I’m a PhD student working with Stefano Ermon in the Stanford AI Lab, where we’re using machine learning to tackle challenging problems in sustainability and healthcare. I’ve also spent some time at the Future of Humanity Institute at the University of Oxford.
I previously studied econ and math at Duke and electrical engineering at Georgia Tech. I love basketball — my senior thesis was about the NBA — but unfortunately I’m too deep in this school thing now to make it to the league.
Combining satellite imagery and machine learning to predict poverty
N. Jean, M. Burke, M. Xie, W. M. Davis, D. B. Lobell, S. Ermon
Science, 353(6301), 790-794, 2016
Video / PDF / Website / Commentary / Code
Produced district-level poverty maps in Nigeria, Tanzania, Uganda, Malawi, and Rwanda using high-resolution satellite imagery, household surveys, and deep learning. Bill Gates tweeted our research!
Transfer learning from deep features for remote sensing and poverty mapping
M. Xie, N. Jean, M. Burke, D. B. Lobell, S. Ermon
AAAI Conference on Artificial Intelligence, 2016
PDF / NYTimes
Using nighttime lights as a proxy for poverty, extracted satellite image features with CNNs to estimate poverty rates in Uganda.
Tile2Vec: Unsupervised representation learning for spatially distributed data
N. Jean, S. Wang, A. Samar, G. Azzari, D. Lobell, S. Ermon
arXiv preprint arXiv:1805.02855, 2018
Extends distributional semantics from language to geospatial data for unsupervised representation learning — unsupervised features beat supervised CNNs trained on up to 50k labels on downstream task.
Semi-supervised deep kernel learning: Regression with unlabeled data by minimizing predictive variance
N. Jean, S. M. Xie, S. Ermon
arXiv preprint arXiv:1805.10407, 2018
Leverage unlabeled data for regression tasks by using a Gaussian process with a deep kernel and minimizing predictive variance in the posterior regularization framework.