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Zhihong Zhang

13 accepted papers

2026

From Retrieval to Translation: Translating Query into Graph-level Clues for Retrieval-Augmented Generation

ICML 2026poster

Retrieval-Augmented Generation (RAG) has recently been enhanced with tree or graph structures to match user intent for precise passage retrieval, which facilitates large language models (LLMs) in effectively mitigating hallucinations by leveraging external knowledge. However, we identify that existi…

Cited by 0SourceScholar
2026

Safe and Efficient Control: A Subgraph-Augmented Hierarchical Reinforcement Learning Framework for Dynamically Reconfigurable Battery Systems

IJCAI 2026

Dynamically Reconfigurable Battery (DRB) systems employ power electronic switches to create dynamic topologies. They enable effective management of cell difference through real-time adjustment of cell connections. However, existing DRB control methods struggle to learn effective strategies due to sp

Cited by 0Scholar
2026

Temporal Graph Thumbnail: Robust Representation Learning with Global Evolutionary Skeleton

ICLR 2026poster

Temporal graphs are commonly employed as conceptual models for capturing time-evolving interactions in real-world systems. Representation learning on such non-Euclidean data typically depends on aggregating information from neighbors, and the presence of temporal dynamics further complicates this pr…

Cited by 0SourceScholar
2025

Beyond the Answer: Advancing Multi-Hop QA with Fine-Grained Graph Reasoning and Evaluation

ACL 2025long

Recent advancements in large language models (LLMs) have significantly improved the performance of multi-hop question answering (MHQA) systems. Despite the success of MHQA systems, the evaluation of MHQA is not deeply investigated. Existing evaluations mainly focus on comparing the final answers of…

2025

DVI:A Derivative-based Vision Network for INR

ICML 2025poster

Recent advancements in computer vision have seen Implicit Neural Representations (INR) becoming a dominant representation form for data due to their compactness and expressive power. To solve various vision tasks with INR data, vision networks can either be purely INR-based, but are thereby limited…

Cited by 0SourcePDFScholar
2025

Optimize Battery Control: A Multi-Objective Evolutionary Ensemble Reinforcement Learning Approach

IJCAI 2025

The Dynamically Reconfigurable Battery (DRB) systems, which use high-speed power electronic switches to dynamically adjust battery interconnections in real-time, are critical to the performance of the battery pack. Traditional battery management strategies often fail to address multi-objective optim

Cited by 0SourcePDFScholar
2023

3D Point Cloud Completion Based on Multi-Scale Degradation

ICASSP 2023accepted

Recent advances in 3D point cloud completion adopt unsupervised deep learning-based methods, which does not rely on labeled data and improves generalization ability. However, existing methods tend to focus more on the generation overall shape rather than detailed structure. To explore unsupervised 3…

Cited by 0SourceScholar
2023

ESSEN: Improving Evolution State Estimation for Temporal Networks using Von Neumann Entropy

NeurIPS 2023poster

Temporal networks are widely used as abstract graph representations for real-world dynamic systems. Indeed, recognizing the network evolution states is crucial in understanding and analyzing temporal networks. For instance, social networks will generate the clustering and formation of tightly-knit g…

2018

Deep Multi-Task Learning to Recognise Subtle Facial Expressions of Mental States

ECCV 2018poster

Facial expression recognition is a topical task. However, very little research investigates subtle expression recognition, which is important for mental activity analysis, deception detection, etc. We address subtle expression recognition through convolutional neural networks (CNNs) by developing mu…

Cited by 55SourcePDFScholar
2018

Deep Stock Representation Learning: From Candlestick Charts to Investment Decisions

ICASSP 2018accepted

We propose a novel investment decision strategy (IDS) based on deep learning. The performance of many IDSs is affected by stock similarity. Most existing stock similarity measurements have the problems: (a) The linear nature of many measurements cannot capture nonlinear stock dynamics; (b) The estim…

Cited by 0SourceScholar
2017

Attribute-Enhanced Face Recognition With Neural Tensor Fusion Networks

ICCV 2017spotlight

Deep learning has achieved great success in face recognition, however deep-learned features still have limited invariance to strong intra-personal variations such as large pose. It is observed that some facial attributes (e.g. eyebrow thickness, gender) are invariant to such variations. We present t…

Cited by 100PDFScholar