We are excited to announce that the article 'The effects of data quality on machine learning performance on tabular dataI' has been published in the well known journal 'Information Systems'.
Authors
Sedir Mohammed (Hasso Plattner Institute), Lukas Budach (Hasso Plattner Institute), Moritz Feuerpfeil (Hasso Plattner Institute), Nina Ihde (Hasso Plattner Institute), Andrea Nathansen (Hasso Plattner Institute), Nele Noack (Hasso Plattner Institute), Hendrik Patzlaff (Hasso Plattner Institute), Felix Naumann (Hasso Plattner Institute), Hazar Harmouch (University of Amsterdam)
Abstract
Modern artificial intelligence (AI) applications require large quantities of training and test data. This need creates critical challenges not only concerning the availability of such data, but also regarding its quality. For example, incomplete, erroneous, or inappropriate training data can lead to unreliable models that produce ultimately poor decisions. Trustworthy AI applications require high-quality training and test data along many quality dimensions, such as accuracy, completeness, and consistency.
We explore empirically the relationship between six data quality dimensions and the performance of 19 popular machine learning algorithms covering the tasks of classification, regression, and clustering, with the goal of explaining their performance in terms of data quality. Our experiments distinguish three scenarios based on the AI pipeline steps that were fed with polluted data: polluted training data, test data, or both. We conclude the paper with an extensive discussion of our observations.
