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Our People

Principal Investigator

Dr. Nan Kong


Research Interests:

  • Stochastic integer programming; global optimization under uncertainty
  • Scheduling, resource allocation, and capacity planning in healthcare and supply chain applications
  • Computational modeling of disease and disease management 
  • Computational image processing





Graduate Students

Hambisa Keno

Ph.D. Candidate, co-advised by Dr. Steven Landry


  • BS, Industrial Engineering,  Mekelle Ethiopia
  • MS, Engineering Technology, Middle Tennessee State University
  • MS, Aeronautics and Astronautics, Purdue University
  • Ph.D., Industrial Engineering, Purdue University

Research Areas of Interest:

  • Parametric Survival Analysis Methods
  • Simulation Modeling and Optimization
  • Healthcare Systems Engineering
  • Markov Processes

Expected Date of Graduation: 

  • Dec 2016


  • E-mail address:
  • Tel: 7654125278


Aditya P Sai

Ph.D. student

Current Projects:

  • Application of sparse grid-based methods to stochastic differential equation-based systems
  • model-based experimental design, parameter estimation, and optimal control for Ebola


  • B.S. Biomedical Engineering and Computer Science, Rutgers, The State University of New Jersey, 2013


  • Working out 
  • Watching movies
  • Traveling

Expected Date of Graduation: 

  • Dec 2017


  • E-mail address:
  • Tel: 7654125278
  • Linkedin:



Wei-An Chen

Ph.D. student co-advised with Prof. Gintaras Relkaitis and Prof. Joseph Pekny

Current Projects:

  • Algorithm development for stochastic mixed-integer bilinear program
  • Stochastic warehouse-inventory transportation problem 
  • Pharmaceutic supply chain management under uncertainty



  • Playing sports: badminton, volleyball, and wallyball
  • Watching movies/NBA
  • Playing board games


  • E-mail address:



Carolina Vivas Valencia

Ph.D Student

Current Project:

  • Non-communicable disease modeling with incorporation of behavioral/environmental factors 
  • Simulation modeling of the natural history of colorectal cancer
  • Model-based cost-effectiveness analysis of  colorectal cancer screening in collaboration with Dr. Thomas F. Imperiale at IUSM
  • Simulation modeling of Hypoglycemia in collaboration with Drs. Michael Weiner and Nicole R. Keith at Regenstrief Institute HSR


  • Master of Science (MS) in Biomedical Engineering, Purdue University / August 2015

            Thesis Tittle: Cost-Effectiveness On Age- And Gender-Specific CRC Screening Strategies.

  • Bachelor of Science in Biomedical Engineering, Escuela de Ingeniería de Antioquia – Universidad CES / December 2011

            Thesis Tittle:  Development of a Technical Protocol for PET/CT Exam for Patients with Cancer.

Teaching Experience:

  • Teaching Assistant - Healthcare Systems Engineering, Purdue University / Fall 2016
  • Teaching Assistant - Regulatory Approval of Medical Devices, Purdue University / Spring 2015, 2016
  • Teaching Assistant - Preclinical & Clinical Study Design, Purdue University /  Fall 2014, 2015 

Research Experience:

  • Research Assistant - Biomedical Analytics and Systems Optimization Lab, Purdue University / Fall 2013 - Current 
  • Junior Research Assistant in Clinical Engineering, Escuela de Ingeniería de Antioquia GIBEC Group / Jan 2009 - Nov 2010

Legal Experience:

  • Biomedical Engineering Assistant , CediMed s.a Medellí­n, Colombia / Dec 2010 - Dec 2011


  • Design + a good book + yoga + chocolate = happiness : )


  • E-mail address:


Zhouyang Lou

Ph.D. Student, co-advised by Dr. Hong Wan

Current Project:

  • Modeling heterogeneity in disease/care transition

  • Simulation modeling for anticholingergic drug, in collaboration with Drs. Noll Campbell, Wanzhu Tu, and IU center for aging research


  • B.S,  Mathematics/Statistics/Economics, Purdue University, 2012-2015
  • Ph.D. student, Industrial Engineering, Purdue University. 2015 - present

Research Areas of Interest:

  • simulation optimization
  • multi-objective optimization
  • metamodeling


  • Cooking
  • Scale models
  • Watching animes


  • E-mail address:
  • Tel: 7654043984
  • Wechat ID: joecosmox


Haonan Lin

Ph.D. Student, co-advised by Dr. Ji-Xin Cheng

Current Project:

  • Model-based image in painting for sparse-sampled hyperspectral image


  • Bachelor of Engineering, Engineering Physics, Tsinghua University, 2011-2015


  • Cycling
  • Badminton

Expected Date of Graduation: 

  • May 2020


  • E-mail address:



Current Visiting Ph.D. Student

Xiaochun Feng

co-advised by Dr. Xiangpei Hu in Dalian University of Technology

Current Project:

  • Joint optimization of order batching and picking sequencing in the online retailer’s warehouse


  • Visiting Ph.D. students, Weldon school of biomedical engineering, Purdue University, Sep 2016-present 
  • Ph.D. candidate, Management Science and Engineering, Department of Management and Economy, Dalian University of Technology, Sep 2014-present
  • Master of Engineering, Management Science and Engineering, Department of Management and Economy, Dalian University of Technology, Sep 2012-Jul 2015
  • Bachelor of Management, Information Management and Information System, School of Business, Jilin University, Sep 2008- Jul 2012


  • Singing 
  • Badminton
  • Running

Duration of Visitation: Sep, 2016 -- Aug. 2017

Former Ph.D. Students

Yan Li 

Assistant Professor

Icahn School of Medicine at Mount Sinai, June 2015 – Present

Research Scientist

New York Academy of Medicine, May 2015 – Present

Thesis: Rural Health, Long-Term Care, and Chronic Disease: Three Essays on System Design for Population Health

