I'm a programmer, data scientist, physicist, and technology lover, and I am fascinated by learning how almost anything works.

I'm currently a Machine Learning Engineer at Google, where I work on the Location Platform at Google Maps.

Previously, I worked at LendUp, a startup whose goal is to safely extend credit to all who need it.

I obtained a PhD in High Energy Experimental Particle Physics from New York University, where I worked on the ATLAS experiment on the Large Hadron Collider at CERN.

I was also a fellow at the Insight Data Science Program.

For more information, please browse my work and projects page or read entries from my blog or check out my apps.

I can be reached at the following email address: ghl227@gmail.com

Symmetries are all around us and shape our lives in ways few understand. On an aesthetic level, symmetries are considered beautiful and visually pleasing. But the mathematical concept of a symmetry goes much deeper than the familiar definition. In a deep, fundamental way, symmetries govern how the world works. They are the language of the most fundamental physical processes that we can describe.