Dynamic Dictionary Creation via Keyword Assessment
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Solution Overview
Problem
Conventional dictionary creation methods fail to adapt to changes in text information groups, leading to outdated keyword lists that do not reflect current trends or changes in content, such as shifts in popularity of actors, events, or broadcasting trends.
Innovation Solution
A dictionary creation device that includes a keyword extraction unit, statistics unit, assessment value calculation unit, determination unit, and registration/deletion unit to dynamically update keywords based on their appearance frequency and relevance, ensuring the dictionary remains optimal and accurate over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed dictionary is created from sample data, then the dictionary structure is stable and easy to maintain, but it cannot reflect changes in text information groups over time
Solution Approach 1:
The patent implements a dynamic dictionary creation method that automatically updates keywords based on their appearance frequency in text information groups. The system calculates assessment values for keywords and dynamically adds or removes keywords from the dictionary based on predetermined thresholds, allowing the dictionary to adapt to changes in text information while maintaining a structured approach through automated rules.
2Reliability
If manual dictionary updates are performed, then the dictionary can be customized, but it requires significant time and human resources
Solution Approach 1:
The patent implements a self-service dictionary maintenance system that automatically monitors keyword appearance frequencies in text information groups, calculates assessment values, and performs additions or removals of keywords based on predetermined thresholds. This automated process eliminates the need for manual dictionary updates while maintaining high accuracy through systematic assessment criteria.
3Quantity of substance
If all extracted keywords are registered in the dictionary, then the dictionary is comprehensive, but it includes unnecessary keywords that reduce searching efficiency
Solution Approach 1:
The patent applies local quality by differentiating keyword importance through assessment values based on appearance frequency. Instead of treating all keywords equally, the system identifies and registers only those keywords that meet predetermined thresholds for importance, thereby maintaining dictionary comprehensiveness while excluding unnecessary keywords that would reduce searching efficiency.
Data Source
AI summary
A dictionary creation device and dictionary creation method are provided which optimally create and update a dictionary for classifying, searching, or extracting text information in accordance with a changes in content of text information groups. The dictionary creation device includes a keyword extraction unit that extracts a keyword from inputted text information and a keyword statistics unit that finds statistics regarding an appearance of the keyword. The dictionary creation device further includes a keyword assessment value calculation unit that calculates an assessment value of the extracted keyword based on the statistics regarding the appearance of the keyword, a determination unit that determines whether or not to register or delete the keyword based on the calculated assessment value, a dictionary registration and deletion unit which registers or deletes the keyword in or from a dictionary database based on a result of the determination performed by the determination unit, and the dictionary database.