Search Results for author: Jintao Ke

Found 10 papers, 4 papers with code

Dynamic Adjustment of Matching Radii under the Broadcasting Mode: A Novel Multitask Learning Strategy and Temporal Modeling Approach

no code implementations9 Dec 2023 Taijie Chen, Zijian Shen, Siyuan Feng, Linchuan Yang, Jintao Ke

To simultaneously maximize multiple system performance metrics for matching radius determination, we devise a novel multi-task learning algorithm that enhances convergence speed of each task (corresponding to the optimization of one metric) and delivers more accurate overall predictions.

Multi-Task Learning

Quantifying traffic emission reductions and traffic congestion alleviation from high-capacity ride-sharing

no code implementations21 Aug 2023 Wang Chen, Jintao Ke, Xiqun Chen

The simulation platform integrates a traffic emission model and a speed-density traffic flow model to characterize the interactions between traffic congestion levels and emissions.

Scaling Laws of Dynamic High-Capacity Ride-Sharing

1 code implementation12 May 2023 Wang Chen, Jintao Ke, Linchuan Yang

Dynamic ride-sharing services, including ride-pooling offered by ride-hailing platforms and demand-responsive buses, have become an essential part of urban mobility systems.

Vocal Bursts Intensity Prediction

A multi-functional simulation platform for on-demand ride service operations

1 code implementation22 Mar 2023 Siyuan Feng, Taijie Chen, Yuhao Zhang, Jintao Ke, Zhengfei Zheng, Hai Yang

In addition, the existing simulators still face many challenges, ranging from their closeness to real environments of ride-sourcing systems, to the completeness of different tasks they can implement.

Joint predictions of multi-modal ride-hailing demands: a deep multi-task multigraph learning-based approach

no code implementations11 Nov 2020 Jintao Ke, Siyuan Feng, Zheng Zhu, Hai Yang, Jieping Ye

To address this issue, we propose a deep multi-task multi-graph learning approach, which combines two components: (1) multiple multi-graph convolutional (MGC) networks for predicting demands for different service modes, and (2) multi-task learning modules that enable knowledge sharing across multiple MGC networks.

Graph Learning Multi-Task Learning

Predicting origin-destination ride-sourcing demand with a spatio-temporal encoder-decoder residual multi-graph convolutional network

1 code implementation17 Oct 2019 Jintao Ke, Xiaoran Qin, Hai Yang, Zhengfei Zheng, Zheng Zhu, Jieping Ye

To overcome this challenge, we propose the Spatio-Temporal Encoder-Decoder Residual Multi-Graph Convolutional network (ST-ED-RMGC), a novel deep learning model for predicting ride-sourcing demand of various OD pairs.

Management

Deep Multi-View Spatial-Temporal Network for Taxi Demand Prediction

1 code implementation23 Feb 2018 Huaxiu Yao, Fei Wu, Jintao Ke, Xianfeng Tang, Yitian Jia, Siyu Lu, Pinghua Gong, Jieping Ye, Zhenhui Li

Traditional demand prediction methods mostly rely on time series forecasting techniques, which fail to model the complex non-linear spatial and temporal relations.

Image Classification Time Series Forecasting +1

PCA-Based Missing Information Imputation for Real-Time Crash Likelihood Prediction Under Imbalanced Data

no code implementations11 Feb 2018 Jintao Ke, Shuaichao Zhang, Hai Yang, Xiqun Chen

However, few research focuses on the missing data imputation in real-time crash likelihood prediction, although missing values are commonly observed due to breakdown of sensors or external interference.

Clustering Imputation

Short-Term Forecasting of Passenger Demand under On-Demand Ride Services: A Spatio-Temporal Deep Learning Approach

no code implementations20 Jun 2017 Jintao Ke, Hongyu Zheng, Hai Yang, Xiqun, Chen

The fusion of convolutional techniques and the LSTM network enables the proposed DL approach to better capture the spatio-temporal characteristics and correlations of explanatory variables.

feature selection Time Series Prediction

Ridesourcing Car Detection by Transfer Learning

no code implementations23 May 2017 Leye Wang, Xu Geng, Jintao Ke, Chen Peng, Xiaojuan Ma, Daqing Zhang, Qiang Yang

Finally, we use the resulting ensemble of RF and CNN to identify the ridesourcing cars in the candidate pool.

Transfer Learning

Cannot find the paper you are looking for? You can Submit a new open access paper.