Summary

Data Scientist with expertise in data analysis, statistics, and machine learning. Over 8 years of experience in leading data-driven projects, from developing data collection and analytics pipelines, to clearly communicating results to both expert and general audiences.

Education

2015 – 2020

Doctor of Philosophy (PhD)
Cognitive Science, minor in Quantitative Methods
University of British Columbia

2013 – 2015

Master of Arts (MA)
Cognitive Science
University of British Columbia

2009 – 2013

Bachelor of Arts with Honours (BA Hons)
Psychology
University of British Columbia

Skills

Technical

  • Data analysis
  • Data cleaning
  • Data visualization
  • Data pipelines
  • A|B testing
  • Experimental design
  • Metric design and evaluation
  • Hypothesis testing

Machine learning / deep learning

  • Supervised and unsupervised learning
    • Classification
    • Regression
    • Clustering
  • Convolutional neural networks (CNN)
  • Dimensionality reduction
    • PCA
    • Latent factor methods
  • Bounding box regression

Software

  • Python
  • Pandas
  • Matplotlib
  • R
  • SPSS
  • PyTorch
  • SQL
  • Git
  • HTML, CSS, Javascript
  • Microsoft Excel, Word, Powerpoint

Statistics

  • Research methods
  • Exploratory data analysis
  • Multiple linear regression
  • Analysis of variance
  • Multivariate statistics
  • Measurement theory and psychometrics
  • Factor analysis
  • Structural equation modelling

Experience

2013 – 2020

UBC Attentional Neuroscience Lab
Research Scientist

  • Gained comprehensive working knowledge of statistical theory, with a focus on inferential statistics, distributions, and hypothesis testing.
    • Applied theoretical knowledge to the analysis of datasets for over 15 projects.
  • Constructed multiple data pipelines, from data collection, transformation/aggregation, data analysis, to reporting results.
    • Experienced with both automated and human-in-the-loop pipelines.
  • Created Python dashboards to aid cleaning of unstructured data. Reduced cleaning time by 90%.
  • Programmed open-source data collection platform to collect experiment data across 9 projects, resulting in 50% faster project completion. Link: GitHub/cognitive-battery
  • Expertise in time-series data analysis.
    • Developed algorithms to extract model features from raw multidimensional sensor data.
    • Modelled time-series data using multilevel regression and analysis of variance.
    • Created open-source Python package to analyse time-series data for measuring walking kinematics. Link: GitHub/sensormotion
  • Trained and mentored 14 undergraduate researchers across multiple concurrent projects.
  • Published results in 6 peer-reviewed journals and communicated findings at 11 research conferences.

2019 – 2020

The HIVE (Hackspace for Innovation and Visualization in Education)
Research Scientist (Mitacs Intern)

  • Evaluated the efficacy of the Microsoft HoloLens as a neuroanatomy teaching tool.
  • Designed experiments, collected and analyzed data to understand how mixed reality-based learning affects the overall student experience.
  • Provided insight into how the design of mixed reality applications could be improved.

2019 – 2020

Microsoft
Research Scientist (visiting researcher)

  • Designed and implemented algorithms for extracting novel spatial metrics from HoloLens sensors.
  • Constructed data pipeline to collect, clean, and analyse hardware sensor data.
  • Wrote reports and made recommendations to the data science team regarding the value, viability, and potential pitfalls of implementing the spatial metrics in production.

2016 – 2019

UBC Centre for Teaching, Learning and Technology
Data Scientist

  • Employed data analysis and experiments to help instructors evaluate new teaching methods.
    • Analytical approaches included exploratory data analysis, regression, and factor analysis.
  • Conducted experiments to determine whether the benefits of a novel visualization technique outweighed the cost. Results saved over $2000 in future production cost.
  • Used statistical methods to streamline a multi-institution survey. Reduced total survey length by 28%.

