Search Results for author: Washington Garcia

Found 7 papers, 2 papers with code

Disentangling Categorization in Multi-agent Emergent Communication

1 code implementation NAACL 2022 Washington Garcia, Hamilton Clouse, Kevin Butler

The emergence of language between artificial agents is a recent focus of computational linguistics, as it offers a synthetic substrate for reasoning about human language evolution.

Representation Learning

Less is More: Dimension Reduction Finds On-Manifold Adversarial Examples in Hard-Label Attacks

no code implementations29 Sep 2021 Washington Garcia, Pin-Yu Chen, Somesh Jha, Hamilton Scott Clouse, Kevin R. B. Butler

It was recently shown in the gradient-level setting that regular adversarial examples leave the data manifold, while their on-manifold counterparts are in fact generalization errors.

Dimensionality Reduction Image Classification

Hard-label Manifolds: Unexpected Advantages of Query Efficiency for Finding On-manifold Adversarial Examples

no code implementations4 Mar 2021 Washington Garcia, Pin-Yu Chen, Somesh Jha, Scott Clouse, Kevin R. B. Butler

It was recently shown in the gradient-level setting that regular adversarial examples leave the data manifold, while their on-manifold counterparts are in fact generalization errors.

Dimensionality Reduction Image Classification

Hear "No Evil", See "Kenansville": Efficient and Transferable Black-Box Attacks on Speech Recognition and Voice Identification Systems

no code implementations11 Oct 2019 Hadi Abdullah, Muhammad Sajidur Rahman, Washington Garcia, Logan Blue, Kevin Warren, Anurag Swarnim Yadav, Tom Shrimpton, Patrick Traynor

Automatic speech recognition and voice identification systems are being deployed in a wide array of applications, from providing control mechanisms to devices lacking traditional interfaces, to the automatic transcription of conversations and authentication of users.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +1

Practical Hidden Voice Attacks against Speech and Speaker Recognition Systems

no code implementations18 Mar 2019 Hadi Abdullah, Washington Garcia, Christian Peeters, Patrick Traynor, Kevin R. B. Butler, Joseph Wilson

In this paper, we break these dependencies and make hidden command attacks more practical through model-agnostic (blackbox) attacks, which exploit knowledge of the signal processing algorithms commonly used by VPSes to generate the data fed into machine learning systems.

Audio Signal Processing BIG-bench Machine Learning +1

Explainable Black-Box Attacks Against Model-based Authentication

no code implementations28 Sep 2018 Washington Garcia, Joseph I. Choi, Suman K. Adari, Somesh Jha, Kevin R. B. Butler

Establishing unique identities for both humans and end systems has been an active research problem in the security community, giving rise to innovative machine learning-based authentication techniques.

BIG-bench Machine Learning Explainable Artificial Intelligence (XAI)

MTLE: A Multitask Learning Encoder of Visual Feature Representations for Video and Movie Description

1 code implementation19 Sep 2018 Oliver Nina, Washington Garcia, Scott Clouse, Alper Yilmaz

Many of the current state of the art methods for video captioning and movie description rely on simple encoding mechanisms through recurrent neural networks to encode temporal visual information extracted from video data.

Video Captioning

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