Automatic Junk File Identification via Attribute Matching

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Solution Overview

Problem

The existing manual method for identifying junk files on smart terminal devices is inefficient and costly, leading to incomplete clearance and decreased device performance.

Innovation Solution

A method and device that automatically identify junk files by acquiring attribute information of application files through static and dynamic analysis, matching it with preset junk file identification rules, and recognizing files as junk based on predefined criteria.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual identification method is used, then identification accuracy can be maintained through human judgment, but identification efficiency is low and time consumption is high

Engineering Contradiction:
Improveidentification efficiencyVSAvoidtime consumption
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system enables automatic identification of junk files through self-service mechanisms. The analysis module automatically analyzes application files, and the identification module automatically compares file attributes with preset rules to identify junk files without requiring continuous human intervention, thereby significantly improving identification efficiency and reducing time consumption.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical identification process with an automated electronic system. The analysis module and identification module work together to automatically analyze files, extract attributes, compare them with preset rules, and identify junk files, substituting human manual operations with automated computational processes that are faster and more efficient.

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

2Reliability

If manual identification method is used, then complex judgment can be performed, but identification cost is high and completeness is poor

Engineering Contradiction:
Improveidentification completenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The identification system is segmented into distinct functional modules: an analysis module that extracts file attributes, and an identification module that compares attributes with preset rules. This segmentation allows each module to specialize in specific tasks, improving identification completeness while managing system complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces preset junk file identification rules as an intermediary between the analysis module and the final identification result. These rules serve as a standardized criterion that the analysis module uses to objectively determine whether files are junk files, improving identification completeness and consistency without requiring complex human judgment for each file.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If automatic identification is implemented, then efficiency is improved and cost is reduced, but requires development of analysis module and preset rules

Engineering Contradiction:
Improveidentification efficiencyVSAvoidsystem development complexity
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent employs preliminary action by establishing preset junk file identification rules before the actual identification process begins. These pre-defined rules contain common patterns and characteristics of junk files, allowing the system to efficiently identify junk files without requiring complex real-time analysis, thereby reducing development complexity while maintaining high efficiency.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10318479B2Method and device for automatically identifying junk file
Publication Date: 2019.06.11 BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO LTD
  • US10318479B2 patent drawing
  • US10318479B2 patent drawing

AI summary

A computer-implemented method and device for automatically identifying a junk file are provided. The method for automatically identifying a junk file includes: acquiring an application to be identified; analyzing the application so as to acquire attribute information of a file generated by the application; matching the attribute information of the file and a preset junk file identification rule; and identifying the file as a junk file if the attribute information of the file is matched with the preset junk file identification rule.