Life updates and technical documentations
Map matching solves a fundamental problem with GPS data; Raw GPS data from vehicles or phones is inherently noisy. It zigzags through buildings, jumps across intersections, and disappears in tunnels. For any serious traffic analysis, emission modeling, or routing application, this raw data is unreliable. The solution is map-matching: the process of snapping a sequence … Read more
Analyzing large-scale floating car data (FCD) provides valuable insights into urban mobility, road usage, and traffic flow. One of the critical steps in this analysis is accurately estimating vehicle speeds from GPS trajectories—especially when turn-specific information is difficult to retrieve. In this post, I’ll walk through the process I followed to calculate and impute traffic … Read more
I found something interesting about myself. After trying many things in the past 28 years of my life, I found out that nothing can fulfill me more than “accomplishment”. The pure joy of doing something meaningful and prosperous is unimaginable. The moment that I’m able to finish something is more interesting than anything else I’ve … Read more