Search Results for author: Bairu Hou

Found 11 papers, 10 papers with code

Advancing the Robustness of Large Language Models through Self-Denoised Smoothing

1 code implementation18 Apr 2024 Jiabao Ji, Bairu Hou, Zhen Zhang, Guanhua Zhang, Wenqi Fan, Qing Li, Yang Zhang, Gaowen Liu, Sijia Liu, Shiyu Chang

Although large language models (LLMs) have achieved significant success, their vulnerability to adversarial perturbations, including recent jailbreak attacks, has raised considerable concerns.

Defending Large Language Models against Jailbreak Attacks via Semantic Smoothing

1 code implementation25 Feb 2024 Jiabao Ji, Bairu Hou, Alexander Robey, George J. Pappas, Hamed Hassani, Yang Zhang, Eric Wong, Shiyu Chang

Aligned large language models (LLMs) are vulnerable to jailbreaking attacks, which bypass the safeguards of targeted LLMs and fool them into generating objectionable content.

Instruction Following

Decomposing Uncertainty for Large Language Models through Input Clarification Ensembling

1 code implementation15 Nov 2023 Bairu Hou, Yujian Liu, Kaizhi Qian, Jacob Andreas, Shiyu Chang, Yang Zhang

Uncertainty decomposition refers to the task of decomposing the total uncertainty of a model into data (aleatoric) uncertainty, resulting from the inherent complexity or ambiguity of the data, and model (epistemic) uncertainty, resulting from the lack of knowledge in the model.

Uncertainty Quantification

Certified Robustness for Large Language Models with Self-Denoising

1 code implementation14 Jul 2023 Zhen Zhang, Guanhua Zhang, Bairu Hou, Wenqi Fan, Qing Li, Sijia Liu, Yang Zhang, Shiyu Chang

This largely falls into the study of certified robust LLMs, i. e., all predictions of LLM are certified to be correct in a local region around the input.

Denoising

Improving Diffusion Models for Scene Text Editing with Dual Encoders

1 code implementation12 Apr 2023 Jiabao Ji, Guanhua Zhang, Zhaowen Wang, Bairu Hou, Zhifei Zhang, Brian Price, Shiyu Chang

Scene text editing is a challenging task that involves modifying or inserting specified texts in an image while maintaining its natural and realistic appearance.

Scene Text Editing Style Transfer +1

PromptBoosting: Black-Box Text Classification with Ten Forward Passes

2 code implementations19 Dec 2022 Bairu Hou, Joe O'Connor, Jacob Andreas, Shiyu Chang, Yang Zhang

Instead of directly optimizing in prompt space, PromptBoosting obtains a small pool of prompts via a gradient-free approach and then constructs a large pool of weak learners by pairing these prompts with different elements of the LM's output distribution.

Language Modelling text-classification +1

TextGrad: Advancing Robustness Evaluation in NLP by Gradient-Driven Optimization

1 code implementation19 Dec 2022 Bairu Hou, Jinghan Jia, Yihua Zhang, Guanhua Zhang, Yang Zhang, Sijia Liu, Shiyu Chang

Robustness evaluation against adversarial examples has become increasingly important to unveil the trustworthiness of the prevailing deep models in natural language processing (NLP).

Adversarial Defense Adversarial Robustness +1

Try to Substitute: An Unsupervised Chinese Word Sense Disambiguation Method Based on HowNet

1 code implementation COLING 2020 Bairu Hou, Fanchao Qi, Yuan Zang, Xurui Zhang, Zhiyuan Liu, Maosong Sun

In this paper, we propose a new unsupervised method for HowNet-based Chinese WSD, which exploits the masked language model task of pre-trained language models.

Language Modelling Word Sense Disambiguation

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