Search Results for author: Wanquan Liu

Found 11 papers, 1 papers with code

A Novel Exploration of Diffusion Process based on Multi-types Galton-Watson Forests

no code implementations17 Mar 2022 Yanjiao Zhu, Qilin Li, Wanquan Liu, Chuancun Yin, Zhenlong Gao

With the two-phase setting of the MGWF, one can interpret the diffusion process and the Google PageRank system explicitly.

Concept and Attribute Reduction Based on Rectangle Theory of Formal Concept

no code implementations29 Oct 2021 Jianqin Zhou, Sichun Yang, Xifeng Wang, Wanquan Liu

Second, we derive the bounds for both the maximum number of relative necessary concepts and the maximum number of unnecessary concepts and it is a difficult problem as either in concept reduction preserving binary relations or attribute reduction of decision formal contexts, the computation of formal contexts from formal concepts is a challenging problem.

Attribute

Granule Description based on Compound Concepts

no code implementations29 Oct 2021 Jianqin Zhou, Sichun Yang, Xifeng Wang, Wanquan Liu

Concise granule descriptions for definable granules and approaching descriptions for indefinable granules are challenging and important issues in granular computing.

Object

A New Algorithm based on Extent Bit-array for Computing Formal Concepts

no code implementations29 Oct 2021 Jianqin Zhou, Sichun Yang, Xifeng Wang, Wanquan Liu

The emergence of Formal Concept Analysis (FCA) as a data analysis technique has increased the need for developing algorithms which can compute formal concepts quickly.

Sleep Staging Based on Multi Scale Dual Attention Network

no code implementations18 Jul 2021 Huafeng Wang, Chonggang Lu, Qi Zhang, Zhimin Hu, Xiaodong Yuan, Pingshu Zhang, Wanquan Liu

In the literature, a large number of sleep staging methods based on single-channel EEG have been proposed with promising results and achieve the preliminary automation of sleep staging.

EEG Sleep Staging

iffDetector: Inference-aware Feature Filtering for Object Detection

1 code implementation23 Jun 2020 Mingyuan Mao, Yuxin Tian, Baochang Zhang, Qixiang Ye, Wanquan Liu, Guodong Guo, David Doermann

In this paper, we propose a new feature optimization approach to enhance features and suppress background noise in both the training and inference stages.

Object object-detection +1

Regularizing Semi-supervised Graph Convolutional Networks with a Manifold Smoothness Loss

no code implementations11 Feb 2020 Qilin Li, Wanquan Liu, Ling Li

Existing graph convolutional networks focus on the neighborhood aggregation scheme.

A Novel Euler's Elastica based Segmentation Approach for Noisy Images via using the Progressive Hedging Algorithm

no code implementations20 Feb 2019 Lu Tan, Ling Li, Wanquan Liu, Jie Sun, Min Zhang

Euler's Elastica based unsupervised segmentation models have strong capability of completing the missing boundaries for existing objects in a clean image, but they are not working well for noisy images.

Segmentation

Semi-supervised Learning on Graph with an Alternating Diffusion Process

no code implementations16 Feb 2019 Qilin Li, Senjian An, Ling Li, Wanquan Liu

Graph-based semi-supervised learning usually involves two separate stages, constructing an affinity graph and then propagating labels for transductive inference on the graph.

graph construction

Sparse Subspace Clustering via Diffusion Process

no code implementations5 Aug 2016 Qilin Li, Ling Li, Wanquan Liu

Subspace clustering refers to the problem of clustering high-dimensional data that lie in a union of low-dimensional subspaces.

Clustering

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