activity
20202026
most citedA Unified Evaluation of Textual Backdoor Learning: Frameworks and Benchmarks

24 citations · 116 across the 28 of their papers we have counts for

collaborators

28 papers

cs.CL2026

Unified Audio Intelligence Without Regressing on Text Intelligence

Zhifeng Kong, Sang-gil Lee, Jaehyeon Kim +17

Audio intelligence involves understanding, reasoning about, and generating both audio and speech. In this work, we introduce Nemotron-Labs-Audex-30B-A3B (Audex), a unified audio-te…

cs.CL2025

Perception-Aware Policy Optimization for Multimodal Reasoning

Zhenhailong Wang, Xuehang Guo, Sofia Stoica +8

Reinforcement Learning with Verifiable Rewards (RLVR) has proven to be a highly effective strategy for endowing Large Language Models (LLMs) with robust multi-step reasoning abilit…

cs.CV2025

Prioritizing Image-Related Tokens Enhances Vision-Language Pre-Training

Yangyi Chen, Hao Peng, Tong Zhang +1

In standard large vision-language models (LVLMs) pre-training, the model typically maximizes the joint probability of the caption conditioned on the image via next-token prediction…

cs.SE2025★ 1 cited

SyncMind: Measuring Agent Out-of-Sync Recovery in Collaborative Software Engineering

Xuehang Guo, Xingyao Wang, Yangyi Chen +4

Software engineering (SE) is increasingly collaborative, with developers working together on shared complex codebases. Effective collaboration in shared environments requires parti…

cs.CL2024

Scaling Laws for Predicting Downstream Performance in LLMs

Yangyi Chen, Binxuan Huang, Yifan Gao +3

Precise estimation of downstream performance in large language models (LLMs) prior to training is essential for guiding their development process. Scaling laws analysis utilizes th…

cs.CV2024★ 1 cited

SOLO: A Single Transformer for Scalable Vision-Language Modeling

Yangyi Chen, Xingyao Wang, Hao Peng +1

We present SOLO, a single transformer for Scalable visiOn-Language mOdeling. Current large vision-language models (LVLMs) such as LLaVA mostly employ heterogeneous architectures th…

cs.CL2024★ 2 cited

SaySelf: Teaching LLMs to Express Confidence with Self-Reflective Rationales

Tianyang Xu, Shujin Wu, Shizhe Diao +4

Large language models (LLMs) often generate inaccurate or fabricated information and generally fail to indicate their confidence, which limits their broader applications. Previous…

cs.CL2024★ 10 cited

Executable Code Actions Elicit Better LLM Agents

Xingyao Wang, Yangyi Chen, Lifan Yuan +4

Large Language Model (LLM) agents, capable of performing a broad range of actions, such as invoking tools and controlling robots, show great potential in tackling real-world challe…

cs.CV2023

ViStruct: Visual Structural Knowledge Extraction via Curriculum Guided Code-Vision Representation

Yangyi Chen, Xingyao Wang, Manling Li +2

State-of-the-art vision-language models (VLMs) still have limited performance in structural knowledge extraction, such as relations between objects. In this work, we present ViStru…

cs.CV2023★ 1 cited

DRESS: Instructing Large Vision-Language Models to Align and Interact with Humans via Natural Language Feedback

Yangyi Chen, Karan Sikka, Michael Cogswell +2

We present DRESS, a large vision language model (LVLM) that innovatively exploits Natural Language feedback (NLF) from Large Language Models to enhance its alignment and interactio…

cs.CL2023

Examining LLMs' Uncertainty Expression Towards Questions Outside Parametric Knowledge

Genglin Liu, Xingyao Wang, Lifan Yuan +2

Can large language models (LLMs) express their uncertainty in situations where they lack sufficient parametric knowledge to generate reasonable responses? This work aims to systema…

cs.CL2023★ 8 cited

R-Tuning: Instructing Large Language Models to Say `I Don't Know'

