I've loved computers since I was 5 years old.

Consulting

R&D, Software, Technology, Company Strategy, Deck Review, etc.

ClinicalBERT: Using a Deep Learning Transformer Model to Predict Readmission

I use ClinicalBERT (BERT pretrained on clinical notes) to predict readmission using only notes from a patient's first few days (not discharge notes). This prediction allows Doctors to actively intervene & prevent readmission while a patient is still in the hospital.

• PyTorch, Predictive modeling, NVIDIA GPU, AWS SageMaker, Self-Attention, Encoder, Transformer, Transfer Learning, Fine-tuning

Predicting Hospital Readmission using NLP

I built a machine learning model to predict 30-day unplanned hospital re-admission using over 2 million rows of clinical notes (including discharge notes). My approach (AUC=0.83) outperformed the baseline results by 13 points.

• Healthcare, classification, predictive analytics, hyperparameter tuning, clinical free-text notes
• AUC, prevalence, recall, precision, ROC, balancing data
• Scikit-learn, bag-of-words, logistic regression, evaluating performance, learning curve

NLP & Stand-Up Comedy

I walk through text pre-processing and machine learning techniques to answer the question “What makes Ali Wong’s comedy routine stand out?” I do exploratory data analysis on 12 comedian’s routines.

• Sentiment Analysis — TextBlob
• Topic Modeling — NLTK, gensim, Latent Dirichlet Allocation (LDA)
• Exploratory Data Analysis — matplotlib, wordcloud
• Text Pre-Processing — scikit-learn, pandas, requests, document-term matrix / bag of words

GitLinks web app (acquired by Infor)

I founded GitLinks. GitLinks is an application security, vulnerability management portal that continuously monitors. It supports Java, Javascript (npm) & Python. It integrates with all Continuous Integration (CI) tools like Jenkins, TeamCity, CircleCI, CodeShip etc. Screenshots.

Apple watch + iPhone motion authentication

This project uses Swift, Python and a REST API on Heroku. The app verifies a user's identity via motion. The X, Y, and Z g-force measurements from the accelerometer of the iPhone and Apple watch are compared for similarity using a combination of Cosine Similarity and Dynamic Time Warping. Watch video for a match. Watch video for a non-match.

Scoring Engine

In this concept I created a Trust Score (using data science), as a standard in evaluating risk in open source software. The score represented the support level behind an open source project. The 4 categories that made up the score were community support, maturity, popularity and corporate backing.

JP Morgan smart contracts on blockchain

I worked with JP Morgan & built a platform for the creation of blockchain-based contracts for trading futures. A future is an agreement between two parties to buy or sell assets at a fixed price to be delivered/paid for later. These smart contracts lived on the Ethereum blockchain & were written in Solidity.

Medical Search Engine

I created a novel medical search engine that could search PubMed based on a combination of CPT code and ICD-10 code mapping (or ICD-9 code) and display the most relevant articles. Read the report or checkout GitHub.

EasyWeave marketplace (Sold)

I founded EasyWeave. EasyWeave is a marketplace platform that connects manufacturers in Asia to buyers across the globe. I created a centralized marketplace with honest reviews. I designed the system architecture from ground up.