Benjamin Raichel is an Assistant Professor of Computer Science. His research interests include:
- Algorithms and Theory
- Discrete and Computational Geometry
- Randomized and Approximation Algorithms
In 2018 the National Science Foundation awarded its CAREER Award for Dr. Raichel's project on geometric-based data anaysis.
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We consider the problem of computing a restricted nonnegative matrix factorization (NMF) of an m × n matrix X. Specifically, we seek a factorization X ≈ BC, where the k columns of B are a subset of those from X and C ∈ ...
(SIAM Publications, 2018-10-22)We study the problem of discrete geometric packing. Here, given weighted regions (say, in the plane) and points (with capacities), one has to pick a maximum weight subset of the regions such that no point is covered more ...