Improving item cold-start recommendation via model-agnostic conditional variational autoencoder

X Zhao, Y Ren, Y Du, S Zhang, N Wang - Proceedings of the 45th …, 2022 - dl.acm.org
Embedding & MLP has become a paradigm for modern large-scale recommendation
system. However, this paradigm suffers from the cold-start problem which will seriously …

Wasserstein-fisher-rao embedding: Logical query embeddings with local comparison and global transport

Z Wang, W Fei, H Yin, Y Song, GY Wong… - arxiv preprint arxiv …, 2023 - arxiv.org
Answering complex queries on knowledge graphs is important but particularly challenging
because of the data incompleteness. Query embedding methods address this issue by …

Importance sparsification for Sinkhorn algorithm

M Li, J Yu, T Li, C Meng - Journal of Machine Learning Research, 2023 - jmlr.org
Sinkhorn algorithm has been used pervasively to approximate the solution to optimal
transport (OT) and unbalanced optimal transport (UOT) problems. However, its practical …

Adaptive softassign via hadamard-equipped sinkhorn

B Shen, Q Niu, S Zhu - … of the IEEE/CVF Conference on …, 2024 - openaccess.thecvf.com
Softassign is a pivotal method in graph matching and other learning tasks. Many softassign-
based algorithms exhibit performance sensitivity to a parameter in the softassign. However …

Efficient approximation of Gromov-Wasserstein distance using importance sparsification

M Li, J Yu, H Xu, C Meng - Journal of Computational and Graphical …, 2023 - Taylor & Francis
As a valid metric of metric-measure spaces, Gromov-Wasserstein (GW) distance has shown
the potential for matching problems of structured data like point clouds and graphs …

Hilbert curve projection distance for distribution comparison

T Li, C Meng, H Xu, J Yu - IEEE Transactions on Pattern …, 2024 - ieeexplore.ieee.org
Distribution comparison plays a central role in many machine learning tasks like data
classification and generative modeling. In this study, we propose a novel metric, called …

Fast Sinkhorn II: Collinear triangular matrix and linear time accurate computation of optimal transport

Q Liao, Z Wang, J Chen, B Bai, S **, H Wu - Journal of Scientific …, 2024 - Springer
In our previous work (Liao et al. in Commun Math Sci, 2022), the complexity of Sinkhorn
iteration is reduced from O (N 2) to the optimal O (N) by leveraging the special structure of …

Approximation of the steady state for piecewise stable Ornstein-Uhlenbeck processes arising in queueing networks

X **, G Pang, Y Wang, L Xu - arxiv preprint arxiv:2405.18851, 2024 - arxiv.org
We shall use the Euler-Maruyama (EM) scheme with decreasing step size
$\Lambda=(\eta_n) _ {n\in\mathbb {N}} $ to approximate the steady state for piecewise …

Cogsimulator: A model for simulating user cognition & behavior with minimal data for tailored cognitive enhancement

W Bian, Y Zhou, Y Luo, M Mo, S Liu, Y Gong… - arxiv preprint arxiv …, 2024 - arxiv.org
The interplay between cognition and gaming, notably through educational games
enhancing cognitive skills, has garnered significant attention in recent years. This research …

Fast Gradient Computation for Gromov-Wasserstein Distance

W Zhang, Z Wang, J Fan, H Wu, Y Zhang - arxiv preprint arxiv:2404.08970, 2024 - arxiv.org
The Gromov-Wasserstein distance is a notable extension of optimal transport. In contrast to
the classic Wasserstein distance, it solves a quadratic assignment problem that minimizes …