Category: tech
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Thoughts on the Vehicle Routing Problem (2 of 2)
In the last post, I introduced a mathematical formulation of the Vehicle Routing Problem inspired by a recent paper on taxi routing. The paper caught my eye initially because the authors mentioned being able “to dispatch in real time thousands of taxis serving more than 25,000 customers per hour.” Let’s go a bit deeper now and look at… Read more
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Thoughts on the Vehicle Routing Problem (1 of 2?)
I start off this post by providing a gentle introduction to a specific mathematical problem that has numerous practical applications. I then dive into some technical details and my thoughts on an interesting, recently published paper. You’ve been warned. I’ll try to make it interesting. My dad showed me Charles ReVelle’s article about the Roman Legions… Read more
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I (Sometimes) Move Rocks
You never know what kind of feedback you will get when you go through an internal review. The process is especially nerve-racking when it happens just a few weeks before an important presentation to the client, on a complex project, and when one reviewer is a high-ranking researcher who has not been involved in the… Read more
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A Field Guide to Data Science Interviews
It’s not the time to be writing about this sort of thing. But here we are. Hopefully this post helps someone who would otherwise struggle to break into Data Science. I finished graduate school in 2006 and started as a Senior Data Scientist at Uber in 2018. I applied to tens of Data Science and… Read more
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Naming Names
One of my guilty pleasures is reading blog posts and books by entitled tech workers complaining about their last job or company. The authors complain about their managers. They ridicule company culture. The best are self-aware and point out important issues in tech. My favorite is probably Disrupted by Dan Lyons. I thought I’d do the opposite and write about the… Read more
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Mandarins Demanding a Surfeit?
Laura Bliss managed to make an entertaining article about an emerging set of data standards. She had me at Mobility Data Specification (MDS). Others might be more interested in the bureaucrat battling Uber, the hint of corruption, or the grandiose visions of the future of traffic. I’m excited about MDS. Of course I am; I am a transportation data scientist.… Read more