Talks

2023

• [Seminar] Pérez, E. “A Simulation-driven Online Scheduling Algorithm for the Maintenance and Operation of Wind Farm Systems” Informs Rocky Mountains Seminar Series, Golden CO, Nov 30, 2023.
• Zertuche, D., D. Martinez, and E. Pérez, "A Simulation Based Strategy for Dynamic Workforce Allocation and Checkpoint Configuration in Airport Screening Facilities", IISE Annual Conference, New Orleans LA, May 20 - 23, 2023.
• Saha, S., A. Sharotry, F. A. Mendez Mediavilla, J. Jimenez and E. Pérez, "Productivity and reliability of people with disability: A literature review", IISE Annual Conference, New Orleans LA, May 20 - 23, 2023.
• Pérez, E. "Providing Continuity of Care for Chronic Diseases After Natural Disasters: A Resource Allocation Model for Public Health Preparedness in Texas", 2023 Texas State University Health Scholar Showcase, San Marcos TX, Mar 3, 2023.
• Pérez, E. A Data Analysis Study to Determine Factors Associated with COVID-19 Cases Spread in Texas", 2023 Texas State University Our COVID Experience: Day of Reflection, San Marcos TX, Mar 7, 2023.

2022

• Kothamasu, M., E. Pérez, and F.A. Mendez Mediavilla , “Modeling and simulation of food bank disaster relief operations”, 2022 Winter Simulation Conference, Singapore, Dec. 11-14, 2022. ​
• Joshi, A., E. Pérez, and F.A. Méndez Mediavilla "Trauma care center network planning for COVID-19: A two-stage stochastic programming framework", INFORMS Annual Conference, Indianapolis IN, Oct 16-19,  2022 (invited).​​
• Streber, H., K. Streber, M. Van, and E. Pérez, "Planning the trauma hospital network expansion to increase access in rural communities", IISE Annual Conference, Seattle WA, May 21 - 24, 2022.
• Subramanian, P., E. Pérez., and F.A. Méndez Mediavilla “Modeling and Optimization of Security Screening Resources in Airport Terminal Checkpoints”, Conference on Statistical Practice, virtual, Feb 1-3, 2022.
• Pérez, E., F.A. Méndez Mediavilla, S. Greer, M. Van, K. Skidmore, and K. Williams  "A Data Analysis Study to Determine Factors Associated with COVID-19 Cases Spread in Texas ", Healthcare Systems Process Improvement Conference, Orlando FL, Jan 19-21, 2022.

2021​

• Pérez, E., L. Taunton, and J.A. Sefair, “A Simulation Based Optimization Approach to Improve the Allocation of Airport Security Screening Resources in Airport Terminal Checkpoints”, 2021 Winter Simulation Conference. ​
• Pérez, E. and J. Pagán "A Decision-Making Model to Optimize the Impact of Community-Based Health Programs", INFORMS Annual Conference, Anaheim CA, Oct 24-27,  2021 (invited).​​
• Pérez, E. and F.A. Méndez Mediavilla "Factors Associated with COVID-19 Cases Spread in Texas", INFORMS Healthcare Conference, Virtual, Jul 23 - 25, 2021.
• Kothamasu, M., E. Pérez, and F.A. Mendez Mediavilla "A Deep Learning Time-Series Forecasting of Disaster Relief Donations for Food Banks", IISE Annual Conference, Virtual, May 23 - 25, 2021.
• Kothamasu, M., E. Pérez, and F.A. Méndez Mediavilla "A Stochastic Programming Model for Food Bank Disaster Relief Operations", IISE Annual Conference, Virtual, May 23 - 25, 2021.
• ​Pérez, E. and J. Pagán "A Location Model to Improve Access to Healthy Food Markets", 2021 Virtual Health Scholar Showcase, Virtual, Apr 12 - 16, 2021 (invited).
• ​​Pérez, E. "Forecasting and Stochastic Programming Models to Address Uncertainty in the Trauma System Configuration Problem", University of Houston, April 23, 2021. (invited).

2020

• ​Pérez, E. and J. Pagán "A Location Model to Improve Access to Healthy Food Markets," INFORMS Annual Conference, Virtual, Nov 7 - 13, 2020 (invited).
• Pérez, E. "Availability and Utilization of Key Healthcare Resources during the COVID-19 Pandemic in Rural Texas", Better Healthcare through Systems Engineering Seminar Series- University of Michigan, Dec. 7, 2020.
• Pérez, E. and A. Joshi “Identification and Analysis of Key Dynamics Required for Sustainable Planning of the Texas Trauma System”, Texas Statewide Health Coordinating Council (SHCC), Oct 15, 2020.
• Pérez, E. and L. Taunton “A Simulation-Optimization Approach to Improve the Allocation of Airport Security Screening Resources in Airport Terminal Checkpoints”, INFORMS Advances in Data Science & OR Virtual Conference, Sep 23, 2020.
• Pérez, E. and L. Taunton “A Simulation-Optimization Approach to Improve the Allocation of Airport Security Screening Resources in Airport Terminal Checkpoints”, DHS Center for Accelerating Operational Efficiency -ASU, Aug 14, 2020. 

