Starting with NLP on AWS from scratch — NLP Series part 1 | by Carlos Cortez | Breaking the Cloud

Starting with NLP on AWS from scratch — NLP Series part 1 | by Carlos Cortez | Breaking the Cloud

Carlos Eduardo Cortez Bazan

Published on Apr 12, 2021

5 min read

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It would be great to start segmenting our texts as well as the cover image, which is an Open Source software called Coreference created by Hugging Face, right? Let's go in parts ...

In case you are interested in hearing about Hugging Face and SageMaker, I spoke in depth a few days ago about this topic and its recent alliance with AWS here:

The learning curve

The learning curve is long and can get complex if we want to. For that there are flows and frameworks that will help us know where we are right now.

  • Natural Language Processing (NLP) flow *

Many times we skip key steps before we really understand each of these procedures. For example, data ingestion, web scraping, text analytics, EDA (exploratory analysis, and much more)

Remember CRISP-DM?

It is a framework for data mining, which is now known more as Machine Learning, Deep Learning, Data Science, etc.

Essentials to get started on AWS

Always to each place we go, we keep this pair in our pocket:

  • Python 3.x + boto3 *

Boto3 , is the AWS python library that will give us access to run and manage any resource within the cloud, as simple as import boto3, and have your private keys configured or your roles correctly created .

Pre-trained models

Pre-trained models help us to shorten research, training and analysis time, and not start inventing what already exists. and for this we can use cloud services.

Amazon Comprehend (Applied NLP) , It is a SaaS type service, which means that it is ready to consume an API with the AWS boto3 library and begin to obtain insights from the data. It contains models already trained by Amazon Web Services, which we can reuse to start our own, and we will start knowing this great service and start building interesting applications using other AWS services.

Hugging Face (advanced) , later we will play with transformers, tokenizers, and more with these Deep Learning models of Hugging Face.

Build your own models:

Once we have a good understanding of NLP's self-managed cloud services, we can move to the next level with Amazon Sagemaker.

Or, with your own containers, which we will also learn, or locally

NLP Open Source Libraries

I will mention these for now and we will surely know more than 2 of this list in the coming months:

  • NLTK

  • Spark NLP

  • CoreNLP

  • SpaCy

  • Pytorch

  • Tensorflow

  • etc..

Tools and IDEs

From now on we will begin to know and learn step by step, what it is like to work in the cloud with an IDE for Data Science, and learn about AI services on AWS.

I recommend taking a look at the following, some paid and some free.

  1. Sagemaker Studio / Sagemaker Notebooks

  2. Jupyter Notebooks / Jupyter Lab

  3. Databricks

  4. Google Colab

  5. among others ...

To start for free, I suggest Databricks and Colab , the first one, has a community platform that allows you to create free clusters and they are eliminated if you do not use it for limited times, and Google's Colab, you can run it directly on your Google Drive, at no cost.

Deployment of my models in the cloud

It is not yet time to think about deploying, and yes, we will find many, many ways to do it, from the oldest to the most modern.

  • Traditional servers (VMs, Bare Metal)

  • Containers (such as AWS ECS, EKS, Fargate)

  • Without Servers (Functions as a Service)

This is a very good way to start, putting together serverless and Sagemaker.

Think Serverless First

Now we can start working without having to run servers using AWS Lambda, AWS Step Functions, Sagemaker Pipelines, AWS CodePipeline, which are services already deployed in the cloud that we can use to speed up our development and start-up.

In the following posts we learn how to deploy with AWS Lambda and Amazon Comprehend.

Amazon Comprehend and its superpowers

Can you imagine something as simple as writing a few lines of code to create a word detector and phrase extraction in just a few minutes instead of many hours of research? It is possible if you start to take advantage of Amazon Comprehend, a little Python and a couple of drops of Serverless

Phrase extraction:

We are using Python 3.6 here with boto3, the library

response **=** client**.**detect_key_phrases(

Text=’string’,

LanguageCode=’en’|’es’

)

Extraction of Entities, sentiment, language, syntax, topics, and document classification, are some of the additional things that we are going to do with Comprehend, as well as a specific version for Medicine, called Amazon Comprehend Medical

What do we continue with?

Data ingestion and text Analytics is part of the important bases to understand NLP, so in the next post, we will start to build our first data ingestion of a web, to be able to obtain data, texts, titles, in a data frame to play.

Next post: (on air on April 02)

(Post Original: Medium and Dev.cortez.cloud )

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