POI retrieving and ordering method, device and computer readable storage medium

Abstract

The invention provides a POI retrieving and ordering method, a device and a computer readable storage medium. The method comprises the steps that a POI retrieving request of a user is received, wherein the POI retrieving request comprises a location base point, the retrieving area range and target POI attributes; dimension reduction processing is conducted on longitude and latitude data of the location base point by means of GeoHash coding to obtain coded data of the location base point; the location base point is mapped into a coding unit corresponding to the coded data, and the retrieving code range corresponding to the retrieving area range is determined; POI retrieving is conducted in the retrieving code range by taking the target POI attributes as the retrieving conditions to obtain atarget POI set; the distances between various target POIs and the location base point are calculated, and the target POIs are ordered according to the distance from near to far; and an ordering result of the target POIs is displayed to the user. According to the method, precise retrieving on the POIs is completed by utilizing the mapping relation between geographical locations and GeoHash coded data and combining the POI attribute information, and the calculation amount needed in the POI retrieving and ordering process is decreased.

Description

technical field [0001] The present invention relates to the technical field of information processing, and in particular to a Point of Interest (POI) retrieval method, device and computer-readable storage medium. Background technique [0002] Point of Interest (POI), also known as Point of Information, is the core data based on Location Based Service (LBS). Bubble icons are often used to represent POIs on electronic maps, like on electronic maps. National attractions, government agencies, companies, shopping malls, restaurants, etc. are all POIs. In the online-to-offline (OnlineToOffline, O2O) business model, POI retrieval is a very important application scenario, which is usually used to retrieve the target POI within the specified range of the user's current location and obtain its attribute information. [0003] Currently commonly used POI retrieval methods need to traverse the database, which consumes a large amount of computing resources. When the number of target POIs...

AI Technical Summary

Problems solved by technology

[0003] Currently commonly used POI retrieval methods need to traverse the database, which consumes a large amount of computing resources. When the number of target POIs is very large, the sorting op

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