Search Results for author: Charles Loeffler

Found 2 papers, 2 papers with code

Scalable high-resolution forecasting of sparse spatiotemporal events with kernel methods: a winning solution to the NIJ "Real-Time Crime Forecasting Challenge"

1 code implementation9 Jan 2018 Seth Flaxman, Michael Chirico, Pau Pereira, Charles Loeffler

For inference, we discretize the spatiotemporal point pattern and learn a log-intensity function using the Poisson likelihood and highly efficient gradient-based optimization methods.

Density Estimation Gaussian Processes

Is Gun Violence Contagious?

1 code implementation21 Nov 2016 Charles Loeffler, Seth Flaxman

Existing theories of gun violence predict stable spatial concentrations and contagious diffusion of gun violence into surrounding areas.

Applications

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