Longgang Xiang

33 papers A 1B 2Journal 29Unranked 1
YearRankTypeTitle / Venue / Authors
2025 J jnl
AutoGEEval: A Multimodal and Automated Evaluation Framework for Geospatial Code Generation on GEE with Large Language Models.
ISPRS Int. J. Geo Inf.
Huayi Wu, Zhangxiao Shen, Shuyang Hou, Jianyuan Liang, Haoyue Jiao, Yaxian Qing, Xiaopu Zhang, Xu Li, Zhipeng Gui, Xuefeng Guan, Longgang Xiang
2025 J jnl
AutoGEEval: A Multimodal and Automated Framework for Geospatial Code Generation on GEE with Large Language Models.
CoRR
Shuyang Hou, Zhangxiao Shen, Huayi Wu, Jianyuan Liang, Haoyue Jiao, Yaxian Qing, Xiaopu Zhang, Xu Li, Zhipeng Gui, Xuefeng Guan, Longgang Xiang
2025 J jnl
Automatic Extraction of Road Interchange Networks from Crowdsourced Trajectory Data: A Forward and Reverse Tracking Approach.
ISPRS Int. J. Geo Inf.
Fengwei Jiao, Longgang Xiang, Yuanyuan Deng
2025 J jnl
Automatic Extraction of Roads From Multisource Geospatial Data Using Fusion Attention Network and Regularization Algorithm.
IEEE Trans. Geosci. Remote. Sens.
Zejiao Wang, Longgang Xiang, Zhongyu Liu, Zhengxiang Wang
2025 J jnl
Design and application of a semantic-driven geospatial modeling knowledge graph based on large language models.
Geo spatial Inf. Sci.
Jianyuan Liang, Shuyang Hou, Anqi Zhao, Qingyang Xu, Longgang Xiang, Rui Li, Huayi Wu
2025 J jnl
GeoGraphRAG: A graph-based retrieval-augmented generation approach for empowering large language models in automated geospatial modeling.
Int. J. Appl. Earth Obs. Geoinformation
Jianyuan Liang, Shuyang Hou, Haoyue Jiao, Yaxian Qing, Anqi Zhao, Zhangxiao Shen, Longgang Xiang, Huayi Wu
2025 A conf
Latent Graph Structure Learning for Large-Scale Traffic Forecasting.
CIKM
Meng Wang, Longgang Xiang, Chenhao Wu, Zejiao Wang, Xin Chen, Shaozu Xie, Ying Luo
2025 J jnl
Mutation Interval-Based Segment-Level SRDet: Side Road Detection Based on Crowdsourced Trajectory Data.
ISPRS Int. J. Geo Inf.
Ying Luo, Fengwei Jiao, Longgang Xiang, Xin Chen, Meng Wang
2024 J jnl
Differences in Urban Development in China from the Perspective of Point of Interest Spatial Co-Occurrence Patterns.
ISPRS Int. J. Geo Inf.
Guangsheng Dong, Rui Li, Fa Li, Zhaohui Liu, Huayi Wu, Longgang Xiang, Wensen Yu, Jie Jiang, Hongping Zhang, Fangning Li
2024 J jnl
Dynamic heatmap pyramid computation for massive high-parallel spatial streaming in urban environments.
Int. J. Digit. Earth
Qi Xu, Longgang Xiang, Huayi Wu, Chuang Tao, Haocheng Wang, Liebing Yu, Quan Liu, Xumei Wang
2024 J jnl
Indoor mobility data encoding with TSTM-in: A topological-semantic trajectory model.
Comput. Environ. Urban Syst.
Jianxin Qin, Lu Wang, Tao Wu, Ye Li, Longgang Xiang, Yuanyuan Zhu
2024 J jnl
Learning Universal Trajectory Representation via a Siamese Geography-Aware Transformer.
ISPRS Int. J. Geo Inf.
Chenhao Wu, Longgang Xiang, Libiao Chen, Qingcen Zhong, Xiongwei Wu
2024 J jnl
RTGDC: a real-time ingestion and processing approach in geospatial data cube for digital twin of earth.
Int. J. Digit. Earth
Ruixiang Liu, Peng Yue, Boyi Shangguan, Jianya Gong, Longgang Xiang, Binbin Lu
2023 J jnl
Detecting Turning Relationships and Time Restrictions of OSM Road Intersections from Crowdsourced Trajectories.
