December 2015
Intermediate to advanced
176 pages
3h 25m
English
Content preview from Elasticsearch IndexingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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What's text normalization?
Text normalization is the process of transforming text into a common form. That is necessary in order to remove insignificant differences among identical words.
Let's look at déjà-vu word to handle.
The word deja-vu is not equal to déjà-vu for string comparison. Even Déjà-vu is not equal to déjà-vu. Similarly, Michè'le is not equal to Michèle. All these words (that is, tokens) are not equal because the comparison is made at the byte-level by Elasticsearch. This means, for two tokens to be considered the same, they need to consist of exactly the same bytes when these tokens are compared.
However, these words have similar meanings. In other words, the same thing is being sought when a user is searching for the word déjà-vu ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.