In this last part of the book, we focus on applying some of the concepts that we’ve developed throughout the book. Part 3 consists of two chapters: the first on intelligent search, and the second on building a recommendation engine.
Chapter 11 on intelligent search should give you a good overview of embedding search into your application using Lucene, along with some discussion of trends in the area of intelligent search. Chapter 12 deals with building a recommendation engine using both content-based and collaborative-based approaches. We also go through real-world case studies of personalization by Amazon, Google News, and Netflix.