Originally published at: N-grams - Text Analytics with R | Learn Data Science
N-grams includes specific coverage of:
• Validate the effectiveness of TF-IDF in improving model accuracy.
• Introduce the concept of N-grams as an extension to the bag-of-words model to allow for word ordering.
• Discuss the trade-offs involved of N-grams and how Text Analytics suffers from the “Curse of Dimensionality”.
• Illustrate how quickly Text Analytics can strain the limits of your computer hardware.
Kaggle Dataset can be found here
The data and R code used in this series is available here