Authorship Attribution and Profiling

Latest papers

• Does AI-Generated Scientific Text Follow Human Argumentation Patterns? A CARS-Based Comparison of Research Article Introductions

  Abdelrahman Sadallah, Narjes Sheikh Asadi, Lonneke van der Plas · 2 October 2026

  Large language models are moving from helping write up research to helping do it, which makes it important to know how the scientific text they produce differs from human writing. Work on this question has stayed mostly at the surface, using lexical and stylistic cues that light paraphrasing erases.…

• DeBERTa-ConPara: Attack-Aware and Deployment-Realistic Detection of AI-Generated Text

  Mohamed Mady, Yupei Li, Johannes Reschke, Bj\"orn W. Schuller · 2 October 2026

  Robust detection of AI-generated text under deployment conditions is challenging: distribution shifts across domains and generators, adversarial perturbations of the input surface, and the absence of target-domain labels for threshold calibration all degrade detectors that perform well in-domain. We…

• Reason in Style: Discovering and Controlling Style in Language Models

  Ioana Marinescu, Eric Karl Oermann, Kyunghyun Cho · 2 October 2026

  Language models learn content and style jointly, making stylistic variation in their outputs difficult to identify and control. We study whether recurring styles in model responses can be discovered without supervision and explicitly controlled. We design an algorithm that learns to separate represe…

• A Shared Taste for Model-Written Text: The Generator-by-Selector Matrices of "AI-AI Bias" Show No Detectable Own-Model Premium

  Dmitrij \.Zatuchin · 2 October 2026

  Laurito et al. (PNAS 2025) showed that large language models choosing between two descriptions of the same product, paper or film prefer the description written by a language model over the one written by a person, by a wide margin over what human judges do. Their design crosses five generators with…

• Using LLMs to Detect LLM-Generated Texts: A Cross-Generation Analysis

  Haiyue Yuan, Jie Guo, Weidong Qiu, Zheng Huang, Ruizhe Li, Shujun Li · 30 September 2026

  Automated detection of LLM-generated texts (LGTs) is critical, yet dedicated detectors often struggle to generalize across domains and models. While general-purpose LLMs offer flexible zero-shot authorship classification with explanatory rationale, their detection behavior, especially regarding self…

• LA-CPD: Local-Evidence-Aware Change-Point Detection for Human-LLM Authorship Segmentation

  Qing Yang, Zhenyu Mao, Zixiang Luo, Zezheng Wu, Xinghe Cheng, Qinggang Zhang, Jingwei Zhang, Jiapu Wang · 30 September 2026

  As LLM-generated text becomes increasingly human-like, accurately localizing LLM-authored spans in human-LLM co-authored documents is important for attribution and accountability in cases involving copyright infringement, fraud, and other harmful uses of AI-generated content. Sentence-level detector…

• C-HAT-Bench: Benchmarking Chinese AI-Text Detection Beyond Fully Generated Text

  Qing Yang, Zixiang Luo, Zhenyu Mao, Zezheng Wu, Xinghe Cheng, Haibo Chen, Qinggang Zhang, Jiapu Wang, Jingwei Zhang · 30 September 2026

  Large Language Models (LLMs) increasingly participate in writing by modifying or extending human drafts, causing machine involvement to vary in both form and extent. Yet most Machine-Generated Text (MGT) detectors are evaluated only on fully human-written versus fully AI-generated text. Because huma…

• MixDetect: Word-Level Localization and Quantification of AI Editing

  Hongrui Bao, Yubing Ren, Zhendong Pan, Fang Fang, Shi Wang, Yanan Cao · 30 September 2026

  Large language models are increasingly used to edit human-written text rather than generate entire texts from scratch. Conventional AI-text detectors mainly distinguish human-written from fully AI-generated text, while recent methods for AI-edited text typically provide only a text-level label or ed…

• Agents Can Use Base Models to Evade AI Detection

  Bhuwan Dhingra, Danish Pruthi · 30 September 2026

  We show that coding agents equipped with a base language model can successfully assemble responses from its samples to evade detection. Base models have been shown to evade commercial detectors, however, prior "humanization" techniques rely on using these models to paraphrase AI outputs over several…

• Who Gets a Token, and What Does It Carry? Unequal Name Support and Concept Access in Large Language Models

  Mir Tafseer Nayeem, Davood Rafiei · 29 September 2026

  Names are personal identifiers, but they also carry social meaning and are widely used to evaluate how language models treat different people. Such evaluations typically assume that matched names are comparable model inputs. We show that this assumption often fails at the lexical interface: matched …

• Identifying Scientists on X

  Philipp Meier, Katarina Boland, Laura Kallmeyer, Stefan Dietze · 28 September 2026

  With the growing importance of science-related discourse on the Web and the erosion of the classical knowledge order, it is important to identify different user groups, such as scientists, automatically. This work proposes an approach for identifying scientists and non- scientists on X/Twitter based…

• FAVoR: Measuring and Mitigating Author-Style Homogenization in Federated Personalized Generation

  Lu Han, Jingyao Zhang, Katy Ilonka Gero, Nguyen H. Tran · 28 September 2026

  Large language models are increasingly used as personalized writing assistants, but adapting a model across many authors can compromise individual writing style by pulling author-specific signals toward a shared register. Federated parameter-efficient fine-tuning (PEFT) offers a data-local setting f…

• A Mechanistic Study of AI-Text Detection Neurons in Frozen BERT: Sparse Probing and Activation Patching on RAID

