Multi-head Span-based Detector for AI-generated Fragments in Scientific Papers

German Gritsai, Ildar Khabutdinov, Andrey Grabovoy


Abstract
This paper describes a system designed to distinguish between AI-generated and human-written scientific excerpts in the DAGPap24 competition hosted within the Fourth Workshop on Scientific Document Processing. In this competition the task is to find artificially generated token-level text fragments in documents of a scientific domain. Our work focuses on the use of a multi-task learning architecture with two heads. The application of this approach is justified by the specificity of the task, where class spans are continuous over several hundred characters. We considered different encoder variations to obtain a state vector for each token in the sequence, as well as a variation in splitting fragments into tokens to further feed into the input of a transform-based encoder. This approach allows us to achieve a 9% quality improvement relative to the baseline solution score on the development set (from 0.86 to 0.95) using the average macro F1-score, as well as a score of 0.96 on a closed test part of the dataset from the competition.
Anthology ID:
2024.sdp-1.21
Volume:
Proceedings of the Fourth Workshop on Scholarly Document Processing (SDP 2024)
Month:
August
Year:
2024
Address:
Bangkok, Thailand
Editors:
Tirthankar Ghosal, Amanpreet Singh, Anita Waard, Philipp Mayr, Aakanksha Naik, Orion Weller, Yoonjoo Lee, Shannon Shen, Yanxia Qin
Venues:
sdp | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
220–225
Language:
URL:
https://aclanthology.org/2024.sdp-1.21
DOI:
Bibkey:
Cite (ACL):
German Gritsai, Ildar Khabutdinov, and Andrey Grabovoy. 2024. Multi-head Span-based Detector for AI-generated Fragments in Scientific Papers. In Proceedings of the Fourth Workshop on Scholarly Document Processing (SDP 2024), pages 220–225, Bangkok, Thailand. Association for Computational Linguistics.
Cite (Informal):
Multi-head Span-based Detector for AI-generated Fragments in Scientific Papers (Gritsai et al., sdp-WS 2024)
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PDF:
https://aclanthology.org/2024.sdp-1.21.pdf