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Baidu Maps Tech Team
Baidu Maps Tech Team
Nov 10, 2025 · Fundamentals

How GENREGION Revolutionizes City Region Segmentation with Vector Road Networks

GENREGION is an open‑source, vector‑based city region segmentation system that leverages road‑network graphs, novel MBR‑based clustering, and recursive left‑most vector search to produce semantically accurate, scalable polygons, outperforming traditional grid and vector methods in both semantic similarity and computational efficiency.

city segmentationclusteringspatial analysis
0 likes · 11 min read
How GENREGION Revolutionizes City Region Segmentation with Vector Road Networks
JD Tech
JD Tech
Mar 17, 2025 · Fundamentals

Fundamentals of Map Trajectory Technology and GIS Applications

This article provides a comprehensive overview of map trajectory technology, covering geographic coordinate systems, map projections, GIS software basics, data formats, GPS data processing, real‑time and historical trajectory analysis, and recent advances such as AI‑driven services and cross‑domain integrations.

GISGPSPython
0 likes · 21 min read
Fundamentals of Map Trajectory Technology and GIS Applications
JD Tech Talk
JD Tech Talk
Mar 17, 2025 · Fundamentals

Map Trajectory Technology: Fundamentals, Data Formats, GIS Operations, and Path Planning

This article provides a comprehensive overview of map trajectory technology, covering GIS fundamentals, coordinate systems, data formats, import/export methods, GPS processing, spatial analysis, path‑planning algorithms, real‑time and historical tracking, and recent advances such as AI‑driven services and high‑precision mapping.

GISGPSPython
0 likes · 30 min read
Map Trajectory Technology: Fundamentals, Data Formats, GIS Operations, and Path Planning
Didi Tech
Didi Tech
Sep 24, 2020 · Artificial Intelligence

Trajectory Data Mining for Road Network Updates and Route Deviation Detection

The paper shows how DiDi’s massive driver‑trajectory data can be mined with clustering, map‑matching, and deep‑learning techniques to automatically refine intersection positions, calibrate road‑network topology, and detect both individual detours and collective road‑closure anomalies, enabling real‑time map improvements and safety services.

road networkroute deviationspatial analysis
0 likes · 19 min read
Trajectory Data Mining for Road Network Updates and Route Deviation Detection
Manbang Technology Team
Manbang Technology Team
Nov 15, 2018 · Fundamentals

Introduction to GIS and Its Application in Highway Logistics Platforms

This article explains the fundamentals of Geographic Information Science (GIS), recounts John Snow's historic cholera map as an early GIS example, and details how GIS technology can be leveraged to build a road‑logistics platform that enables real‑time monitoring, dispatch, path planning, and data‑driven decision making for transportation companies.

Data visualizationGISGeospatial
0 likes · 10 min read
Introduction to GIS and Its Application in Highway Logistics Platforms