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Chenhao Niu

2 accepted papers

2024

Detecting LLM-Assisted Cheating on Open-Ended Writing Tasks on Language Proficiency Tests

EMNLP 2024industry

The high capability of recent Large Language Models (LLMs) has led to concerns about possible misuse as cheating assistants in open-ended writing tasks in assessments. Although various detecting methods have been proposed, most of them have not been evaluated on or optimized for real-world samples f…

Cited by 2SourcePDFScholar
2020

Permutation Invariant Graph Generation via Score-Based Generative Modeling

AISTATS 2020poster

Learning generative models for graph-structured data is challenging because graphs are discrete, combinatorial, and the underlying data distribution is invariant to the ordering of nodes. However, most of the existing generative models for graphs are not invariant to the chosen ordering, which might…