Theory and Applied Computing: Observations and Anecdotes
2004
While the kind of theoretical computer science being studied in academe is still highly relevant to systems-oriented research, it is less relevant to applications-oriented research. In applied computing, theoretical elements are used only when strictly relevant to the practical problem at hand. Theory is often combined judiciously with empiricism. And increasingly, theory is most useful when cross-pollinated with ideas and methods from other fields. We will illustrate these points by describing several recent projects at Mitsubishi Electric Research Labs that have heavy mathematical and algorithmic underpinnings. These projects include new algorithms for: traffic analysis; geometric layout; belief propagation in graphical models; dimensionality reduction; and shape representation. Practical applications of this work include elevator dispatch, stock cutting, error-correcting codes, data mining, and digital typography. In all cases theoretical concepts and results are used effectively to solve practical problems of commercial import.
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