LLM-Guided MoE Improves Alzheimer's Prediction and Interpretability.

Farica Zhuang, Seong Woo Han, Zixuan Wen, Shu Yang, Yize Zhao, Li Shen· July 13, 2026 View original

Summary

iLENS is a new framework that uses Large Language Models (LLMs) to guide a Mixture-of-Experts (MoE) model for predicting Alzheimer's Disease conversion. It combines neuroimaging data with unstructured information to provide interpretable, biologically grounded rationales for its predictions.

Researchers have developed iLENS, an innovative framework designed to enhance the prediction and interpretability of Alzheimer's Disease (AD) conversion. This system leverages Large Language Models (LLMs) to guide a Mixture-of-Experts (MoE) architecture, specifically for survival analysis in neuroimaging. The iLENS approach integrates structured neuroimaging measurements with unstructured textual information, allowing the LLM to synthesize diverse data points. This synthesis then informs the routing decisions within the MoE model, directing patient data to specialized "experts" for analysis. The framework not only achieves competitive predictive performance for AD risk but also offers transparent, biologically sound explanations for its routing choices. This capability bridges the gap between high-performance predictive models and the critical need for interpretable clinical decision support in complex medical conditions like Alzheimer's.

Why it matters

This research offers a significant step towards more accurate and understandable AI-driven diagnostics for neurodegenerative diseases, potentially improving patient care and disease management.

How to implement this in your domain

  1. 1Explore integrating LLM-guided expert routing into existing medical diagnostic AI systems for enhanced interpretability.
  2. 2Investigate multimodal data fusion techniques, combining structured and unstructured patient information for richer insights.
  3. 3Develop or adapt survival models to incorporate dynamic, interpretable predictions for disease progression.
  4. 4Collaborate with medical professionals to validate the biological rationales provided by such AI frameworks.

Who benefits

HealthcarePharmaceuticalsMedical DevicesAI/ML Development

Key takeaways

  • iLENS uses LLMs to guide Mixture-of-Experts models for improved Alzheimer's prediction.
  • It combines structured neuroimaging with unstructured data for comprehensive analysis.
  • The framework provides interpretable, biologically grounded rationales for its predictions.
  • This approach enhances both predictive performance and clinical decision support.

Original post by Farica Zhuang, Seong Woo Han, Zixuan Wen, Shu Yang, Yize Zhao, Li Shen

"arXiv:2607.08778v1 Announce Type: cross Abstract: Alzheimer's Disease (AD) is a complex neurodegenerative disorder that continues to impact millions of people worldwide. Predicting AD conversion during the prodromal stage remains critical for disease understanding and patient car…"

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Originally posted by Farica Zhuang, Seong Woo Han, Zixuan Wen, Shu Yang, Yize Zhao, Li Shen on X · view source

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