Kele Xu

Contour-based 3D tongue motion visualization using ultrasound image sequences

2016

This article describes a contour-based 3D tongue deformation visualization framework using B-mode ultrasound image sequences. A robust, automatic tracking algorithm characterizes tongue motion via a contour, which is then used to drive a generic 3D …

Diversifying Message Aggregation in Multi-Agent Communication via Normalized Tensor Nuclear Norm Regularization

2022 · arXiv (Cornell University)

Aggregating messages is a key component for the communication of multi-agent reinforcement learning (Comm-MARL). Recently, it has witnessed the prevalence of graph attention networks (GAT) in Comm-MARL, where agents can be represented as nodes and …

Multi-task Pre-training Language Model for Semantic Network Completion

2023 · ACM Transactions on Asian and Low-Resource Language Information Processing

Semantic networks, exemplified by the knowledge graph, serve as a means to represent knowledge by leveraging the structure of a graph. While the knowledge graph exhibits promising potential in the field of natural language processing, …

Information Diffusion Prediction With Augmented Diffusion Dependency and Multigranularity Temporal Influence

2025 · IEEE Transactions on Computational Social Systems

Information diffusion prediction plays a pivotal role in the analysis of information propagation across social networks. Many existing methods rely on learning social homophily solely from users’ social connections as a single diffusion dependency to …