Projects

Webcam eye tracker

  • Developed a webcam-based eye tracker to predict real-time eye gaze location.
  • Programmed a data collection pipeline to gather unstructured webcam images and prepare the data for modelling.
  • Built deep learning computer vision architecture, using PyTorch, to model webcam images.
    • Experimented with multiple end-to-end CNN models to explore the trade-off between prediction accuracy and computational cost.
    • Hyperparameter tuning performed using successive halving techniques to reduce training time.
  • Achieved a final eye tracking error of 1cm, rivalling more expensive infrared-based approaches.

Smartphone walking kinematics

  • Published novel method to measure outdoor walking kinematics using smartphones.
  • Technical lead on international research collaboration with the University of Bristol.
  • Created data pipeline to collect time-series data and unstructured image data during outdoor walking.
  • Designed algorithms to compute walking metrics (e.g. step time, balance/instability).
  • Used regression to model the relationship between walking kinematics and cognitive function.
  • Method was faster and cheaper than traditional techniques, saving over $7000 in equipment cost.

Publications

Journal Articles

Burtan, D., Joyce, K., Burn, J. F., Handy, T. C., Ho, S., & Leonards, U. (2021). The nature effect in motion: visual exposure to environmental scenes impacts cognitive load and human gait kinematics. Royal Society Open Science. doi: 10.1098/rsos.201100

Gooderham, G. K., Ho, S., & Handy, T. C. (2020). Variability in Executive Control Performance is Predicted by Physical Activity. Frontiers in Human Neuroscience. doi: 10.3389/fnhum.2019.00463

Ho, S., Mohtadi, A., Daud, K., Leonards, U., & Handy, T. C. (2019). Using smartphone accelerometry to assess the relationship between cognitive load and gait dynamics during outdoor walking. Scientific Reports. doi: 10.1038/s41598-019-39718-w

Ho, S., Gooderham, G. K., & Handy, T. C. (2018). Self-reported free-living physical activity and executive control in young adults. PLoS ONE. doi: 10.1371/journal.pone.0209616

Cheng, J. T., Tracy, J. L., Ho, S., & Henrich, J. (2016). Listen, follow me: Dynamic vocal signals of dominance predict emergent social rank in humans. Journal of Experimental Psychology: General. doi: 10.1037/xge0000166

Ho, S., Foulsham, T., & Kingstone, A. (2015). Speaking and Listening with the Eyes: Gaze Signaling during Dyadic Interactions. PLoS ONE. doi: 10.1371/journal.pone.0136905

Theses

Ho, S. (PhD dissertation, 2020). Cognition and motion: the relationship between cognitive function, physical activity, and gait dynamics in young adults. Link: UBC Circle

Ho, S. (MA thesis, 2015). Map reading under load : sex differences in learning digital maps. Link: UBC Circle

Ho, S. (Honours thesis, 2013). Here, There, and Everywhere: Spatial Location Moderates the Effect of Self-Relevance on Memory.

Ho, S. (Honours thesis, 2012). The Role of Task Instruction in Video Game Players’ Resistance to Distraction.

Blog Posts

Presentations

Oral Presentations

Carey, K., Grain, K., Dubois, P., Roberson, N., Moosvi, F., Moghtader, B., Semenec, P., Varao-Sousa, T., Ho, S., Kn, T. N., Roll, I., Briseño-Garzón, A. (October, 2018). Graduate Students as SoTL Specialists: Facilitating Faculty-Student Collaborations in a Large University. Talk presented at the International Society for the Scholarship of Teaching and Learning conference. Bergen, Norway.

Cheng, J. T., Tracy, J. L., Ho, S., & Henrich, J. (July, 2016). Listen, follow me: Dynamic vocal signals of dominance predict emergent social rank in humans. Talk presented in the session, “Mediators of sociality”, at the annual meeting of the Human Behavior and Evolution Society. Vancouver, Canada.

Ho, S., Enns, J. T., Handy, T. C. (May, 2015). Map reading under load: Gender differences in learning digital maps. Talk presented at Psychfest. Vancouver, Canada.

Cheng, J. T., Tracy, J. L., Ho, S., & Henrich, J. (June, 2013). Listen, follow me: Changes in vocal pitch predict leader emergence. Talk presented in the symposium, “Causes and consequences of individual differences in social status: New insights from research on nonverbal behavior, neuroendocrinology, health, and self-regulatory goals” (J. T. Cheng & J. L. Tracy, Chairs), at the biennial meeting of the Association for Research in Personality. Charlotte, NC.

