Ronny Huang
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MetaPoison: Practical General-purpose Clean-label Data Poisoning
Data poisoning–the process by which an attacker takes control of a model by making imperceptible changes to a subset of the …
W. Ronny Huang*
,
Jonas Geiping*
,
Liam Fowl
,
Gavin Taylor
,
Tom Goldstein
Preprint
Preprint
PDF
Code
DeepErase: Weakly Supervised Artifact Removal from Document Text Images
Paper-intensive industries like insurance, law, and government have long leveraged optical character recognition (OCR) to automatically …
W. Ronny Huang*
,
Yike Qi*
,
Qianqian Li
,
Jonathan Degange
Winter Conference on Applications of Computer Vision (WACV 2020)
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Video
Source
Strong Baseline Defenses Against Clean-Label Poisoning Attacks
Targeted clean-label poisoning is a type of adversarial attack on machine learning systems where the adversary injects a few …
Neal Gupta*
,
W. Ronny Huang*
,
Liam Fowl
,
Chen Zhu
,
Soheil Feizi
,
Tom Goldstein
,
John P. Dickerson
Preprint
Preprint
Cite
Project
Understanding Generalization through Visualizations
The power of neural networks lies in their ability to generalize to unseen data, yet the underlying reasons for this phenomenon remains …
W. Ronny Huang
,
Zeyad Emam
,
Micah Goldblum
,
Liam Fowl
,
Justin Terry
,
Furong Huang
,
Tom Goldstein
Preprint
Preprint
PDF
Cite
Code
Project
Transferable Clean-label Poisoning Attacks on Deep Neural Nets
Clean-label poisoning attacks inject innocuous looking (and correctly labeled) poison images into training data, causing a model to …
Chen Zhu*
,
W. Ronny Huang*
,
Ali Shafahi
,
Hengduo Li
,
Gavin Taylor
,
Christoph Studer
,
Tom Goldstein
International Conference on Machine Learning (ICML 2019)
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Project
Poster
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Are Adversarial Examples Inevitable?
A wide range of defenses have been proposed to harden neural networks against adversarial attacks. However, a pattern has emerged in …
Ali Shafahi
,
W. Ronny Huang
,
Christoph Studer
,
Soheil Feizi
,
Tom Goldstein
International Conference on Learning Representations (ICLR 2019)
Preprint
PDF
Cite
Source
Poison Frogs! Targeted Clean-label Poisoning Attacks on Neural Networks
Data poisoning is an attack on machine learning models wherein the attacker adds examples to the training set to manipulate the …
Ali Shafahi*
,
W. Ronny Huang*
,
Mahyar Najibi
,
Octavian Suciu
,
Christoph Studer
,
Tudor Dumitras
,
Tom Goldstein
Neural Information Processing Systems (NeurIPS 2018)
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Poster
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Source
Accurate, Data-Efficient Learning from Noisy, Choice-Based Labels for Inherent Risk Scoring
Inherent risk scoring is an important function in anti-money laundering, used for determining the riskiness of an individual during …
W. Ronny Huang*
,
Miguel A. Perez*
Neural Information Processing Systems (NeurIPS 2018) Workshop
Preprint
PDF
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Poster
Slides
Source
Femtosecond ionization source for ultrahigh resolution time-of-flight mass spectrometry
High resolution time-of-flight mass spectrometers (TOFMSs) have broad potential application in space exploration. We propose a novel …
W. Ronny Huang
,
Xiang Li
,
Anthony W. Yu
,
William A. Brinckerhoff
,
Molly Fahey
IEEE Aerospace Conference 2018
PDF
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Source
DOI
All-optical electron acceleration with ultrafast THz pulses
This thesis discusses a series of advances toward - and resulting in - the demonstration of the first ultrafast THz-driven electron …
W. Ronny Huang
PhD Thesis
PDF
Terahertz-driven, all-optical electron gun