ISPRS Int. J. Geo Inf.
Xin Chen, Longgang Xiang, Fengwei Jiao, Huayi Wu
2023 J jnl
Urban Road Lane Number Mining from Low-Frequency Floating Car Data Based on Deep Learning.
ISPRS Int. J. Geo Inf.
Xiaolong Li, Yun Zhang, Longgang Xiang, Tao Wu
2022 J jnl
A topological model of trajectories with road network space.
Trans. GIS
Tao Wu, Yuanyuan Zhu, Longgang Xiang, Jianxin Qin, Yiliang Wan
2022 J jnl
Incremental Road Network Update Method with Trajectory Data and UAV Remote Sensing Imagery.
ISPRS Int. J. Geo Inf.
Jianxin Qin, Wenjie Yang, Tao Wu, Bin He, Longgang Xiang
2022 J jnl
Spatio-temporal neural network for taxi demand prediction using multisource urban data.
Trans. GIS
Chenhao Wu, Longgang Xiang, Jialin Yan, Yeting Zhang
2021 J jnl
A Guided Deep Learning Approach for Joint Road Extraction and Intersection Detection From RS Images and Taxi Trajectories.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Yali Li, Longgang Xiang, Caili Zhang, Fengwei Jiao, Chenhao Wu
2021 J jnl
Generating Road Networks for Old Downtown Areas Based on Crowd-Sourced Vehicle Trajectories.
Sensors
Caili Zhang, Yali Li, Longgang Xiang, Fengwei Jiao, Chenhao Wu, Siyu Li
2020 J jnl
A Flood-Discharge-Based Spatio-Temporal Diffusion Method for Multi-Target Traffic Hotness Construction From Trajectory Data.
IEEE Access
Tao Wu, Pengfei Zhang, Jianxin Qin, Di Wu, Longgang Xiang, Yiliang Wan
2020 J jnl
An Improved HMM-Based Approach for Planning Individual Routes Using Crowd Sourcing Spatiotemporal Data.
Sensors
Tao Wu, Zhixuan Zeng, Jianxin Qin, Longgang Xiang, Yiliang Wan
2020 J jnl
City-Wide Traffic Flow Forecasting Using a Deep Convolutional Neural Network.
Sensors
Shangyu Sun, Huayi Wu, Longgang Xiang
2019 J jnl
An Intersection-First Approach for Road Network Generation from Crowd-Sourced Vehicle Trajectories.
ISPRS Int. J. Geo Inf.
Caili Zhang, Longgang Xiang, Siyu Li, Dehao Wang
2019 J jnl
Fusing Taxi Trajectories and RS Images to Build Road Map via DCNN.
IEEE Access
Yali Li, Longgang Xiang, Caili Zhang, Huayi Wu
2017 J jnl
An intersection-based trajectory-region movement study.
Trans. GIS
Longgang Xiang, Tao Wu, Dick Ettema
2017 — conf
Organizing large-scale trajectories with adaptive Geohash-tree based on secondo database.
Geoinformatics
Meng Gao, Longgang Xiang, Jianya Gong
2016 J jnl
A MongoDB-Based Management of Planar Spatial Data with a Flattened R-Tree.
ISPRS Int. J. Geo Inf.
Longgang Xiang, Juntao Huang, Xiaotian Shao, Dehao Wang
2016 J jnl
Extracting Stops from Noisy Trajectories: A Sequence Oriented Clustering Approach.
ISPRS Int. J. Geo Inf.
Longgang Xiang, Meng Gao, Tao Wu
2016 J jnl
Updating Road Networks by Local Renewal from GPS Trajectories.
ISPRS Int. J. Geo Inf.
Tao Wu, Longgang Xiang, Jianya Gong
2013 J jnl
Fast Construction of Global Pyramids for Very Large Satellite Images.
Trans. GIS
Longgang Xiang, Jing Chen, Jianya Gong, Zhen Zeng
2004 B conf
Fast Computation of Iceberg Dwarf.
SSDBM
Longgang Xiang, Yucai Feng
2003 B conf
Computation of Sparse Data Cubes with Constraints.
DaWaK
Changqing Chen, Jianlin Feng, Longgang Xiang