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CABRI-Graph: A tool for research and teaching in graph theory,We present the graph visualization and computional system CABRI-Graph, an interactive tool that can be used by student, teacher or researcher. The user may construct graphs interactively, select algorithms or graph transformations from a menu, and view the results directly on the screen

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用樹皮

decipher

Adocs: a drawing system for generic combinatorial structures,ogram. The program is based on a generic description of the structures, and thus allows to draw structures of an infinite number of classes. It can be used in order to produce graphical output for Ga?a, an uniform random generator of combinatorial structures. It could be used with other programs and

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The effect of graph layout on inference from social network data, We investigate the effect of the layout of a social network on the inferences drawn by observers about the number of social groupings evident and the centrality of various actors in the network. We conducted an experiment in which eighty subjects provided answers about three drawings. The subjects

擴(kuò)大

輕打

Amorous

空氣

On the complexity of recognizing intersection and touching graphs of disks, overlap. In a previous paper [BK93], we showed that the recognition problem for . disk intersection graphs (i.e. intersection graphs of unit disks) is NP-hard. That proof is easily modified to apply to unit disk touching graphs as well. In this paper, we show how to generalize our earlier construct