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Jiakang Liu

dblp:26/5482 · DBLP profile ↗
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2ranked-venue papers
0as first author
1since 2021 · last 2022
0009-0002-7565-2700ORCID · reported

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 since 2021Applied, interdisciplinary, general and emerging computing · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer networks
1 paper
Cellular and mobile networks · 100%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Cellular and mobile networks
cell range expansion
0.212015
A QoE-based cell range expansion scheme in heterogeneous cellular networks · Sci. China Inf. Sci. 2015
Cellular and mobile networks
radio access networks
0.212015
A QoE-based cell range expansion scheme in heterogeneous cellular networks · Sci. China Inf. Sci. 2015
Cellular and mobile networks
heterogeneous networks
0.112015
A QoE-based cell range expansion scheme in heterogeneous cellular networks · Sci. China Inf. Sci. 2015

Methods — techniques the papers use, named apart from their topics

quality of experience modeling · 0.2
YearPublicationVenuePosition
2022 Gated Dual Hypergraph Convolutional Networks for Recommendation with Self-supervised Learning
abstract
Recommender systems have become a crucial intelligent tool, which provides users with personalized services. Graph learning-based recommendation methods treat user-item interactions and the item transitions as pairwise relations but ignore the complex, higher-order interaction information between nodes. Moreover, since most users often interact with few or even no items, graph learning-based recommendation methods suffer from the data sparsity problem, as well as the unbalanced distribution of edges and nodes. To tackle these issues, we propose a Dual Hypergraph-based Self-supervised Learning recommendation model, named DHSL-GM. Specifically, we derive two dual hypergraphs from the user-item bipartite graph, which models the complex high-order user-item interactions by using hypergraph convolution with spectral hypergraph convolution operator. Meanwhile, we design a gated network-based message passing mechanism to dynamically guide message propagation, addressing the problem of the unbalanced distribution of edges and nodes. In addition, to alleviate the data sparsity problem, we design another dual hypergraph convolutional network based on a node discard strategy, which innovatively integrates self-supervised learning into the training of the hypergraph convolutional network. Experimental results on several real datasets demonstrate the superiority and effectiveness of the proposed model.
Rong Gao 0001, Jiakang Liu, Yonghong Yu, Donghua Liu, Xiongkai Shao, Zhiwei Ye
IJCNN2
2015 A QoE-based cell range expansion scheme in heterogeneous cellular networks
Tingting Yuan 0001, Zesong Fei, Na Li 0001, Niwei Wang, Chengwen Xing, Jiakang Liu
Sci. China Inf. Sci.6