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Pinjia He

18 accepted papers

2026

MicLog: Towards Accurate and Efficient LLM-based Log Parsing via Progressive Meta In-Context Learning

AAAI 2026technical

Log parsing converts semi-structured logs into structured templates, forming a critical foundation for downstream analysis. Traditional syntax and semantic-based parsers often struggle with semantic variations in evolving logs and data scarcity stemming from their limited domain coverage. Recent lar

Cited by 0SourcePDFScholar
2026

Position: Code Benchmarks Should Prioritize Rigor, Reliability, and Reproducibility

ICML 2026poster

Code-related benchmarks play a critical role in evaluating large language models (LLMs), yet their quality fundamentally shapes how the com- munity interprets model capabilities. In the past few years, awareness of benchmark quality has grown. Yet, after a decade-scale (2014 - 2025) survey over 572 …

Cited by 0SourceScholar
2026

SWE-ABS: Adversarial Benchmark Strengthening Exposes Inflated Success Rates on Test-based Benchmark

ICML 2026poster

The SWE-Bench Verified leaderboard is approaching saturation, with the top system achieving 78.80\%. However, we reveal that this performance is inflated: our re-evaluation demonstrates that one in five "solved" patches from the top-30 agents are semantically incorrect, passing only because weak tes…

Cited by 0SourceScholar
2026

Semantic Router: On the Feasibility of Hijacking MLLMs via a Single Adversarial Perturbation

ICML 2026poster

Multimodal Large Language Models (MLLMs) are increasingly deployed in stateless systems, such as autonomous driving and robotics. This paper investigates a novel threat: Semantic-Aware Hijacking. We explore the feasibility of hijacking multiple stateless decisions simultaneously using a single unive…

Cited by 0SourceScholar
2026

The Pensieve Paradigm: Stateful Language Models with Learned Memory Management

ICLR 2026poster

In the world of Harry Potter, when Dumbledore's mind is overburdened, he extracts memories into a Pensieve to be revisited later. In the world of AI, while we possess the Pensieve—mature databases and retrieval systems, our models inexplicably lack the "wand" to operate it. They remain like a Dumble…

Cited by 0SourceScholar
2025

Can’t See the Forest for the Trees: Benchmarking Multimodal Safety Awareness for Multimodal LLMs

ACL 2025long

Multimodal Large Language Models (MLLMs) have expanded the capabilities of traditional language models by enabling interaction through both text and images. However, ensuring the safety of these models remains a significant challenge, particularly in accurately identifying whether multimodal content…

2025

Insight Over Sight: Exploring the Vision-Knowledge Conflicts in Multimodal LLMs

ACL 2025long

This paper explores the problem of commonsense level vision-knowledge conflict in Multimodal Large Language Models (MLLMs), where visual information contradicts model’s internal commonsense knowledge. To study this issue, we introduce an automated framework, augmented with human-in-the-loop quality…

2025

OpenRCA: Can Large Language Models Locate the Root Cause of Software Failures?

ICLR 2025poster

Large language models (LLMs) are driving substantial advancements in software engineering, with successful applications like Copilot and Cursor transforming real-world development practices. However, current research predominantly focuses on the early stages of development, such as code generation,…

Cited by 2SourcePDFScholar
2025

Refuse Whenever You Feel Unsafe: Improving Safety in LLMs via Decoupled Refusal Training

ACL 2025long

This study addresses a critical gap in safety tuning practices for Large Language Models (LLMs) by identifying and tackling a refusal position bias within safety tuning data, which compromises the models’ ability to appropriately refuse generating unsafe content. We introduce a novel approach, Decou…

2025

ToolSafety: A Comprehensive Dataset for Enhancing Safety in LLM-Based Agent Tool Invocations

EMNLP 2025

LLMs are evolving into assistants that leverage tools, significantly expanding their capabilities but also introducing critical safety risks. Current models exhibit notable vulnerabilities, particularly in maintaining safety during multi-step tool interactions and in scenarios involving indirect har

Cited by 0SourcePDFScholar
2025

Towards Evaluating Proactive Risk Awareness of Multimodal Language Models

NeurIPS 2025poster

Human safety awareness gaps often prevent the timely recognition of everyday risks. In solving this problem, a proactive safety artificial intelligence (AI) system would work better than a reactive one. Instead of just reacting to users' questions, it would actively watch people’s behavior and their…

Cited by 0SourceScholar
2025

Trust, But Verify: A Self-Verification Approach to Reinforcement Learning with Verifiable Rewards

NeurIPS 2025poster

Large Language Models (LLMs) show great promise in complex reasoning, with Reinforcement Learning with Verifiable Rewards (RLVR) being a key enhancement strategy. However, a prevalent issue is ``superficial self-reflection'', where models fail to robustly verify their own outputs. We introduce RISE…

Cited by 0SourcecodeScholar
2024

Difficult Task Yes but Simple Task No: Unveiling the Laziness in Multimodal LLMs

EMNLP 2024finding

Multimodal Large Language Models (MLLMs) demonstrate a strong understanding of the real world and can even handle complex tasks. However, they still fail on some straightforward visual question-answering (VQA) problems. This paper dives deeper into this issue, revealing that models tend to err when…

2024

Does ChatGPT Know That It Does Not Know? Evaluating the Black-Box Calibration of ChatGPT

COLING 2024main

Recently, ChatGPT has demonstrated remarkable performance in various downstream tasks such as open-domain question answering, machine translation, and code generation. As a general-purpose task solver, an intriguing inquiry arises: Does ChatGPT itself know that it does not know, without any access t…

Cited by 6SourcePDFScholar
2024

GPT-4 Is Too Smart To Be Safe: Stealthy Chat with LLMs via Cipher

ICLR 2024poster

Safety lies at the core of the development of Large Language Models (LLMs). There is ample work on aligning LLMs with human ethics and preferences, including data filtering in pretraining, supervised fine-tuning, reinforcement learning from human feedback, red teaming, etc. In this study, we discove…

2024

LogicAsker: Evaluating and Improving the Logical Reasoning Ability of Large Language Models

EMNLP 2024main

We introduce LogicAsker, a novel approach for evaluating and enhancing the logical reasoning capabilities of large language models (LLMs) such as ChatGPT and GPT-4. Despite LLMs’ prowess in tasks like writing assistance, code generation, and machine translation, assessing their ability to reason has…