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Joshua Wang

4 accepted papers

2019

Efficient Rematerialization for Deep Networks

NeurIPS 2019poster

When training complex neural networks, memory usage can be an important bottleneck. The question of when to rematerialize, i.e., to recompute intermediate values rather than retaining them in memory, becomes critical to achieving the best time and space efficiency. In this work we consider the rem…

2018

Optimal Algorithms for Continuous Non-monotone Submodular and DR-Submodular Maximization

NeurIPS 2018oral

In this paper we study the fundamental problems of maximizing a continuous non monotone submodular function over a hypercube, with and without coordinate-wise concavity. This family of optimization problems has several applications in machine learning, economics, and communication systems. Our main…

Cited by 62SourcePDFScholar
2017

Approximation Bounds for Hierarchical Clustering: Average Linkage, Bisecting K-means, and Local Search

NeurIPS 2017oral

Hierarchical clustering is a data analysis method that has been used for decades. Despite its widespread use, the method has an underdeveloped analytical foundation. Having a well understood foundation would both support the currently used methods and help guide future improvements. The goal of this…

Cited by 157SourcePDFScholar