In this tutorial series on Introduction to Text Analytics with R, we will discuss Latent Semantic Analysis by leveraging irla package in R to singular value decomposition.
What You'll Learn
> Use of the irlba package to perform truncated SVD.
> How to project a TF-IDF document vector into the SVD semantic space (i.e., LSA).
> Comparison of model performance between a single decision tree and the mighty random forest.
> Exploration of random forest tuning using the caret pack age.
Text Analytics Tutorial slides can be accessed here
Download R here
SMS Spam Collection Dataset used in this tutorial can be accessed here
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