TF-IDF - Introduction to Text Analytics with R

Explore advanced text analytics techniques in this 33-minute video tutorial focusing on TF-IDF (Term Frequency-Inverse Document Frequency). Learn how to improve document-term frequency matrix representation by addressing unequal document lengths and common terms across documents. Discover the power of TF-IDF for implementing these improvements, with TF handling document length variations and IDF managing frequently occurring terms. Gain hands-on experience implementing TF-IDF using R functions, applying it to document-term frequency matrices, and performing post-weighting data cleaning. Access accompanying data and R code for practical application, and delve into topics such as term frequency, inverse document frequency, environment setup, function combination, transformation, calculation, and testing.

Introduction
Term Frequency
Inverse Document Frequency
TFIDF
Setting up the environment
Combining the functions
Transform
Calculate
Transpose
Testing