算法geohash-阿里云

相册服务中的故事生成算法介绍

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Go语言核心编程 - 数据结构和算法

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geoHash算法入门学习总结

一。geoHash简介geohash的思想是将二维的经纬度转换成一维的字符串，geohash有以下三个特点：1.字符串越长，表示的范围越精确。编码长度为8时，精度在19米左右，而当编码长度为9时，精度在2米左右。2.字符串相似的表示距离相近，利用字符串的前缀匹配，可以查询附近的地理位置。这样就实现了...

空间索引 - GeoHash算法及其实现优化

转自原文空间索引 - GeoHash算法及其实现优化上篇博客中提到了空间索引的用途和多种数据库对空间索引的支持情况，那么在应用层以下，好学的小伙伴应该会考虑空间索引的实现原理了。目前空间索引的实现有 R树和其变种GIST树、四叉树、网格索引等。网格索引不再多提，使用普...

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更新时间 2023-05-05 11:16:29

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