DIMACS - Recent Accomplishments

DIMACS , the Center for Discrete Mathematics and Theoretical Computer Science, conducts research, education and outreach programs in discrete mathematics and theoretical computer science. These areas are the underlying models of much recent progress in digital computing, optimization, communications, and increasingly in areas such as molecular biology. The advent of digital computing and communication has both enabled scientific progress in many disciplines and become a grand challenge for science in its own right.

This page introduces just 3 of DIMACS accomplishments. The home page for DIMACS gives a broad overview.

Molecular Biology Special Year

A special year program in Mathematical Support for Molecular Biology (1994-1996) is currently looking at problems in molecular biology that can be addressed through discrete models and computation. These problems include genome sequencing, database methods, and phylogeny reconstruction, as well as applications to protein folding, HIV analysis, and drug discovery. Sponsors include AT&T Bell Laboratories, Bellcore, CDC, DOE, National Center for Human Genome Research, National Institute of Allergy and Infectious Diseases, NIH, NSF, NSA, New Jersey Commission on Science and Technology, Princeton University, Roche Molecular Systems, Rutgers University, Sandia Labs. Smith-Kline Beecham,

DIMACS is training 4 postdoctoral fellows concentrating on mathematical and computational problems arising from molecular biology; conducted a 3 week program of tutorials to introduce fellows, graduate students and researchers to this emerging research area; is sponsoring 13 workshops on topics ranging from determining family trees via genetic analysis (phylogeny) to HIV sequence analysis; and is sponsoring a series of 10 distinguished lecturers .

K-12 Education Programs

The Leadership Program in Discrete Mathematics has directly trained over 330 teachers in the Northeast US in learning discrete mathematics and adapting it to their classrooms. Sponsors include DIMACS, Rutgers Center for Math, Science and Computer Education, and NSF-EHR. This program began with high school teachers in 1989, extended to middle school teachers in 1992 and will initiate programs for elementary teachers in 1995. Program goals include enabling the teachers to become mathematicians in their own careers as well as introducing teachers and students to discrete mathematics to prepare them for careers that apply this mathematics in computing, communications and other new technologies.

Leadership program alumni have incorporated discrete mathematics in their classrooms, have hosted Workshops in Your District programs to reach an additional 300 teachers per year, have led workshops for their teaching peers to reach over 10,000 teachers in the US. Other impacts include a group of alumni who have developed a curriculum for a discrete mathematics course that has been adopted for the New York City curriculum; Greatest Hits in Discrete Mathematics, a book in preparation of tested classroom activities that were developed and written by alumni, a regular newsletter reaching over 3000 teachers, and incorporating discrete mathematics in the New Jersey Curriculum Framework, a curriculum being developed by the NJ Math Coalition and the NJ Dept. of Education, in cooperation with the NJ-SSI.

DIMACS Implementation Challenges: The Traveling Salesman Problem

In response to the need to bridge fundamental theoretical work in algorithms and combinatorial optimization to implementations for practical use, DIMACS has sponsored annual Implementation Challenges on problems related to the Grand Challenges. Challenge topics have been Network Flows and Matching (1990-91), Clique, Coloring and Satisfiability (1992-93), Parallel Algorithms for Tree Searching and for Manipulating Sparse and Dynamic Graphs (1993-94), and currently Two Problems in Computational Biology: Fragment Assembly and Genome Rearrangements (1994-95).

In work that grew out of the 1992-93 challenge, Vasek Chvatal, William Cook and Robert Bixby have made enormous strides on solving the Traveling Salesman Problem, the best known NP-Complete problem which seeks the shortest path to visit all the cities on a map. They have set several international records for largest maps solved, including: 3038 cities in 1992; 4461 cities in 1993; and 7397 cities in 1994. Their work illustrates the doubled impact of combining basic mathematical research on the combinatorial models of the problem with steady improvements in implementations and access to faster computers.


Page two of 1996 Blue Book.
Blue Book Pages prepared by Stephen Mahaney, mahaney@dimacs.rutgers.edu
dimacs-www@dimacs.rutgers.edu