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A Method of Displaying Location Emotions on a Virtual Earth Platform

An emotion and platform technology, applied in the direction of instrumentation, computing, semantic analysis, etc., to achieve high practicability, strong scalability and reusability, and concise steps

Active Publication Date: 2019-09-06
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention can be decomposed into two aspects: to solve the problem of batch extraction of position-based emotional indicators and influencing factors from microblog text and tags; question

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  • A Method of Displaying Location Emotions on a Virtual Earth Platform
  • A Method of Displaying Location Emotions on a Virtual Earth Platform
  • A Method of Displaying Location Emotions on a Virtual Earth Platform

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specific Embodiment approach

[0045] refer to figure 1 Shown, the present invention at first utilizes Sina microblogging API to obtain microblog dynamics and POI quantity, extracts therefrom the quantitative index of microblog text emotion polarity and emotion influence factor; Use CZML language to build dynamic thematic layers and emotional visualization models; finally, load these models into the Cesium platform for dynamic 3D visualization, browsing, and interactive operations. The present invention can adopt PHP under microcomputer platform, Python language development realizes, and specific implementation is as follows:

[0046] Data Sources

[0047] The present invention conducts visual research on location-based emotion and affective factors of emotion. The data source is Sina Weibo. Sina Weibo is the most mainstream and popular Weibo product in China. As of March 2014, Weibo has 143.8 million monthly active users and 66.6 million daily active users. Weibo emotions are often expressed in Weibo t...

Embodiment

[0102] In order to realize the method proposed by the present invention, the present invention takes the downtown area of ​​Shanghai as the visualization area to carry out a case study. The central urban area of ​​Shanghai refers to the area within the outer ring road of Shanghai, with an area of ​​about 660 square kilometers, which is the most densely populated area in Shanghai. The present invention uses 752 1000 * 1000 meter grids covering the city center of Shanghai as a statistical unit ( image 3 ), collected the microblog data (a total of 47,757 microblogs) published within a week from December 9, 2015 to December 16, 2015, and applied the visualization method.

[0103] In order to allow the method of data collection and processing to be expanded and reused, programs for batch acquisition of microblog data, sentiment scoring and CZML generation (converting tabular data in the database into CZML files) were written in the embodiment. Among them, the microblog data acqui...

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Abstract

The invention discloses a method for visualizing position-based sentiments on a virtual earth platform. The method comprises the following steps of: obtaining a microblog dynamic condition and a POI quantity by utilizing a Sina microblog API, and extracting quantitative indexes of microblog text sentiment polarities and sentiment influence factors therefrom; carrying out statistic on the quantitative indexes by taking a grid as a statistic unit, and on the basis, establishing dynamic thematic map layer and sentiment visualization models by utilizing a CZMI language; and finally loading the models into a Cesium platform to carry out dynamic three-dimensional virtualization, browsing and interaction operations. According to the method, the generated microblog sentiment models can express the dynamic changes in time and space scales, reflect the change relationship between microblog sentiments and the influence factors thereof to a certain extent, and carry out integration and share on internet.

Description

technical field [0001] The present invention relates to digital earth technology in the field of geospatial information technology and emotion analysis technology in the field of natural language processing, specifically a method of using VGI data to obtain location-based emotion and visualize it on a virtual earth platform. The generated microblog sentiment model can express the dynamic changes of sentiment and its influencing factors on time and space scales, and can reflect the changing relationship between microblog sentiment and its influencing factors to a certain extent, and can be integrated and shared on the Internet. Background technique [0002] Location-based emotions (LBEs for short) are sentiment data with geotagging. In location-based services (location-based services, referred to as LBS), it is widely used as a kind of data at the user's subjective cognitive level. Location-based sentiment research is an interdisciplinary research field that combines sentime...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/9535G06F16/9537G06F17/27
CPCG06F16/9535G06F16/9537G06F40/30
Inventor 王忠樑朱良峰
Owner EAST CHINA NORMAL UNIV