Samuel Rivera

ab9af5@r.postjobfree.com 302-***-**** **3 Beech Street, Columbus, OH 43206

Profile

Engineer with eye tracking, machine learning, computer vision, algorithm development, and statistical modeling experience.

Education

PhD, Electrical Engineering, The Ohio State University, Columbus, OH ( GPA: 3.665/4.0) December 16, 2012

-Specialization: machine learning, pattern recognition, computer vision, eye tracking

MS, Electrical Engineering, The Ohio State University, Columbus, OH March 18, 2012

-Awarded upon becoming a PhD candidate

BE, Electrical Engineering, University of Delaware, Newark, DE (GPA: 3.480/4.0) May 15, 2007

-Minors: Math and Physics; Specialization: signal processing

Research interests

Eye tracking, face and emotion perception, categorization, machine learning, pattern recognition, computer vision, shape

detection, probabilistic graphical models, kernel methods, perception and learning

Experience

Research Assistant, The Ohio State University December 15, 2007 - December 15, 2012

PI: Dr. Aleix Martinez of the Computational Biology and Cognitive Science Lab (CBCSL). The CBCSL applies pattern

recognition to problems in computer vision, cognitive science, and developmental psychology to name a few.

• Worked in teams to define approach to solving computer vision and pattern recognition research problems

• Developed algorithms for detailed shape detection using kernel regression and probabilistic graphical models

• Defined and implemented research strategies to identify dimensions relevant to emotion perception from faces

• Applied statistical analysis and machine learning to problems of developmental psychology and cognitive science

• Published and presented research in journals and conferences through oral and poster presentations

• Drafted grant proposals and technical documents to obtain new funding and document research

Center for Cognitive Sciences Fellow, The Ohio State University June 1, 2011 - September 1, 2011

PIs: Dr. Vladimir M. Sloutsky and Dr. Dirk B. Walther of the Department of Psychology, and Dr. Aleix Martinez of the

Electrical and Computer Engineering department.

• Awarded fellowship for best interdisciplinary research project proposal

• Analyzed high dimensional eye track data to identify relevant patterns using SVM, LDA, ANOVA, and other techniques

• Implemented MATLAB toolbox with documentation for eye tracking analysis and visualization

Ronald McNair Program Office Assistant, University of Delaware September 15, 2006 - September 15, 2007

Director: Dr. Maria Palacas.

• Planned and implemented graduate school fairs for entire 30,000 student population

• Coordinated educational trips and activities for Ronald McNair scholars

Qualifications

• Languages: MATLAB, C/C++, Psychtoolbox, LTEX A

• Operating Systems: Microsoft Windows, Linux, Mac OSX

• Software: OpenCV, Experiment Builder, Microsoft Word, Excel, PowerPoint, Beamer

• Relevant Courses: computer vision, pattern recognition, applied regression analysis, numerical optimization, linear alge-

bra, elements of statistical learning, nonparametric function estimation, random signal analysis and random processes

Publications

Rivera, Samuel. (2012). Computational Methods for the Study of Face Perception. (Doctoral dissertation). Retrieved from

ProQuest Dissertations and Theses. (Accession Order No. AAT 3535204)

Rivera, S., Best, C., Yim, H., Martinez, A., Sloutsky, V., & Walther, D. (2012). Automatic selection of eye tracking variables

in visual categorization for adults and infants. In N. Miyake, D. Peebles, & R. P. Cooper (Eds.), Proceedings of the 34th

Annual Conference of the Cognitive Science Society (pp. 2240-2245). Austin, TX: Cognitive Science Society.

Samuel Rivera and Aleix M. Martinez. Learning Deformable Shape Manifolds.

Pattern Recognition, Vol. 45, No. 4, pp. 17921801, 2012.

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Talks and Presentations

The emotion category of expressive faces becomes more influential over development

Presented as SRCD 2013, Seattle, WA, USA April 19, 2013

Automatic selection of eye tracking variables uncovers similar mechanisms for visual categorization in adults and

infants

Presented at VSS 2012, Naples, FL, USA May 7, 2012

Understanding Category Learning From Eye Tracking

Presented at the Center for Cognitive Science at The Ohio State University October 7, 2011

Biologically-Inspired Face Shape Detection, with Dr. Aleix Martinez

John D. and Alice Nelson Kraus Memorial Student Poster Contest September 12, 2009

COGFEST May 1, 2009

Deformable Shape Detection, with Dr. Aleix Martinez

Ohio State Biomedical Engineering Conference May 15, 2009

Hosted by the Ohio State University Department of Biomedical Engineering

LSB Steganalysis of Grayscale Images, with Dr. Charles Boncelet

9th Annual Alliance for Minority Participation (AMP) Research Symposium November 5, 2006

Ronald E. McNair Scholars 7th Annual Research Symposium August 15, 2006

Real Time Haptic Visualization with MATLAB, with Dr. Kenneth Barner

McNair 3rd Annual National Conference September 15, 2005

Ronald E. McNair Scholars 6th Annual Research Symposium, University of Delaware August 15, 2005

Teaching Experience

The Ohio State University, Columbus, OH, USA

Teaching Assistant, Introduction to Circuits Winter and Spring, 2009 and 2011

• Planned and taught two 48 minute lectures a week and held office hours

• Designed and graded quizzes, homeworks, and exams to test understanding of introductory circuit concepts

University of Delaware, Newark, DE, USA

Resources to Insure Successful Engineers (RISE) Mentor August 15, 2005 - May 15, 2007

• Mentored freshman engineering students in an effort to improve retention rates of minority engineering students

• Taught mentees about campus resources and how to be a successful student

Each One Reach One (EORO) Mentor August 15, 2004 - May 15, 2007

• Mentored freshman students from underrepresented groups to improve graduation rate of minorities in higher education

University of the Virgin Islands, St. Croix, VI, USA

Math and Science Mentor August 15, 2002 - May 15, 2003

• Mentored high school seniors in order to encourage interest in the math and science fields

• Tutored mentees in math and science courses and provided resources about colleges and scholarships

Honors and Awards

• Research Assistantship, The Ohio State University, September 2008 to December 2012

• Center for Cognitive Science fellowship, The Ohio State University, June to August 2011

Awarded 1st place at John D. and Alice Nelson Kraus Memorial poster competition, The Ohio State University, 2009

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• University Fellow, The Ohio State University, September 2007 to August 2008

• President of Caribbean Student Alliance, University of Delaware, 2006

• Vice President of Eta Kappa Nu, University of Delaware, 2006

Awarded 2nd place at 9th Annual Philadelphia AMP Research Symposium, University of Delaware, November 5, 2006

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• Ronald E. McNair Leadership Award, University of Delaware, in August 2006

• Ronald E. McNair Scholar, University of Delaware, June 2005 to August 2007

• Liston A. Houston Scholarship, University of Delaware, Fall 2004

• Latino Student of Distinction, University of Delaware, May 2004 to May 2007

Society Memberships

Vision Sciences Society (VSS) Graduate Student Member, May 2012 - May 2013

Institute of Electrical and Electronics Engineers (IEEE) Graduate Student Member, 2008 - 2012

Alpha Psi Lambda, Inc. March 2008

Tau Beta Pi, Engineering Honor Society December 2006

Eta Kappa Nu, Electrical Engineering Honor Society April 2006

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