The Fashion MNIST Dataset contains 70,000 grayscale samples of different clothing articles. With an External GPU Unit, I wanted to create a neural network & a convolutional neural network in Python to see if I can classify the different clothing sets. Using Neural Layers with a Sigmoid Activation Function, I got a 0.323 Loss &
Simulating Algae & Zooplankton in a River
Matthew Widjaja2017-12-27T00:44:44+00:00With MATLAB, I calculated the concentrations of Algae, Zooplankton, Oxygen, & Carbon in a river as they interact and are consumed. This differential equation was calculated by Eulers Method and this was programmed in my MATLAB script. Explore the Code
Modeling a Pendulum
Matthew Widjaja2017-12-27T00:43:36+00:00I plotted a 10 meter long Foucault Pendulum (one that swings in both the x & y directions) with respect to the earth’s rotation in Quebec Canada by using C and its standard libraries. I took the second-order equations to obtain velocity and I used that to determine by how many x & y
Modeling Ecological Networks
Matthew Widjaja2017-12-27T00:43:57+00:00Invasive species are disrupting ecosystems everyday. The best way to curtail that is by understanding our ecosystem. That’s difficult, but with the help of a model, we can predict how new organisms effect our ecosystem and as a result, make improvements more effectively. In my undergrad research project with Stockton Professor Jason Shulman, we
Will Reddit buy Pizzas?
Matthew Widjaja2017-12-27T00:44:08+00:00In this Kaggle.com project, I wanted to predict the probability of Reddit’s Random Acts of Pizza group giving a free pizza in regards to its history of requests. This project was one of my first introductions in analyzing text for Machine Learning. If I were to do this again, I probably would try to
How reliable is NYC’s Subways?
Matthew Widjaja2017-12-27T00:44:12+00:00With NYC Subway Data from 2009-2011, I analyzed each subway line to derive conclusions regarding on-time performance & reliability. I parsed several CSV files and by using Numpy & Sklearn, generated data which I plotted using Bokeh, an interactive visualization tool for plots. While doing this project, I chose to stick to standard Python
Gun Shootings vs. Laws
Matthew Widjaja2017-12-27T00:44:17+00:00With all of the mass shootings in the news, we’re hearing a lot of talk whether gun laws actually help. In this side/beta project, I wanted to investigate if there are any correlations between types of gun laws and their effects on shooting on a state-by-state basis. The tl;dr conclusions from this project are: