Extracting Underlying Topics with Latent Dirichlet Allocation (LDA) in Python Text Analysis

Using Regular Expressions in R for String Matching with Example Use Cases and Code Snippets

Removing Emoticons from R Data Using the tm Package: A Step-by-Step Guide

Based on the provided specification, I'll write a complete R function that transforms a tdm matrix into a new matrix with an additional column representing the class of each term.

Understanding the Issue with tm_map on Text Data: A Solution Guide for Character Objects