  Pawe{\l} Blicharz, Mi{\l}osz Grunwald · 28 September 2026

  AI-generated text detectors achieve high accuracy on standard benchmarks, yet the internal representations that drive these predictions remain poorly understood. We study which neurons in a frozen BERT-base-uncased encoder support AI-text detection, using the RAID benchmark across six generators spa…

• Robust Detection of LLM-Generated Text under Contamination

  Jiaxun Li, Saptarshi Chakraborty, Ambuj Tewari · 25 September 2026

  We study the detection of LLM-generated text under editing and contamination. Modeling human and machine text as finite-order Markov processes with Huber contamination, we characterize an exact boundary for reliable detection under our assumptions. Detection is impossible when contamination is suffi…

• Style, Not Self: Surface Cues Explain Zero-Shot Code Attribution by Large Language Models

  Ehsan Barkhordar, Surendrabikram Thapa · 25 September 2026

  If a language model can recognize code it wrote, it may favor that code as a judge, and instances of one model monitoring each other could collude. We test this zero-shot on current commercial models. Five LLMs generate solutions to MBPP, HumanEval, and DS-1000, seven more to MBPP, and models act as…

• Contrastive Learning for Authorship Verification

  Peter Kirby · 24 September 2026

  Our results show that contrastive learning outperforms a classification-based approach to authorship verification under the tested settings. We identify loss function, batch size, training duration, pre-trained model, input context length, and random text span data augmentation as important factors …

• Beyond Poetry: Can Large Language Models Generate Classical Arabic Maqamat?

  AbdulRahman A. Morsy (Department of Computer Science, School of Engineering and Applied Sciences, George Washington University, Washington DC, United States), Aya Zirikly (Department of Computer Science, School of Engineering and Applied Sciences, George Washington University, Washington DC, United States, Center for Speech and Language Processing, Whiting School of Engineering, Johns Hopkins University, Baltimore MD, United States) · 24 September 2026

  Large language models (LLMs) have shown strong performance in creative text generation, yet their ability to produce culturally grounded and stylistically constrained literary forms remains underexplored. Prior work has focused largely on modern language varieties and poetry, while classical prose t…

• AraGenre 2026: A Hierarchical Definition-Guided Arabic Genre Classification Shared Task

  Mo El-Haj, Saad Ezzini, Shadi Abudalfa, Mustafa Jarrar, Nguyen Minh Chi, Nguyen Minh Quan · 24 September 2026

  AraGenre is a shared task on hierarchical, definition-guided Arabic genre classification, motivated by the limited availability of annotated data in Arabic and other low-resource languages. Systems assign each Arabic text segment both a broad communicative genre and a fine-grained specific genre. Th…

• The Challenge of Identifying the Origin of Black-Box Large Language Models

  Ziqing Yang, Yixin Wu, Yun Shen, Wei Dai, Michael Backes, Yang Zhang · 23 September 2026

  The tremendous commercial potential of large language models (LLMs) has heightened concerns over their unauthorized use. To address this, we focus on the task of identifying the origin of black-box LLMs. We further propose PlugAE, an effective and efficient identification method that proactively lev…

• Identifying Intelligent Processes via Online Sequential Testing

  Aritra Das, Debayan Gupta · 23 September 2026

  Active sequential hypothesis testing studies how to identify an unknown hypothesis with a given set of sensing actions. We study this in the setting of identifying large language models (LLMs), \textit{i.e.}, if a user is conversing with an LLM drawn from a known set of models, how can they identify…

• Detecting GPT-Assisted Writing Using Interpretable Stylometric Features

  Rajesh Kumar, Nabeel Siddiqui, Alexander Fuchsberger · 23 September 2026

  Distinguishing GPT-assisted from independently authored student writing has become a critical challenge in academia. This paper evaluates the discriminative capability of interpretable stylometric features extracted solely from submitted text. Using data from 90 participants who wrote both independe…

• Authorship identification under domain shift: a survey of stylistic measures and learned author representations

  Haining Wang · 22 September 2026

  Authorship identification uses patterns in writing to infer who wrote a text, but those patterns also reflect topic, genre, and register. This survey argues that topic-independence is not a property of a stylistic feature but of the feature together with its encoding, its scoring rule, and the evalu…

• Fairness Beyond Anonymization? Demographic Leakage in German LLM-Generated Resumes

  Charlotte Leininger, Helena Veit, Matthias A{\ss}enmacher, Andreas Bender · 22 September 2026

  Large language models (LLMs) are increasingly integrated into AI-assisted hiring pipelines, including automated resume generation and screening. Under the EU AI Act, the hiring domain is classified as high-risk, making fairness and transparency critical requirements. Existing work has primarily focu…

• Privacy Personalization Trade offs in LLMs: The Impact of Stylometric Signal Reduction on User-Specific Text Generation

  Muhammed Nazmul Arefin, Omar Jamal Hammad · 22 September 2026

  Large language models (LLMs) have demonstrated the ability to generate user-specific text with high stylistic fidelity. However, the personal data that enables such personalization frequently embeds demographic, cultural, and stylistic markers that raises concerns about stylometric re- identificatio…

• SlopShape: Identifying AI-Generated Commercial Web Content

  Jochen Madler (Sitefire) · 18 September 2026

  Word-level detectors identify unedited AI-generated text almost perfectly, but the literature documents their brittleness under rewording, and a word-level score neither characterizes a text nor identifies which AI model wrote it. We ask whether AI-generated text can be identified one level deeper, …