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Point-of-interest data error type positioning and repeated recognition method and device

A data error and positioning method technology, applied in structured data retrieval, electronic digital data processing, geographic information database, etc., can solve the problems of low accuracy and high integrity requirements of POI data

Active Publication Date: 2017-11-21
LIAONING MOBILE COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the existing similarity calculation algorithm is used to determine the duplication of POI data, the integrity of POI field information is high, and POI data duplication is often caused by incomplete POI field information. Therefore, using the existing technology The accuracy of the scheme to determine whether the POI data is repeated is not high

Method used

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  • Point-of-interest data error type positioning and repeated recognition method and device
  • Point-of-interest data error type positioning and repeated recognition method and device
  • Point-of-interest data error type positioning and repeated recognition method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] In Embodiment 1 of the present invention, in the scenario where the basic field includes a name field, the detailed processing flow of the POI data error type positioning method is as follows: figure 2 shown, including the following steps:

[0111] Step 201: perform word segmentation processing on the name field of the POI data pair, and obtain the number of layers where each word segmentation forming the name field is located;

[0112] Specifically, according to the hierarchical parameters of the set POI name field, the word segmentation process is performed on the name field of the POI data pair, and the number of layers where each word segmentation of the name field forming the POI data pair is obtained; the POI data pair includes user The input POI data and POI raw data corresponding to the POI data input by the user.

[0113] Here, the hierarchical parameters of the POI name field can be set according to the electronic map industry classification standards and ac...

Embodiment 2

[0139] In Embodiment 2 of the present invention, in the scenario where the basic field includes an address field, the detailed processing flow of the POI data error type positioning method is as follows: image 3 shown, including the following steps:

[0140] Step 301: Carry out word segmentation processing to the address field of the POI data pair, and obtain the number of layers where each word segmentation of the address field forming the POI data pair is located;

[0141] Specifically, according to the hierarchical parameters of the set POI address field, word segmentation is performed on the address field of the POI data pair, and the layer number of each word segmentation of the address field forming the POI data pair is obtained; the POI data pair includes user The input POI data and POI raw data corresponding to the POI data input by the user.

[0142] layer 0

city ​​name

Layer 6

Former name of the building

Tier 1

urban area

Layer 7...

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Abstract

The invention discloses a point-of-interest (POI) data error type positioning method. According to the method, word segmentation processing is performed on a basic field of a POI data pair according to set layering parameters of the basic field of a POI, and the number of layers where all segmented words forming the basic field are located is acquired; the POI data pair comprises POI data input by a user and POI original data corresponding to the POI data input by the user; the basic field comprises at least one subfield; a similarity value between the subfields of the POI data pair is calculated according to the number of layers where all segmented words forming the subfields are located; and when it is judged that the similarity value between the subfields of the POI data pair belongs to error threshold values according to the set error threshold values corresponding to different error types of the subfields, the error type of the subfields of the POI original data is positioned. Meanwhile, the invention furthermore discloses a POI data error type positioning device and a POI data repeated recognition method and device.

Description

technical field [0001] The present invention relates to the field of data quality control, in particular to a method and device for point of interest data error type positioning and duplicate identification. Background technique [0002] Point Of Interest (POI) refers to all geographical objects that can be abstracted as points in geographic information systems, especially some geographical entities that are closely related to people's lives, such as schools, banks, gas stations, etc. The main purpose of POI is to enhance the ability to describe and query the location of things or events by describing the addresses of things or events, thereby improving the accuracy and speed of geographic positioning. In order to provide users with products that meet their personalized service needs, POI data providers such as Baidu Maps and Dianping will establish their own POI databases. The POI database stores a large amount of POI data, and each POI data contains POI information. Aspec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06K9/62
CPCG06F16/29G06F18/22
Inventor 王世民
Owner LIAONING MOBILE COMM
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