arXiv Machine Learning

A Neurosymbolic Approach for Explainable Early Diagnosis of Alzheimer's Disease

arXiv:2607. 29530v1 Announce Type: new Abstract: Identifying reliable Alzheimer's disease (AD) markers typically requires manual, labor-intensive transcription and expert analysis, limiting its scale.

arXiv AI
Aug 21

Longitudinal Bayesian Learning of Continuous Disease Position across the Alzheimer's Disease Continuum

arXiv:2608. 19436v1 Announce Type: cross Abstract: Alzheimer's disease (AD) progresses as a continuous biological process, whereas most existing neuroimaging-based artificial intelligence methods remain limited to discrete diagnosis or clinical score prediction from cross-sectional imaging.

By Yingying Zhang, Kun Zhao, Guodong Liu, Qi Huang, Pengfei Gu, Dongchul Kim, Erik Enriquez, Alex D. Leow, Paul M. Thompson, Heng Huang, Hongchang Gao, Liang Zhan, Haoteng Tang
arXiv Machine Learning
Jul 28

Disentangling Acoustic Cues in Alzheimer's Pathology and Perception: The Roles of Language and Gender

arXiv:2607. 23977v1 Announce Type: cross Abstract: Acoustic biomarkers show promise for detecting Alzheimer's Disease (AD), yet whether the cues driving diagnostic AI align with those salient to human listeners is underexplored across languages and genders, where pathological markers and perceptual strategies differ.

By Liu He, Yuanchao Li, Yin-Long Liu, Rui Feng, Yiming Wang, Jiaxin Chen, Yizhe Wang, Jiahong Yuan
arXiv Machine Learning
1d ago

Beyond Decodability: Do Acoustic Factors Drive Predictions in Speech-Based Alzheimer's Assessment?

The study investigates whether acoustic factors encoded in pretrained self‑supervised learning (SSL) models can systematically influence predictions in speech‑based Alzheimer's disease (AD) assessment. Using the ADReSSo dataset and three large SSL backbones, the authors applied controlled noise and reverberation interventions to various audio segments and combined layer‑wise decoding, input‑ and representation‑space interventions, and geometric alignment analysis. The results demonstrate that such acoustic interventions alter AD predictions across all models, with noise producing the strongest effect, and that these effects are structured relative to the classifier’s decision direction and reproducible on a held‑out test set.

By Serli Kopar, Alkis Koudounas, Roshan P. Rane, Sam Gijsen, Paula A. Perez-Toro, Kerstin Ritter
arXiv Machine Learning
Sep 18

Pretrained Medical Representations for the Practical Screening of Drug Repositioning Candidates

The paper introduces a unified pre‑training framework for medical representations that incorporates hierarchical sub‑token aggregation, partial masking, and cross‑reference mechanisms to better capture the structure of medical codes. The resulting model outperforms existing BERT‑based approaches on pre‑training tasks and downstream clinical predictions, such as dementia onset and hospitalization. An in‑silico drug repositioning study for Alzheimer’s disease demonstrates the framework’s ability to rediscover known drugs and prioritize new hypotheses without external literature, establishing a workflow for hypothesis generation and prioritization based on observational data.

By Yuhei Fujioka, Daitaro Misawa, Shingo Fukuma