1 code implementation • 5 Oct 2024 • Xiaodong Lu, Leilei Sun, Tongyu Zhu, Weifeng Lv
Temporal link prediction, aiming at predicting future interactions among entities based on historical interactions, is crucial for a series of real-world applications.
1 code implementation • 30 Jul 2024 • Ke Cheng, Linzhi Peng, Pengyang Wang, Junchen Ye, Leilei Sun, Bowen Du
Different from the existing research which utilizes fixed-length learning sequence to obtain the student states and regards KT as a static problem, this work is motivated by three dynamical characteristics: 1) The scales of students answering records are constantly growing; 2) The semantics of time intervals between the records vary; 3) The relationships between students, questions and concepts are evolving.
no code implementations • 30 Jul 2024 • Ke Cheng, Linzhi Peng, Junchen Ye, Leilei Sun, Bowen Du
Furthermore, CNES introduces a Temporal-Diverse Memory to generate long-term and short-term structure encoding for neighbors with different structural information.
no code implementations • 30 May 2024 • Shaohua Wang, Xing Xie, Yong Li, Danhuai Guo, Zhi Cai, Yu Liu, Yang Yue, Xiao Pan, Feng Lu, Huayi Wu, Zhipeng Gui, Zhiming Ding, Bolong Zheng, Fuzheng Zhang, Jingyuan Wang, Zhengchao Chen, Hao Lu, Jiayi Li, Peng Yue, Wenhao Yu, Yao Yao, Leilei Sun, Yong Zhang, Longbiao Chen, Xiaoping Du, Xiang Li, Xueying Zhang, Kun Qin, Zhaoya Gong, Weihua Dong, Xiaofeng Meng
This report focuses on spatial data intelligent large models, delving into the principles, methods, and cutting-edge applications of these models.
1 code implementation • 17 Nov 2023 • Ruixing Zhang, Liangzhe Han, Leilei Sun, Yunqi Liu, Jibin Wang, Weifeng Lv
To tap into the rich information within population movement, based on the perspective that Regions Are Who walk them, we propose a large spatiotemporal model based on trajectories (RAW).
1 code implementation • 19 Oct 2023 • Tao Zou, Le Yu, Yifei HUANG, Leilei Sun, Bowen Du
In many real-world scenarios (e. g., academic networks, social platforms), different types of entities are not only associated with texts but also connected by various relationships, which can be abstracted as Text-Attributed Heterogeneous Graphs (TAHGs).
1 code implementation • 8 Sep 2023 • Wangyang Ying, Dongjie Wang, Kunpeng Liu, Leilei Sun, Yanjie Fu
Feature generation aims to generate new and meaningful features to create a discriminative representation space. A generated feature is meaningful when the generated feature is from a feature pair with inherent feature interaction.
1 code implementation • 10 Aug 2023 • Tao Zou, Le Yu, Junchen Ye, Leilei Sun, Bowen Du, Deqing Wang
Finally, we combine the contextual information of patent texts that contains the semantics of IPC codes, and assignees' sequential preferences to make predictions.
1 code implementation • 4 Aug 2023 • Tao Zou, Le Yu, Leilei Sun, Bowen Du, Deqing Wang, Fuzhen Zhuang
Finally, the patent application trend is predicted by aggregating the representations of the target company and classification codes from static, dynamic, and hierarchical perspectives.
2 code implementations • 21 May 2023 • Han Huang, Leilei Sun, Bowen Du, Weifeng Lv
To capture the correlation between molecular graphs and geometries in the diffusion process, we develop a Diffusion Graph Transformer to parameterize the data prediction model that recovers the original data from noisy data.
2 code implementations • NeurIPS 2023 • Le Yu, Leilei Sun, Bowen Du, Weifeng Lv
We propose DyGFormer, a new Transformer-based architecture for dynamic graph learning.
1 code implementation • 20 Feb 2023 • Mingzhe Liu, Han Huang, Hao Feng, Leilei Sun, Bowen Du, Yanjie Fu
Our proposed framework provides a conditional feature extraction module first to extract the coarse yet effective spatiotemporal dependencies from conditional information as the global context prior.
1 code implementation • 1 Jan 2023 • Han Huang, Leilei Sun, Bowen Du, Weifeng Lv
To accomplish these goals, we propose a novel Conditional Diffusion model based on discrete Graph Structures (CDGS) for molecular graph generation.
1 code implementation • 4 Dec 2022 • Han Huang, Leilei Sun, Bowen Du, Yanjie Fu, Weifeng Lv
Graph generative models have broad applications in biology, chemistry and social science.
no code implementations • 1 Dec 2022 • Dongjie Wang, Lingfei Wu, Denghui Zhang, Jingbo Zhou, Leilei Sun, Yanjie Fu
The third stage is to leverage multi-attentions to model the zone-zone peer dependencies of the functionality projections to generate grid-level land-use configurations.
no code implementations • 26 Sep 2022 • Dongjie Wang, Kunpeng Liu, Yanyong Huang, Leilei Sun, Bowen Du, Yanjie Fu
While automated urban planners have been examined, they are constrained because of the following: 1) neglecting human requirements in urban planning; 2) omitting spatial hierarchies in urban planning, and 3) lacking numerous urban plan data samples.
