activity
20192023
most citedQuaternion Knowledge Graph Embeddings

281 citations · 455 across the 11 of their papers we have counts for

collaborators

12 papers

q-bio.BM2023★ 9 cited

Learning Subpocket Prototypes for Generalizable Structure-based Drug Design

Zaixi Zhang, Qi Liu

Generating molecules with high binding affinities to target proteins (a.k.a. structure-based drug design) is a fundamental and challenging task in drug discovery. Recently, deep ge…

q-bio.BM2023

An Equivariant Generative Framework for Molecular Graph-Structure Co-Design

Zaixi Zhang, Qi Liu, Chee-Kong Lee +2

Designing molecules with desirable physiochemical properties and functionalities is a long-standing challenge in chemistry, material science, and drug discovery. Recently, machine…

cs.LG2022★ 30 cited

Hierarchical Graph Transformer with Adaptive Node Sampling

Zaixi Zhang, Qi Liu, Qingyong Hu +1

The Transformer architecture has achieved remarkable success in a number of domains including natural language processing and computer vision. However, when it comes to graph-struc…

cs.LG2022

Model Inversion Attacks against Graph Neural Networks

Zaixi Zhang, Qi Liu, Zhenya Huang +3

Many data mining tasks rely on graphs to model relational structures among individuals (nodes). Since relational data are often sensitive, there is an urgent need to evaluate the p…

cs.LG2022★ 7 cited

Evaluating Self-Supervised Learning for Molecular Graph Embeddings

Hanchen Wang, Jean Kaddour, Shengchao Liu +3

Graph Self-Supervised Learning (GSSL) provides a robust pathway for acquiring embeddings without expert labelling, a capability that carries profound implications for molecular gra…

cs.IR2022★ 2 cited

Deep Unified Representation for Heterogeneous Recommendation

Chengqiang Lu, Mingyang Yin, Shuheng Shen +3

Recommendation system has been a widely studied task both in academia and industry. Previous works mainly focus on homogeneous recommendation and little progress has been made for…

physics.chem-ph2021★ 4 cited

Graph Self-Supervised Learning for Optoelectronic Properties of Organic Semiconductors

Zaixi Zhang, Qi Liu, Shengyu Zhang +3

The search for new high-performance organic semiconducting molecules is challenging due to the vastness of the chemical space, machine learning methods, particularly deep learning…

cs.LG2021

ProtGNN: Towards Self-Explaining Graph Neural Networks

Zaixi Zhang, Qi Liu, Hao Wang +2

Despite the recent progress in Graph Neural Networks (GNNs), it remains challenging to explain the predictions made by GNNs. Existing explanation methods mainly focus on post-hoc e…

q-bio.QM2021★ 44 cited

Motif-based Graph Self-Supervised Learning for Molecular Property Prediction

Zaixi Zhang, Qi Liu, Hao Wang +2

Predicting molecular properties with data-driven methods has drawn much attention in recent years. Particularly, Graph Neural Networks (GNNs) have demonstrated remarkable success i…

physics.chem-ph2019

Deep Learning for Optoelectronic Properties of Organic Semiconductors

Chengqiang Lu, Qi Liu, Qiming Sun +4

Atomistic modeling of energetic disorder in organic semiconductors (OSCs) and its effects on the optoelectronic properties of OSCs requires a large number of excited-state electron…

cs.LG2019★ 78 cited

Hyperbolic Graph Neural Networks

Qi Liu, Maximilian Nickel, Douwe Kiela

Learning from graph-structured data is an important task in machine learning and artificial intelligence, for which Graph Neural Networks (GNNs) have shown great promise. Motivated…

cs.LG2019★ 281 cited

Quaternion Knowledge Graph Embeddings

Shuai Zhang, Yi Tay, Lina Yao +1

In this work, we move beyond the traditional complex-valued representations, introducing more expressive hypercomplex representations to model entities and relations for knowledge…