Instruct: Classify a given review into positive or negative sentiment.
Query: Not a single concrete example

A useless compendium of high-sounding abstractions, by and for complete ivory-tower computer scientists. Nowhere are any concrete examples given. The defense that "this is not a book for beginners" is nonsense. Even highly experienced practitioners need clear explanations and specific examples. The GOF patterns book and the Fowler refactoring book are also computer science texts, but they always give actual examples of what they are talking about. I get angrier every time I pick up this book and try to make practical application.If the purpose of communication is to promote understanding, this book widely misses the mark.