What are the current approaches for analyzing emotions within a piece of text? Which tools and Python packages should you use for sentiment analysis? This week, Jodie Burchell, developer advocate for data science at JetBrains, returns to the show to discuss modern sentiment analysis in Python.

Jodie holds a PhD in clinical psychology. We discuss how her interest in studying emotions has continued throughout her career.

In this episode, Jodie covers three ways to approach sentiment analysis. We start by discussing traditional lexicon-based and machine-learning approaches. Then, we dive into how specific types of LLMs can be used for the task. We also share multiple resources so you can continue to explore sentiment analysis on your own.

This week’s episode is brought to you by Sentry.

Course Spotlight: Learn Text Classification With Python and Keras

In this course, you’ll learn about Python text classification with Keras, working your way from a bag-of-words model with logistic regression to more advanced methods, such as convolutional neural networks. You’ll see how you can use pretrained word embeddings, and you’ll squeeze more performance out of your model through hyperparameter optimization.

Topics:

00:00:00 – Introduction
00:02:31 – Conference talks in 2024
00:04:23 – Background on sentiment analysis and studying feelings
00:07:09 – What led you to study emotions?
00:08:57 – Dimensional emotion classification
00:10:42 – Different types of sentiment analysis
00:14:28 – Lexicon-based approaches
00:17:50 – VADER - Valence Aware Dictionary and sEntiment Reasoner
00:19:41 – TextBlob and subjectivity scoring
00:21:48 – Sponsor: Sentry
00:22:52 – Measuring sentiment of New Year’s resolutions
00:27:28 – Lexicon-based approaches links for experimenting
00:28:35 – Multiple language support in lexicon-based packages
00:35:23 – Machine learning techniques
00:39:20 – Tools for this approach
00:42:54 – Video Course Spotlight
00:44:15 – Advantages to the machine learning models approach
00:45:55 – Large language model approach
00:48:44 – Encoder vs decoder models
00:52:09 – Comparing the concept of fine-tuning
00:56:49 – Is this a recent development?
00:58:08 – Ways to practice with these techniques
01:00:10 – Do you find this to be a promising approach?
01:07:45 – Resources to practice with all the techniques
01:11:06 – Upcoming conference talks
01:11:56 – Thanks and goodbye

Show Links:

Introduction to Sentiment Analysis in Python - The PyCharm Blog
How to Do Sentiment Analysis With Large Language Models - The PyCharm Blog
Talks - Jodie Burchell: Lies, damned lies and large language models - YouTube
Mirror, mirror: LLMs and the illusion of humanity - Jodie Burchell - YouTube
Separating fact from fiction in a world of AI fairytales - Jodie Burchell - NDC London 2024 - YouTube
Hurt Feelings (Rap Version) - Flight Of The Conchords (Lyrics) - YouTube
Universal Emotions - What are Emotions? - Paul Ekman Group
VADER - nltk.sentiment.vader module
clips/pattern: Web mining module for Python, with tools for scraping, natural language processing, machine learning
TextBlob: Simplified Text Processing — TextBlob documentation
Power vs. Force: The Hidden Determinants of Human Behavior by David R. Hawkins - Goodreads
Episode #36: Sentiment Analysis, Fourier Transforms, and More Python Data Science – The Real Python Podcast
Use Sentiment Analysis With Python to Classify Movie Reviews – Real Python
Sentiment Analysis: First Steps With Python’s NLTK Library – Real Python
Sentiment Analysis in DataSpell with @JetBrainsTV - YouTube
Episode #119: Natural Language Processing and How ML Models Understand Text – The Real Python Podcast
spaCy - Industrial-strength Natural Language Processing in Python
amazon_polarity - Datasets at Hugging Face
Introduction to Sentiment Analysis in Python - The PyCharm Blog
Kaggle: Your Machine Learning and Data Science Community
ZS BIT
AI Community Day - 10 December 2024
Jodie Burchell - The JetBrains Blog
Jodie Burchell’s Blog - Standard error
Jodie Burchell 🇦🇺🇩🇪 (@t_redactyl) - Twitter
Jodie Burchell (@t-redactyl.bsky.social) — Bluesky
Jodie Burchell 🇦🇺🇩🇪 (@t_redactyl@fosstodon.org) - Fosstodon
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