الباحثون

Xiang Li

المنشورات 14

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One Frame, Full Heartbeat: ECG-Free Cardiac Cine MRI Synthesis via Phase-Conditioned Flow Matching

Shiyi Wang, Ruochen Sun, Peirong Liu وآخرون · 2026

Cine cardiovascular magnetic resonance (CMR) analysis relies on multi-frame sequences capturing the full cardiac cycle. However, standard multi-frame acquisition depends heavily on electrocardiogram (ECG) gating and repeated breath-holds, posing challenges in uncooperative populations, resource-limited settings, and te …

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One Frame, Full Heartbeat: ECG-Free 4D Cardiac Cine MRI Synthesis via Radial-Decomposed Flow Matching

Shiyi Wang, Ruochen Sun, Xiang Li وآخرون · 2026

Cine cardiovascular magnetic resonance (CMR) captures the cardiac cycle as a four-dimensional (4D) sequence, but standard acquisition requires electrocardiogram (ECG) gating and repeated breath holds. Visual realism alone does not establish accurate patient-specific ejection fraction (EF) or ventricular volumes. We pre …

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When Talk Isn't Code: Comparing LLM Agents That Simulate and Develop Software

Xiang Li, Aichun Huang, Mingming Zhang وآخرون · 2026

LLMs are used both to simulate network protocol implementations, as honeypots do, and to write them. Prior work evaluates the two uses separately, from a model's answers or conversations in one case and from its generated code in the other. We observe that a knowledge probe (asking the model which security checks an im …

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Conformal Prediction with Paraphrase-Aware Scoring for LLM Uncertainty Quantification

Jiayi Xin, Evan Qiang, Zihan Zhu وآخرون · 2026

Uncertainty quantification (UQ) for large language models (LLMs) aims to provide reliable measures of predictive confidence, yet current methods are often unstable under meaning-preserving perturbations. Semantically equivalent paraphrases can induce substantial variability in predictive confidence, even for methods wi …

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Zero2Repo: Can Coding Agents Build Repositories from Scratch?

Pei Yang, Tianyu Shi, Yuhang Yao وآخرون · 2026

Coding agents are increasingly asked to build software rather than patch it, yet benchmarks for from-scratch repository construction are mostly limited to a single language and depend on manually curated tasks. We introduce Zero2Repo, a benchmark in which an agent receives a product requirements document, an interface …

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FoundDSR: A Generalizable Foundation Model with Guided 2D Gaussian Splatting for Depth Super-Resolution

Zhengxue Wang, Zhiqiang Yan, Yuan Wu وآخرون · 2026

We introduce FoundDSR, a generalizable foundation model for robust depth reconstruction across unseen data distributions using RGB-D pairs. FoundDSR begins with a guided 2D Gaussian Splatting strategy to model depth representations with Gaussian primitives. This strategy employs high-resolution RGB as prompts to optimi …

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M3D-Net: Hierarchical Coordination of Spatial Context, Feature Reuse, and Differential Attention for Mammography Classification

Zheng Yu, Xin-Hang Li, Jiabao Gao وآخرون · 2026

Breast image classification requires local detail and global tissue context, yet these cues can weaken as representations deepen. We present M3D-Net, a mammography encoder that hierarchically coordinates multi-scale coordinate attention, bounded dynamic feature reuse, and differential attention through resolution-aware …

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Spoken Language Models that Think Aloud

Junyi Ao, Kainan Peng, Mingbo Ma وآخرون · 2026

While Chain-of-Thought (CoT) reasoning has improved the capability of language models, directly applying it to Spoken Language Models (SLMs) may introduce long silent intervals under the serial "think-then-speak" paradigm, disrupting real-time spoken interaction. To address this issue, we propose an asynchronous think- …

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FeasibleFlow: One-Step Joint Transport of Configuration Feasibility and Trajectories for End-to-End Driving

Xiang Li, Bikun Wang, Qing Xu وآخرون · 2026

End-to-end autonomous driving maps current observations directly to future trajectories, yet those trajectories must remain valid as the scene evolves. Future state modeling aims to address this temporal mismatch, but general representations often contain information unrelated to ego planning and affect trajectory gene …

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DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression

DeepSeek-AI, Anyi Xu, B. Li وآخرون · 2026

The widespread adoption of long-horizon agents has made model workloads increasingly input-heavy. Although prior work has substantially reduced the cost of long-context computation, prefill remains computationally expensive, and large KV caches continue to strain HBM and SSD capacity and data-transfer bandwidth. Togeth …

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Benchmarking Visual-Inertial Odometry in Subterranean Environments Under Sensor Degradation, Miscalibration, and Dynamic Occlusion

Yueying Zhu, Xiang Li, Thien-Minh Nguyen وآخرون · 2026

Visual-inertial odometry (VIO) is a core capability for autonomous operation in GPS-denied subterranean environments, yet its reliability can degrade sharply under sensor drift, calibration errors, and dynamic occlusion. Existing evaluations mainly emphasize nominal-condition accuracy, offering limited insight into whe …

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Rewarding Reasoning, Not Answers: Fixing and Bounding Test-Time Reinforcement Learning on Medical QA

Kailong Fan, Anqi Pu, Yichen Wu وآخرون · 2026

Test-time reinforcement learning adapts a model on its own unlabeled test set using majority-vote pseudo-labels and has shown strong results in mathematics. We show that this recipe collapses on medical multiple-choice QA: accuracy stagnates while output diversity rapidly declines. Through a controlled experiment that …

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Patterns of Movement Performance among Japanese Children and Effects of Parenting Practices: Latent class analysis

Zhu Zhu, Cunyoen Kim, Dandan Jiao وآخرون · مجلة جامعة السلطان قابوس الطبية · 2025 · 10.18295/squmj.1.2022.008

Objectives: This study aimed to examine the long-term effects of parenting practice during preschool years on children’s movement performance in primary school. Methods: This three-year longitudinal study included 225 children aged 3–6-years-old. Parents reported baseline parenting practice and evaluated children’s mov …

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