Method and device for judging whether webpage contains specified point of interest POI

Abstract

The invention discloses a method and a device for judging whether a webpage contains a specified point of interest POI. The method comprises the following steps: converting address text data of the specified POI into address latitude and longitude data; obtaining address text data and corresponding address latitude and longitude data contained in the webpage; determining whether the webpage contains the address text data of the specified POI according to the address latitude and longitude data of the specified POI and the address latitude and longitude data corresponding to the obtained address text data contained in the webpage; if the webpage contains the address text data of the specified POI, further judging whether the webpage contains name text data of the specified POI; and if the webpage contains the name text data of the specified POI, determining that the webpage contains the specified POI. According to the method and the device disclosed in the technical scheme of the invention, by means of the property that the specified POI has unique latitude and longitude, a single text matching manner is avoided, the mining depth is large, the obtained data sizes are greatly increased, and meanwhile, the accuracy is guaranteed.

Description

technical field [0001] The invention relates to the field of data mining, in particular to a method and device for judging whether a specified point of interest POI is included in a webpage. Background technique [0002] POI (Point of Interest), that is, points of interest, is important information in geographic information systems, and can even be called the cornerstone of the entire map navigation industry. In GIS, a POI can be a house, a store, a mailbox, a bus stop, etc. Traditional geographic information collection methods require map surveyors to use sophisticated surveying and mapping instruments to obtain the latitude and longitude of a POI, and then mark it down. [0003] On the Internet, it is possible to make the base map data obtained by surveying and mapping into an electronic map. Naturally, POIs can be marked on the electronic map according to their latitude and longitude. Most of the existing life service platforms have their own POI databases, which can pr...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the data mining of POI is carried out by searching directly in the webpage whether there is text matching the name text data and address text data of the specified POI in the webpage. However, for a specified POI, the name and address of the POI There can be multiple expressions, so that when the data mining of the POI is carried out in the way of text whole-word matching, POIs whose names or addresses are expressed differently from the selected name text data or address text data will not be mined , which precisely includes the POI whose name or address is substantially the same as the name text data or address text data of the POI to be mined, that is, insufficient mining

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