BestHub
Sign in
Tag

Geolocation

0 views collected around this technical thread.

Zhuanzhuan Tech
Zhuanzhuan Tech
Mar 20, 2025 · Backend Development

Implementing Geolocation‑Based Fraud Detection with Redis GEO Commands

This article outlines a fraud‑detection use case that leverages Redis GEO commands to compare user order addresses with known malicious locations, discusses technology choices among MySQL, Redis, and Elasticsearch, explains Redis’s Sorted‑Set and GeoHash implementation, and provides Java code examples for GEOADD, GEOPOS, GEODIST, and GEORADIUS.

GeoHashGeolocationRedis
0 likes · 9 min read
Implementing Geolocation‑Based Fraud Detection with Redis GEO Commands
IT Services Circle
IT Services Circle
Feb 20, 2025 · Backend Development

15 Common Redis Use Cases with Code Examples

This article presents fifteen practical Redis usage scenarios—including caching, distributed locks, leaderboards, counters, message queues, session management, bitmap sign‑ins, geolocation, rate limiting, pub/sub, delayed tasks, global IDs, recommendation models, user follow relationships, and timeline feeds—each illustrated with concise code snippets.

CachingDistributed LockGeolocation
0 likes · 10 min read
15 Common Redis Use Cases with Code Examples
php中文网 Courses
php中文网 Courses
Dec 12, 2024 · Backend Development

How to Display Nearby Points of Interest Using PHP and Baidu Maps API

This tutorial explains step-by-step how to register a Baidu Maps developer account, set up a PHP script, create an HTML page with a map container, retrieve geographic coordinates via JavaScript, call the Baidu Maps API to fetch nearby points of interest, and render them on the page.

AJAXBaidu Maps APIGeolocation
0 likes · 6 min read
How to Display Nearby Points of Interest Using PHP and Baidu Maps API
php中文网 Courses
php中文网 Courses
Apr 15, 2024 · Backend Development

How to Display Nearby Points of Interest Using PHP and Baidu Maps API

This tutorial explains step‑by‑step how to register a Baidu Maps developer account, create a PHP script, build a simple HTML page, retrieve geographic coordinates via Ajax, call the Baidu Maps API to fetch surrounding POIs, and render them on the map for a web project.

AJAXBaidu MapsGeolocation
0 likes · 6 min read
How to Display Nearby Points of Interest Using PHP and Baidu Maps API
Architecture & Thinking
Architecture & Thinking
Oct 31, 2022 · Databases

Mastering Redis GEO: Store and Query Geolocation Data Efficiently

This article explains Redis' GEO feature, covering its data structures, commands like GEOADD, GEOPOS, GEODIST, GEORADIUS, and GEORADIUSBYMEMBER, and demonstrates how to store, retrieve, and calculate distances for location‑based services with practical code examples and visual illustrations.

GEOGeolocationLocation Services
0 likes · 10 min read
Mastering Redis GEO: Store and Query Geolocation Data Efficiently
Code Ape Tech Column
Code Ape Tech Column
Jul 22, 2022 · Backend Development

Retrieving Client IP and Geolocation in Java with HttpServletRequest and ip2region

This article explains how to obtain a user's IP address from an HttpServletRequest in Java, convert it to geographic location using the ip2region library, and provides detailed code examples, Maven setup, caching strategies, and performance testing procedures for backend developers.

GeolocationHttpServletRequestIP address
0 likes · 15 min read
Retrieving Client IP and Geolocation in Java with HttpServletRequest and ip2region
Top Architect
Top Architect
Jun 20, 2021 · Backend Development

Implementing IP‑Based City Detection and Visit Counting in a Spring Backend

This article explains how to obtain a user's city from their IP address in a Java Spring backend, using the QQWry IP database, custom utility classes, and a login interceptor to count visits per city, with complete code examples and deployment considerations.

GeolocationIPInterceptor
0 likes · 6 min read
Implementing IP‑Based City Detection and Visit Counting in a Spring Backend
Amap Tech
Amap Tech
Dec 20, 2019 · Artificial Intelligence

Advances in Network Positioning: Unsupervised Clustering and Supervised Hierarchical Ranking Algorithms

Gaode’s network positioning has evolved from unsupervised clustering of massive AP fingerprints and Bayesian grid ranking to a supervised two‑level hierarchical model that scores candidate grids with a neural‑network LTR loss, while adding scenario‑specific CNN and spatio‑temporal modules for indoor, rail and subway accuracy, and it now looks toward image‑based, 5G and IoT positioning.

Big DataGeolocationfingerprint localization
0 likes · 12 min read
Advances in Network Positioning: Unsupervised Clustering and Supervised Hierarchical Ranking Algorithms
Tongcheng Travel Technology Center
Tongcheng Travel Technology Center
Sep 15, 2017 · Mobile Development

Mobile Location Testing Strategies for the Tongcheng Travel App

This article outlines the background, mechanisms, third‑party SDKs, test plan design, practical techniques, and real‑world case studies for ensuring accurate location services in the Tongcheng Travel mobile application across domestic and international scenarios.

App DevelopmentGeolocationLocation Services
0 likes · 7 min read
Mobile Location Testing Strategies for the Tongcheng Travel App
Architect
Architect
Mar 6, 2016 · Big Data

Clustering Geolocated User Events with DBSCAN and Spark

This article explains how to apply the DBSCAN clustering algorithm to geolocated user event data and leverage Apache Spark’s distributed processing with PairRDDs to efficiently identify frequent user regions, detect outliers, and build location‑based services such as personalized recommendations and security alerts.

Big DataClusteringDBSCAN
0 likes · 8 min read
Clustering Geolocated User Events with DBSCAN and Spark
Architect
Architect
Feb 20, 2016 · Databases

Understanding GeoHash: Spatial Indexing and Its Application in Proximity Queries

This article explains the GeoHash algorithm, how it converts latitude‑longitude coordinates into hierarchical string codes, the precision trade‑offs of different code lengths, the binary encoding process, the use of space‑filling curves, and practical considerations when applying GeoHash for nearby point‑of‑interest searches.

Database IndexGeoHashGeolocation
0 likes · 9 min read
Understanding GeoHash: Spatial Indexing and Its Application in Proximity Queries