Ahmed Khaled

Sentiment Analysis over Social Networks: An Overview

2015

The rapid increase in data on social media creates a need for mining such data to get valuable insights. The data type can be unstructured with large volumes. Sentiment analysis addresses such need by detecting …

Better Theory for SGD in the Nonconvex World

2020 · arXiv (Cornell University)

Large-scale nonconvex optimization problems are ubiquitous in modern machine learning, and among practitioners interested in solving them, Stochastic Gradient Descent (SGD) reigns supreme. We revisit the analysis of SGD in the nonconvex setting and propose …