A social network hotspot event detection method based on multi-data stream computing

A hot event, multi-data stream technology, applied in the field of social network hot event detection, can solve the problem of affecting the detection effect, regardless of the different importance of data correlation event detection, to reduce high-dimensionality and sparsity, solve the problem of Uncertainty, the effect of improving relevance

Active Publication Date: 2022-03-29
SOUTH CHINA UNIV OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the correlation of data and the different importance of event detection are not considered, simple feature combination will inevitably affect the detection effect

Method used

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  • A social network hotspot event detection method based on multi-data stream computing
  • A social network hotspot event detection method based on multi-data stream computing
  • A social network hotspot event detection method based on multi-data stream computing

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Experimental program
Comparison scheme
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Embodiment

[0077] Such as figure 1 and figure 2 As shown, a social network hotspot event detection method based on multi-data stream computing includes the following steps:

[0078] S1. Use the deep learning method for processing time series data to extract word features from user-generated content short text data, and perform topic analysis on short text word features;

[0079] Described deep learning method is Long Short-Term Memory (LSTM), for keeping the sequentiality of word in short text, adopts LSTM to extract global word feature;

[0080] The user-generated content short text word feature F is divided into a global word feature and a local word feature, and its expression is: Among them, g i Is the global word feature, G is the global word feature vector; ne j is a named entity, NE is a named entity vector;

[0081]The topic analysis refers to using the document topic generation model LatentDirichlet Allocation (LDA) to identify the topic information hidden in the short te...

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Abstract

The invention discloses a social network hotspot event detection method based on multi-data flow calculation, which comprises the following steps: extracting word features from user-generated content short text data, and performing theme analysis on the word features; establishing the distinction between themes and the cohesion within the theme, and use the emergent theme as the feature of the user-generated content; for the user-generated content, user behavior data and user portrait data, use the fuzzy set theory to establish an adaptive unsupervised target decision; for each Granularize the data of a single data stream, and measure the importance and correlation of multiple granular structures for multiple data streams, so as to reduce and judge the relevance of multiple granular structures; make decisions based on correlation and goals for different granular structures Perform coverage analysis to establish multi-granularity space calculations and detect hotspot events. The invention can realize unsupervised self-adaptive decision-making, solve multi-source heterogeneous data computing problems, and effectively detect hot events in social networks.

Description

technical field [0001] The invention relates to the fields of natural language processing and text mining, in particular to a method for detecting social network hotspot events based on multi-data stream calculation. Background technique [0002] Hotspot events have the characteristics of "widespread concern", "uncertainty" and "hazardousness", and have far-reaching impacts. Hot event detection in social networks is particularly important. Hot event detection is not only the theoretical support and challenge of topic detection, public opinion analysis, sentiment analysis, etc., but also the core content of important applications such as social network analysis, network public opinion monitoring, e-commerce platform business analysis, and financial information analysis. For example, in social network analysis, by analyzing the social network communication situation, user behavior, etc., to analyze public sentiment and user influence, and to identify opinion leaders and seed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/35G06F16/30G06F16/95
Inventor 李风环王振宇郭泽豪
Owner SOUTH CHINA UNIV OF TECH
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