Network Data Fill Selection Using Missing-Data Error Curves
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Solution Overview
Problem
The presence of missing or incomplete network data poses challenges in accurately assessing network performance and applying advanced analytics techniques, such as machine learning, due to factors like system outages or data collection issues.
Innovation Solution
A method is described that involves identifying network elements with less than a specified percentage of missing data, applying various data fill methods, calculating the percentage of missing data successfully filled and error, generating error curves, and selecting the most appropriate data fill method based on these curves to train machine learning models effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If data fill methods are applied to missing network data, then data completeness is improved, but measurement precision deteriorates due to error introduction
Solution Approach 1:
The system calculates error metrics for each data fill method and uses this feedback to select the optimal method. Error curves are generated by incrementally removing data and measuring fill accuracy, then this feedback is used to choose methods that minimize error while maximizing data completeness for machine learning training.
Solution Approach 2:
The system varies the percentage of missing data (parameter) to generate error curves that show how different fill methods perform under different missing data conditions. This allows selection of methods whose error characteristics are acceptable for the specific application's tolerance levels.
2Measurement precision
If multiple data fill methods are evaluated, then selection accuracy is improved, but device complexity increases
Solution Approach 1:
The evaluation process is segmented into discrete steps: remove a percentage of data, apply fill methods, calculate error metrics, and generate curves. This segmentation makes the complex evaluation manageable and automated through systematic iteration over different missing data percentages.
Solution Approach 2:
Error curves are pre-calculated for multiple fill methods across different missing data percentages before actual model training. This preliminary evaluation allows the system to select the best method in advance, avoiding the need for complex real-time comparisons during deployment.
Data Source
AI summary
The techniques described herein relate to a method that involves identifying a set of network elements with less than a specified percentage of missing data, removing a percentage of data to create a test data set for each network element, applying various data fill methods to the test data set to generate filled data sets, calculating the percentage of missing data successfully filled and the error between the filled data and the removed data for each data fill method, analyzing the relationships between the percentage of missing data, the percentage of successfully filled data, and the error to generate error curves for each data fill method, and selecting one or more data fill methods to apply to missing data in a network element based on the corresponding error curves.


