Christopher S. Helvig

Improved approximation bounds for the group Steiner problem

Alex Zelikovsky, Gabriel Robins, Christopher S. Helvig, 1998, Proceedings Design, Automation and Test in Europe.

New approximation algorithms for routing with multiport terminals

Alex Zelikovsky, Gabriel Robins, Christopher S. Helvig, 2000, IEEE Trans. Comput. Aided Des. Integr. Circuits Syst..

Moving-Target TSP and Related Problems

Alex Zelikovsky, Gabriel Robins, Christopher S. Helvig, 1998, ESA.

Visual search in medical images: a new methodology to quantify saliency

Jannick P. Rolland, Keith E. Muller, Christopher S. Helvig, 1995, Medical Imaging.

Visual search in angiograms: does geometry play a role in saliency?

Jannick P. Rolland, Christopher S. Helvig, 1996, Medical Imaging.

An improved approximation scheme for the Group Steiner Problem

Alex Zelikovsky, Gabriel Robins, Christopher S. Helvig, 2001, Networks.

The moving-target traveling salesman problem

Alex Zelikovsky, Gabriel Robins, Christopher S. Helvig, 2003, J. Algorithms.

Provably good routing tree construction with multi-port terminals

Alex Zelikovsky, Gabriel Robins, Christopher S. Helvig, 1997, ISPD '97.