Publications by Gabriel Santos

Data Science in Context presentation

2022-11-05 Sentiment analysis with tidy data When human readers approach a text, we use our understanding of the emotional intent of words to infer whether a section of text is positive or negative, or perhaps characterized by some other more nuanced emotion like surprise or disgust. One way to analyze the sentiment of a text is to consider the ...

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DATA605 Week 12 Discussion Board

Using R, build a multiple regression model for data that interests you. Include in this model at least one quadratic term, one dichotomous term, and one dichotomous vs. quantitative interaction term. Interpret all coefficients. Conduct residual analysis. Was the linear model appropriate? Why or why not? Data Set: the salary data used in Weis...

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