Browsing by Subject "confidence calibration"
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(2022)In this thesis, we give an overview of current methodology in the field of uncertainty estimation in machine learning, with focus on confidence scores and their calibration. We also present a case study, where we propose a novel method to improve uncertainty estimates of an in-production machine learning model operating in an industrial setting with real-life data. This model is used by a Finnish company Basware to extract information from invoices in the form of machine-readable PDFs. The solution we propose is shown to produce confidence estimates, which outperform the legacy estimates on several relevant metrics, increasing coverage of automated invoices from 65.6% to 73.2% with no increase in error rate.
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