Keyword Association Filtering for E-commerce Search Accuracy

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Solution Overview

Problem

Item search in electronic commerce often results in inappropriate items being suggested due to incorrect keyword associations, leading to decreased user satisfaction and reduced usage of electronic commerce platforms.

Innovation Solution

An information processing device with a process target item extraction unit, appropriateness determination unit, and inappropriate keyword handling process unit that identifies and manages inappropriate keywords by analyzing keyword sets and item information to improve search results.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If item providers associate items with keywords to increase visibility, then transaction opportunities increase, but inappropriate keyword associations degrade search accuracy

Engineering Contradiction:
Improvetransaction opportunityVSAvoidsearch accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The system performs preliminary actions by pre-defining keyword sets that are unlikely to be jointly assigned to identical items before search operations occur. This preventive measure ensures that inappropriate keyword associations are avoided from the outset, allowing item providers to associate items with keywords for visibility while maintaining search accuracy through pre-established keyword compatibility rules

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms by determining the appropriateness of keyword associations and handling inappropriate keywords through exclusion or modification. The search result generation unit provides feedback by excluding items associated with inappropriate keywords from search results, thereby maintaining search accuracy while still allowing legitimate keyword associations to enhance transaction opportunities

Inventive Principle:
Principle #23Feedback

2Productivity

If inappropriate items are extracted as search results to increase item visibility, then more items gain exposure, but user satisfaction decreases

Engineering Contradiction:
Improveitem exposureVSAvoiduser satisfaction
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system extracts and removes inappropriate items from search results through the inappropriate keyword handling process unit. By identifying items associated with inappropriate keywords and excluding them from search results, the system ensures that only appropriate items gain exposure, thereby maintaining user satisfaction while still providing broad visibility to legitimate items

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system applies local quality by treating different items differently based on their keyword associations. Items with appropriate keyword associations are included in search results and given visibility, while items with inappropriate associations are excluded. This selective approach ensures that item exposure is distributed based on quality rather than uniformly applied

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10846773B2Information processing device, information processing method, program, and storage medium
Publication Date: 2020.11.24 RAKUTEN GROUP INC
  • US10846773B2 patent drawing
  • US10846773B2 patent drawing
  • US10846773B2 patent drawing

AI summary

An information processing device includes a process target item extraction unit that refers to a database that stores keyword sets, each of the keyword sets being selected preliminarily as a combination of a plurality of search keywords unlikely to be simultaneously assigned to an identical item, performs item search on a database that stores item information using each of the search keyword belonging to one of the keyword sets, and extracts a process target item an appropriateness determination unit that determine for the extracted process target item, the determination determining a search keyword that should not be assigned to the process target item as an inappropriate keyword, among respective search keywords of the keyword set used for the extraction of the process target item and an inappropriate keyword handling process unit performs an inappropriate keyword handling process to improve a search result of item search.