Chapter 10 covered the first component of a conversational system: speech-to-text (STT). Now it's time for step 2: natural language processing (NLP) and natural language understanding (NLU). If Chapter 10 focused on recognizing and understanding what a user said, this chapter focuses on what those words mean, as NLU takes the STT representation and interprets the intended meaning behind those words to determine how to respond. Here, you learn what “meaning” means to a voice system, why it’s not a solved topic, and how to reach the best result anyway.
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