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UMD Data Exploration and Visualization
Oct 2019 ~ Nov 2019This is an individual full-cycle data science project to analyze real-world dataset provided by a non-profit organization. There are three phases for this project: exploratory data analysis, visualization dashboard implementation, and data modeling which leads to a conclusion. Statistical models, particularly linear regression, ANOVA are applied to determine the significance of the trend. R shiny is used to render the interactive dashboard. Make serves as the workflow manager and Docker is used to define execution environments appropriately.
R | Python | ggplot | R Shiny | Docker | Bash
JavaScript - 2048 Game
Oct 2019 ~ Nov 2019This project aims at building a working replica of the famous smart phone game 2048 in the browser from the ground up using HTML, CSS and JavaScript. The model code is encapsulated in the Game class and the view and controller drives the model on a web page.
JavaScript | engine | HTML/CSS | Bulma
Click to see my Web Applications and Machine Learning Projects !
Click to see my Web Applications and Machine Learning Projects !
Testbot: A Chatbot-Based Interactive Interview Preparation Application
Jan 2020 ~ May 2020
As my Master's thesis paper, I designed an efficient and accurate chatbot to help students prepare interviews in data science field. I deployed and customized an open-source chatbot framework Rasa and set a form action to keep track of the conversation. Testbot now supports basic functions such as responding to greetings and chitchat, and more advanced features that could recognize interview requests, ask for user-generated keywords to retrieve questions from the database, score users’ answers, and send feedback. I integrated this bot on a web application using Python Flask framework.
Python | Flask | Rasa | Sentence Similarity | JavaScript
EasyAccess: A College Search Mobile App
May 2020 ~ Aug 2020
Easy Access is a start-up company focusing on creating an intuitive and effective app for college applicants and high school counselors to find the perfect college for each student and guide them through the process. I led a team of 5 to improve the backend algorithm for college search and redesign the user interface to support advanced functions. We implemented a personalized and flexible algorithm that provides tier-based target universities based on students' selectivity, affordability, and individual preferences. To frequently deliver the product to our clients, we deployed our backend to Heroku and hosted our app on Expo to provide a living application.
Easy Access is a start-up company focusing on creating an intuitive and effective app for college applicants and high school counselors to find the perfect college for each student and guide them through the process. I led a team of 5 to improve the backend algorithm for college search and redesign the user interface to support advanced functions. We implemented a personalized and flexible algorithm that provides tier-based target universities based on students' selectivity, affordability, and individual preferences. To frequently deliver the product to our clients, we deployed our backend to Heroku and hosted our app on Expo to provide a living application.
Golang | React Native | Heroku| Firebase| Expo
Opptin: A Geolocation-Based Social Networking Application
Jan 2020 ~ May 2020
Opptin is aiming to create its own personal and encrypted infrastructure for people to network, find potential jobs, and even improve school efficiency. As a full-stack developer, I worked with project management and UX design team to deploy our geofencing widgets to fully meet our customers' needs. We implemented 3D mapping, searching spaces, inviting users, and broadcasting functionality to our web app. To ensure integrity across different devices, we collaborated closely with Android and iOS development teams to maintain the integrity of the backend API.
Opptin is aiming to create its own personal and encrypted infrastructure for people to network, find potential jobs, and even improve school efficiency. As a full-stack developer, I worked with project management and UX design team to deploy our geofencing widgets to fully meet our customers' needs. We implemented 3D mapping, searching spaces, inviting users, and broadcasting functionality to our web app. To ensure integrity across different devices, we collaborated closely with Android and iOS development teams to maintain the integrity of the backend API.
Mongoose | TypeScript | Ionic| Rest API | NodeJS
Probe Visualization Platform Feature Enhancement
Sep 2019 ~ Dec 2019This group project aims at creating a responsive, intuitive dashboard for visualizing probe design, with region, summary, and data views. Developed features include zooming, toggling between different variables, multi-scale zoom capacity, details-on-demand tooltip, linked plots, and inspection by brushing. This dynamic data exploration largely accelerate the research process for molecular biologists in exploring gene expression pathways.
JavaScript | D3 | JQuery | Bootstrap
Data Challenge - Crime Data Exploration
Nov 2019As participation to Carolina Data Challenge 2019, we analyzed the incidents reports filled with the Chapel Hill Police Department. We filtered data within past 5 years and clustered the incidents geographically using K-Nearest Neighbor model. With our visualization dashboard, we successfully spotted areas with certain incident types and identified seasonal patterns to give useful recommendation for police resource allocation.
Tableau | Data Visualization | Clustering | Time Series | K-NN
Classification-Based User Modeling Using Search Queries
Jan 2018 ~ May 2018This machine learning projects aims to predict the users' gender, age and education level based on his search query. Chinese word embedding, stacking ensemble model, and neural network are involved in this task. An accuracy of 75% is achieved for classification.
Python | NLP | Machine Learning | Classification | Ensemble Learning | XGboost | Neural Network
Wine Review Site
Jun 2020 ~ Jul 2020This is a personal project start from draft to create a responsive wine review site informing people of basic knowledge about wine. Toggle function, dynamic searching and Youtube API were included. Bootstrap grid systems were used to structure the content.
HTML | CSS | JavaScript | jQuery | Bootstrap
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