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Claudiu Creanga

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#natural language process... Preprint Oct 2026

Ontological Instability and Statistical Amplification: The Paradox of"Humanizing"LLM-Generated Text

Supervised AI-text detectors report high benchmark accuracy, but it is not clear what their decisions are based on. We analyze a RoBERTa-based detector under semantic, structural, and tokenizer-level perturbations, using the M4 dataset (N = 10,000) and controlled generations (N = 300). When Mistral-7B-Instruct was aske...

Claudiu Creanga, Liviu P. Dinu · 0 citations
#natural language process... Preprint Jul 2026

Fine-Tuning Models for Biomedical Relation Extraction

This paper presents pre-trained models (PTMs) for the automatic extraction of relations from biomedical text, specifically targeting the variant-phenotype domain and demonstrates that fine-tuning small BERT-based models, particularly DeBERTa, yields strong performance, approaching the current state-of-the-art (SOTA).

Claudiu Creanga, L. Dinu, Daniela Gîfu · 0 citations

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