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Peng Qian

8 accepted papers

2026

Using cognitive models to reveal value trade-offs in language models

ICLR 2026poster

Value trade-offs are an integral part of human decision-making and language use, however, current tools for interpreting such dynamic and multi-faceted notions of values in LLMs are limited. In cognitive science, so-called “cognitive models” provide formal accounts of such trade-offs in humans, by m…

Cited by 0SourcecodeScholar
2023

Comparing the Evaluation and Production of Loophole Behavior in Humans and Large Language Models

EMNLP 2023long findings

In law, lore, and everyday life, loopholes are commonplace. When people exploit a loophole, they understand the intended meaning or goal of another person, but choose to go with a different interpretation. Past and current AI research has shown that artificial intelligence engages in what seems supe…

Cited by 0SourceScholar
2022

When Does Syntax Mediate Neural Language Model Performance? Evidence from Dropout Probes

NAACL 2022long

Recent causal probing literature reveals when language models and syntactic probes use similar representations. Such techniques may yield “false negative” causality results: models may use representations of syntax, but probes may have learned to use redundant encodings of the same syntactic informa…

2021

Controlled Evaluation of Grammatical Knowledge in Mandarin Chinese Language Models

EMNLP 2021main

Prior work has shown that structural supervision helps English language models learn generalizations about syntactic phenomena such as subject-verb agreement. However, it remains unclear if such an inductive bias would also improve language models’ ability to learn grammatical dependencies in typolo…

2021

Smart Contract Vulnerability Detection: From Pure Neural Network to Interpretable Graph Feature and Expert Pattern Fusion

IJCAI 2021poster

Smart contracts hold digital coins worth billions of dollars, their security issues have drawn extensive attention in the past years. Towards smart contract vulnerability detection, conventional methods heavily rely on fixed expert rules, leading to low accuracy and poor scalability. Recent deep lea…

2021

Structural Guidance for Transformer Language Models

ACL 2021long

Transformer-based language models pre-trained on large amounts of text data have proven remarkably successful in learning generic transferable linguistic representations. Here we study whether structural guidance leads to more human-like systematic linguistic generalization in Transformer language m…

2020

Smart Contract Vulnerability Detection using Graph Neural Network

IJCAI 2020poster

The security problems of smart contracts have drawn extensive attention due to the enormous financial losses caused by vulnerabilities. Existing methods on smart contract vulnerability detection heavily rely on fixed expert rules, leading to low detection accuracy. In this paper, we explore using gr…