Geographic position searching method and geographic position searching device

A technology of geographical location and search method, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as poor user experience, inability to obtain search results, and inability to meet people's search needs, so as to improve accuracy and Recall rate, user experience improvement, and the effect of meeting search needs

Inactive Publication Date: 2014-04-09
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires that the two terms before and after the search term must satisfy the upper-lower level relationship before proceeding. For the search term containing the wrong parent-child level relationship, the correct search result cannot be obtained, which affects the accuracy of geographic information search. and recall rate, unable to meet people's search needs, poor user experience

Method used

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  • Geographic position searching method and geographic position searching device
  • Geographic position searching method and geographic position searching device
  • Geographic position searching method and geographic position searching device

Examples

Experimental program
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Embodiment 1

[0058] figure 1 It is a flow chart of the search method for the geographic location provided in this embodiment, such as figure 1 As shown, the method includes:

[0059] Step S101. Obtain the query word input by the user, and segment the word to obtain each term.

[0060]The query word (query) entered by the user when searching the map is often in the form of "where+what". where is a term describing spatial information, called a spatial term, usually a place name. what is a term describing an entity object, called an entity object, which is usually the name of a point of interest. For example, the query term is "Putian Building, Zhongguancun, Haidian District", where where is "Zhongguancun, Haidian District", which may include multiple terms, and what is "Putian Building", which may also include one or more terms.

[0061] The obtained query words are processed by the existing word segmentation method to obtain each word item. For example, "Zhongguancun Putian Building, H...

Embodiment 2

[0111] Figure 4 It is a schematic diagram of a location search device provided in this embodiment. Such as Figure 4 As shown, the device includes: an acquisition module 10 , a retrieval module 20 , a merge module 30 and a positioning module 40 .

[0112] The obtaining module 10 is used to obtain the query words input by the user, and segment the words to obtain each term.

[0113] The query word (query) entered by the user when searching the map is often in the form of "where+what". where is a term describing spatial information, called a spatial term, usually a place name. what is a term describing an entity object, called an entity object, which is usually the name of a point of interest. For example, the query term is "Putian Building, Zhongguancun, Haidian District", where where is "Zhongguancun, Haidian District", which may include multiple terms, and what is "Putian Building", which may also include one or more terms.

[0114] The acquisition module 10 processes t...

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Abstract

The invention provides a geographic position searching method and a geographic position searching device. The establishing method comprises the following steps of acquiring a searching term inputted by a user; dividing the searching term so as to obtain various lexical items; retrieving one or a plurality of space data corresponding to the lexical items from a space database which is established in advance; determining an entity object of the searching term; sequentially performing space merging on the space data corresponding to each two adjacent lexical items; determining the geographic range of the entity object; positioning the geographic position of the entity object from the geographic range of the entity object; and returning to a searching result of the searching term. Compared with the prior art, the geographic position searching method has the advantages that even if the text modes of the space data do not have a leader-member relation, a correct searching result can be returned; the accuracy and the recall rate of geographic information searching can be increased; the searching demands of people are met; and the user experience is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of electronic map information, in particular to a method and device for searching a geographic location. 【Background technique】 [0002] With the popularization of the Internet and the rapid development of information technology, people are increasingly dependent on various information. Map search services such as location based services (LBS) have become more and more people's daily life. One of the indispensable services in life, through the map search engine, users can quickly find the information they need from massive geographic information data. [0003] Most of the methods used by existing search engines are based on text retrieval technology. After segmenting the search words entered by users, each term is obtained, and the existing address information tree is used to classify each term step by step through text matching. Confirm the administrative level relationship of place names, and confirm th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/9537
Inventor 刘凯奎
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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