Chengyi Zhang

PCap: Personalized Retrieval-Stage Diversity Capping in Facebook Marketplace

Guangchao Yuan, Janis Fuh, Christopher Choate, Xun Tang et autres

We propose a personalized capping framework (PCap) to improve the diversity in Facebook Marketplace by introducing user-level diversity constraints at the retrieval stage. PCap models individual diversity preferences using Shannon entropy-based scoring, segments users into diversity buckets, and applies personalized category caps …

Multiple roles of small-molecule sugars: Coating layer construction and pore structure regulation for high-performance wood-based sodium-ion batteries

Yongzhi Chen, Yike Yang, Lihua Wang, Lingfeng Zhou et autres

cn (code pays fourni par la source)

TriM3D: Tri-domain multi-modal learning for unsupervised 3D semantic segmentation

Miaohui Zhang, Shengjie Ren, Linxian Zhu, Chengyi Zhang et autres

Graph-driven contextual synergy network for robust 3D object detection

Miaohui Zhang, Chengyi Zhang, Linxian Zhu, Shengjie Ren et autres

cn (code pays fourni par la source)

RECAP: Feedback-Driven Streaming Semantic User Profiles for Short-Video Recommendation

Ziyi Zhao, X J Zhou, Xiao Lv, Yangyang Li et autres

Language-based user profiles convert long behavioral histories into explicit semantic representations for recommendation. However, most profile generators are optimized in an open loop: they may summarize past behavior fluently, but are not directly trained to improve future recommendation. We study this problem …

RECAP: Feedback-Driven Streaming Semantic User Profiles for Short-Video Recommendation

Ziyi Zhao, X J Zhou, Xiao Lv, Yangyang Li et autres

Language-based user profiles convert long behavioral histories into explicit semantic representations for recommendation. However, most profile generators are optimized in an open loop: they may summarize past behavior fluently, but are not directly trained to improve future recommendation. We study this problem …

cn (code pays fourni par la source)

Generative Discovery of Alloy Catalysts for Radical-Mediated Methane-to-Methanol Conversion

Chengyi Zhang, Qiang Song, Wanping Xu, Yuguang Li et autres

Selective oxidation of methane to methanol under mild conditions remains a “holy grail” in chemical manufacturing, constrained not only by the inertness of the C–H bond but also by the difficulty of controlling highly reactive intermediates once methane is activated. Plasma activation …

nz, au, us (code pays fourni par la source)

MIHP3D: Multi-level interaction and hierarchical perception for 3D object detection

Chengyi Zhang, Shuang Wang, Shengjie Ren, Linxian Zhu et autres

cn (code pays fourni par la source)

RoboSurg-VQA: A Multimodal Benchmark for Surgical Segmentation-Aware Visual Question Answering

Chengyi Zhang, Zi Ye, Ziyang Wang

Reliable visual understanding in robot-assisted and minimally invasive surgery (RMIS/MIS) demands more than accurate masks: in clinical practice, clinicians pose language-like questions about procedural context, visibility, artefacts, and the presence of anatomical structures and surgical instruments, often under degraded views caused by …

RoboSurg-VQA: A Multimodal Benchmark for Surgical Segmentation-Aware Visual Question Answering

Chengyi Zhang, Zi Ye, Ziyang Wang

Reliable visual understanding in robot-assisted and minimally invasive surgery (RMIS/MIS) demands more than accurate masks: in clinical practice, clinicians pose language-like questions about procedural context, visibility, artefacts, and the presence of anatomical structures and surgical instruments, often under degraded views caused by …

gb, ie (code pays fourni par la source)

Intrinsic Coordination Architecture Governing Selectivity Divergence Between Extended and Single‐Site Electrocatalysts

Chengyi Zhang, Ziyun Wang

and nitrate reduction. While thermodynamic descriptors effectively rank catalysts within homologous families, they often fail to rationalize why fundamentally different material classes intrinsically favor distinct reaction pathways. Here, we identify local coordination geometry as a key structural factor that shapes this selectivity …

nz (code pays fourni par la source)

Preparation of amylase-modified bamboo-based hard carbon for high-performance sodium-ion batteries and study of sodium storage mechanism

Yongzhi Chen, Biao Wang, Lihua Wang, Jian Li et autres

cn (code pays fourni par la source)