2019

• Sajan, M., E. Pérez, and A. Schwarz "A Decision Support Framework for Augmentative and Alternative Communication Device Selection," IISE Annual Conference, Orlando FL, May 18 - May 21, 2019. (invited).
• Sajan, M., E. Pérez, and A. Schwarz "A Systems Engineering Approach to Designing a Mobile Assessment Clinic for Patients in Need of Assistive Technology," IISE Annual Conference, Orlando FL, May 18 - May 21, 2019. 

​​2018​ 

• Sajan, M., E. Pérez, and A.L. Schwarz "An Optimization-Based Algorithm for Assistive Technology Equipment Assignment" IISE Annual Conference, Orlando FL, May 19 - May 22, 2018.
• ​Ochoa, E., E. Pérez, and J. Jimenez "A Minimal Technology Routing System for Food Banks Mobile Food Pantry Programs," INFORMS Annual Conference, Phoenix, AZ, Nov 4 - 7, 2018 (invited).
• Sajan, M., E. Pérez, and A. Schwarz "A Decision Support System for Augmentative and Alternative Communication Device Selection," INFORMS Annual Conference, Phoenix, AZ, Nov 4 - 7, 2018 (invited).
• E. Pérez "Panel: Job Search Strategies for Academic Positions," INFORMS Annual Conference, Phoenix, AZ, Nov 4 - 7, 2018.
• Pérez, E. "Opportunities and Challenges in Patient Service Customization", INFORMS Annual Conference, Phoenix, AZ, Nov 4 - 7, 2018. (invited-MIF Early Career Award).

2017​ 

• Reese, H., V. Anandhan, E. Pérez, and C. Novoa "Minimizing Patient Waiting Time at a Pure Walk-In Clinic". Proceedings of the 2017 Winter Simulation Conference, Las Vegas, NV, December 3-6, 2017. 
• Pérez, E., “Integrating Mathematical Optimization in DEVS for Nuclear Medicine Patient and Resource Scheduling”. Proceedings of the 2017 Winter Simulation Conference, Las Vegas, NV, December 3-6, 2017.
• ​​Anandhan, V. and E. Pérez, "Minimizing Patient Waiting Time At A Pure Walk-in Clinic," INFORMS Annual Conference, Houston, TX, Oct 22 - 25, 2017 (invited).
• Pérez, E. "Opportunities and Challenges in Patient Service Cusomization", 2017 IEEE Innovation Summit in Health and Technology, Austin TX, Sept. 8, 2017 (invited-Keynote Speaker).
• Pérez, E., D.P. Dzubay, and A. Stahl "Scheduling Hospitalists Considering Patient's Perception of Quality of Care," IISE Annual Conference, Pittsburg PA, May 20 - May 23, 2017 (invited).
• ​Pérez, E., D.P. Dzubay, and A. Stahl "A Data Drive Approach for Assessing and Improving Patient Experience of Care," INFORMS Computing Society Conference - Healthcare Analytics, Austin, TX, Jan 15 - 17, 2017.

2016

• Dzubay, D.P., and E. Pérez "The Impact of System Factors  on  Patient  Perceptions of Quality of Care", Proceedings of the 2016 Winter Simulation Conference, Washington, DC, Dec 11-14, 2016.
• Pérez, E., D.P. Dzubay, and A. Stahl "Association Between Staff Behavior And Patient Experience Of Care In Acute-care Hospitals," INFORMS Annual Conference, Nashville, TN, Nov 13 - 16, 2016 (invited).
• Pérez, E. "A Simulation Optimization Framework for Scheduling Preventive Maintenance in Wind Energy Systems," INFORMS Annual Conference, Nashville, TN, Nov 13 - 16, 2016 (invited).
• Pérez, E. and D.P. Dzubay "Improving Patient Experience of Care in Acute Care Hospitals," TEXAS A&M University ISE Seminar Series, College Station TX, April 26, 2016 (invited).
• Pérez, E. "Improving Healthcare Systems," TEES Annual Research Conference, College Station TX, June 7, 2016 (invited).
• Pérez, E. "Data-Driven Operation and Maintenance of Wind Energy Systems under Uncertainty,” 2016 Annual Review if the AFOSR DDDAS Program, Arlington, VA, Jan. 27 - 29, 2016 (invited).

