Wine Ratings: Seeking a Consensus among Tasters via Normalization, Approval, and Aggregation

Significance of Wine Tasters’ Binary Judgments

The purpose of this article is to assess the reliability and accuracy (validity) of 9 hypothetical binary tasting judgments in an enological framework. The model that is utilized 10 allows for the control of a wide array of variables that would be exceedingly difficult to fully 11 control in the typical enological investigation. It is shown that results that are judged to be 12 enologically sig...

Simply Predicting Wine Review Ratings

Measuring consensus in a preference-approval context

We consider measuring the degree of homogeneity for preference-approval profiles which include the approval information for the alternatives as well as the rankings of them. A distance-based approach is followed to measure the disagreement for any given two preference-approvals. Under the condition that a proper metric is used, we propose a measure of consensus which is robust to some extension...

Consensus and Volatility in Presidential Approval

One of the central themes in research, teaching, and popular commentary about American politics is the power of the Presidency. This is no surprise, since American domestic politics and policymaking, and even many decisions on the world stage, rotate about the axis of the U.S. president. Presidential approval plays a particularly critical role in presidential power, as ample studies have demons...

Predicting wine ratings using linear models

In this paper I analyze reviews taken from a popular wine review website. I use linear regression to tune a model suited for predicting wine ratings. I compare a two models and select the best one with the best parameters using k fold cross validation. The results indicate that better predictions come from using more of the features, rather than less of them. This suggests that both the age of ...