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Jiaxin Bai

Hong Kong University of Science and Techonoly

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Preprint Oct 2026

MOSAIC: An Omni-Modal Benchmark for Long-Term Memory and Cross-Modal Reasoning in Conversational Agents

Omni-modal assistants must remember not only what users say, but also what they show and convey. Existing long-term memory benchmarks are mostly text-and-image or report a single end-to-end score, so they cannot locate whether evidence is lost when it is represented, retrieved, delivered, or read. We introduce MOSAIC,...

Hong Ting Tsang, Bo-Yi Zhang, Haoyu Huang et al. · 0 citations
#artificial intelligence Preprint Oct 2026

JockeyBench: Evaluating LLM Agents on Horse-Racing Decision-Making

Repeated event forecasting requires extracting predictive signals from noisy evidence and evaluating their value across successive decisions. We introduce JockeyBench, a benchmark and evaluation protocol that studies this problem through historical Japanese horse racing. The protocol combines time-gated evidence, price...

Zhong-Wei Xie, Xing-Su Li, Jing Yu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

AgentIdeaBench: Benchmarking Scientific Ideation in the Agent Era

AgentIdeaBench is introduced, a multidisciplinary benchmark that evaluates scientific ideation under two matched settings, static observation and active exploration, and Scientific World Modeling is explored, a generation-time loop that refines a draft hypothesis through structured thought experiments.

Yunxiang Mo, Tianshi ZHENG, Yi-Sen Gao et al. · 1 citation
Preprint Aug 2026

Does More Retrieved Evidence Help Visual Retrieval-Augmented Generation with Diffusion Language Models?

It is shown that broader retrieval benefits visual DLM-RAG through selective evidence admission rather than unconditional evidence expansion, and the Entropy-Based Candidate Filter (ECF), a training-free evidence-admission framework is proposed, shows that broader retrieval benefits visual DLM-RAG through selective evi...

Jiankun Wang, Yi-Sen Gao, Zi-Wei Zhang et al. · 0 citations
Jul 2026

VisualPatchWorld: Code World Models as Latent Structured Representations for Planning

VisualPatchWorld is introduced, which represents world dynamics as code and first selects a qualitative dynamical form with short active probes, then fits that form's free parameters from recorded state-action traces by minimizing multi-step prediction error.

Jiaxin Bai, Jia–Jie Xiong · 0 citations

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