Nan Ma
DiDi
10 Papers
2 Citations
Nan Ma is an academic researcher from DiDi. The author has contributed to research in topics: Computer science & Supervised learning. The author has an hindex of 2, co-authored 7 publications.
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Papers
Interpreting Trajectories from Multiple Views: A Hierarchical Self-Attention Network for Estimating the Time of Arrival
Zebin Chen,Xiaolin Xiao,Yue-Jiao Gong,Jun Fang,Nan Ma,Hua Chai,Zhiguang Cao +6 more
- 14 Aug 2022
TL;DR: A hierarchical self-attention network (HierETA) that accurately models the local traffic conditions and the underlying trajectory structure is designed and the superiority of HierETA over the state-of-the-arts is shown.
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Learning from Imbalanced and Incomplete Supervision with Its Application to Ride-Sharing Liability Judgment
Lan-Zhe Guo,Zhi Zhou,Jie-Jing Shao,Qi Zhang,Feng Kuang,Gao-Le Li,Liu Zhangxun,Guobin Wu,Nan Ma,Qun Li,Yu-Feng Li +10 more
- 14 Aug 2021
TL;DR: Li et al. as discussed by the authors proposed a label correlation network to explore the label relation knowledge with flexible aggregators, and then they completed the label on unlabeled instances in a semi-supervised fashion.
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Context-aware Route Recommendation with Weight Learning through Deep Neural Networks.
Huiwen Jia,Fang Jun,Tan Naiqiang,Xinyue Liu,Huo Zengwei,Nan Ma,Guobin Wu,Chai Hua,Xiaohu Qie,Bo Zhang,Yafeng Yin,Siqian Shen +11 more
- 01 Jul 2020
TL;DR: It is demonstrated that distinguishing request scenarios helps provide preferable context-aware route recommendations, and an approach via a combination of the weighted shortest path problem and deep learning is designed and implemented, and evaluated using real-world transportation data.
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IWE-Net: Instance Weight Network for Locating Negative Comments and its application to improve Traffic User Experience
Lan-Zhe Guo,Feng Kuang,Liu Zhangxun,Yu-Feng Li,Nan Ma,Xiaohu Qie +5 more
- 03 Apr 2020
TL;DR: An instance reweighting strategy is employed to cope with severe label noise in comment data, where the weights for harmful noisy instances are small and strong criteria like AUC rather than accuracy and the validation performance are optimized for the correction of biased data label.
Mobility Data-driven Complete Dispatch Framework for the Ride-hailing Platform
Jiaman Wu,Chenbei Lu,Chenye Wu,Yongli Qin,Qun Li,Nan Ma,Jun Fang +6 more
- 21 Sep 2021
TL;DR: In this paper, the authors focus on the complete dispatch for the ride-hailing platform and propose a network flow accelerated algorithm to obtain the dispatch policy when perfect information is available.
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