Job Profile Text Matching via PoS Tag Ratios

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Solution Overview

Problem

Current talent framework systems face challenges in managing and processing large databases of job profiles due to the imbalance between short job title texts and extensive job description texts, leading to high false positives and false negatives in matching relevant sentences, making manual management impractical and requiring advanced automated solutions.

Innovation Solution

The system employs unsupervised and semi-supervised learning processes using parts-of-speech (PoS) tag ratios to classify sentences as relevant or irrelevant, with k-means clustering and machine learning algorithms to segregate useful sentences from non-useful ones, improving text matching scores and reducing false matches.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional text matching methods are used to match job titles with job descriptions, then the process is simple to implement, but the accuracy is low with high false positives and false negatives

Engineering Contradiction:
Improvetext matching accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent transforms the text matching problem from direct string comparison to a mathematical parameter-based approach. It extracts part-of-speech (PoS) tag ratios as quantitative parameters from both job titles and job descriptions, then compares these parameters using statistical methods. This parameter transformation enables accurate matching while maintaining computational efficiency, resolving the contradiction between accuracy and complexity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces traditional mechanical text matching methods with a statistical modeling approach. Instead of relying on simple keyword matching or manual review, it uses PoS tag frequency analysis and statistical hypothesis testing to automatically determine matching accuracy. This substitution of mechanical processes with statistical computation achieves high accuracy without proportional increases in system complexity.

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

2Productivity

If manual management and review of job profile texts is performed, then the accuracy can be maintained, but the productivity is too low to handle large databases

Engineering Contradiction:
Improveprocessing throughputVSAvoidmatching accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent implements a self-service automated system that performs text matching without requiring manual intervention. The system automatically extracts PoS tags, calculates ratios, performs statistical comparisons, and generates matching results. This automation maintains high accuracy comparable to manual review while achieving the processing throughput needed for large databases, resolving the productivity-accuracy contradiction.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent introduces PoS tag ratios as an intermediary between the raw text data and the final matching decision. This intermediary parameter serves as a bridge that captures the essential semantic characteristics of job descriptions in a quantifiable form, enabling automated systems to achieve accuracy previously only attainable through manual review while processing large volumes of data efficiently.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Loss of information

If the job description text is made more extensive to provide better detail, then the information completeness improves, but the false positives increase making matching less reliable

Engineering Contradiction:
Improveinformation completenessVSAvoidmatching reliability
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The patent extracts the essential matching information from extensive job descriptions by analyzing PoS tag ratios rather than processing the entire text. This extraction method isolates the key semantic parameters that determine job-title relevance while filtering out extraneous information that would otherwise increase false positives. The approach maintains information completeness for comprehensive job descriptions while improving matching reliability through selective parameter extraction.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality analysis by focusing on specific linguistic features (PoS tag ratios) within the job description text rather than treating the entire text uniformly. This localized approach to text analysis identifies the particular linguistic patterns that indicate job-title relevance, allowing the system to handle extensive job descriptions with high information completeness while maintaining matching reliability through targeted feature extraction.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11392774B2Extracting relevant sentences from text corpus
Publication Date: 2022.07.19 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US11392774B2 patent drawing
  • US11392774B2 patent drawing
  • US11392774B2 patent drawing

AI summary

Managing a computer database having a plurality of data entries, in a talent framework system. Generate a description text field of a data entry of the computer database by classifying sentences of one or more text streams stored in a text stream corpus. The classifying is performed by identifying, for a given sentence, whether the given sentence is relevant or irrelevant to a title text field of the data entry. K-means clustering can be used, where experimental data show that k=2 produces desirable classification outcomes.