Grammatical Context Detection for Text Attribute Extraction

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Solution Overview

Problem

Existing text mining techniques require significant user input or training data for accurate extraction of attribute values from unstructured text, and often fail to capture valid attribute values, especially in unstructured data, due to their dependency on classification methods that may ignore relevant information.

Innovation Solution

A computer-implemented method and system that uses grammatical context detection techniques to extract attribute values from text data by associating part-of-speech tags, identifying attribute descriptors using approximate text matching, and parsing tagged information files to determine attribute descriptors without the need for training data, making it domain-independent and applicable to both structured and unstructured text.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If classification techniques are used to extract attribute values from text data, then extraction accuracy may be improved in some cases, but relevant data may be ignored or lost

Engineering Contradiction:
Improveattribute extraction accuracyVSAvoidvalid attribute values
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent introduces grammatical context as an intermediary mechanism between the text data and attribute extraction process. Part-of-speech tagging and grammatical analysis serve as mediators that identify potential attribute values without pre-classifying the entire text, thereby preserving valid values that classification methods might discard.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system enables the text data itself to identify its own attribute values through inherent grammatical structures. By analyzing part-of-speech tags and grammatical context within the text, the method allows the data to self-identify relevant attributes without external classification imposition, reducing information loss.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If supervised machine-learning methods are used for text mining, then extraction accuracy may be improved, but significant user input or training data is required

Engineering Contradiction:
Improveextraction accuracyVSAvoidtraining data requirement
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical system of supervised machine-learning training with a linguistic analysis approach. Instead of requiring extensive training data and user input to teach the system, it uses grammatical context detection and part-of-speech tagging—natural language processing techniques that inherently understand text structures without training.

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

Solution Approach 2:

The method allows the text processing system to automatically determine attribute values through grammatical analysis without requiring external training or user guidance. The system serves itself by utilizing the inherent grammatical structures present in the text data.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If domain-specific classification methods are used, then extraction accuracy for specific domains may be improved, but the solution becomes less adaptable to other domains

Engineering Contradiction:
Improvedomain-specific extraction accuracyVSAvoiddomain independence
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent creates a universal attribute extraction method based on grammatical context that can function across multiple domains. By relying on fundamental linguistic structures (part-of-speech tags, grammatical relationships) rather than domain-specific patterns, the system achieves multi-functionality and adaptability to different text domains while maintaining extraction accuracy.

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

Data Source

PatentUS9934218B2Systems and methods for extracting attributes from text content
Publication Date: 2018.04.03 INFOSYS LTD
  • US9934218B2 patent drawing
  • US9934218B2 patent drawing
  • US9934218B2 patent drawing

AI summary

Systems and method for extracting attributes from text content are described. Example embodiments may include a computer implemented method for extracting attributes from text data, wherein the text data is obtained from at least one information source. As described, the implementation may include receiving, from a user, an address for the at least one information source and an attribute name, creating a tagged information file by associating a part of speech tag to text data obtained from the at least one information source, identifying a location of the attribute name in the tagged information file using an approximate text matching technique and determining at least one attribute descriptor from the tagged information file wherein the tagged information file is parsed based on a part of speech tag associated with the attribute name to determine a conclusion of the attribute descriptor.