Transcription of 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 26 The 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.
1987), states that a difference in linguistic form is always associated with some dif-ference in meaning. For example, the word H 2O is used in scientific contexts and would be inappropriate in a hiking guide—water would be more appropriate— and this genre difference is part of the meaning of the word. In practice, the word syn-
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