Personal webpage 

Zhen Zhu

Operations Consultant

American Airlines, May 2013 – Present

Co-founder and chief strategy adviser (part-time start-up)

Peray Technology Co. LTD, October 2010 – Present, Hangzhou, Zhejiang, China

Thesis: Optimal Financing Structure Mechanism Design for Traumatic Brain Injury Patients

Yu Teng

Senior Analyst and Modeler

Avenir Health, August  to Present,; Glastonbury, CT

Prevention Effectiveness Fellow

Centers for Disease Control and Prevention, August 2012 - July 2014, Atlanta, GA

Thesis: Optimal Screening Strategy Design for Chlamydia Infection in Young Women: A Hybrid Dynamic System Control Approach

Wen-Hsin Feng

Senior Engineer of IE

AUO, March 2011 –December 2014

Thesis: Simulation-based Analysis and Optimization on Recipient Prioritization for Cadaveric Liver Allocation

Mu Du, Visiting Ph.D. student, Sep. 2015 -- Aug. 2016

Currently, Ph.D. student at Dalian University of Technology, Dalian, China


M.S. Students

Chris Hagmann

Chemistry Engineering, graduated in Dec 2015.

Aditi Iyer

Electrical and Computer Engineering,  graduated in Aug 2015.

Carolina Vivas Valencia

Thesis Tittle: Cost-Effectiveness On Age- And Gender-Specific CRC Screening Strategies

Biomedical Engineering, graduated in Aug 2015.

Yuming Mo

Thesis Title: Modeling and Optimization of Care Transition

Industrial Engineering, graduated in Apr 2014

Ashwin Chandramouli

Thesis Title: Optimal Traumatic Brain Injury Acute Rehabilitation Discharge Policy: A Simulation-Optimization Approach

Industrial Engineering, graduated in Dec 2011.

Maoying Zhu

Thesis Title: Assessing Colorectal Cancer Screening and Surveillance Strategies with Colonoscopy: A Partially Observable Markov Decision Processes (POMDP) Approach

Biomedical Engineering, graduated in Aug 2010.

Satish Vijayaraghavan

Thesis Title: Allocation Region Design for the US Liver Transplantation Network: Simulation-Based Optimization Approach with Motivated Meta Modeling

Industrial Engineering, graduated in May 2010.


Current and Former Undergraduate Research assistants

Mikaela Meyer(Statistics), Aug. 2015- July 2016

Feature selection and classification development of blood sample mass spectrometer data


Sameer Manchanda(Computer Science and Applied Statistics), Aug. 2015- July 2016

Classifying mass spectrometer measurements of blood samples to indicate how long it has been since the blood was drawn 


Genmao Shi(Automation, Tsinghua University), Summer 2015

Mass spec time-series data clustering


Yuxuan Liu(Industrial Engineering) and Yikang Li(Automation, Tsinghua University), Summer 2015

Feature Extraction in Analyzing Communication Sequence Data in Shared Medical Decision Making Processes for Better Predicting Patient Satisfaction


Christine Zhang(Applied Statistics), August 2014 – December 2015

Predicting the Readmission Risks in an Acute Care Hospital


Rei Rutkowski(Mechanical Engineering), August 2014 – July 2015

Time-Series Data Analysis for Fall Detection


Apoorv Sanjay Gaur (Electrical and Computer Engineering) and Mo Li (Automation, Tsinghua University), Summer 2014

Plaque Vulnerability Characterization for Acute Coronary Syndrome using Photoacoustic Imaging Data


Kelsey Wasilczuk(Biomedical Engineering) and Shuguang Peng (Automation, Tsinghua University), Summer 2014

Feature Extraction in Analyzing Communication Sequence Data in Shared Medical Decision Making Processes for Better Predicting Patient Satisfaction


Zhouyang Lou (Statistics), Summer 2014

Feature selection in Efficient and Effective Analysis of Photoacoustic Imaging Data for Plague Vulnerability Characterization in Acute Cardiovascular Syndrome


Wenting Shi (Statistics) and Shuai Fang (Statistics), August 2013 – April 2014

Mining Patient-Physician Communication Sequence Data to Understand the Casual Factors in Shared Decision Making


Eckart(Mathematics) and Kehao Zhu  (Statistics), January 2013 – December 2013

Predicting the Readmission Risks in an Acute Care Hospital


Maggie Neff (Biomedical Engineering) and Jiali Zhou (Automation, Tsingha University, China), May 2013 – December 2013

Statistical Analysis and Data Mining for Likelihood, Timing, and Diagnosis Associated with Acute Hospital Readmission


Qi Jin (Statistics), May 2012-August 2012

A Cost-effectiveness Analysis of Age-specific Screening Strategies for Chlamydia infection


Duanyi Wei (Biomedical Engineering), May 2011-August 2011

Agent-based Simulation Study for Understanding How Initial Public Opinion on Vaccination Affects Vaccination Adherence during Infectious Disease Outbreak


David Yeung (Biomedical Engineering), May 2010-August 2010

Parameter Estimation of Chlamydia Trachomatous Transmission Dynamics


Xiaochang Li (Industrial Engineering), January 2008 – December 2008

Patient/Physician Scheduling in a Distributed Outpatient Specialty Care Delivery Network

Optimal Resource Allocation for Publically Funded Long-Term Care Provision


Xueyao Chen (Statistics), May 2008-December 2008

Mining of the U.S. Organ Transplantation and Allocation Data


Irene Brian (Statistics) and Emmanuel Jefferson (Industrial Engineering), January 2008-May 2008

Mining of the U.S. Organ Transplantation and Allocation Data