no code implementations • 25 Oct 2023 • Ke-Jia Chen, Yaming Ji, Youran Qu, Chuhan Xu
Secondly, the original signed graph is selectively augmented with the use of (1) an edge perturbation regulator to balance the number of positive and negative edges and to determine the ratio of perturbed edges to original edges and (2) an edge utility filter to remove the negative edges with low utility to make the graph structure more balanced.
no code implementations • 16 Dec 2021 • Jie Zhang, Ke-Jia Chen, Jingqiang Chen
Sequential recommendation based on multi-interest framework models the user's recent interaction sequence into multiple different interest vectors, since a single low-dimensional vector cannot fully represent the diversity of user interests.
no code implementations • 16 Dec 2021 • Linpu Jiang, Ke-Jia Chen, Jingqiang Chen
Specifically, a novel temporal subgraph sampling strategy is firstly proposed, which takes each node of the dynamic graph as the central node and uses both neighborhood structures and edge timestamps to sample the corresponding temporal subgraph.
1 code implementation • 24 Feb 2021 • Ke-Jia Chen, Jiajun Zhang, Linpu Jiang, Yunyun Wang, Yuxuan Dai
This paper proposes a pre-training method on dynamic graph neural networks (PT-DGNN), which uses dynamic attributed graph generation tasks to simultaneously learn the structure, semantics, and evolution features of the graph.
no code implementations • 15 Jul 2019 • Bin Liu, Yu Qi, Ke-Jia Chen
We propose an INstant TEmporal structure Learning (INTEL) algorithm to address this problem.
no code implementations • 18 Apr 2017 • Bin Liu, Ke-Jia Chen
A population based searching method, called estimation of distribution algorithm (EDA), is adopted to explore the model parameter space starting from a batch of random locations.