Text Filtering Index Based on Target Character Extraction
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Solution Overview
Problem
Existing junk text information filtering technologies have low accuracy and efficiency due to the inability to effectively filter out junk information when malicious users add large numbers of characters or punctuation, and they fail to filter content from whitelisted users even if it contains junk information.
Innovation Solution
A method and apparatus that extract target characters from text information based on a predetermined rule, calculate a filtering index, and execute an operation when the index meets a predetermined condition, improving the filtering accuracy and efficiency by identifying and processing junk text information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If keyword-based filtering method is used, then filtering operation is simple, but filtering accuracy deteriorates because malicious users can add characters or punctuation to avoid keywords
Solution Approach 1:
The patent changes the filtering parameter from simple keyword matching to a comprehensive filtering index that considers multiple factors including character ratios, punctuation density, and text entropy. This allows the system to detect junk information even when keywords are obfuscated by added characters or punctuation.
2Adaptability or versatility
If blacklist and whitelist filtering method is used, then user-specific filtering is implemented, but filtering accuracy deteriorates because text from whitelisted users is not filtered even if it contains junk information
Solution Approach 1:
The patent implements a dynamic filtering mechanism where the filtering index is calculated for each text message independently, regardless of the sender's whitelist status. The system dynamically adjusts filtering decisions based on the calculated index, allowing it to filter junk information from whitelisted users while maintaining adaptability to different user contexts.
3Speed
If traditional filtering methods are used, then processing speed is maintained, but productivity deteriorates because junk information cannot be effectively filtered requiring manual intervention
Solution Approach 1:
The patent performs preliminary calculation of the filtering index for all incoming text messages before final delivery or display. This preliminary action enables automatic filtering decisions to be made in advance, improving productivity by eliminating the need for manual intervention while maintaining high processing speed through efficient index calculation algorithms.
Data Source
AI summary
A method for processing text information is provided, the method including: obtaining text information and extracting text characters contained in the text information; extracting, from the text characters, target characters satisfying a predetermined rule; calculating a filtering index of the text information according to the target characters; and when the filtering index meets a predetermined condition, executing an operation corresponding to the predetermined condition on the text information. In addition, an apparatus for processing text information is further provided. The method and apparatus for processing text information can improve the accuracy and efficiency of filtering out junk text information.