# Optimization Research Group at UC Merced

The optimization research group meets on a weekly basis to share and discuss current optimization research in the Applied Mathematics Unit here at UC Merced. In particular we have bi-weekly seminar talks, where students and faculty present aspects of their research.

Our group meetings and seminar are led by Professors Roummel Marcia, Juan Meza and Noemi Petra and consist of graduate students, postdocs and faculty in the Applied Mathematics Unit.

During Fall 2017 these meetings are held in the SE1 298 on Thursdays from 10am-11am.

**Upcoming Talk/Event**

**Fall 2017 **

- Thursday, September the 28th (10am-11am in SE1 298)

Omar DeGuchy, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Compact Representation of the Full Broyden Class of Quasi-Newton Matrices*

- Thursday, October the 12th (10am-11am in SE1 298)

Johannes Brust, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Dense Initial Matrices for Large-Scale Trust-Region Quasi-Newton Optimization*

- Thursday, October the 26st (10am-11am in SE1 298)

Soheil Fatehiboroujeni, Graduate Student, Mechanical Engineering, School of Engineering, University of California, Merced

*Bayesian Inversion for the Young’s Modulus Field in an Elastic Model of Slender Structures*

- Thursday, November the 9th (10am-11am in SE1 298)

Derek Hollenbeck, Graduate Student, Mechanical Engineering, School of Engineering, University of California, Merced

*Fractional Calculus Enhanced Source Seeking of Fugitive Methane: A First Approach*

- Thursday, November the 30th (10am-11am in SE1 298)

Radoslav Vuchkov, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*TBA*

- Thursday, December the 7th (10am-11am in SE1 298)

Tucker Hartland, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*TBA*

**Spring 2017 **

- Tuesday, March the 21st (12pm-1pm in COB1 322 Willow Room)

Lasith Adhikari, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Nonconvex Sparse Recovery Methods*

- Tuesday, April the 4th (12pm-1pm in COB1 322 Willow Room)

Harish Bhat, Professor of Applied Mathematics, School of Natural Sciences, University of California, Merced

*A crash course in expectation maximization*

- Tuesday, March the 11th (12pm-1pm in COB1 322 Willow Room)

Madushani Rajapaksha, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Parameter inference for Stochastic Differential Equations*

- Tuesday, April the 18th (12pm-1pm in COB1 322 Willow Room)

Omar DeGuchy, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Compact Representation of the Full Broyden Class of Quasi-Newton Updates*

- Tuesday, May 2nd (12pm-1pm in COB1 322 Willow Room)

Ruanui Nicholson, Postdoctoral Researcher, Applied Mathematics, School of Natural Sciences, University of California, Merced

*TBA*

**Fall 2016 **

- Tuesday, December the 5th (10.30-11.30am in SSM 217 El Capitan)

Ruanui Nicholson, Postdoctoral Researcher,

*Applied Mathematics, School of Natural Sciences, University of California, Merced**The Bayesian approximation error approach to model reduction in inverse problems*

- Tuesday, November the 29th (10.30-11.30am in SSM 317) -
**Cancelled**

Omar DeGuchy, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*TBA*

- Tuesday, November the 15th (10.30-11.30am in SSM 317) -
**Cancelled**

James Stinecipher, Graduate Student, Environmental Systems, School of Natural Sciences, University of California, Merced

*TBA*

- Tuesday, November the 1st (10.30-11.30am in SSM 317)

Noemi Petra, Assistant Professor, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Joint Model and Parameter Dimension Reduction for Bayesian Inversion Applied to an Ice Sheet Problem*

- Tuesday, October the 18th (10.30-11.30am in SSM 317)

Lasith Adhikari, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Part I: Nonconvex Sparse Poisson Intensity Reconstruction for Time-Dependent Bioluminescence Tomography*

Part II: Trust-Region Methods for Nonconvex Sparse Recovery Optimization

Part II: Trust-Region Methods for Nonconvex Sparse Recovery Optimization

- Tuesday, October the 4th (10.30-11.30am in SSM 317)

Johannes Brust, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*On Shape-Changing Norms for a Trust-Region Method*

- Tuesday, September the 20th (10.30-11.30am in SE2 390)

Harish Bhat, Professor of Applied Mathematics, School of Natural Sciences, University of California, Merced

*Inference for Diffusion Processes*

- September 07, 2016 (12-1pm in SE1 300) : Kickoff meeting

**Spring 2016 **

- January 27, 2016 (12-1pm in SE1 300) : Kickoff meeting

- February 10, 2016 (12-1pm in SE1 300)

Johannes Brust, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*On the Symmetric Multiple Secant Method*

- February 24, 2016 (12-1pm in SE1 300)

James R Stinecipher, Graduate Student, Environmental Systems, School of Engineering, University of California, Merced

*Atmospheric Modeling Applications of Adjoint-Based Inversion*

- March 9, 2016 (12-1pm in SE1 300)

Mario Banuelos, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Sparse Signal Recovery Methods For Variant Detection In Next-Generation Sequencing (NGS) Data*

- March 16, 2016 (12-1pm in SE1 300)

Juan Meza, Dean, Professor of Applied Mathematics, School of Natural Sciences, University of California, Merced

*A Short Tour of Derivative-Free Optimization*

- April 6, 2016 (12-1pm in SE1 300)

Hrant Hratchian, Assistant Professor of Chemistry and Chemical Biology at the University of California, Merced

*Cancelled*

- April 13, 2016 (12-1pm in SE1 300)

Alexander Ostermann, Professor of Numerical Analysis at the University of Innsbruck

*Operator splitting for oblique boundary conditions*

- April 20, 2016 (12-1pm in SE1 300)

Hrant Hratchian, Assistant Professor of Chemistry and Chemical Biology at the University of California, Merced

*Part I:*

*An Introduction to Molecular Quantum Chemistry*

- May 04, 2016 (12-1pm in SE1 300)

Hrant Hratchian, Assistant Professor of Chemistry and Chemical Biology at the University of California, Merced

*Part II:*

*An Introduction to Molecular Quantum Chemistry*

- May 11, 2016 (12-1pm in SE1 300)

Lasith Adhikari, Graduate Student, Applied Mathematics, School of Natural Sciences, University of California, Merced

*Fluorescence-Lifetime Imaging Microscopy (FLIM) with Poisson Noise*

**Previous Talks/Events**

**Fall 2015 **(seminar was led by Professors Roummel Marcia, Juan Meza and Noemi Petra)

**Spring 2015 **(seminar was led by Professors Roummel Marcia, Juan Meza, Noemi Petra and Ekkehard Sachs)

### Contact Us

**Graduate Admissions:**

Phone: 209-228-4723

**Graduate Funding:**

Phone: 209-228-4622

**General Inquiries:**

Phone: 209-228-4723

Fax: 209-228-6906

**Mailing Address:**

University of California, Merced

ATTN: Graduate Division

5200 N. Lake Road, SSB 310

Merced, CA 95343

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mission of research, teaching and service.

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5200 N. Lake Road

Merced, CA 95343

T: 209-228-4400