Cheng, J. T., Tracy, J. L., Ho, S., & Henrich, J. (May, 2013). Listen, follow me: Changes in vocal pitch predict leader emergence. Paper presented in the symposium, “Psychophysical cues to fertility, leadership capacity, trustworthiness, and health” (J.T. Cheng, & J.L. Tracy, Chairs), at the annual convention of the Association for Psychological Science. Washington, DC.

Ho. S., Truong, G., Chapman, C. S., Enns, J. T., & Handy, T. C. (March, 2013). Here, There, & Everywhere: Spatial location moderates the effect of self-relevance on memory. Talk presented at the Psychology Undergraduate Research Conference. Vancouver, Canada.

Cheng, J. T., Tracy, J. L., Ho, S., & Henrich, J. (January, 2013). Listen, follow me: Changes in vocal pitch predict leader emergence. Talk presented at the Society for Personality and Social Psychology Pre-Conference on Nonverbal Behavior. New Orleans, LA.

Poster Presentations

Ho, S., Mohtadi, A., Daud, K., Leonards, U., & Handy, T. C. (May, 2018). Walking in outdoor environments: using smartphones to assess the relationship between cognitive load and gait dynamics during outdoor walking. Poster presented at the Association for Psychological Science (APS) conference. San Francisco, USA.

Ho, S., Mohtadi, A., Daud, K., Leonards, U., & Handy, T. C. (May, 2018). Walking in outdoor environments: using smartphones to assess the relationship between cognitive load and gait dynamics during outdoor walking. Poster presented at the Canadian Action and Perception Network conference. Vancouver, Canada.

Ho, S., Daud, K., Leonards, U., & Handy, T. C. (November, 2017). Walk and Talk: The impact of attentional load on gait dynamics in young adults. Poster presented at the Society for Computers in Psychology conference. Vancouver, Canada.

Gooderham, G. K., Ho., S., & Handy, T. C. (November, 2017). Online Survey Tools in Longitudinal Cognitive Psychology Research: A Methodological Review. Poster presented at the Society for Computers in Psychology conference. Vancouver, Canada.

Ho, S. & Handy, T. C. (May, 2017). Executive function and gait dynamics in young adult populations. Poster presented at the Northwest Cognition and Memory Conference. Burnaby, Canada.

Ghanbarzehie, A., Ho, S., & Handy, T. C. (May, 2016). Examining the Impact of Physical Activity and Sleep on Sustained Attention. Poster presented at Connecting Minds conference. Vancouver, Canada.

Ho, S., Gooderham, K., & Handy, T. C. (May, 2016). Lifestyle and Cognition: The relationship between sleep, exercise, and exam performance. Poster presented at the Northwest Cognition and Memory Conference. Vancouver, Canada.

Ghanbarzehie, A., Ho, S., & Handy, T. C. (March, 2016). Examining the Impact of Physical Activity and Sleep on Sustained Attention. Poster presented at the Multidisciplinary Undergraduate Research Conference. Vancouver, Canada.

Gooderham, K., Ho, S., & Handy, T. C. (March, 2016). Lifestyle and Cognition: The relationship between sleep, exercise, and exam performance. Poster presented at the Multidisciplinary Undergraduate Research Conference. Vancouver, Canada.

Ghanbarzehie, A., Ho, S., & Handy, T. C. (March, 2016). Examining the Impact of Physical Activity and Sleep on Sustained Attention. Poster presented at the Psychology Undergraduate Research Conference. Vancouver, Canada.

Gooderham, K., Ho, S., & Handy, T. C. (March, 2016). Lifestyle and Cognition: The relationship between sleep, exercise, and exam performance. Poster presented at the Psychology Undergraduate Research Conference. Vancouver, Canada.

Tse, S., Marozoff, S., Gooderham, K., Ho, S., Enns, J. T., Handy, T. C. (May, 2015). The Effect of Cognitive Load on Learning Digital Maps. Poster presented at the Northwest Cognition and Memory Conference. Bellingham, WA.

