Mastering Precision in Pivotal Variables Defining Wine Quality via Incremental Analysis of Baseline Accuracy

This study investigates the application of machine learning (ML) algorithms to enhance the precision of wine quality assessment, focusing specifically on Portuguese red wine. Amidst the growing interest in leveraging artificial intelligence (AI) for sensory analysis, our research distinguishes itself by employing a rigorous methodological framework. Our approach, named the ‘Incremental Analysis of Baseline Accuracy,’ identifies the chemical variables most predictive of wine quality. This framework aims to streamline the predictive process by pinpointing key variables that significantly influence quality assessments. In this paper, we demonstrate the feasibility of a methodology that precisely determines the criticality of chemical inputs, both their exact values and their correct order, to identify which inputs significantly contribute to the quality assessment of a sensory perception, such as taste. The centerpiece of our paper is a vibrant 3D pie chart that illustrates the percentage criticality of different input variables for perceiving the quality of red wine. This chart symbolizes the essence of our paper: a ‘pie’ representing the empirical conclusion, not mere conjecture. Through this paper, we have shown that it is possible to quantify a qualitative, perceptual aspect like taste perception, which is often believed to be assessable only through subjective conjecture. Moreover, our findings, facilitated by the Incremental Analysis of the Baseline Accuracy method, demonstrate that this perception can be systematically quantified, challenging traditional assumptions about sensory analysis.