Search Results for author: Qingyi Wang

Found 6 papers, 1 papers with code

Fairness-enhancing deep learning for ride-hailing demand prediction

no code implementations10 Mar 2023 Yunhan Zheng, Qingyi Wang, Dingyi Zhuang, Shenhao Wang, Jinhua Zhao

When coupled with the bias mitigation regularization method, the de-biasing SA-Net effectively bridges the mean percentage prediction error gap between the disadvantaged and privileged groups, and also protects the disadvantaged regions against systematic underestimation of TNC demand.

Fairness

Uncertainty Quantification of Spatiotemporal Travel Demand with Probabilistic Graph Neural Networks

1 code implementation7 Mar 2023 Qingyi Wang, Shenhao Wang, Dingyi Zhuang, Haris Koutsopoulos, Jinhua Zhao

This Prob-GNN framework is substantiated by deterministic and probabilistic assumptions, and empirically applied to the task of predicting the transit and ridesharing demand in Chicago.

Uncertainty Quantification

Estimating air quality co-benefits of energy transition using machine learning

no code implementations29 May 2021 Da Zhang, Qingyi Wang, Shaojie Song, Simiao Chen, MingWei Li, Lu Shen, Siqi Zheng, Bofeng Cai, Shenhao Wang

Applications of the framework with Chinese data reveal highly heterogeneous health benefits of reducing fossil fuel use in different sectors and regions in China with a mean of \$34/tCO2 and a standard deviation of \$84/tCO2.

BIG-bench Machine Learning

Multitask Learning Deep Neural Networks to Combine Revealed and Stated Preference Data

no code implementations2 Jan 2019 Shenhao Wang, Qingyi Wang, Jinhua Zhao

This study presents a framework of multitask learning deep neural networks (MTLDNNs) for this question, and demonstrates that MTLDNNs are more generic than the traditional nested logit (NL) method, due to its capacity of automatic feature learning and soft constraints.

Autonomous Vehicles

Deep Neural Networks for Choice Analysis: Extracting Complete Economic Information for Interpretation

no code implementations11 Dec 2018 Shenhao Wang, Qingyi Wang, Jinhua Zhao

To demonstrate the strength and challenges of DNNs, we estimated the DNNs using a stated preference survey, extracted the full list of economic information from the DNNs, and compared them with those from the DCMs.

Discrete Choice Models

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