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Bibliographic Details
Main Authors:	Liu, Yuyu, Patil, Sarang Rajendra, Xu, Mengjia, Ma, Tengfei
Format:	Preprint
Published:	2026
Subjects:	Artificial Intelligence
Online Access:	https://arxiv.org/abs/2604.21027
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Hyperbolic Large Language Models
by: Patil, Sarang, et al.
Published: (2025)

A Comparative Study on Dynamic Graph Embedding based on Mamba and Transformers
by: Pandey, Ashish Parmanand, et al.
Published: (2024)

HypRAG: Hyperbolic Dense Retrieval for Retrieval Augmented Generation
by: Madhu, Hiren, et al.
Published: (2026)

Question-Answering Based Summarization of Electronic Health Records using Retrieval Augmented Generation
by: Saba, Walid, et al.
Published: (2024)

EHR-RAGp: Retrieval-Augmented Prototype-Guided Foundation Model for Electronic Health Records
by: Shurrab, Saeed, et al.
Published: (2026)

FeatEHR-LLM: Leveraging Large Language Models for Feature Engineering in Electronic Health Records
by: Karami, Hojjat, et al.
Published: (2026)

RAM-EHR: Retrieval Augmentation Meets Clinical Predictions on Electronic Health Records
by: Xu, Ran, et al.
Published: (2024)

DR.EHR: Dense Retrieval for Electronic Health Record with Knowledge Injection and Synthetic Data
by: Zhao, Zhengyun, et al.
Published: (2025)

CDMT-EHR: A Continuous-Time Diffusion Framework for Generating Mixed-Type Time-Series Electronic Health Records
by: Liu, Shaonan, et al.
Published: (2026)

Multi-Hop Reasoning for Question Answering with Hyperbolic Representations
by: Welz, Simon, et al.
Published: (2025)

EHR-RAG: Bridging Long-Horizon Structured Electronic Health Records and Large Language Models via Enhanced Retrieval-Augmented Generation
by: Cao, Lang, et al.
Published: (2026)

Fine-Grained Knowledge Structuring and Retrieval for Visual Question Answering
by: Zhang, Zhengxuan, et al.
Published: (2025)

FHIR-AgentBench: Benchmarking LLM Agents for Realistic Interoperable EHR Question Answering
by: Lee, Gyubok, et al.
Published: (2025)

Hyp2Former: Hierarchy-Aware Hyperbolic Embeddings for Open-Set Panoptic Segmentation
by: Lu, Yao, et al.
Published: (2026)

DocSage: An Information Structuring Agent for Multi-Doc Multi-Entity Question Answering
by: Lin, Teng, et al.
Published: (2026)

EHR-SeqSQL : A Sequential Text-to-SQL Dataset For Interactively Exploring Electronic Health Records
by: Ryu, Jaehee, et al.
Published: (2024)

MixEHR-Nest: Identifying Subphenotypes within Electronic Health Records through Hierarchical Guided-Topic Modeling
by: Wang, Ruohan, et al.
Published: (2024)

SHMamba: Structured Hyperbolic State Space Model for Audio-Visual Question Answering
by: Yang, Zhe, et al.
Published: (2024)

Hierarchical Mamba Meets Hyperbolic Geometry: A New Paradigm for Structured Language Embeddings
by: Patil, Sarang, et al.
Published: (2025)

Recent Advances in Predictive Modeling with Electronic Health Records
by: Wang, Jiaqi, et al.
Published: (2024)

HypKG: Hypergraph-based Knowledge Graph Contextualization for Precision Healthcare
by: Xie, Yuzhang, et al.
Published: (2025)

ChartInsights: Evaluating Multimodal Large Language Models for Low-Level Chart Question Answering
by: Wu, Yifan, et al.
Published: (2024)

Question Answering on Patient Medical Records with Private Fine-Tuned LLMs
by: Kothari, Sara, et al.
Published: (2025)

Automated Fusion of Multimodal Electronic Health Records for Better Medical Predictions
by: Cui, Suhan, et al.
Published: (2024)

Benchmarking Foundation Models with Multimodal Public Electronic Health Records
by: Yu, Kunyu, et al.
Published: (2025)

Evaluating Search Engines and Large Language Models for Answering Health Questions
by: Fernández-Pichel, Marcos, et al.
Published: (2024)

EfficientRAG: Efficient Retriever for Multi-Hop Question Answering
by: Zhuang, Ziyuan, et al.
Published: (2024)

Efficient Medical Question Answering with Knowledge-Augmented Question Generation
by: Khlaut, Julien, et al.
Published: (2024)

Toward Semantic Interoperability of Electronic Health Records
by: Berges, Idoia, et al.
Published: (2024)

HypRL: Reinforcement Learning of Control Policies for Hyperproperties
by: Hsu, Tzu-Han, et al.
Published: (2025)

DRESSing Up LLM: Efficient Stylized Question-Answering via Style Subspace Editing
by: Ma, Xinyu, et al.
Published: (2025)

HypER: Literature-grounded Hypothesis Generation and Distillation with Provenance
by: Vasu, Rosni, et al.
Published: (2025)

Large Language Models to Identify Social Determinants of Health in Electronic Health Records
by: Guevara, Marco, et al.
Published: (2023)

Predictive Modeling with Temporal Graphical Representation on Electronic Health Records
by: Chen, Jiayuan, et al.
Published: (2024)

Generative Foundation Model for Structured and Unstructured Electronic Health Records
by: Sivarajkumar, Sonish, et al.
Published: (2025)

Patient-Level Multimodal Question Answering from Multi-Site Auscultation Recordings
by: Wu, Fan, et al.
Published: (2026)

Electronic Health Records: Towards Digital Twins in Healthcare
by: Alkan, Muhammet, et al.
Published: (2025)

Multimodal Fusion of EHR in Structures and Semantics: Integrating Clinical Records and Notes with Hypergraph and LLM
by: Cui, Hejie, et al.
Published: (2024)

Trustworthy Agents for Electronic Health Records through Confidence Estimation
by: Song, Yongwoo, et al.
Published: (2025)

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// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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