57 search results - page 12 / 12 » Inapproximability for planar embedding problems |
PODS
2004
ACM
15 years 9 months ago
2004
ACM
We present a novel coding-based technique for answering spatial and spatiotemporal queries on objects moving along a system of curves on the plane such as many road networks. We h...
WADS
2005
Springer
15 years 2 months ago
2005
Springer
Let G be an embedded planar graph whose edges may be curves. The detour between two points, p and q (on edges or vertices) of G, is the ratio between the shortest path in G between...