Review Excerpt Extraction via Attribute Segmentation

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Solution Overview

Problem

Consumers face difficulty in extracting useful information from a large number of diverse reviews when researching items for purchase, as existing systems do not efficiently summarize or prioritize relevant review excerpts based on consumer preferences.

Innovation Solution

The implementation of a review extractor system that categorizes reviews based on item attributes, ranks categories according to consumer preferences, and extracts representative review excerpts using semantic analysis to provide concise and relevant information to users.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a large number of reviews are provided to customers, then the information completeness is improved, but the information processing difficulty increases

Engineering Contradiction:
Improveinformation completenessVSAvoidinformation processing difficulty
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent segments the large volume of reviews into distinct categories based on item attributes (e.g., quality, price, durability). Each category contains reviews discussing specific aspects of the item, allowing customers to navigate and process information in manageable segments rather than overwhelming them with all reviews simultaneously.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary system (the review categorization and selection mechanism) that mediates between the complete set of reviews and the customer. This intermediary automatically categorizes, ranks, and selects representative reviews, reducing the customer's processing burden while preserving access to comprehensive review information.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If all reviews are displayed to customers, then the comprehensiveness is improved, but the time required to find useful information increases

Engineering Contradiction:
Improvereview comprehensivenessVSAvoidinformation search time
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The patent performs preliminary actions by automatically categorizing and ranking reviews before they are presented to customers. Reviews are pre-processed into categories based on item attributes and ranked within each category, so that when customers access the reviews, the most relevant information is already organized and prioritized, eliminating the need for customers to manually search through all reviews.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent applies local quality by providing different levels of review organization and presentation based on customer needs. Each category contains reviews with specific focus areas, and representative reviews are highlighted within categories, allowing customers to quickly access locally-relevant information without processing the entire review set.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If diverse opinions in reviews are preserved, then the viewpoint diversity is improved, but the difficulty of extracting useful information increases

Engineering Contradiction:
Improveviewpoint diversityVSAvoidinformation extraction ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent segments diverse review opinions into distinct categories based on item attributes. Each category groups reviews with similar viewpoints or focus areas (e.g., positive comments about quality, negative comments about price). This segmentation preserves viewpoint diversity while making it easier for customers to extract useful information by allowing them to selectively explore categories relevant to their decision-making needs.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10402871B2Automatic review excerpt extraction
Publication Date: 2019.09.03 AMAZON TECH INC
  • US10402871B2 patent drawing
  • US10402871B2 patent drawing
  • US10402871B2 patent drawing

AI summary

Disclosed are various embodiments for extracting an excerpt from a representative review of an item, such as an item available for purchase in an electronic commerce system. Attributes or categories used in reviews of an item may be identified and ranked according to consumer preference. Upon ranking the categories, an excerpt may be extracted from a review corresponding to a ranked one of the attributes or categories. The excerpt may be identified and extracted if a number of reviews for an item exceeds a threshold quantity as it may be impractical for a user to read every review written about the item.