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Sparse Autoencoder Decomposition of Clinical Sequence Model Representations: Feature Complexity, Task…

Researchers have developed several novel approaches to improve clinical prediction using machine learning on electronic health records (EHRs). One method, Risk Horizons, uses a geometry-aware framework with hyperbolic embeddings to construct patient-specific candidate spaces for predicting future clinical events. Another approach frames clinical diagnosis as an autoregressive sequence modeling task, employing causal decoders from large language models to handle missing modalities and improve interpretability. Additionally, a new model called FlatASCEND focuses on autoregressive clinical sequence generation with continuous time prediction and tests pharmacological associations, while another study uses sparse autoencoders to decompose the representations of such clinical sequence models. AI

IMPACT These advancements could lead to more accurate and interpretable AI-driven diagnostic tools and treatment planning in healthcare.

RANK_REASON Multiple arXiv papers present novel research in clinical prediction and sequence modeling using machine learning techniques.

Read on arXiv cs.LG →

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Sparse Autoencoder Decomposition of Clinical Sequence Model Representations: Feature Complexity, Task…

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COVERAGE [5]

  1. arXiv cs.LG TIER_1 English(EN) · Zhan Qu, Michael F\"arber ·

    Risk Horizons: Structured Hypothesis Spaces for Longitudinal Clinical Prediction

    arXiv:2602.12828v2 Announce Type: replace Abstract: Predicting future clinical events from longitudinal electronic health records (EHRs) requires selecting plausible outcomes from a large and structured event space under sparse observations. While clinical coding systems provide …

  2. arXiv cs.LG TIER_1 English(EN) · Andrew Wang, Ellie Pavlick, Ritambhara Singh ·

    Handling and Interpreting Missing Modalities in Patient Clinical Trajectories via Autoregressive Sequence Modeling

    arXiv:2604.18753v2 Announce Type: replace Abstract: An active challenge in developing multimodal machine learning (ML) models for healthcare is handling missing modalities during training and deployment. As clinical datasets are inherently temporal and sparse in terms of modality…

  3. arXiv cs.LG TIER_1 English(EN) · Chris Sainsbury, Feng Dong, Andreas Karwath ·

    FlatASCEND: Autoregressive Clinical Sequence Generation with Continuous Time Prediction and Association-Based Pharmacological Testing

    arXiv:2605.04071v1 Announce Type: new Abstract: Autoregressive models can predict clinical events, but generating patient-conditioned multi-step trajectories that respond to intervention tokens and testing whether those responses preserve known pharmacological associations has re…

  4. arXiv cs.LG TIER_1 English(EN) · Chris Sainsbury, Feng Dong, Andreas Karwath ·

    Sparse Autoencoder Decomposition of Clinical Sequence Model Representations: Feature Complexity, Task Specialisation, and Mortality Prediction

    arXiv:2605.04072v1 Announce Type: new Abstract: Sparse autoencoders (SAEs) have been applied to large language models and protein language models, but not systematically to electronic health record (EHR) foundation models. We train TopK SAEs on FlatASCEND, a 14.5-million-paramete…

  5. arXiv cs.CL TIER_1 English(EN) · Ruoxuan Xiong ·

    Learning Dynamic Representations and Policies from Multimodal Clinical Time-Series with Informative Missingness

    Multimodal clinical records contain structured measurements and clinical notes recorded over time, offering rich temporal information about the evolution of patient health. Yet these observations are sparse, and whether they are recorded depends on the patient's latent condition.…