7 papers
EGIP: An Evidence-Grounded Interaction Protocol for Clinical Agents
Zecheng Ren, Ruichen Cong, Yi Min Chen +8
Interactive clinical agents acquire evidence through patient dialogue and diagnostic examinations, yet their performance also depends on how the interaction environment exposes inf…
RenderMatte: Exact-Alpha Rendering and Group-Relative Alignment for Image Matting
Zecheng Ren, Yafei Hu, Jianing Zhao +3
Image matting is an essential enabling technology for modern visual content production, where foreground extraction determines the realism and editability of downstream creation wo…
HyEm: Query-Adaptive Hyperbolic Retrieval for Biomedical Ontologies via Euclidean Vector Indexing
Ou Deng, Shoji Nishimura, Atsushi Ogihara +1
Retrieval-augmented generation (RAG) for biomedical knowledge faces a hierarchy-aware ontology grounding challenge: resources like HPO, DO, and MeSH use deep ``is-a" taxonomies, ye…
Statistical-Neural Interaction Networks for Interpretable Mixed-Type Data Imputation
Ou Deng, Shoji Nishimura, Atsushi Ogihara +1
Real-world tabular databases routinely combine continuous measurements and categorical records, yet missing entries are pervasive and can distort downstream analysis. We propose St…
Auditable Unit-Aware Thresholds in Symbolic Regression via Logistic-Gated Operators
Ou Deng, Ruichen Cong, Jianting Xu +3
AI for health will only scale when models are not only accurate but also readable, auditable, and governable. Many clinical and public-health decisions hinge on numeric thresholds…
Evolutionary Causal Discovery with Relative Impact Stratification for Interpretable Data Analysis
Ou Deng, Shoji Nishimura, Atsushi Ogihara +1
This study proposes Evolutionary Causal Discovery (ECD) for causal discovery that tailors response variables, predictor variables, and corresponding operators to research datasets.…
Missing Data Imputation Based on Dynamically Adaptable Structural Equation Modeling with Self-Attention
Ou Deng, Qun Jin
Addressing missing data in complex datasets including electronic health records (EHR) is critical for ensuring accurate analysis and decision-making in healthcare. This paper propo…