Neural Network Aspect-Sentiment Analysis for Attention-Property-Aware Ratings

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Solution Overview

Problem

Existing sentiment analysis approaches fail to extract the strength of user attention to specific properties of products or services, which can dominate a user's attitude and affect the generosity of their rating, leading to inaccurate feedback analysis.

Innovation Solution

A neural network-based method that extracts aspect-sentiment pairs from user reviews to estimate an attention-property-aware rating, incorporating both implicit and explicit features of the text, and performs a response based on the estimated rating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If existing sentiment analysis approaches are used, then the analysis process is simple and fast, but the extraction precision of user attention strength to specific properties is poor

Engineering Contradiction:
Improveextraction precision of user attention strengthVSAvoidanalysis system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the review text into aspect-sentiment pairs, where each pair consists of a specific product aspect and the user's sentiment toward it. This segmentation allows the system to identify and analyze user attention strength toward specific properties independently, improving extraction precision while maintaining manageable system complexity through structured data representation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a new dimension to sentiment analysis by extracting not just the sentiment polarity but also the attention strength dimension. The attention-property-aware rating model processes both the sentiment direction and the intensity of user attention toward different aspects, transforming traditional one-dimensional sentiment scoring into a multi-dimensional analysis that captures user attention strength

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

2Reliability

If existing sentiment analysis approaches are used, then the system is easy to implement, but the accuracy of feedback analysis is insufficient

Engineering Contradiction:
Improveaccuracy of feedback analysisVSAvoidsystem implementation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces aspect-sentiment pairs as an intermediary representation between the raw review text and the final rating prediction. This intermediary structure serves as a bridge that captures both sentiment information and attention strength, enabling more accurate feedback analysis while organizing the complexity into a manageable processing pipeline

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional mechanical sentiment analysis methods with a neural network-based approach that processes aspect-sentiment pairs to generate attention-property-aware ratings. This substitution enables the system to capture non-linear relationships and subtle patterns in user feedback, improving accuracy while abstracting the implementation complexity into a unified deep learning model

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Loss of information

If traditional sentiment analysis is used, then the processing speed is high, but the information granularity of user attitudes is insufficient

Engineering Contradiction:
Improveinformation granularity of user attitudesVSAvoidprocessing speed
Core Design Contradiction:
Loss of informationVSProductivity

Solution Approach 1:

The patent segments user feedback into granular aspect-sentiment pairs, where each pair represents a specific product aspect and the user's targeted sentiment. This segmentation preserves fine-grained information about user attitudes toward different properties while maintaining efficient processing through structured data formats that can be quickly analyzed by the neural network

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12406152B2Aspect-aware sentiment analysis of user reviews supporting AI-based decision making
Publication Date: 2025.09.02 NEC CORP
  • US12406152B2 patent drawing
  • US12406152B2 patent drawing
  • US12406152B2 patent drawing

AI summary

Rating prediction systems and methods include extracting aspect-sentiment pairs from an input text. An attention-property-aware rating is estimated for the input text using the extracted aspect-sentiment pairs with a neural network that captures implicit and explicit features of the text. A response to the input text is performed based on the estimated rating.