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- James Abello, Mauricio G. C. Resende, Sandra Sudarsky
- LATIN
- 2002

We describe techniques that are useful for the detection of dense subgraphs (quasi-cliques) in massive sparse graphs whose vertex set, but not the edge set, fits in RAM. The algorithms rely onâ€¦ (More)

- James Abello, Adam L. Buchsbaum, Jeffery Westbrook
- Algorithmica
- 1998

We present a new approach for designing external graph algorithms and use it to design simple, deterministic and randomized external algorithms for computing connected components, minimum spanningâ€¦ (More)

- James Abello, Frank van Ham, Neeraj Krishnan
- IEEE Transactions on Visualization and Computerâ€¦
- 2006

We describe ASK-GraphView, a node-link-based graph visualization system that allows clustering and interactive navigation of large graphs, ranging in size up to 16 million edges. The system uses aâ€¦ (More)

- James Abello, Panos M. Pardalos, Mauricio G. C. Resende
- External Memory Algorithms
- 1998

We present an approach for clique and quasi-clique computations in very large multi-digraphs. We discuss graph decomposition schemes used to break up the problem into several pieces of manageableâ€¦ (More)

- James Abello, Krishna Kumar
- Graph Drawing
- 1994

- Jop F. Sibeyn, James Abello, Ulrich Meyer
- SPAA
- 2002

Computing the strong components of a directed graph is an essential operation for a basic structural analysis of it. This problem can be solved by twice running a depth-first search (DFS). In anâ€¦ (More)

- James Abello, Sergiy Butenko, Panos M. Pardalos, Mauricio G. C. Resende
- J. Global Optimization
- 2001

Two continuous formulations of the maximum independent set problem on a graph G = (V ,E) are considered. Both cases involve the maximization of an n-variable polynomial over the n-dimensionalâ€¦ (More)

- Christian Tominski, James Abello, Frank van Ham, Heidrun Schumann
- Tenth International Conference on Informationâ€¦
- 2006

We present interactive visual aids to support the exploration and navigation of graph layouts. They include fisheye tree views and composite lenses. These views provide, in an integrated manner,â€¦ (More)

- James Abello, Michael R. Fellows, John Stillwell
- Australasian J. Combinatorics
- 1991

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- James Abello, Frank van Ham
- IEEE Symposium on Information Visualization
- 2004

In Web data, telecommunications traffic and in epidemiological studies, dense subgraphs correspond to subsets of subjects (i.e. users, patients) that share a collection of attributes values (i.e.â€¦ (More)