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NLP, Textual Data Science, Sentiment Analysis

The aim is to learn about NLP together. Everyone is welcome to contribute to the blog.

Useful blog posts and articles on NLP, sentiment analysis, and anything related.

A repo for NLP and sentiment analysis datasets, lexicons, and tools. (currently in progress – updates soon)

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Latest From Blog

Wordcount vs TF.IDF for Text Processing

<img loading="lazy" decoding="async" width="1408" height="914" src="https://sentimentr.com/wp-content/uploads/2020/06/undraw_Data_points_ubvs-1.png" class="attachment-full size-full wp-post-image lazyload lazyload" alt="Wordcount vs TF.IDF for Text Processing" itemprop="image" srcset="https://sentimentr.com/wp-content/uploads/2020/06/undraw_Data_points_ubvs-1.png 1408w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_Data_points_ubvs-1-300x195.png 300w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_Data_points_ubvs-1-1024x665.png 1024w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_Data_points_ubvs-1-768x499.png 768w" sizes="(max-width: 1408px) 100vw, 1408px" />

machine learning

Wordcount vs TF.IDF for Text Processing

In this post, we will briefly highlight and demonstrate the difference between using wordcounts and tf.idf values to create features…

Constructing an Ensemble of Supervised Classifiers for Sentiment Analysis

<img loading="lazy" decoding="async" width="1104" height="947" src="https://sentimentr.com/wp-content/uploads/2020/06/undraw_cloud_docs_p4ob-2.png" class="attachment-full size-full wp-post-image lazyload lazyload" alt="Constructing an Ensemble of Supervised Classifiers for Sentiment Analysis" itemprop="image" srcset="https://sentimentr.com/wp-content/uploads/2020/06/undraw_cloud_docs_p4ob-2.png 1104w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_cloud_docs_p4ob-2-300x257.png 300w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_cloud_docs_p4ob-2-1024x878.png 1024w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_cloud_docs_p4ob-2-768x659.png 768w" sizes="(max-width: 1104px) 100vw, 1104px" />

machine learning / sentiment analysis

Constructing an Ensemble of Supervised Classifiers for Sentiment Analysis

What is an Ensemble of Classifiers in Supervised Classification? In machine learning, an ensemble of supervised classifiers is basically a…

Benchmarking Supervised Classifiers for Sentiment Classification

<img loading="lazy" decoding="async" width="1175" height="853" src="https://sentimentr.com/wp-content/uploads/2020/06/undraw_add_content_d1tf-1.png" class="attachment-full size-full wp-post-image lazyload lazyload" alt="Benchmarking Supervised Classifiers for Sentiment Classification" itemprop="image" srcset="https://sentimentr.com/wp-content/uploads/2020/06/undraw_add_content_d1tf-1.png 1175w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_add_content_d1tf-1-300x218.png 300w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_add_content_d1tf-1-1024x743.png 1024w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_add_content_d1tf-1-768x558.png 768w" sizes="(max-width: 1175px) 100vw, 1175px" />

machine learning / sentiment analysis

Benchmarking Supervised Classifiers for Sentiment Classification

Problem definition In this post, we use the Stanford Large Movie Reviews dataset to perform simple binary sentiment classification on…

How to Save a Trained Classifier to File using Pickle

<img loading="lazy" decoding="async" width="1218" height="970" src="https://sentimentr.com/wp-content/uploads/2020/06/undraw_organized_content_25ww.png" class="attachment-full size-full wp-post-image lazyload lazyload" alt="How to Save a Trained Classifier to File using Pickle" itemprop="image" srcset="https://sentimentr.com/wp-content/uploads/2020/06/undraw_organized_content_25ww.png 1218w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_organized_content_25ww-300x239.png 300w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_organized_content_25ww-1024x816.png 1024w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_organized_content_25ww-768x612.png 768w" sizes="(max-width: 1218px) 100vw, 1218px" />

machine learning

How to Save a Trained Classifier to File using Pickle

In this post, we use the Pickle module in Python. Using Pickle, we can train any machine learning classifier, and…

Basic Supervised Sentiment Classification using NLTK Naive Bayes

<img loading="lazy" decoding="async" width="1128" height="835" src="https://sentimentr.com/wp-content/uploads/2020/06/undraw_google_docs_jf93-3.png" class="attachment-full size-full wp-post-image lazyload lazyload" alt="Basic Supervised Sentiment Classification using NLTK Naive Bayes" itemprop="image" srcset="https://sentimentr.com/wp-content/uploads/2020/06/undraw_google_docs_jf93-3.png 1128w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_google_docs_jf93-3-300x222.png 300w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_google_docs_jf93-3-1024x758.png 1024w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_google_docs_jf93-3-768x569.png 768w" sizes="(max-width: 1128px) 100vw, 1128px" />

sentiment analysis

Basic Supervised Sentiment Classification using NLTK Naive Bayes

Problem definition Here we perform sentiment classification on some movie reviews. We use the default Naive Bayes classifier found in…

On the fly Social Media Sentiment Analysis with Vader

<img loading="lazy" decoding="async" width="884" height="833" src="https://sentimentr.com/wp-content/uploads/2020/06/undraw_feeling_happy_jymo-1.png" class="attachment-full size-full wp-post-image lazyload lazyload" alt="On the fly Social Media Sentiment Analysis with Vader" itemprop="image" srcset="https://sentimentr.com/wp-content/uploads/2020/06/undraw_feeling_happy_jymo-1.png 884w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_feeling_happy_jymo-1-300x283.png 300w, https://sentimentr.com/wp-content/uploads/2020/06/undraw_feeling_happy_jymo-1-768x724.png 768w" sizes="(max-width: 884px) 100vw, 884px" />

Python / sentiment analysis

On the fly Social Media Sentiment Analysis with Vader

Social Media Sentiment Analysis Sentiment analysis, sometimes called opinion mining, is essentially a natural language processing task that aims to…