Personal Information Detection via Multi-Stage Filtering and Model Update

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Solution Overview

Problem

Supervised learning models can produce incorrect predictions for input data that can be clearly distinguished, leading to inaccurate personal information detection.

Innovation Solution

A personal information detection reinforcement method using multiple filtering, which involves first filtering input data using record and pattern data, classifying it with a supervised learning model, performing second filtering using an unsupervised-based algorithm, and updating the model based on the filtered results to improve prediction accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If supervised learning model is used for personal information detection, then classification can be performed based on learned patterns, but wrong predictions occur even for clearly distinguishable input data

Engineering Contradiction:
Improveclassification capabilityVSAvoidprediction accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The detection system is segmented into multiple independent filtering stages: first filtering using record data and pattern data, then supervised learning classification, followed by second filtering using unsupervised algorithms. Each segment handles specific aspects of detection, preventing single-point failures and improving overall accuracy through distributed decision-making.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Two filtering mechanisms are introduced as intermediaries between raw input and final classification. The first filter preprocesses data using record and pattern matching, while the second filter post-processes results using unsupervised algorithms. These intermediaries mediate between the supervised learning model and input data, correcting errors and improving prediction accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If multiple filtering stages are applied to improve prediction accuracy, then wrong predictions are corrected, but processing time and system complexity increase

Engineering Contradiction:
Improveprediction accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The first filtering stage performs preliminary action by preprocessing input data using record data and pattern data before the supervised learning model processes it. This preliminary filtering removes obvious cases and prepares data in advance, reducing the burden on subsequent stages and improving overall efficiency despite added complexity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the second filtering stage uses unsupervised algorithms to analyze the outputs of the supervised learning model and identify incorrect predictions. This feedback loop continuously corrects errors and improves prediction accuracy, justifying the increased system complexity through enhanced reliability.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If multiple filtering stages are applied to improve prediction accuracy, then wrong predictions are corrected, but processing time increases

Engineering Contradiction:
Improveprediction accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system applies partial filtering action by using the first filter to handle obvious cases using record and pattern data, allowing the supervised learning model to focus on more complex cases. This partial application of filtering reduces unnecessary processing time while maintaining high accuracy for clearly distinguishable inputs.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

Different filtering stages apply different levels of processing quality to different types of input data. The first filter applies rapid pattern matching for simple cases, while the supervised learning model and second filter provide more thorough analysis for complex cases. This local quality adjustment optimizes processing time by avoiding excessive filtering for already-clear cases.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20230222348A1Personal information detection reinforcement method using multiple filtering and personal information detection reinforcement apparatus using the same
Publication Date: 2023.07.13 AHNLAB CLOUDMATE INC
  • US20230222348A1 patent drawing
  • US20230222348A1 patent drawing
  • US20230222348A1 patent drawing

AI summary

Disclosed are a personal information detection reinforcement method using multiple filtering and a personal information detection reinforcement apparatus using the same. The personal information detection reinforcement method includes performing first filtering of input data using record data and pattern data, classifying a class of the first-filtered input data using a previously constructed supervised learning model, performing second filtering of the first-filtered input data using an unsupervised-based algorithm based on the classified class, and updating the supervised learning model based on the second-filtered result data.