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Ryan Quanpublic health researcher / data enthusiast
http://www.ryancquan.com/
public health researcher / data enthusiast
http://www.ryancquan.com/
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Ryan Quan | ryancquan.com Reviews
https://ryancquan.com
public health researcher / data enthusiast
ryancquan.com
CV
https://ryancquan.com/cv
Mailman School of Public Health, Columbia University. MPH, Public Health Informatics. Relevant Coursework: Data Mining, Data Visualization, Methods in Biomedical Informatics. University of California, Berkeley. BS, Microbial Biology. Leveraging computational statistics and machine learning to extract information from data, build useful models, and drive better decisions. Transforming raw numbers into narrative visualizations that communicate technical ideas and insights to non-technical audiences. Led R ...
Image Compression with PCA
https://ryancquan.com/blog/2014/10/07/image-compression-pca
Image Compression with PCA. Ever wonder how various graphics software are able to reduce the file size of your image without a significant loss in quality? Welcome to the world of image compression. Expanding on a previous post. In which I used principal component analysis (PCA) to generate so-called eigenfaces. I will be using the infamous Lenna. Image to demonstrate how the same technique can be used to compress images and reduce file size. Now that we are working with a matrix, we can do some fun stat...
Exploring New York City Council Meetings Data
https://ryancquan.com/blog/2014/09/11/new-york-city-council-meetings-annual-trends
Exploring New York City Council Meetings Data. If you haven’t noticed from my previous blog posts on New York City 311 complaints. I am a huge fan of using data to improve local politics and municipal policies. We often hear of data science in the context of training recommendation engines for behemoths like Amazon and Netflix, but with cities like New York pushing for open data. Even a small-time data wrangler like myself can provide (hopefully) useful insights for my community. Let’s dive into the data!
In Yo Face Machine Learning
https://ryancquan.com/2014/12/15/knn-faces
In Yo Face Machine Learning. December 15, 2014. Varying the Training/Testing Set Divide. The goal of this project is to build a simple classifier using the k-nearest neighbors algorithm in order to identify unique faces from the Extended Yale Faces Database B. This task will require us to wrangle image data and create new features so that we can pass our data into our. And have the dimensions of 192 pixels by 168 pixels. To build our k-nearest neighbors classifier, we will take the following approach:.
Projects
https://ryancquan.com/projects
Predicting Sepsis in the Intensive Care Unit. Building a classifier on large-scale EHR data. To accurately predict a common hospital complication within the ICU and improve patient outcomes. Analytics: Naive Bayes, logistic regression, time-series forecasting, decision trees, support vector machines. Tools: PostgreSQL, Unix shell, R (ggplot2, caret), Python (sklearn). Analytics: sentiment analysis, natural language processing. Tools: R, Python. Mental Health and Substance Use in New York City. Analytics:...
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Ryan Quan
NYC Playgrounds by Neighborhood. If you’ve never found yourself wishing to be young again, New York City will certainly change that. With access to over 1200 recreational play areas chock-full of fun and interactive playthings, life is good for an NYC kid. Heck, some playgrounds are even equipped with spinning water wheels. And giant building blocks. Well, you should be. Read More ». Sleep Data Analysis with R. I have been keeping track of my sleep for over two years using the Sleep Cycle. Back in Octobe...
ryancr's space | technical notes and troubleshooting
Technical notes and troubleshooting. 8220;No valid certificates were found on this smart card”. June 30, 2015. At work we use smart cards for TFA and largely for accessing company resources remotely. I’m currently using a Gemalto .NET smart card with an OMNIKEY Cardman 6121 a SIM-sized SC plugged into a USB dongle which is more convenient than the older full-sized SC and wired Omnikey 3021 used previously. Can be interpreted as (I feel). We found certs, but none of them are valid. So I spent some extra c...
Ryan's portfolio
:: Ryan Crabbe :: Freelance Creative Designer ::
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Ryan Crabbe
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Nanaimo Writer, Editor and Content Expert – Ryan Cracknell
Your H1 Headline Goes Right Here. Great for SEO! Your H2 Subheadline Here. Properly structured landing page is big part of the Search Engine Optimization. Shell is a hassle-free WordPress CMS Theme. All of the content on this landing page is fully manageable directly from Theme Options, including call-to-action button and its destination. 2015 Nanaimo Writer, Editor and Content Expert – Ryan Cracknell. Uarr; Scroll to Top.
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