Tripartite Graph Polarization Detection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing methods for identifying polarization in social media platforms are confounded by neutral users and content, leading to inaccurate grouping of users, as they only consider social network information and post-related data without incorporating user relationships and content fully.

Innovation Solution

A tripartite network system that integrates user, post, and tag data, using nonnegative matrix factorization (NMF) to generate a tripartite graph and perform optimization to identify polarized groups, allowing for targeted escalation or de-escalation of polarization in social media platforms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional community detection methods are used to identify polarized groups, then the system can detect communities in social networks, but the results are confounded by neutral users and content leading to inaccurate polarization identification

Engineering Contradiction:
Improvepolarization identification accuracyVSAvoidgrouping accuracy
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent segments the social network into three distinct types of nodes: users, posts, and tags. This segmentation allows the system to separately analyze and weight different components of the network, preventing neutral users and content from confounding the polarization detection. By dividing the network structure into these segments, the system can identify polarized groups more accurately without being misled by neutral elements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by assigning different weights and roles to different nodes and edges in the network. Users, posts, and tags are treated with different levels of importance and connection strength. This allows the system to focus on the most indicative elements for polarization detection while downweighting neutral or less relevant components, thereby improving both measurement precision and reliability of polarization identification.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If only social network information is considered, then the system can identify communities, but it cannot accurately distinguish polarized from neutral users and content

Engineering Contradiction:
Improvepolarization detection accuracyVSAvoiduser and content context
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent transitions from a traditional two-dimensional user-post network to a three-dimensional user-post-tag network. By adding the tag dimension, the system gains additional contextual information about content categories and topics. This dimensional expansion allows the system to better distinguish between polarized and neutral users by analyzing their interactions with specific tags, thereby reducing information loss and improving polarization detection accuracy.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The tripartite network structure serves multiple functions simultaneously: it identifies polarized groups, categorizes content by tags, and analyzes user behavior patterns. This multi-functionality allows the system to leverage tag information for both content organization and polarization detection, maximizing the utility of available data while improving measurement precision without requiring additional separate systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If nonnegative matrix factorization is applied to a bipartite network, then the system can cluster users and posts into polarity groups, but it cannot fully incorporate user relationships and content information

Engineering Contradiction:
Improveclustering accuracyVSAvoidnetwork structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the network into three distinct node types (users, posts, tags) and applies NMF to the resulting tripartite adjacency matrix. This segmentation allows the algorithm to simultaneously cluster users by polarity while also organizing posts and tags into corresponding categories. The segmented structure enables the system to incorporate both user relationships and content information into a unified clustering process, improving measurement precision without requiring an overly complex network model.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

By extending the network from bipartite (user-post) to tripartite (user-post-tag), the patent adds a third dimension that captures content categorization information. This dimensional expansion provides NMF with additional data about both users and posts, enabling more accurate clustering that reflects real-world polarization patterns while maintaining manageable computational complexity through the structured nature of the tripartite graph.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11126689B1Automated system to identify polarized groups on social media
Publication Date: 2021.09.21 HRL LAB
  • US11126689B1 patent drawing
  • US11126689B1 patent drawing
  • US11126689B1 patent drawing

AI summary

Described is a system for identifying and communicating with polarized groups in social media platforms. The system generates a tripartite graph from online social network data. The tripartite graph incorporates user data, post data, and tag data obtained from the online social network data. Nonnegative matrix factorization is performed on a decomposed tripartite graph to obtain an optimization function. The optimization function is solved to identify polarized groups in the online social network. Based on the identified polarized groups, the system sends pre-determined communications to members of each group aimed at targeted escalation or de-escalation of polarization in an online social media platform.