no code implementations • 17 Aug 2024 • Mingxuan Xie, Tao Zou, Junchen Ye, Bowen Du, Runhe Huang
We capture the temporal patterns from individual sequences and correlate the temporal behavior between the two sequences.
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.
1 code implementation • 24 May 2024 • Tao Zou, Yuhao Mao, Junchen Ye, Bowen Du
To fill this gap, this paper presents RepeatMixer, which considers evolving patterns of first and high-order repeat behavior in the neighbor sampling strategy and temporal information learning.
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 • 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.
1 code implementation • 11 Nov 2022 • Man Luo, Bowen Du, Wenzhe Zhang, Tianyou Song, Kun Li, HongMing Zhu, Mark Birkin, Hongkai Wen
This is particularly challenging in the context of expanding systems, because i) the range of the EVs is limited while charging time is typically long, which constrain the viable rebalancing operations; and ii) the EV stations in the system are dynamically changing, i. e., the legitimate targets for rebalancing operations can vary over time.
Deep Reinforcement Learning Multi-agent Reinforcement Learning
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 • 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 • 3 Nov 2021 • Man Luo, Bowen Du, Konstantin Klemmer, HongMing Zhu, Hongkai Wen
Shared e-mobility services have been widely tested and piloted in cities across the globe, and already woven into the fabric of modern urban planning.
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 • 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.
1 code implementation • 10 Dec 2019 • Chris Xiaoxuan Lu, Bowen Du, Hongkai Wen, Sen Wang, Andrew Markham, Ivan Martinovic, Yiran Shen, Niki Trigoni
Demand for smartwatches has taken off in recent years with new models which can run independently from smartphones and provide more useful features, becoming first-class mobile platforms.
2 code implementations • 2 Sep 2019 • Lingbo Liu, Jiajie Zhen, Guanbin Li, Geng Zhan, Zhaocheng He, Bowen Du, Liang Lin
Specifically, the first ConvLSTM unit takes normal traffic flow features as input and generates a hidden state at each time-step, which is further fed into the connected convolutional layer for spatial attention map inference.
1 code implementation • 14 Aug 2019 • Chris Xiaoxuan Lu, Xuan Kan, Bowen Du, Changhao Chen, Hongkai Wen, Andrew Markham, Niki Trigoni, John Stankovic
Inspired by the fact that most people carry smart wireless devices with them, e. g. smartphones, we propose to use this wireless identifier as a supervisory label.
no code implementations • 10 Mar 2019 • Man Luo, Hongkai Wen, Yi Luo, Bowen Du, Konstantin Klemmer, Hong-Ming Zhu
Electric Vehicle (EV) sharing systems have recently experienced unprecedented growth across the globe.
no code implementations • 1 Sep 2018 • Lingbo Liu, Ruimao Zhang, Jiefeng Peng, Guanbin Li, Bowen Du, Liang Lin
Traffic flow prediction is crucial for urban traffic management and public safety.
no code implementations • 15 Jun 2017 • Chuanqi Tan, Furu Wei, Nan Yang, Bowen Du, Weifeng Lv, Ming Zhou
We build the answer extraction model with state-of-the-art neural networks for single passage reading comprehension, and propose an additional task of passage ranking to help answer extraction in multiple passages.