439 citations · 839 across the 5 of their papers we have counts for
5 papers
Computing the log-determinant of symmetric, diagonally dominant matrices in near-linear time
Timothy Hunter, Ahmed El Alaoui, Alexandre Bayen
We present new algorithms for computing the log-determinant of symmetric, diagonally dominant matrices. Existing algorithms run with cubic complexity with respect to the size of th…
Arriving on time: estimating travel time distributions on large-scale road networks
Timothy Hunter, Aude Hofleitner, Jack Reilly +5
Most optimal routing problems focus on minimizing travel time or distance traveled. Oftentimes, a more useful objective is to maximize the probability of on-time arrival, which req…
Understanding Road Usage Patterns in Urban Areas
Pu Wang, Timothy Hunter, Alexandre M. Bayen +2
In this paper, we combine the most complete record of daily mobility, based on large-scale mobile phone data, with detailed Geographic Information System (GIS) data, uncovering pre…
Large Scale Estimation in Cyberphysical Systems using Streaming Data: a Case Study with Smartphone Traces
Timothy Hunter, Tathagata Das, Matei Zaharia +2
Controlling and analyzing cyberphysical and robotics systems is increasingly becoming a Big Data challenge. Pushing this data to, and processing in the cloud is more efficient than…
The path inference filter: model-based low-latency map matching of probe vehicle data
Timothy Hunter, Pieter Abbeel, Alexandre Bayen
We consider the problem of reconstructing vehicle trajectories from sparse sequences of GPS points, for which the sampling interval is between 10 seconds and 2 minutes. We introduc…