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Fengbin Zhu

National University of Singapore

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#artificial intelligence Preprint Sep 2026

ResComEmb: Effective and Efficient Multimodal Embedding via Residual Homogeneity Compression

ResComEmb is proposed, a trainable framework for effective and efficient universal multi-vector multimodal embedding that produces higher-quality universal multimodal embeddings than VLM2Vec-V2, and outperforms ColQwen2.5 in visual document retrieval.

Zi-Jing Cai, Yu-Zhe Wang, Jing-Xian Zhu et al. · 0 citations
#artificial intelligence Review Sep 2026

PAWS: Policy-driven Agentic World Simulation

PAWS provides an auditable substrate for evaluating agent influence, policy-response cascades, and action-outcome alignment in historically grounded financial simulations, and shows that high accuracy can mask failure to detect rare stakeholder actions.

Tiviatis Sim, Hui-Wo-On Jia, Xin-Ming Gao et al. · 0 citations
Preprint Aug 2026

Diagnosing Search Behavior and Failure Modes in Long-Horizon Search Agents

By systematically characterizing the search behavior and failure modes of long-horizon search agents, this work points to practical directions for building better deep research systems, including stronger query formulation, more effective evidence selection and context management, and stopping criteria based on whether...

Qi Liu, Jia-Xin Mao, Fengbin Zhu et al. · 2 citations
Preprint Aug 2026

Fetch-then-Explore: Decoupling Selection from Extraction over a Persistent Workspace for Search Agents

Fetch-then-Explore is proposed, which separates page selection from evidence extraction and keeps what it selects: pages are recorded in a per-question workspace on the filesystem rather than the context window or a transient session, and evidence is pulled from them on demand later.

Qi Liu, Yi-Qun Chen, Zidan Chen et al. · 0 citations
#natural language process... Preprint Aug 2026

GenRubric: Self-Evolving Rubric Generation for Scalable LLM Evaluation

GenRubric is introduced, a self-evolving framework that improves rubric generation from unlabeled queries without requiring additional human annotations during self-evolution, and experiments show that self-evolution improves the agreement between evaluations induced by generated rubrics and those induced by expert-wri...

Yifan Chen, Hai-Tao Li, Qing-Yao Ai et al. · 6 citations · ⚡4

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