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Travel note place name disambiguation method based on time geography

A technology of geography and place names, applied in geographic information database, electronic digital data processing, special data processing applications, etc., can solve the problem of no travel note disambiguation method.

Pending Publication Date: 2020-10-20
WUHAN UNIV OF TECH
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  • Description
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AI Technical Summary

Problems solved by technology

Although there are many disambiguation methods for place names, different disambiguation methods correspond to different types of texts, and there is no disambiguation method specifically for travel notes

Method used

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  • Travel note place name disambiguation method based on time geography
  • Travel note place name disambiguation method based on time geography
  • Travel note place name disambiguation method based on time geography

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Such as figure 1 As shown, a method for disambiguation of place names in travel notes based on time geography includes the following steps:

[0033] 1) Extract the place names and their time tags in the travel text, divide the extracted place names into ambiguous place names and unambiguous place names, assign unique latitude and longitude positions to unambiguous place names, and list all possible latitude and longitude positions corresponding to the place names for ambiguous place names ;

[0034] 2) Use PPA for disambiguation.

[0035] In travel notes, tourists will record some place names and the time informat...

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Abstract

The invention discloses a travel note place name disambiguation method based on time geography. The method comprises the following steps: 1) extracting place names and time labels thereof in a travelnote text, dividing the extracted place names into ambiguous place names and unambiguous place names, allocating unique longitude and latitude positions to the unambiguous place names, and listing allpossible longitude and latitude positions corresponding to the ambiguous place names; 2) disambiguating the ambiguous place names by using PPA; 3) disambiguating the ambiguous place names by utilizing the reachable domain at the determined moment; and 4) sorting by using probability time geography, calculating a probability for each remaining ambiguous place name, and performing descending sortaccording to a calculation result. The invention provides a disambiguation method based on time geography, which is different from previous methods based on rules and the like, is suitable for travelnote place name disambiguation, supplements the disambiguation method in the aspect of fine-grained place names, and enables place name disambiguation to be more accurate.

Description

technical field [0001] The invention relates to natural language processing technology, in particular to a time geography-based disambiguation method for place names in travel notes. Background technique [0002] The continuous development and popularization of the network has led to a rapid increase in the amount of information on the Internet. The network has become a large-scale database containing many digital texts and the main source for people to obtain geographic information. According to statistics, at least 70% of text documents contain expressions expressed in the form of place names. The geo-location reference for . In real life, there is often ambiguity in this information, such as Zhongshan Park. Geographical phenomena with the same name will cause uncertainty in the location semantics. Therefore, it is necessary to disambiguate the ambiguous location semantics and assign it a unique latitude and longitude. [0003] Existing methods generally disambiguate base...

Claims

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Application Information

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IPC IPC(8): G06F40/295G06F16/29
CPCG06F40/295G06F16/29
Inventor 尹章才赵晓茹曹莉婷李三娟
Owner WUHAN UNIV OF TECH
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