Machine Learning Model Training Using Selected Time-Series Segments

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Solution Overview

Problem

Current data-driven decision-making processes are often time-consuming and require large datasets for training machine learning models, which can be impractical in applications with limited data availability and the need for rapid response times.

Innovation Solution

A procedure for training machine learning models that selects specific parts of data combined with classification data units, allowing for improved decision-making quality, reduced data requirements, and automated processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional machine learning training uses large datasets with thousands of data sets, then model accuracy is improved, but training time becomes excessively long and the process becomes impractical for rapid decision-making

Engineering Contradiction:
Improvedecision-making accuracyVSAvoidtraining time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent extracts and utilizes domain knowledge and expert rules to pre-process and filter training data, removing the need to train on all raw data. This extraction of essential patterns allows the model to achieve high accuracy with significantly fewer training examples, directly resolving the contradiction between accuracy and training time.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system performs preliminary actions by pre-defining classification categories, expert rules, and data filtering criteria before training begins. This preliminary structuring of knowledge allows the machine learning model to focus learning on fewer, more relevant examples, reducing training time while maintaining accuracy.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If comprehensive datasets are used for training, then model reliability is improved, but data availability becomes limited in many practical applications

Engineering Contradiction:
Improvemodel reliabilityVSAvoiddata availability
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent changes the parameters of the training approach by incorporating domain-specific knowledge and expert rules as additional training signals. This allows the model to achieve reliable performance with smaller datasets by augmenting limited data with structured domain knowledge, effectively resolving the contradiction between reliability and data quantity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system creates a composite training approach that combines limited empirical data with structured domain knowledge and expert rules. This composite training methodology enables the model to achieve reliability comparable to training on large datasets, even when data availability is limited.

Inventive Principle:
Principle #40Composite materials

3Measurement precision

If specialized analysis tools are developed for monitoring systems, then measurement precision is improved, but device complexity and adaptation effort increase significantly

Engineering Contradiction:
Improvemonitoring precisionVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a universal machine learning framework that can handle multiple monitoring tasks and decision-making scenarios through a single system. By using general-purpose machine learning algorithms combined with domain knowledge, the system achieves specialized monitoring precision without requiring separate complex tools for each application, thus resolving the contradiction between precision and complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Adaptability or versatility

If machine learning models are trained extensively, then adaptability to different use cases is improved, but training resources and time requirements increase

Engineering Contradiction:
Improvemodel adaptabilityVSAvoidtraining time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent segments the training process into distinct phases: data preprocessing with domain knowledge, model training on filtered data, and deployment. This segmentation allows the model to be efficiently trained for specific applications without requiring extensive retraining, achieving adaptability while reducing training time through the modular approach.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4034955B1Training of machine learning models for data-driven decision-making
Publication Date: 2025.04.23 ROLLS ROYCE DEUT LTD & CO KG
  • EP4034955B1 patent drawingFigure 1
  • EP4034955B1 patent drawingFigure 2~3
  • EP4034955B1 patent drawingFigure 4

AI summary

The invention relates to a method for training machine learning models (51), having the steps of: detecting (S10) data (70) in the form of time series data using one or more computers (52), said data being obtained by means of one or more measuring devices (60-62), in each case in the form of a sensor for measuring a physical variable; receiving (S12) multiple classification data units relating to the data (70) using the one or more computers (52); receiving (S13) a selected part (71) of the data (70) using the one or more computers (52) for each of the classification data units; and training (S14) multiple machine learning models (51) using the one or more computers (52), in each case on the basis of at least one of the classification data units and the at least one corresponding selected part (71) of the data, wherein the multiple machine learning models (51) represent multiple instances of the same machine learning model.