Vamsi K. Potluru

Vamsi K. Potluru
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Vamsi K. Potluru
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Computer Science - Learning (2)
 
Computer Science - Numerical Analysis (1)
 
Computer Science - Data Structures and Algorithms (1)

Publications Authored By Vamsi K. Potluru

Have you ever wanted to multiply an $n \times d$ matrix $X$, with $n \gg d$, on the left by an $m \times n$ matrix $\tilde G$ of i.i.d. Read More

Nonnegative matrix factorization (NMF) has become a ubiquitous tool for data analysis. An important variant is the sparse NMF problem which arises when we explicitly require the learnt features to be sparse. A natural measure of sparsity is the L$_0$ norm, however its optimization is NP-hard. Read More

We present multiplicative updates for solving hard and soft margin support vector machines (SVM) with non-negative kernels. They follow as a natural extension of the updates for non-negative matrix factorization. No additional param- eter setting, such as choosing learning, rate is required. Read More