I am a second year Ph.D. student at Beihang SCSE. I am very fortunate to be advised by Prof. Leilei Sun.

我是来自北航计算机学院的一名博士生，我很荣幸能够被孙磊磊老师指导。

My research interests lie in world model, generative model, and large Spatiotemporal models. Since I was a child, I have enjoyed exploring and wandering endlessly in both games and the real world. Even when playing shooting games, I just like to find a car to drive around the map. I hope that through the efforts of academia and myself, more people can wander freely in infinitely generated worlds.

我的研究兴趣点在于 世界模型, 生成式模型 以及时空大模型. 我从小就喜欢在游戏和现实世界里无限探索和徜徉，就算玩枪战类游戏，我也只是喜欢找个车在地图里逛逛。我希望通过学术界和我的努力，能让更多的人在无限生成的世界里徜徉。

Unfortunately, my research career is not peace. I, as the first author, after one paper being luckily accepted(IJCAI2022), have been rejected six times in a row(KDD2023, AAAI2023, KDD2024, AAAI2024, NeurIPS2025*2). After another one paper being accepted(KDD2025 Aug), another three were rejected(AAAI2025, ICML2025, KDD2025 Feb, AAAI2026, KDD2026 Aug). This may be related to my previous lack of focus on a research direction. I hope that both myself and you who see this homepage will be more determined and lucky.

不幸的是，我的研究生涯不是那么顺利。我幸运了中稿一次后(IJCAI2022)，作为第一作者的论文已经被连续拒稿6次了(KDD2023, AAAI2023, KDD2024, AAAI2024, NeurIPS2025*2)，又幸运了中稿一次后(KDD2025 Aug)，又有五篇被拒(AAAI2025, ICML2025, KDD2025 Feb, AAAI2026, KDD2026 Aug)。这可能与我此前没有专注于一个研究方向有关。 希望我和看到这个主页的你都会更坚定，更幸运。

Publications(一些微小的工作)

Think over Trajectories: Leveraging Video Generation to Reconstruct GPS Trajectories from Cellular Signaling
Ruixing Zhang, Hanzhang Jiang, Leilei Sun, Liangzhe Han, Jibin Wang, Weifeng Lv
Arxiv 2026
[Arxiv]

The Sonar Moment: Benchmarking Audio-Language Models in Audio Geo-Localization
Ruixing Zhang, Zihan Liu , Leilei Sun , Tongyu Zhu , Weifeng Lv
Arxiv 2026
[Arxiv]

Eyes Will Shut: A Vision-Based Next GPS Location Prediction Model by Reinforcement Learning from Visual Map Feed Back
Ruixing Zhang, Yang Zhang, Tongyu Zhu, Leilei Sun, Weifeng Lv
Arxiv 2025
[Arxiv]

Urban In-Context Learning: Bridging Pretraining and Inference through Masked Diffusion for Urban Profiling
Ruixing Zhang, Bo Wang, Tongyu Zhu, Leilei Sun, Weifeng Lv
Arxiv 2025
[Arxiv]

Large-scale Human Mobility Data Regeneration for Open Urban Research
Ruixing Zhang, Yunqi Liu, Liangzhe Han, Leilei Sun, Charles Liu, Jibin Wang, Weifeng Lv
KDD 2025

Regions are Who Walk Them: a Large Pre-trained Spatiotemporal Model Based on Human Mobility for Ubiquitous Urban Sensing
Ruixing Zhang, Liangzhe Han, Leilei Sun, Yunqi Liu, Jibin Wang, Weifeng Lv
Arxiv 2024
[Arxiv] [GitHub]

Generic and dynamic graph representation learning for crowd flow modeling
Liangzhe Han, Ruixing Zhang, Leilei Sun, Bowen Du, Yanjie Fu, Tongyu Zhu
AAAI 2023
[PDF] [GitHub]

Dynamic graph learning based on hierarchical memory for origin-destination demand prediction
Ruixing Zhang, Liangzhe Han, Boyi Liu, Jiayuan Zeng, Leilei Sun
IJCAI 2022
[Arxiv] [GitHub]

Deep heterogeneous network for temporal set prediction
Nannan Shi, Le Yu, Leilei Sun, Lihua Wang, Chunming Lin, Ruixing Zhang
KBS 2021
[Link]

Marathons(参加过的马拉松)

我很喜欢跑步，因为跑步会分泌多巴胺，会让我感觉到快乐。同时，我也参与了西安怪兽跑团，跑团教会我一个人跑步心情是一种颜色，一群人跑步心情汇聚成一道彩虹。在跑团中，不断的认识新的朋友，不断的帮助新人开始他们的第一次跑步，也是一件很快乐的事情。幸运的是，虽然我的学术生涯很不幸，而且我对跑步也懈怠了很久，但是从2025年的夏天开始，我重新开始坚持锻炼，我终于在2025年的西安重新开始跑马拉松并获得了PB，接着我跑了2026年的无锡马拉松，希望我们能常在跑道上相见。

I really enjoy running because it releases dopamine, which makes me feel happy. At the same time, I’m also part of the Xi’an Monster Crew Running, where I learned that running alone gives you one color of emotion, while running with a group brings together a whole rainbow of feelings. In the crew, I continuously meet new friends and help newcomers start their first run, which is also something that brings me great joy. Fortunately, although my academic journey has been full of setbacks and I neglected running for a long time, I started training again in the Summer of 2025. I finally returned to marathon running in Xi’an in 2025 and achieved a new personal best.Then I ran the Wuxi Marathon in 2026, and I hope we’ll often meet each other on the track.

2026 无锡马拉松

42.195km

2025 西安马拉松

42.195km

2025 北京半程马拉松

21.0975km

2024 神奇泰国曼谷马拉松

21.0975km

2023 北京半程马拉松

21.0975km

2019 西安马拉松

42.159km

2017 杨凌马拉松

21.0975km

2016 李宁10k

10k

2015 城墙马拉松

13.7km(一圈城墙的距离)

2015 杨凌马拉松

42.195km

人生首马

2015 欢乐跑中国

10km

兔子

2015 李宁10k

10k

2014 城墙马拉松

21.0975km

2014 李宁10k

10k