2015

• Walker, D., E. Shanks, D. Montoya, C. Weiman, E. Pérez, and L. DePagter, "Towards a Simulation based Methodology for Scheduling Patient and Providers at Outpatient Clinics", Proceedings of the 2015 Winter Simulation Conference, Huntington Beach, CA, Dec 6-9, 2015.
• Pérez, E. "Assessing CAUTI Prevention Interventions in Intensive Care Units," INFORMS Annual Conference, Philadelphia PN,  Nov 1 - 4, 2015 (invited).
• Dzubay, D. and E. Pérez "Improving Patient Experience of Care in Acute Care Hospitals,"  IIE Annual Conference, Nashville TN, May 30 - June 2, 2015 (invited).
• Pérez, E., B. Uyan, S.H. Fenton, and R.E. Rohde "Analyzing CAUTI Prevention Strategies: A Discrete-Event Simulation Study," IIE Annual Conference, Nashville TN, May 30 - June 2, 2015 (invited).

2014

• Huggins, A., D. Claudio, and E. Pérez, "Improving Resource Utilization in a Cancer Clinic: An Optimization Model", IIE Annual Conference, Montreal Canada, May 30- Jun 2, 2014. (Invited Talk) 
• Pérez, E. and B. Uyan "Analyzing CAUTI Prevention Strategies: A Discrete-Event Simulation Study," INFORMS Annual Conference, San Francisco CA,  Nov 9 - 14, 2014.
• Sowle, T., N. Gardini,  F. Vazquez Arroyo Vazquez, E. Pérez, J.J. Jimenez, and L. DePagter, 2014, " A Simulation-IP based tool for Patient Admission Services in a Multi-Specialty Outpatient Clinic", Proceedings of the 2014 Winter Simulation Conference, Sabannah, GA, Dec 7-10, 2014.

2013

• Mocarzel, B., B. Uyan, D. Shelton,  E. Pérez, J.J. Jimenez, and L. DePagter "Modeling and Simulation of Patient Admission Services in a Multi-Specialty Outpatient Clinic",  Proceedings of the 2013 Winter Simulation Conference, Washington, DC, December 8-11, 2013.
• Pérez, E., "Appointment Scheduling for a Server with Sequence-Dependent Deteriorating Effects," INFORMS Annual Conference, Minneapolis  MN,  Oct 6 - 9, 2013 (invited).
• Pérez, E. and L. Ntaimo, "Stochastic Online Appointment Scheduling of Multi-Step Sequential Procedures in Nuclear Medicine," INFORMS Healthcare 2013, Chicago IL,  June 23 - 26, 2013.
• Ntaimo, L., M. Alvarado, T. Cotton, E. Pérez "DEVS-CHEMO: A Discrete Event Simulation for Oncology Clinic Operations," INFORMS Healthcare 2013, Chicago IL,  June 23 - 26, 2013.
• Pérez, E.,  L. Ntaimo, and Y. Ding "Simulation of Wind Farm Operations and Maintenance," ASME Turbo Expo 2013, San Antonio TX, June 1 - 7, 2013. 
• Barry, J., J. Medellin, J. Piechota, M. Harris, T. Jin, and E. Pérez, "Power Quality and Reliability-Based Optimization for Distributed Renewable Energy Systems" IIE Annual Conference, San Juan PR,  May 18 - 22, 2013. (Invited Talk) 
• Pérez, E. and A. J. Ruiz-Torres, "Scheduling Job Start Times for a Server with Sequence-Dependent Deteriorating Effects" IIE Annual Conference, San Juan PR,  May 18 - 22, 2013. (invited) 

2012

• Pérez, E. and L. Ntaimo, "Integrating Mathematical Optimization in DEVS for Nuclear Medicine Patient and Resource Scheduling," INFORMS Annual Conference, Phoenix AZ,  Oct 12 - 17, 2012.
• T. Cotton, T., M. McGaha, L. Ntaimo, and E. Pérez, "Mean-Risk Stochastic Optimization Approach to Chemotherapy Scheduling," INFORMS Annual Conference, Phoenix AZ,  Oct 12 - 17, 2012. 
• McGaha, M, T. Cotton, L. Ntaimo, and E. Pérez, "Modeling and Simulation of an Oncology Clinic using DEVS," INFORMS Annual Conference, Phoenix AZ,  Oct 12 - 17, 2012.
• Pérez, E., Y. Wang, L. Ntaimo, and Y. Ding "Modeling and Simulation of Wind Farm Operations and Maintenance," IIE Annual Conference, Orlando FL,  May 19 - 23, 2012. (Invited Talk) 
• T. Cotton, T., M. McGaha, L. Ntaimo, and E. Pérez, "Mean-Risk Stochastic Programming Approach to Chemotherapy Patient & Resource Scheduling," IIE Annual Conference, Orlando FL,  May 19 - 23, 2012. (Invited Talk)  

