Here are some example Google N-gram Viewer queries that I used while researching the NLP in Action book, including one to decide how to spell “n-gram” ;)

Queries

• Which should the acronym “LDA” refer to? Linear Discriminant Analysis,Latent Dirichlet Allocation

• Best spelling for “TF-IDF”? TF-IDF,TFIDF,tfidf

• Trends in AI & NLP research? AI,Artificial Intelligence,NLP,Bot,Machine Learning,finite state,syntax,Logic