1 code implementation • 18 Oct 2023 • Junjun Pan, Yixin Liu, Yizhen Zheng, Shirui Pan
Comprising two modules - a pre-processing module and an ego-neighbor matching module - PREM eliminates the necessity for message-passing propagation during training, and employs a simple contrastive loss, leading to considerable reductions in training time and memory usage.
no code implementations • 28 Jul 2022 • Junjun Pan, Michael K. Ng
To determine the source factor matrix in quaternion space, we propose a heuristic algorithm called quaternion successive projection algorithm (QSPA) inspired by the successive projection algorithm.
1 code implementation • 13 Jul 2022 • Junjun Pan, Siyuan Wang, Junxuan Bai, Ju Dai
The video and qualitative experimental results demonstrate that the complex motion sequences generated by our algorithm can achieve diverse and smooth motion transitions between keyframes, even for long-term synthesis.
no code implementations • 2 Sep 2021 • Junjun Pan, Michael K. Ng
It aims to find a low rank approximation for nonnegative data M by a product of two nonnegative matrices W and H. In general, NMF is NP-hard to solve while it can be solved efficiently under separability assumption, which requires the columns of factor matrix are equal to columns of the input matrix.
no code implementations • 28 Jul 2020 • Tai-Xiang Jiang, Michael K. Ng, Junjun Pan, Guangjing Song
The main aim of this paper is to develop a new algorithm for computing nonnegative low rank tensor approximation for nonnegative tensors that arise in many multi-dimensional imaging applications.
no code implementations • 21 Oct 2019 • Junjun Pan, Michael K. Ng, Ye Liu, Xiongjun Zhang, Hong Yan
In this paper, we study the nonnegative tensor data and propose an orthogonal nonnegative Tucker decomposition (ONTD).
no code implementations • 30 May 2019 • Junjun Pan, Nicolas Gillis
Given a data matrix $M$ and a factorization rank $r$, NMF looks for a nonnegative matrix $W$ with $r$ columns and a nonnegative matrix $H$ with $r$ rows such that $M \approx WH$.
no code implementations • 23 May 2019 • Ye Liu, Junjun Pan, Michael Ng
Deep neural networks have achieved a great success in solving many machine learning and computer vision problems.