733 citations
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4 papers · 1 filter
On the Accuracy of Hyper-local Geotagging of Social Media Content
David Flatow, Mor Naaman, Ke Eddie Xie +2
Social media users share billions of items per year, only a small fraction of which is geotagged. We present a data- driven approach for identifying non-geotagged content items tha…
Robust Sample Average Approximation
Dimitris Bertsimas, Vishal Gupta, Nathan Kallus
Sample average approximation (SAA) is a widely popular approach to data-driven decision-making under uncertainty. Under mild assumptions, SAA is both tractable and enjoys strong as…
Improving Streaming Video Segmentation with Early and Mid-Level Visual Processing
Subarna Tripathi, Youngbae Hwang, Serge Belongie +1
Despite recent advances in video segmentation, many opportunities remain to improve it using a variety of low and mid-level visual cues. We propose improvements to the leading stre…
Data-Driven Robust Optimization
Dimitris Bertsimas, Vishal Gupta, Nathan Kallus
The last decade witnessed an explosion in the availability of data for operations research applications. Motivated by this growing availability, we propose a novel schema for utili…