5.7 Brief Discussion of Performance and Possible Relationship with Sentiment.5.6.2 Negative Correlation Between alpha_book and sp500.5.6 Correlation of Performance Measures.5.4 Distinction Between Absolute and Relative Performance.5.3 How Buffett Measured His Own Perfomance Over Time.5.2 A Little Background on Buffett’s Choice of Perfomance Metrics.5.1 Measures of Berkshire’s Performance.5 Importing and Processing of Performance Data.4.8.1 Correlation Analysis of Sentiment Lexica. 4.7.3 Loughran-McDonald Sentiment Lexicon.4.7 Creating Sentiment Data for Berkshire Letters by Year.4.5 Toy Example of Calculation of Sentiment.4.4 Limitations with “Bag of Words” Approach.3.6 Resulting dataframe for Further Analysis.3.5.1 Text Normalization - Stemming and Lemmatization.3.1 Roadmap for Tokenization, Text Cleaning and Normalization.3 Tokenization, Text Cleaning and Normalization.2.3 Importing text files to a dataframe.2 Data Acquisition (Text extraction and pre-processing).1.5 The Corpus to be Used in this Project.1.1 tl dr Otherwise Known as an Executive Summary.
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