Search Results for author: Jiaxin Wu

Found 15 papers, 2 papers with code

MolGround: A Benchmark for Molecular Grounding

no code implementations31 Mar 2025 Jiaxin Wu, Ting Zhang, Rubing Chen, WengYu Zhang, Chen Jason Zhang, XiaoYong Wei, Li Qing

Current molecular understanding approaches predominantly focus on the descriptive aspect of human perception, providing broad, topic-level insights.

Descriptive

Generating on Generated: An Approach Towards Self-Evolving Diffusion Models

no code implementations14 Feb 2025 Xulu Zhang, XiaoYong Wei, Jinlin Wu, Jiaxin Wu, Zhaoxiang Zhang, Zhen Lei, Qing Li

Recursive Self-Improvement (RSI) enables intelligence systems to autonomously refine their capabilities.

PolySmart @ TRECVid 2024 Medical Video Question Answering

no code implementations20 Dec 2024 Jiaxin Wu, Yiyang Jiang, Xiao-Yong Wei, Qing Li

Specifically, we provide the video captions generated by the LLaVA-Next-Video model and the video subtitles with timestamps as context, and ask GPT4 to generate step captions for the given medical query.

Question Answering Text Retrieval +2

PolySmart @ TRECVid 2024 Video Captioning (VTT)

no code implementations20 Dec 2024 Jiaxin Wu, WengYu Zhang, Xiao-Yong Wei, Qing Li

In this paper, we present our methods and results for the Video-To-Text (VTT) task at TRECVid 2024, exploring the capabilities of Vision-Language Models (VLMs) like LLaVA and LLaVA-NeXT-Video in generating natural language descriptions for video content.

Video Captioning

Multi-Level Querying using A Knowledge Pyramid

no code implementations31 Jul 2024 Rubing Chen, Xulu Zhang, Jiaxin Wu, Wenqi Fan, Xiao-Yong Wei, Qing Li

We propose a multi-layer knowledge pyramid approach within the RAG framework to achieve a better balance between precision and recall.

Knowledge Graphs RAG +1

Uncertainty Estimation of Large Language Models in Medical Question Answering

no code implementations11 Jul 2024 Jiaxin Wu, Yizhou Yu, Hong-Yu Zhou

In this work, we benchmark popular UE methods with different model sizes on medical question-answering datasets.

Question Answering Text Generation

Improving Interpretable Embeddings for Ad-hoc Video Search with Generative Captions and Multi-word Concept Bank

no code implementations9 Apr 2024 Jiaxin Wu, Chong-Wah Ngo, Wing-Kwong Chan

Experimental results show that the integration of the above-proposed elements doubles the R@1 performance of the AVS method on the MSRVTT dataset and improves the xinfAP on the TRECVid AVS query sets for 2016-2023 (eight years) by a margin from 2% to 77%, with an average about 20%.

Ad-hoc video search

Interpretable Embedding for Ad-hoc Video Search

1 code implementation19 Feb 2024 Jiaxin Wu, Chong-Wah Ngo

Answering query with semantic concepts has long been the mainstream approach for video search.

Ad-hoc video search

Reinforcement Learning Enhanced PicHunter for Interactive Search

no code implementations 29th International Conference on Multimedia Modeling 2023 Zhixin Ma, Jiaxin Wu, Weixiong Loo, and Chong-Wah Ngo

With these improvements, the interactive system only searches a subset of video datasets relevant to a query while being able to quickly perform Bayesian updates with systematic planning to recommend the most probable candidates that can potentially lead to minimum iteration rounds.

Bayesian Inference reinforcement-learning +1

Graph Learning based Generative Design for Resilience of Interdependent Network Systems

no code implementations3 Jul 2022 Jiaxin Wu, Pingfeng Wang

As for enhancing the designs, challenges have arisen for designing a robust system due to the increasing scale of modern systems and the complicated underlying physical constraints.

Graph Learning

(Un)likelihood Training for Interpretable Embedding

1 code implementation1 Jul 2022 Jiaxin Wu, Chong-Wah Ngo, Wing-Kwong Chan, Zhijian Hou

Cross-modal representation learning has become a new normal for bridging the semantic gap between text and visual data.

Ad-hoc video search Decoder +3

Spectral Graph Clustering for Intentional Islanding Operations in Resilient Hybrid Energy Systems

no code implementations13 Mar 2022 Jiaxin Wu, Xin Chen, Sobhan Badakhshan, Jie Zhang, Pingfeng Wang

Establishing cleaner energy generation therefore improving the sustainability of the power system is a crucial task in this century, and one of the key strategies being pursued is to shift the dependence on fossil fuel to renewable technologies such as wind, solar, and nuclear.

Clustering Graph Clustering +1

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