JD Retail Technology
JD Retail Technology
Mar 31, 2022 · Industry Insights

How Data‑Driven Omni‑Channel Marketing Can Revive Offline ROI

The article analyzes the shortcomings of traditional offline advertising, proposes a data‑empowered omni‑channel marketing model that combines online consumer signals with spatial POI data, demonstrates its application with a case study, and outlines direct and indirect metrics for evaluating campaign effectiveness.

Consumer InsightsMarketing ROIOffline Advertising
0 likes · 15 min read
How Data‑Driven Omni‑Channel Marketing Can Revive Offline ROI
21CTO
21CTO
Aug 19, 2020 · Databases

How to Use MySQL Polygon Types for Precise Location Check‑In

This tutorial explains how to obtain geographic coordinates, store them as MySQL POLYGON types following OGC standards, insert campus area data, and query with spatial functions and SPATIAL indexes to determine whether a user is within a defined check‑in region.

GISGeolocationMySQL
0 likes · 7 min read
How to Use MySQL Polygon Types for Precise Location Check‑In
Baidu Maps Tech Team
Baidu Maps Tech Team
Sep 20, 2016 · Databases

Baidu Maps Reverse Geocoding: Grid Indexing & Incremental Updates

This article explains how Baidu Maps’ reverse‑geocoding service converts coordinates into addresses using point, line, and polygon data mapped onto a grid index, describes the incremental indexing mechanism that enables rapid data updates, and highlights the system’s high availability and performance characteristics.

Spatial Datagrid indexinghigh availability
0 likes · 6 min read
Baidu Maps Reverse Geocoding: Grid Indexing & Incremental Updates
21CTO
21CTO
Aug 8, 2015 · Artificial Intelligence

How to Achieve High-Accuracy GPS Map Matching: Algorithms, Data, and Implementation

This article reviews map‑matching challenges, surveys algorithm categories, describes the ST‑Matching method and its implementation details, and presents experimental results using a large road network and GPS data to achieve high‑accuracy trajectory alignment.

GPSST-MatchingSpatial Data
0 likes · 8 min read
How to Achieve High-Accuracy GPS Map Matching: Algorithms, Data, and Implementation