## Publications

### 2012

- A Non-monotonic Method for Large-scale Nonnegative Least Squares (pdf, software)

D. Kim, S. Sra, I. Dhillon.*Optimization Methods and Software*, 2012.

### 2010

- Tackling Box-Constrained Optimization Via a New Projected Quasi-Newton Approach (pdf, software)

D. Kim, S. Sra, I. Dhillon.*SIAM Journal on Scientific Computing*30(6), pp. 3548-3563, December 2010. - A Scalable Trust-region Algorithm with Application to Mixed-Norm Regression (pdf, software)

D. Kim, S. Sra, I. Dhillon.

In*International Conference on Machine Learning (ICML)*, pp. 519-526, June 2010.

### 2009

- A New Non-monotonic Algorithm for PET image reconstruction

S. Sra, D. Kim, I. Dhillon, B. Schölkopf.

In*IEEE Medical Imaging Conference (MIC)*, October 2009.

### 2008

- Fast Projection-Based Methods for the Least Squares Nonnegative Matrix Approximation Problem (pdf, software)

D. Kim, S. Sra, I. Dhillon.*Statistical Analysis and Data Mining*1(1), pp. 38-51, February 2008.

### 2007

- Fast Newton-type Methods for the Least Squares Nonnegative Matrix Approximation Problem (pdf, software)

D. Kim, S. Sra, I. Dhillon.

In*SIAM International Conference on Data Mining (SDM)*, pp. 343-354, April 2007.