1 code implementation • 30 Jun 2022 • Liangzhe Han, Xiaojian Ma, Leilei Sun, Bowen Du, Yanjie Fu, Weifeng Lv, Hui Xiong
Traffic demand forecasting by deep neural networks has attracted widespread interest in both academia and industry society.
1 code implementation • 28 Jun 2022 • Junchen Ye, Zihan Liu, Bowen Du, Leilei Sun, Weimiao Li, Yanjie Fu, Hui Xiong
To equip the graph neural network with a flexible and practical graph structure, in this paper, we investigate how to model the evolutionary and multi-scale interactions of time series.
Graph Neural Network Multivariate Time Series Forecasting +2
1 code implementation • 31 May 2022 • Le Yu, Leilei Sun, Bowen Du, Tongyu Zhu, Weifeng Lv
In recent years, several methods have been designed to additionally utilize the labels at the input.
Ranked #19 on Node Property Prediction on ogbn-mag
1 code implementation • 29 May 2022 • Ruixing Zhang, Liangzhe Han, Boyi Liu, Jiayuan Zeng, Leilei Sun
Last, an objective function is designed to derive the future OD demands according to the most recent node representations, and also to tackle the data sparsity problem in OD prediction.
1 code implementation • 5 May 2022 • Ting Jiang, Deqing Wang, Leilei Sun, Zhongzhi Chen, Fuzhen Zhuang, Qinghong Yang
Existing methods encode label hierarchy in a global view, where label hierarchy is treated as the static hierarchical structure containing all labels.
Multi Label Text Classification Multi-Label Text Classification +1
1 code implementation • 12 Apr 2022 • Le Yu, Zihang Liu, Leilei Sun, Bowen Du, Chuanren Liu, Weifeng Lv
Previous studies for temporal sets prediction mainly focus on the modelling of elements and implicitly represent each user's preference based on his/her interacted elements.
no code implementations • 12 Oct 2021 • Dongjie Wang, Kunpeng Liu, Pauline Johnson, Leilei Sun, Bowen Du, Yanjie Fu
Existing studies usually ignore the need of personalized human guidance in planning, and spatial hierarchical structure in planning generation.
no code implementations • 27 Sep 2021 • Xuyan Tan, Yuhang Wang, Bowen Du, Junchen Ye, Weizhong Chen, Leilei Sun, Liping Li
Mechanical analysis for the full face of tunnel structure is crucial to maintain stability, which is a challenge in classical analytical solutions and data analysis.
1 code implementation • 24 May 2021 • Le Yu, Leilei Sun, Bowen Du, Chuanren Liu, Weifeng Lv, Hui Xiong
Moreover, a semantic fusing module is presented to aggregate relation-aware node representations into a compact representation with the learned relation representations.
Ranked #22 on Node Property Prediction on ogbn-mag
1 code implementation • 9 Jan 2021 • Ting Jiang, Deqing Wang, Leilei Sun, Huayi Yang, Zhengyang Zhao, Fuzhen Zhuang
In LightXML, we use generative cooperative networks to recall and rank labels, in which label recalling part generates negative and positive labels, and label ranking part distinguishes positive labels from these labels.
1 code implementation • 29 Dec 2020 • Le Yu, Leilei Sun, Bowen Du, Chuanren Liu, Weifeng Lv, Hui Xiong
Representation learning on heterogeneous graphs aims to obtain low-dimensional node representations that could preserve both node attributes and relation information.
Ranked #24 on Node Property Prediction on ogbn-mag
1 code implementation • 15 Dec 2020 • Junchen Ye, Leilei Sun, Bowen Du, Yanjie Fu, Hui Xiong
Graph Convolutional Network (GCN) has been widely applied in transportation demand prediction due to its excellent ability to capture non-Euclidean spatial dependence among station-level or regional transportation demands.
no code implementations • 26 Aug 2020 • Dongjie Wang, Pengyang Wang, Jingbo Zhou, Leilei Sun, Bowen Du, Yanjie Fu
To this end, we propose a structured anomaly detection framework to defend WTNs by modeling the spatio-temporal characteristics of cyber attacks in WTNs.
2 code implementations • 20 Jun 2020 • Le Yu, Leilei Sun, Bowen Du, Chuanren Liu, Hui Xiong, Weifeng Lv
Given a sequence of sets, where each set contains an arbitrary number of elements, the problem of temporal sets prediction aims to predict the elements in the subsequent set.