Detecting Primary Progressive Aphasia (PPA) from Text: A Benchmarking Study (2026.findings-eacl)
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Ghofrane Merhbene, Fabian Lecron, Philippe Fortemps, Bradford C. Dickerson, Mascha Kurpicz-Briki, Neguine Rezaii
| Challenge: | Primary progressive aphasia (PPA) is a neurodegenerative disorder characterized by progressive language deficits as the primary symptom. |
| Approach: | They benchmarked the performance of traditional machine learning models with various feature extraction techniques, transformer-based models, and large language models (LLMs) they found that transformer-Based models exceeded chance-level performance in terms of balanced accuracy, while MLP using MentalBert’s embeddings achieved the highest accuracy. |
| Outcome: | The proposed models outperform chance-level models in terms of balanced accuracy while using MentalBert’s embeddings achieve the highest accuracy. |
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