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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.
Pages
About
About me
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Posts
Data Science Project Scoping
Published:
Yesterday, my boss gave us a fun exercise, to research ways of data science project scoping. I knew immediately that I’d love the exercise since this is something that I have been grappling with since I started working on data science projects.
Unboxing the machine learning black box in healthcare applications
Published:
Machine learning models are being quickly adopted in various industry applications because of their outstanding performance compared to traditional models such as linear regression. However, the black-box nature of many machine learning models casts doubts on their usability in practice, especially in the healthcare field. As noted by Lipton (2017), “the doctor just won’t accept that!” When health or even life is at stake, it is hard to trust a black-box algorithm that does not provide sufficient explanations for its decisions.
Blog Post number 4
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
Blog Post number 3
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
hikes
Sunset at the Bryce Canyon National Park
Published:
This was one stop on our mid-west trip during Christmas break 2016. This was the biggest group trip I organized to date. There were 9 of us. We drove from Zion National Park to view the sunset. We arrived at the park late in the afternoon. After a short visit to the visitor’s center. We stopped by a few overlooks, and then began hiking at Sunset Point. The sunshine was just right, for which I was super grateful. The Bryce Amphitheater was covered with snow, which stood in contrast with the bright orange colors of the sand stones. It was an amazing hike down into the Amphitheater, surrounded by the hoodoos of various shapes. The most notable one is probably Thor’s Hammer. The sky showed this beautiful pink red and pink blue right after sunset, which added to the surreal scenery. Close to dawn, we gradually lost sight and had to turn back.
Copper Mountain Day Hike
Published:
I successfully defended on Jan 4th and passed! Yay! (Trust me. I am a Doctor.)
UCR Botanic Gardens Hike
Published:
I visited W and we went to hike and take pictures at the UCR Botanic Gardens. It was a beautiful garden, well worth the visit. See below for some photos I took at the garden. See more photos at my instagram.
First Fiery Gizzard Trail Through Hike
Published:
Fiery Gizzard Trail is the place that re-ignited my love for hiking. I didn’t hike much during graduate school and found this gem when looking for a group outing not long after graduation. We went there in a group of 6 and were “tortured” by the big boulders and sometimes misleading trail blazers. We turned back at the Raven’s Point and took the easy way back via the Dog Hole Trail. That was my first tough hike in years and I rejoiced throughout the hike, for both the feeling of sweat and the escape to nature. Because of how special this place is, I always wanted to go back and do a through-hike.
Land Between the Lakes
Published:
A great late Fall hike. The sunshine was just perfect. Lots of newly fallen leaves on the ground. I loved the crushing sound when stepping on the leaves. We also saw bisons and turkeys at the Elk & Bison Prairie. They were pretty chill ╰⋃╯
misc
Funny misheard lyrics
I mishear lyrics pretty frequently, which always amuse myself and folks around me. Then one day I thought, well, I might as well keep a log to amuse myself later and hopefully bring some laughter to more folks. Be aware! Bad jokes ahead!
News
I am generally not a fan of sharing my life all over the Internet, but thought it’d be good to keep a record of things that I thought worth sharing. Then one day when I look back, maybe I’ll surprise me.
projects
Time Series Forecast of Walmart Sales Data
Time series forecasting is an important technique that is widely used in business settings such as stock and sales. In this project, I’ll use a powerful tool, the autoregressive integrated moving average (ARIMA) model, to forecast the Walmart sales data.
Leetcode Algorithm Questions in Python
In this blog piece, I am going to discuss my learnings from the Leetcode algorithm questions using Python as the tool.
Machine Learning with R - an mlr Starter
mlr is one of my favorite R machine learning packages. Here I wrote a walk-through of the package to help myself and hopefully be of some help to folks out there as well!
Shiny App on Medicare Part D Drug Prescription & Overdose
I created a shiny app so that we can explore the patterns in Medicare Part D drug prescription, with a focus on opioids. Fatal drug overdose pattern was also included.
R Markdown Report on Medicare Part D Drug Prescription & Overdose
I created a R Markdown report on the patterns in Medicare Part D drug prescription, with a focus on opioids. Fatal drug overdose pattern was also included.
Using R iml Package to Improve Zillow’s House Price Estimates
I participated in the Zillow Kaggle project with Jason King and JoAnn Alvarez.
A Bird’s-Eye View of Bird Strikes
I analyzed this dataset on Kaggle to gain a bird’s eye view of bird strikes.
