A computer cannot understand language if it has no knowledge of the world. Allen explores how to encode facts and relationships into a machine-readable format. This includes discussions on scripts, frames, and conceptual dependency theory, which allow a program to infer context.
Perhaps the most challenging section of the book deals with context. It asks questions like: How does a machine know that "it" refers to the rain in the sentence "It is raining"? This moves beyond sentence-level analysis to understanding conversations and extended texts. natural language understanding james allen pdf free download
You can download James Allen's book "Natural Language Understanding" in PDF format for free from various online sources. Here are a few options: A computer cannot understand language if it has