Search Results for author: Ji Gao

Found 9 papers, 3 papers with code

Learning and Certification under Instance-targeted Poisoning

no code implementations18 May 2021 Ji Gao, Amin Karbasi, Mohammad Mahmoody

In this paper, we study PAC learnability and certification of predictions under instance-targeted poisoning attacks, where the adversary who knows the test instance may change a fraction of the training set with the goal of fooling the learner at the test instance.

PAC learning

STLnet: Signal Temporal Logic Enforced Multivariate Recurrent Neural Networks

no code implementations NeurIPS 2020 Meiyi Ma, Ji Gao, Lu Feng, John Stankovic

In this paper, we develop a new temporal logic-based learning framework, STLnet, which guides the RNN learning process with auxiliary knowledge of model properties, and produces a more robust model for improved future predictions.

Exploring the Naturalness of Buggy Code with Recurrent Neural Networks

no code implementations21 Mar 2018 Jack Lanchantin, Ji Gao

Statistical language models are powerful tools which have been used for many tasks within natural language processing.

General Classification Language Modelling

Black-box Generation of Adversarial Text Sequences to Evade Deep Learning Classifiers

2 code implementations13 Jan 2018 Ji Gao, Jack Lanchantin, Mary Lou Soffa, Yanjun Qi

Although various techniques have been proposed to generate adversarial samples for white-box attacks on text, little attention has been paid to black-box attacks, which are more realistic scenarios.

Adversarial Text General Classification +4

DeepCloak: Masking Deep Neural Network Models for Robustness Against Adversarial Samples

no code implementations22 Feb 2017 Ji Gao, Beilun Wang, Zeming Lin, Weilin Xu, Yanjun Qi

By identifying and removing unnecessary features in a DNN model, DeepCloak limits the capacity an attacker can use generating adversarial samples and therefore increase the robustness against such inputs.

General Classification

A Fast and Scalable Joint Estimator for Learning Multiple Related Sparse Gaussian Graphical Models

2 code implementations9 Feb 2017 Beilun Wang, Ji Gao, Yanjun Qi

Estimating multiple sparse Gaussian Graphical Models (sGGMs) jointly for many related tasks (large $K$) under a high-dimensional (large $p$) situation is an important task.

Computational Efficiency

A Theoretical Framework for Robustness of (Deep) Classifiers against Adversarial Examples

no code implementations1 Dec 2016 Beilun Wang, Ji Gao, Yanjun Qi

Most machine learning classifiers, including deep neural networks, are vulnerable to adversarial examples.

Representation Learning

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