November 2018
Beginner to intermediate
182 pages
4h 48m
English
Content preview from Natural Language Processing with Python Quick Start Guide
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Text Representations - Words to Numbers
Computers today cannot act on words or text directly. They need to be represented by meaningful number sequences. These long sequences of decimal numbers are called vectors, and this step is often referred to as the vectorization of text.
So, where are these word vectors used:
- In text classification and summarization tasks
- During similar word searches, such as synonyms
- In machine translation (for example, when translating text from English to German)
- When understanding similar texts (for example, Facebook articles)
- During question and answer sessions, and general tasks (for example, chatbots used in appointment scheduling)
Very frequently, we see word vectors used in some form of categorization task. ...
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