2011

• Pérez, E.,  L. Ntaimo, E. Byon, and Y. Ding, "Modeling and Simulation of Wind Energy Systems Operations in DEVS," INFORMS Annual Conference, Charlotte, NC Nov 13 - 16, 2011. (Invited Talk)
• McGaha, M, T. Cotton, L. Ntaimo, and E. Pérez, "A Stochastic Integer Programming Approach to Chemotherapy Scheduling," INFORMS Annual Conference, Charlotte, NC Nov 13 - 16, 2011.
• T. Cotton, T., M. McGaha, L. Ntaimo, and E. Pérez, "Scheduling Oncology Patients using a Mean-Risk Stochastic Programming Approach," INFORMS Annual Conference, Charlotte, NC Nov 13 - 16, 2011.
• Polansky, R.,  Y.M. Ko,  Gallego J, E. Perez, L. Ntaimo and N. Gautam, "Unified Approach to the Energy Efficiency Problem in Data Centers" INFORMS Annual Conference, Charlotte, NC Nov 13 - 16, 2011.
• Pérez, E. and L. Ntaimo, "Simulation and Optimization Models for Scheduling Multi-Step Sequential Procedures in Nuclear Medicine," Rochester Institute of Technology (RIT), Rochester, NY   Sept. 30, 2011. (Seminar) 
• Byon, E., E. Perez, Y. Ding, and L. Ntaimo, "Simulation and Optimization of Wind Energy Systems under Uncertainty ,"2011 Energy Forum - Energy Security & Sustainability , College Station, TX   Feb 1 - 2, 2011. (Poster Presentation)  
• Gallego J, Y.M. Ko, R. Polansky, E. Perez, L. Ntaimo and N. Gautam, “Resource Allocation in Data Centers for Energy Efficiency,” NSF CMMI Research and Innovation Conference,  Atlanta, GA  Jan 4-7, 2011. (Poster Presentation)

2010

• Pérez, E., L. Ntaimo and C. Malavé, "Stochastic Online Scheduling of Multi-Step Sequential Medical Procedures in Nuclear Medicine, "INFORMS Annual Conference, Austin, TX   Nov 7 - 10, 2010. (Invited Talk)  
• Pérez, E., L. Ntaimo, E. Byon, and Y. Ding, “A stochastic DEVS wind turbine component model for wind farm simulation” Proceedings of 2010 Spring Simulation Multi-Conference, Orlando, FL  April 11– 15, 2010. (Invited Talk)
• Pérez, E. and L. Ntaimo, "Improving Patient Service Management In Hospital Nuclear Medicine Departments," Center for Health Organization Transformation 2010 Semi-Annual Winter Meeting, Houston, TX   Feb 25 - 26, 2010. (Poster Presentation)

2009

• Pérez, E., L. Ntaimo and C. Malave, "Nuclear Medicine Patient and Resource Scheduling via Stochastic Integer Programming, "INFORMS Annual Conference, San Diego, CA   Oct 11 - 14, 2009. (Invited Talk)
• Pérez, E., Byon, E., Ding, Y. and L. Ntaimo, "Modeling and Simulation of Wind Farm Maintenance Operations in DEVS,"INFORMS Annual Conference, San Diego, CA   Oct 11 - 14, 2009. (Invited Talk)  
• Pérez, E., L. Ntaimo and C. Malave, "Scheduling of Multistep Medical Diagnosis Procedures in Health Nuclear Medicine Departments (NMDs),"POMS Annual Conference, Orlando, FL,  May 1 - 4, 2009. (Invited Talk)

2008

• Pérez, E. and L. Ntaimo, "Patient Scheduling in Healthcare Nuclear Medicine Departments (NMDs),"INFORMS Annual Conference, Washington D.C.,  Oct 13 - 15, 2008.  
• Pérez, E. and L. Ntaimo, "Managing Patients in Healthcare Nuclear Medicine Departments (NMDs)," IIE Annual Conference, Vancouver B.C.,  May 17 - 21, 2008.

• Dwight Look College of Engineering, Discover Engineering, July 26, 2009, “Simulation Demo,” Presented to high school students interested in pursuing engineering careers.