CHAPTER Vector Semantics and Embeddings

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Speech and Language Processing. Daniel Jurafsky & James H. Martin. Copyright 2021. Allrights reserved. Draft of December 29, Semantics andEmbeddings Nets are for fish;Once you get the fish, you can forget the net. Words are for meaning;Once you get the meaning, you can forget the words (Zhuangzi), CHAPTER 26The asphalt that Los Angeles is famous for occurs mainly on its freeways. Butin the middle of the city is another patch of asphalt, the La Brea tar pits, and thisasphalt preserves millions of fossil bones from the last of the Ice Ages of the Pleis-tocene Epoch. One of these fossils is theSmilodon, or saber-toothed tiger, instantlyrecognizable by its long canines. Five million years ago or so, a completely differentsabre-tooth tiger calledThylacosmiluslivedin Argentina and other parts of South Amer-ica. Thylacosmilus was a marsupial whereasSmilodon was a placental mammal, but Thy-lacosmilus had the same long upper caninesand, like Smilodon, had a protective boneflange on the lower jaw.

et al.,2015) gives values on a scale from 0 to 10, like the examples below, which range from near-synonyms (vanish, disappear) to pairs that scarcely seem to have anything in common (hole, agreement): vanish disappear 9.8 belief impression 5.95 muscle bone 3.65 modest flexible 0.98 hole agreement 0.3

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