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Junping Du

15 accepted papers

2026

HFR-MKGC: Hierarchical Fusion Reasoning with MLLMs for Multi-modal Knowledge Graph Completion

AAAI 2026technical

Multi-modal knowledge graph completion (MMKGC) aims to infer missing entities of triples by leveraging heterogeneous information in knowledge graph (KG). However, existing approaches often struggle with inconsistent modality alignment, limited reasoning depth, and insufficient negative sample qualit

Cited by 0SourcePDFScholar
2026

POGA: Paraphrased and Oppositional Graph Alignment for Fine-Grained Cross-Modal Retrieval

CVPR 2026

Most of the models used to generate embeddings for retrieval are not trained for the purpose which leads them to focus on coarse semantic alignment rather than particular object attributes or arrangements. This limits their performance, particularly on challenging problems such as cross-modal fine-g

Cited by 0SourceScholar
2026

Rethink Representation Learning for Questionnaire Data

AAAI 2026technical

Questionnaire data serve as a valuable resource across numerous scientific domains, offering insights into human behavior, health, and social trends. Traditional downsampling-based representation learning methods—such as standardization and one-hot encoding—reformat these data into tabular structure

Cited by 0SourcePDFScholar
2026

ST-VLM: A Spatial-to-Image Multimodal Spatial-Temporal Prediction Framework with Vision-Language Model

AAAI 2026technical

Spatial-temporal prediction plays a crucial role in various domains, including intelligent transportation and environmental monitoring. Although large language model has shown advantages in long-range dependency modeling and excellent generalization ability for forecasting, it has limited understand

Cited by 0SourcePDFScholar
2025

ADPFedGNN: Adaptive Decoupling Personalized Federated Graph Neural Network

IJCAI 2025

Personalized federated graph neural networks (PFGNN) are an emerging technology that allows multiple graph data owners to collaboratively train personalized models without sharing raw data. However, the Non-IID nature of graph data can cause the coupling of global and local knowledge parameters, whi

Cited by 0SourcePDFScholar
2025

CFPT: Empowering Time Series Forecasting through Cross-Frequency Interaction and Periodic-Aware Timestamp Modeling

ICML 2025poster

Long-term time series forecasting has been widely studied, yet two aspects remain insufficiently explored: the interaction learning between different frequency components and the exploitation of periodic characteristics inherent in timestamps. To address the above issues, we propose **CFPT**, a nov…

2025

CSAHFL:Clustered Semi-Asynchronous Hierarchical Federated Learning for Dual-layer Non-IID in Heterogeneous Edge Computing Networks

IJCAI 2025

Federated Learning (FL) enables collaborative model training across distributed devices without sharing raw data. Hierarchical Federated Learning (HFL) is a new paradigm of FL that leverages the Edge Servers (ESs) layer as an intermediary to perform partial local model aggregation in proximity, redu

Cited by 0SourcePDFScholar
2025

Generating Synthetic Data for Unsupervised Federated Learning of Cross-Modal Retrieval

AAAI 2025technical

Unsupervised federated learning for cross-modal retrieval has received increasing attention in recent years as it can free the requirement for annotations and avoid uploading original clients’ data to servers. Most existing methods focus on how to learn better local models and their aggregation to o…

Cited by 0SourcePDFScholar
2025

Rethinking Byzantine Robustness in Federated Recommendation from Sparse Aggregation Perspective

AAAI 2025technical

To preserve user privacy in recommender systems, federated recommendation (FR) based on federated learning (FL) emerges, keeping the personal data on the local client and updating a model collaboratively. Unlike FL, FR has a unique sparse aggregation mechanism, where the embedding of each item is up…

2024

Efficient Asynchronous Federated Learning with Prospective Momentum Aggregation and Fine-Grained Correction

AAAI 2024technical

Asynchronous federated learning (AFL) is a distributed machine learning technique that allows multiple devices to collaboratively train deep learning models without sharing local data. However, AFL suffers from low efficiency due to poor client model training quality and slow server model convergenc…

Cited by 9SourcePDFScholar
2024

Self-Supervised Multi-Modal Knowledge Graph Contrastive Hashing for Cross-Modal Search

AAAI 2024technical

Deep cross-modal hashing technology provides an effective and efficient cross-modal unified representation learning solution for cross-modal search. However, the existing methods neglect the implicit fine-grained multimodal knowledge relations between these modalities such as when the image contains…

Cited by 7SourcePDFScholar
2022

CCPL: Contrastive Coherence Preserving Loss for Versatile Style Transfer

ECCV 2022poster

"In this paper, we aim to devise a universally versatile style transfer method capable of performing artistic, photo-realistic, and video style transfer jointly, without seeing videos during training. Previous single-frame methods assume a strong constraint on the whole image to maintain temporal co…

2021

Clustering-Induced Adaptive Structure Enhancing Network for Incomplete Multi-View Data

IJCAI 2021poster

Incomplete multi-view clustering aims to cluster samples with missing views, which has drawn more and more research interest. Although several methods have been developed for incomplete multi-view clustering, they fail to extract and exploit the comprehensive global and local structure of multi-view…

Cited by 41SourcePDFScholar
2017

Noisy Softmax: Improving the Generalization Ability of DCNN via Postponing the Early Softmax Saturation

CVPR 2017poster

Over the past few years, softmax and SGD have become a commonly used component and the default training strategy in CNN frameworks, respectively. However, when optimizing CNNs with SGD, the saturation behavior behind softmax always gives us an illusion of training well and then is omitted. In this p…

Cited by 170PDFScholar
2017

Reliable Crowdsourcing and Deep Locality-Preserving Learning for Expression Recognition in the Wild

CVPR 2017poster

Past research on facial expressions have used relatively limited datasets, which makes it unclear whether current methods can be employed in real world. In this paper, we present a novel database, RAF-DB, which contains about 30000 facial images from thousands of individuals. Each image has been ind…

Cited by 1966PDFScholar