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US 2004/0172229 A1Published application
System and method for measuring quality of baseline modeling techniques
AssigneeGeneral Electric Company
InventorsJames Kenneth Aragones, Jeffrey William Stein
Life of this patent
Estimating the term…
Abstract
System, method and computer product for baseline modeling a product or process. A service database contains process data. A preprocessor processes the data into a predetermined format. A baseline modeling component builds a baseline model from the preprocessed data, wherein the baseline model relates process performance variables as a function of process operating conditions.
Claims24
A system for quantifying baseline model quality, comprising:
- an engine service database containing engine data;
- a preprocessor for processing the engine data into a predetermined format;
- an engine baseline modeling component that builds an engine baseline model from the preprocessed data, wherein the engine baseline model relates engine performance variables as a function of engine operating conditions;
- and
- a model diagnostics component that evaluates the performance of the engine baseline model, wherein the model diagnostics component includes:
- means for comparing engine data from a plurality of engines against the engine baseline model;
- means for generating engine trends for each of the plurality of engines;
- means for identifying correlations between the engine trends and various parameters;
- and
- means for calculating, for each identified correlation, summary statistics relating to the degree of correlation.
7 more elements
A system for quantifying baseline model quality, comprising:
- an engine service database containing engine data;
- a preprocessor for processing the engine data into a predetermined format;
- an engine baseline modeling component that builds an engine baseline model from the preprocessed data, wherein the engine baseline model relates engine performance variables as a function of engine operating conditions;
- and
- a model diagnostics component that evaluates the performance of the engine baseline model, wherein the model diagnostics component includes:
- means for evaluating, a subset of the engines used to create the model in time order against the generated baseline;
- means for generating time-varying system trends;
- means for plotting data points representative of the time-varying system trends over time means for fitting a smoothed curve to the plotted data points;
- and
- means for computing residual errors for each point.
7 more elements
A method for quantifying baseline model quality, comprising:
- storing engine data in an engine service database;
- processing the engine data into a predetermined format;
- building an engine baseline model from the preprocessed data, wherein the engine baseline model relates engine performance variables as a function of engine operating conditions;
- evaluating performance of the engine baseline model;
- comparing engine data from a plurality of engines against the engine baseline model;
- generating engine trends for each of the plurality of engines;
- identifying correlations between the engine trends and various parameters;
- and
- calculating, for each identified correlation, summary statistics relating to the degree of correlation.
6 more elements
A method for quantifying baseline model quality, comprising:
- storing engine data in an engine service database;
- processing the engine data into a predetermined format;
- building an engine baseline model from the preprocessed data, wherein the engine baseline model relates engine performance variables as a function of engine operating conditions;
- evaluating performance of the engine baseline model;
- evaluating a subset of the engines used to create the model in time order against the generated baseline;
- generating time-varying system trends;
- plotting data points representative of the time-varying system trends over time fitting a smoothed curve to the plotted data points;
- and
- computing residual errors for each point.
6 more elements
A computer-readable medium incorporating instructions for quantifying baseline model quality, comprising:
- one or more instructions for storing engine data in an engine service database;
- one or more instructions for processing the engine data into a predetermined format;
- one or more instructions for building an engine baseline model from the preprocessed data, wherein the engine baseline model relates engine performance variables as a function of engine operating conditions;
- one or more instructions for evaluating performance of the engine baseline model;
- one or more instructions for comparing engine data from a plurality of engines against the engine baseline model;
- one or more instructions for generating engine trends for each of the plurality of engines;
- one or more instructions for identifying correlations between the engine trends and various parameters;
- and
- one or more instructions for calculating, for each identified correlation, summary statistics relating to the degree of correlation.
6 more elements
A computer-readable medium for quantifying baseline model quality, comprising:
- one or more instructions for storing engine data in an engine service database;
- one or more instructions for processing the engine data into a predetermined format;
- one or more instructions for building an engine baseline model from the preprocessed data, wherein the engine baseline model relates engine performance variables as a function of engine operating conditions;
- one or more instructions for evaluating performance of the engine baseline model;
- one or more instructions for evaluating a subset of the engines used to create the model in time order against the generated baseline;
- one or more instructions for generating time-varying system trends;
- one or more instructions for plotting data points representative of the time-varying system trends over time one or more instructions for fitting a smoothed curve to the plotted data points;
- and
- one or more instructions for computing residual errors for each point.
6 more elements
Dependencies are inferred from the claim text.