A method and device for parsing an address query string

An address query and address technology, applied in the field of geographical location search, can solve problems such as inaccurate address search results, achieve the effect of expanding recall rate, reducing recall, and ensuring accuracy

Inactive Publication Date: 2019-12-03
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides an address query string parsing method and device to solve the problem of inaccurate address search results in the prior art

Method used

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  • A method and device for parsing an address query string
  • A method and device for parsing an address query string
  • A method and device for parsing an address query string

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as figure 1 As shown, it is a flow chart of the address query string parsing method provided in Embodiment 1 of the present invention, including the following steps:

[0061] S101: Obtain the address query string input by the user and parse it through the geographic information system GEO to obtain the address string;

[0062] S102: Correct the address component and non-address component in the address string through pattern recognition to obtain the corrected address query string;

[0063] S103. Construct a first-level substring and a second-level substring respectively according to the corrected address query string, as a parsing result.

[0064] This embodiment uses the GEO analysis results to make where what analysis in the two-layer space, which can be more beneficial to expand the recall rate of the address search engine and obtain the more desired results of the user; on this basis, the embodiment of the present invention has done two The layer what filter...

Embodiment 2

[0066] Such as figure 2 As shown, it is a flow chart of the address query string parsing method provided in Embodiment 2 of the present invention, including the following steps:

[0067] S201, obtaining the address query string input by the user and analyzing it through the geographic information system GEO to obtain the address string;

[0068] S202. Correct the address component and non-address component in the address string through pattern recognition to obtain a corrected address query string;

[0069] S203, respectively constructing a first-level substring and a second-level substring according to the modified address query string;

[0070] S204. Filter the non-address components in the first-level substring and the second-level substring according to the preset filtering vocabulary, and use the filtered first-level substring and second-level substring as the analysis result.

[0071] Here, filtering non-address components in the first-level substring and second-level...

Embodiment 3

[0094] In the embodiment of the present invention, the GEO system can accept the user's query string, scan the query string from left to right, and identify the address components and non-address components in the query string from large to small, and give The latitude and longitude range at the address level. Taking the address query string entered by the user "KFC, Futong East Street, Chaoyang District, Beijing" as an example, the result after GEO analysis is:

[0095] Country: China

[0096] Province: Beijing

[0097] Districts and counties: Chaoyang District

[0098] Street: Futong East Street

[0099] City code: 110105

[0100] Non-address string before the address string: empty

[0101] Non-address string after the address string: KFC

[0102] Longitude: 116.475339

[0103] Latitude: 39.986453

[0104] Range: 1000m

[0105] Geocoding Recognition Reliability: 0.705882

[0106] The address of the smallest level: Futong East Street

[0107] The level of the small...

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Abstract

The invention relates to the technical field of geographic position search, in particular to an address query string parsing method and apparatus for solving the problem of inaccurate address search results in the prior art. The method comprises the steps of: obtaining an address query string input by the user and performing analysis through a geographic information system (GEO) to obtain an address string; correcting an address component and a non-address component in the address string through mode identification to obtain a corrected address query string; and constructing a primary substring and a secondary substring according to the corrected address query string respectively to serve as analysis results.

Description

technical field [0001] The invention relates to the technical field of geographic location search, in particular to a method and device for parsing an address query string. Background technique [0002] Existing address search is already a big business for people using map products. Through address search, people can realize the application requirements for specific destinations, life-like services, and route planning. [0003] However, address search has its own peculiarities. In a map search engine, POI (Point of Interest, point of interest) and other data are distinguished by space when creating an inverted index. Finding the right spatial extent to retrieve users' needs is crucial. [0004] Usually, when searching on a map, the user does not specify the spatial range by himself. The analysis of the spatial range often needs to be obtained by computer analysis of the user's query string. After analyzing the spatial range, it is necessary to extract the POI (or addres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29G06F16/9537
Inventor 郭涛
Owner ALIBABA (CHINA) CO LTD
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