21 citations · 56 across the 7 of their papers we have counts for
7 papers
Structural Balance and Random Walks on Complex Networks with Complex Weights
Yu Tian, Renaud Lambiotte
Complex numbers define the relationship between entities in many situations. A canonical example would be the off-diagonal terms in a Hamiltonian matrix in quantum physics. Recent…
Boosting long-term forecasting performance for continuous-time dynamic graph networks via data augmentation
Yuxing Tian, Mingjie Zhu, Jiachi Luo +1
This study focuses on long-term forecasting (LTF) on continuous-time dynamic graph networks (CTDGNs), which is important for real-world modeling. Existing CTDGNs are effective for…
Spreading and Structural Balance on Signed Networks
Yu Tian, Renaud Lambiotte
Two competing types of interactions often play an important part in shaping system behavior, such as activatory or inhibitory functions in biological systems. Hence, signed network…
Motif-aware temporal GCN for fraud detection in signed cryptocurrency trust networks
Song Li, Jiandong Zhou, Chong MO +3
Graph convolutional networks (GCNs) is a class of artificial neural networks for processing data that can be represented as graphs. Since financial transactions can naturally be co…
Unifying information propagation models on networks and influence maximization
Yu Tian, Renaud Lambiotte
Information propagation on networks is a central theme in social, behavioral, and economic sciences, with important theoretical and practical implications, such as the influence ma…
Clustered Federated Learning via Generalized Total Variation Minimization
Yasmin SarcheshmehPour, Yu Tian, Linli Zhang +1
We study optimization methods to train local (or personalized) models for decentralized collections of local datasets with an intrinsic network structure. This network structure ar…
Extracting Complements and Substitutes from Sales Data: A Network Perspective
Yu Tian, Sebastian Lautz, Alisdiar O. G. Wallis +1
The complementarity and substitutability between products are essential concepts in retail and marketing. Qualitatively, two products are said to be substitutable if a customer can…