4 papers
Experiments and a User Study for Hierarchical Drawings of Graphs
Panagiotis Lionakis, Giorgos Kritikakis, Ioannis G. Tollis
We present experimental results and a user study for hierarchical drawings of graphs. A detailed hierarchical graph drawing technique that is based on the Path Based Framework (PBF…
Computing a Feedback Arc Set Using PageRank
Vasileios Geladaris, Panagiotis Lionakis, Ioannis G. Tollis
We present a new heuristic algorithm for computing a minimum Feedback Arc Set in directed graphs. The new technique produces solutions that are better than the ones produced by the…
Algorithms and Experiments Comparing Two Hierarchical Drawing Frameworks
Panagiotis Lionakis, Giorgos Kritikakis, Ioannis G. Tollis
We present algorithms that extend the path-based hierarchical drawing framework and give experimental results. Our algorithms run in time, where is the number of paths…
Adventures in Abstraction: Reachability in Hierarchical Drawings
Panagiotis Lionakis, Giacomo Ortali, Ioannis G. Tollis
We present algorithms and experiments for the visualization of directed graphs that focus on displaying their reachability information. Our algorithms are based on the concepts of…