Ultrashort electron beams with a narrow energy spread, high charge, and low jitter are essential for resolving phase transitions in …
W. Ronny Huang
,
Arya Fallahi
,
Xiaojun Wu
,
Huseyin Cankaya
,
Anne-Laure Calendron
,
Koustuban Ravi
,
Dongfang Zhang
,
Emilio A. Nanni
,
Kyung-Han Hong
,
Franz X. Kärtner
Optica
PDF
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Project
DOI
Toward a terahertz-driven electron gun
Femtosecond electron bunches with keV energies and eV energy spread are needed by condensed matter physicists to resolve state …
W Ronny Huang
,
Emilio A Nanni
,
Koustuban Ravi
,
Kyung-Han Hong
,
Arya Fallahi
,
Liang Jie Wong
,
Phillip D Keathley
,
Luis E Zapata
,
Franz X Kärtner
Nature Scientific Reports
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Project
Source
DOI
Terahertz-driven linear electron acceleration
The cost, size and availability of electron accelerators are dominated by the achievable accelerating gradient. Conventional …
Emilio A Nanni
,
W Ronny Huang
,
Kyung-Han Hong
,
Koustuban Ravi
,
Arya Fallahi
,
Gustavo Moriena
,
R J Dwayne Miller
,
Franz X Kärtner
Nature Communications
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Cryogenic Yb:YAG composite-thin-disk for high energy and average power amplifiers
A cryogenic composite-thin-disk amplifier with amplified spontaneous emission (ASE) rejection is implemented that overcomes traditional …
Luis E. Zapata
,
Hua Lin
,
Anne-Laure Calendron
,
Huseyin Cankaya
,
Michael Hemmer
,
Fabian Reichert
,
W. Ronny Huang
,
Eduardo Granados
,
Kyung-Han Hong
,
Franz X. Kärtner
Optics Letters
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DOI
Theory of terahertz generation by optical rectification using tilted-pulse-fronts
A model for terahertz (THz) generation by optical rectification using tilted-pulse-fronts is developed. It simultaneously accounts for …
Koustuban Ravi
,
Wenqian Ronny Huang
,
Sergio Carbajo
,
Emilio A. Nanni
,
Damian N. Schimpf
,
Erich P. Ippen
,
Franz. X. Kärtner
Optics Express
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DOI
Highly efficient terahertz pulse generation by optical rectification in stoichiometric and cryo-cooled congruent lithium niobate
We report, and review in detail, experiments resulting in a record 3.7% optical-to-terahertz (THz) conversion efficiency by optical …
W. Ronny Huang
,
Shu-Wei Huang
,
Eduardo Granados
,
Koustuban Ravi
,
Kyung-Han Hong
,
Luis E. Zapata
,
Franz X. Kärtner
Journal of Modern Optics
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Project
DOI
Limitations to THz generation by optical rectification using tilted pulse fronts
Terahertz (THz) generation by optical rectification (OR) using tilted-pulse-fronts is studied. A one-dimensional (1-D) model which …
Koustuban Ravi
,
W. Ronny Huang
,
Sergio Carbajo
,
Xiaojun Wu
,
Franz Kärtner
Optics Express
PDF
Cite
DOI
High field, high efficiency terahertz pulse generation by optical rectification
The great difficulty of producing high intensity radiation in the terahertz (THz) spectral region by conventional electronics has …
W. Ronny Huang
Masters Thesis
PDF
High speed, high power one-dimensional beam steering from a 6-element optical phased array
Beam steering at high speed and high power is demonstrated from a 6-element optical phased array using coherent beam combining (CBC) …
W. Ronny Huang
,
Juan Montoya
,
Jan E. Kansky
,
Shawn M. Redmond
,
George W. Turner
,
Antonio Sanchez-Rubio
Optics Express
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Project
Source
DOI
Coherent beam combination of 21 semiconductor gain elements in a common cavity
W. Ronny Huang
,
Juan Montoya
,
Steven Augst
,
Kevin Creedon
,
Jan Kansky
,
Tso Yee Fan
,
Antonio Sanchez-Rubio
Solid State Diode Laser Technology Review
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