Gooderham, K., Tse, S., Ho, S., Enns, J. T., Handy, T. C. (March, 2015). The Effect of Cognitive Load on Learning Digital Maps. Poster presented at the Psychology Undergraduate Research Conference. Vancouver, Canada.

Marozoff, S., Gooderham, K., Tse, S., Ho, S., Enns, J. T., Handy, T. C. (March, 2015). The Effect of Cognitive Load on Learning Digital Maps. Poster presented at the Multidisciplinary Undergraduate Research Conference. Vancouver, Canada.

Ho. S., Foulsham, T., & Kingstone, A. (May, 2014). Look Who’s Talking: Effect of Knowledge and Talking on Social Gaze. Poster presented at the Northwest Cognition and Memory Conference. Victoria, Canada.

Ho. S., Truong, G., Chapman, C. S., Enns, J. T., & Handy, T. C. (May, 2013). Here, There, & Everywhere: Spatial location moderates the effect of self-relevance on memory. Poster presented at the Northwest Cognition and Memory Conference. Surrey, Canada.

Ho. S., Truong, G., Chapman, C. S., Enns, J. T., & Handy, T. C. (March, 2013). Here, There, & Everywhere: Spatial location moderates the effect of self-relevance on memory. Poster presented at the Multidisciplinary Undergraduate Research Conference. Vancouver, Canada.

Chisholm, J. D., Ho, S., & Kingstone, A. (March, 2013). Why are action video game players better? A test of the ”Learning to Learn” proposal. Poster presented at Entertainment Software and Cognitive Neurotherapeutics Society. Los Angeles, California.

Cheng, J. T., Tracy, J. L., Ho, S., & Henrich, J. (January, 2013). Listen, follow me: Changes in vocal pitch predict leader emergence. Poster presented at the annual meeting of the Society for Personality and Social Psychology. New Orleans, Louisiana.

Ho, S., Chisholm, J. D., & Kingstone, A. (April, 2012). The Role of Task Instruction in Action Video Game Players’ Resistance to Distraction. Poster presented at Psychology Students’ Association Conference. Vancouver, Canada.

Teaching

Supervision

2013 – 2020

Trained and mentored 14 undergraduate researchers across multiple concurrent projects

2013 – 2020

Supervised multiple Honours, directed studies, and thesis students

2013 – 2019

Graduate Student Advisor for the Undergraduate Journal of Psychology. Provided guidance on the journal review process to editors and reviewers

Teaching Assistantships

2014 – 2015

Cognitive Neuroscience, University of British Columbia
Instructor: Dr. Todd Handy

2014

Cognitive Processes, University of British Columbia
Instructor: Dr. Todd Handy

2014

Social Psychology, University of British Columbia
Instructor: Dr. Alyssa Croft

2013

Personality Psychology, University of British Columbia
Instructor: Dr. Jessica Tracy

2013

Forensic Psychology, University of British Columbia
Instructor: Dr. Donald Dutton

Certifications

  • Neural Networks and Deep Learning by deeplearning.ai on Coursera (2019)
  • Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization by deeplearning.ai on Coursera (2019)
  • Structuring Machine Learning Projects by deeplearning.ai on Coursera (2019)

Awards

2017 – 2019

Faculty of Arts Graduate Award, UBC

2015 – 2019

Kitty Heller Foundation Fellowship, UBC

2014

Faculty of Arts Graduate Award, UBC

2013

Canadian Psychological Association (CPA) Student Award for Academic Excellence, Best Undergraduate Honours Thesis

2013

Faculty of Arts Undergraduate Research Award, UBC

2013

Outstanding Research Talk, 15th Annual UBC Psychology Undergraduate Research Conference

2012

Trek Excellence Scholarship, UBC

2012

Faculty of Arts International Student Scholarship, UBC

2012

Rosemary Stewart Scholarship, UBC

2011

Member, PsiChi International Honour Society in Psychology

2010

Rosemary Stewart Scholarship, UBC