Data Quality Over Quantity: Pitfalls and Guidelines for Process Analytics
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A significant portion of the effort involved in advanced process control, process analytics, and machine learning involves acquiring and preparing data. The published literature often emphasizes increasingly complex modeling techniques with incremental performance improvements. However, when industrial case studies are published they often lack important details on data acquisition and preparation. Although data pre-processing is often unfairly maligned as trivial and technically uninteresting, in practice it has an out-sized influence on the success of real-world artificial intelligence applications. This work describes best practices for acquiring and preparing operating data to pursue data-driven modelling and control opportunities in industrial processes. We present practical considerations for pre-processing industrial time series data to inform the efficient development of reliable soft sensors that provide valuable process insights.
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