hirotaka Yoneda · 0 citations

#machine learning Preprint Aug 2026

Optimally Selecting Representative Agents from a Metric Space

It is shown that this lower bound is tight and that a clustering in the $2$-Droop core always exists, and that such a clustering can be achieved by only selecting centers from locations in the metric space where an agent resides.

Benjamin Cookson, E. Deltl, Y. Oh · 0 citations