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Yuhan Zhang

5 papers indexed

arxivcs.CV2026-07-15

AnomExpert: Identifying and Selecting Anatomical Planes for Prenatal Ultrasound Anomaly Diagnosis

Jian Wang, Yang Yang, Ziheng Pan, Xiliang Zhu, Yuhan Zhang, Yanfeng Zhou, et al.

Life-limiting congenital anomalies require accurate prenatal diagnosis for appropriate clinical decision-making. Prenatal ultrasound (US) examinations involve multiple anatomical planes, and diagnosis depends on identifying anatomical planes and selecting diagnostically relevant…

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arxivcs.CV2026-07-01

FrameONE: Hierarchical Motion Modeling for Universal Multi-View Echocardiographic Keyframe Detection

Rusi Chen, Yuhao Huang, Hongyuan Zhang, Chao Tian, Shunan Ji, Yuhan Zhang, et al.

Accurate detection of end-systole (ES) and end-diastole (ED) frames is fundamental to echocardiographic assessment. Existing methods are typically developed in a view-specific manner, depend on auxiliary annotations or intensive visual modeling, which limits their generalizabilit…

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arxivcs.CVcs.AI2026-07-01

Prototype Memory-Guided Training-Free Anomaly Classification and Localization in Prenatal Ultrasound

Huanwen Liang, Yuhao Huang, Xiliang Zhu, Yuanji Zhang, Xuedong Deng, Xinru Gao, et al.

Prenatal anomaly classification and localization is of critical importance for fetal health and pregnancy management. Although ultrasound (US) is the primary modality for prenatal screening, accurate diagnosis remains challenging due to the low prevalence and high heterogeneity o…

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arxivcs.DBcs.AIcs.CLcs.IR2026-06-29

Mandol: An Agglomerative Agent Memory System for Long-Term Conversations

Yuhan Zhang, Zhiyuan Guo, Ziheng Zeng, Wei Wang, Wentao Wu, Lijie Xu

Long-term conversational agents need to remember and query cross-session, multi-typed information with complex correlations. Existing agent memory systems rely on heterogeneous vector and graph databases, which fragment memory information and cause high cross-database I/O latency…

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crossrefForests2026-02-08

Terrain–Climate–Human Couplings of Net Primary Productivity in the Chengdu–Chongqing Economic Circle Revealed by Optimal GeoDetector and Explainable Machine Learning

Sijie Zhuo, Bin Yang, Pan Jiang, Yingchao Sha, Yuxi Wang, Xinchen Gu, et al.

Terrestrial net primary productivity (NPP) integrates vegetation responses to climate, terrain, and human activities, yet their combined effects in mountainous–basin regions remain unclear. Focusing on the Chengdu–Chongqing Economic Circle (CCEC) in southwest China, we build a fr…

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