Federated Random-Forest Model Generation for Mobile Intrusion Detection

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Solution Overview

Problem

The rapid increase in network attack events and intrusion behaviors against mobile terminals necessitates an accurate method for detecting intrusion-type data in mobile networks.

Innovation Solution

A model generation method involving a first device that receives and determines a target model based on k-th layer sub-models, and a second device that sends and receives these sub-models to detect intrusion-type data, utilizing random forests and completely random forests for enhanced security and accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional detection methods are used, then the detection process is simple, but the detection accuracy is insufficient面对rapid increase in network attack events

Engineering Contradiction:
Improvedetection accuracyVSAvoiddetection system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The detection system is segmented into multiple independent sub-models, each responsible for detecting specific types of intrusion behaviors. Each sub-model can be trained and updated independently on local data, then aggregated to form a comprehensive target model. This segmentation enables high detection accuracy across diverse attack types while keeping individual model components relatively simple.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple sub-models from different devices or systems are merged through federated learning to create a unified target model. The merging process combines the strengths of individual sub-models without requiring centralized data collection, achieving superior detection accuracy while maintaining system architecture simplicity through distributed computation.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If centralized training is used, then the training process is simple, but the risk of label inference attacks increases

Engineering Contradiction:
Improvesecurity against label inference attacksVSAvoidtraining process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The training process extracts computational tasks from a centralized location and distributes them to multiple edge devices. Each device performs local training on its own data without exposing raw data or model parameters to a central server. This extraction of training operations to distributed devices eliminates the centralized data collection vulnerability while maintaining training effectiveness through local computation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

An intermediary aggregation mechanism coordinates the federated learning process by collecting model updates from multiple devices and generating the target model without accessing individual device data. This intermediary layer enables secure collaboration between devices, achieving reliable security against label inference attacks while managing training process complexity through automated aggregation operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If more sub-models are aggregated, then the detection accuracy improves, but the model generation complexity increases

Engineering Contradiction:
Improvedetection accuracyVSAvoidmodel generation complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system employs self-service mechanisms where devices automatically generate sub-models using their own local data and computational resources without requiring manual intervention. The aggregation process is automated, with the system automatically combining sub-models into the target model. This self-service approach improves detection accuracy through multiple sub-models while reducing model generation complexity by eliminating manual configuration and intervention requirements.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250220433A1Model generation method, information processing method, and device
Publication Date: 2025.07.03 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US20250220433A1 patent drawing
  • US20250220433A1 patent drawing
  • US20250220433A1 patent drawing

AI summary

A model generation method, an information processing method, devices, and a computer-readable storage medium are provided. The model generation method includes the following. A first device receives one or more k-th layer sub-models, where k is a positive integer. The first device determines a target model based on the one or more k-th layer sub-models, where the target model is used for detecting whether communication data from a mobile network is intrusion-type data. The first device sends the target model.