Hanning Zhang, Shizhe Diao, Yong Lin +6

Large language models (LLMs) have revolutionized numerous domains with their impressive performance but still face their challenges. A predominant issue is the propensity for these…

cs.CL2023★ 8 cited

CRAFT: Customizing LLMs by Creating and Retrieving from Specialized Toolsets

Lifan Yuan, Yangyi Chen, Xingyao Wang +3

Large language models (LLMs) are often augmented with tools to solve complex tasks. By generating code snippets and executing them through task-specific Application Programming Int…

cs.CL2023★ 16 cited

MINT: Evaluating LLMs in Multi-turn Interaction with Tools and Language Feedback

Xingyao Wang, Zihan Wang, Jiateng Liu +4

To solve complex tasks, large language models (LLMs) often require multiple rounds of interactions with the user, sometimes assisted by external tools. However, current evaluation…

cs.CL2023★ 1 cited

Measuring and Improving Chain-of-Thought Reasoning in Vision-Language Models

Yangyi Chen, Karan Sikka, Michael Cogswell +2

Vision-language models (VLMs) have recently demonstrated strong efficacy as visual assistants that can parse natural queries about the visual content and generate human-like output…

cs.CL2023★ 7 cited

Revisiting Out-of-distribution Robustness in NLP: Benchmark, Analysis, and LLMs Evaluations

Lifan Yuan, Yangyi Chen, Ganqu Cui +6

This paper reexamines the research on out-of-distribution (OOD) robustness in the field of NLP. We find that the distribution shift settings in previous studies commonly lack adequ…

cs.CL2023

From Adversarial Arms Race to Model-centric Evaluation: Motivating a Unified Automatic Robustness Evaluation Framework

Yangyi Chen, Hongcheng Gao, Ganqu Cui +10

Textual adversarial attacks can discover models' weaknesses by adding semantic-preserved but misleading perturbations to the inputs. The long-lasting adversarial attack-and-defense…

cs.CL2022★ 3 cited

A Close Look into the Calibration of Pre-trained Language Models

Yangyi Chen, Lifan Yuan, Ganqu Cui +2

Pre-trained language models (PLMs) may fail in giving reliable estimates of their predictive uncertainty. We take a close look into this problem, aiming to answer two questions: (1…

cs.CL2022★ 2 cited

Why Should Adversarial Perturbations be Imperceptible? Rethink the Research Paradigm in Adversarial NLP

Yangyi Chen, Hongcheng Gao, Ganqu Cui +4

Textual adversarial samples play important roles in multiple subfields of NLP research, including security, evaluation, explainability, and data augmentation. However, most work mi…

cs.LG2022★ 24 cited

A Unified Evaluation of Textual Backdoor Learning: Frameworks and Benchmarks

Ganqu Cui, Lifan Yuan, Bingxiang He +3

Textual backdoor attacks are a kind of practical threat to NLP systems. By injecting a backdoor in the training phase, the adversary could control model predictions via predefined…

cs.CL2022★ 1 cited

Exploring the Universal Vulnerability of Prompt-based Learning Paradigm

Lei Xu, Yangyi Chen, Ganqu Cui +2

Prompt-based learning paradigm bridges the gap between pre-training and fine-tuning, and works effectively under the few-shot setting. However, we find that this learning paradigm…

cs.CL2021★ 3 cited

Mind the Style of Text! Adversarial and Backdoor Attacks Based on Text Style Transfer

Fanchao Qi, Yangyi Chen, Xurui Zhang +3

Adversarial attacks and backdoor attacks are two common security threats that hang over deep learning. Both of them harness task-irrelevant features of data in their implementation…

cs.CL2021★ 11 cited

Bridge the Gap Between CV and NLP! A Gradient-based Textual Adversarial Attack Framework

Lifan Yuan, Yichi Zhang, Yangyi Chen +1

Despite recent success on various tasks, deep learning techniques still perform poorly on adversarial examples with small perturbations. While optimization-based methods for advers…

cs.CR2021★ 1 cited

Textual Backdoor Attacks Can Be More Harmful via Two Simple Tricks

Yangyi Chen, Fanchao Qi, Hongcheng Gao +2

Backdoor attacks are a kind of emergent security threat in deep learning. After being injected with a backdoor, a deep neural model will behave normally on standard inputs but give…