Search Results for author: Nathan Hodas

Found 8 papers, 0 papers with code

Reward-Free Attacks in Multi-Agent Reinforcement Learning

no code implementations2 Dec 2021 Ted Fujimoto, Timothy Doster, Adam Attarian, Jill Brandenberger, Nathan Hodas

We investigate how effective an attacker can be when it only learns from its victim's actions, without access to the victim's reward.

Multi-agent Reinforcement Learning reinforcement-learning +1

Prototypical Region Proposal Networks for Few-Shot Localization and Classification

no code implementations8 Apr 2021 Elliott Skomski, Aaron Tuor, Andrew Avila, Lauren Phillips, Zachary New, Henry Kvinge, Courtney D. Corley, Nathan Hodas

Recently proposed few-shot image classification methods have generally focused on use cases where the objects to be classified are the central subject of images.

Classification Few-Shot Image Classification +2

Explanatory Masks for Neural Network Interpretability

no code implementations15 Nov 2019 Lawrence Phillips, Garrett Goh, Nathan Hodas

Neural network interpretability is a vital component for applications across a wide variety of domains.

Image Classification Property Prediction +1

Learning Deep Neural Network Representations for Koopman Operators of Nonlinear Dynamical Systems

no code implementations22 Aug 2017 Enoch Yeung, Soumya Kundu, Nathan Hodas

The Koopman operator has recently garnered much attention for its value in dynamical systems analysis and data-driven model discovery.

Model Discovery

Intrinsic and Extrinsic Evaluation of Spatiotemporal Text Representations in Twitter Streams

no code implementations WS 2017 Lawrence Phillips, Kyle Shaffer, Dustin Arendt, Nathan Hodas, Svitlana Volkova

Language in social media is a dynamic system, constantly evolving and adapting, with words and concepts rapidly emerging, disappearing, and changing their meaning.

Representation Learning Type prediction

Separating Facts from Fiction: Linguistic Models to Classify Suspicious and Trusted News Posts on Twitter

no code implementations ACL 2017 Svitlana Volkova, Kyle Shaffer, Jin Yea Jang, Nathan Hodas

In this work we build predictive models to classify 130 thousand news posts as suspicious or verified, and predict four sub-types of suspicious news {--} satire, hoaxes, clickbait and propaganda.

Deception Detection

Assessing the Linguistic Productivity of Unsupervised Deep Neural Networks

no code implementations6 Jun 2017 Lawrence Phillips, Nathan Hodas

Increasingly, cognitive scientists have demonstrated interest in applying tools from deep learning.

Language Acquisition

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