The conference LOGO is inspired by the Great Harbor Bridge, which is a landmark in Kaohsiung featuring its streamlined design. It is also the first bridge that can rotate horizontally to let boats pass through.

If the LOGO is viewed as a graph, then it is the graph with its graph6 string "G?}WNc" . It second smallest Laplacian eigenvalue is 1.6202543669426…

You may run the Sage code below

g = Graph("G?}WNc")
L = g.laplacian_matrix()
g.show()
show(L)
print(sorted(L.eigenvalues()))

or use SageCell to see the graph, the Laplacian matrix, and the eigenvalues.