Understanding Real-World Visual Expertise in the Multidimensional Space
I participated in the 5th Annual Vanderbilt Three Minute Thesis (3MT) Competition and made it to the final round, during which I presented on my thesis work.
Modeling the Dynamics of Visual Object Categorization
We developed and evaluated the Vanderbilt Bird Expertise Test using Item Response Theory, and modeled the mechanisms of individual differences in visual categorization.
The perception of a face can be greater than the sum of its parts
We quantified holistic processing in faces with different configural information, used R and Matlab.
publications
Face adaptation improves gender discrimination.
Published in Vision Research, 2011
We examined the adaptation patterns in face gender discrimination.
Recommended citation: Yang, H., Shen, J., Chen, J., & Fang, F. (2011). Face adaptation improves gender discrimination. Vision Research, 51(1), 105-110. doi:10.1016/j.visres.2010.10.006
https://www.sciencedirect.com/science/article/pii/S0042698910004979
Studying real-world perceptual expertise.
Published in Frontiers in Psychology, 2014
We provide a brief perspective on approaches, considerations, and challenges to studying real-world perceptual expertise.
Recommended citation: Shen, J., Mack, M. L., & Palmeri, T. J., (2014). Studying real-world perceptual expertise. Frontiers in Psychology, 5, 857. doi:10.3389/fpsyg.2014.00857 https://www.frontiersin.org/articles/10.3389/fpsyg.2014.00857/full
The perception of a face can be greater than the sum of its parts.
Published in Psychonomic Bulletin & Review, 2014
We tested the facial-feature integration index, as defined in Gold, Mundy, and Tjan (2012).
Recommended citation: Shen, J., & Palmeri, T. J., (2014). The perception of a face can be greater than the sum of its parts. Psychonomic Bulletin & Review. 1-7. doi:10.3758/s13423-014-0726-y
https://www.ncbi.nlm.nih.gov/pubmed/25228169
Modeling individual differences in visual categorization.
Published in Visual Cognition, 2016
A review on modeling individual differences in visual categorization.
Recommended citation: Shen, J., & Palmeri, T. J. (2016). Modeling individual differences in visual categorization. Visual Cognition, 24, 260-283. doi:10.1080/13506285.2016.1236053
https://www.ncbi.nlm.nih.gov/pubmed/28154496
Modeling the dynamics and representations of real-world visual expertise.
Published in Vanderbilt University Electronic Theses and Dissertations, 2018
This sums up a major body of my Ph.D. work, modeling the dynamics and representations of real-world visual expertise.
Recommended citation: Shen, J. (2018). Modeling the dynamics and representations of real-world visual expertise. Retrieved from Vanderbilt University Electronic Theses and Dissertations.
https://etd.library.vanderbilt.edu//available/etd-03242018-201027/
Multilevel reliability measures of latent scores within an Item Response Theory framework.
Published in Multivariate Behavioral Research, 2019
This paper evaluated multilevel reliability measures in two-level nested designs (e.g., students nested within teachers) within a multilevel item response theory (IRT) framework.
Recommended citation: Cho S.-J., Shen, J., & Naveiras, M. (2019). Multilevel reliability measures of latent scores within an Item Response Theory framework. Multivariate Behavioral Research.
https://doi.org/10.1080/00273171.2019.1596780
Modeling Intensive Polytomous Time-Series Eye-Tracking Data: A Dynamic Tree-Based Item Response Model.
Published in Psychometrika, 2020
A dynamic generalized linear mixed effects model (GLMM) approach to modeling a multinomial processing tree for intensive polytomous time series eye tracking data.
Recommended citation: Cho S.-J., Brown-Schmidt S., De Boeck P., Shen J. (2020). Modeling Intensive Polytomous Time-Series Eye-Tracking Data: A Dynamic Tree-Based Item Response Model. Psychometrika, 85, 154–184. doi:10.1007/s11336-020-09694-6
https://doi.org/10.1007/s11336-020-09694-6
Modeling the dynamics of real-world visual expertise.
Published in , 2033
We modeled the responses in the Speeded Category-Veification Task by participants with varying levels of expertise to understand the dynamics of visual expertise.
Recommended citation: Shen J. & Palmeri T. J. (manuscript). Modeling the dynamics of real-world visual expertise.
teaching
Teaching experience 1
Undergraduate course, University 1, Department, 2014
This is a description of a teaching experience. You can use markdown like any other post.
Teaching experience 2
Workshop, University 1, Department, 2015
This is a description of a teaching experience. You can use markdown like any other post.