Coding Challenge #44: AFINN-111 Sentiment Analysis - Part 2

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Published on December 2, 2016 3:51:07 PM ● Video Link: https://www.youtube.com/watch?v=VV1JmMYceJw

Duration: 16:35

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In this multi-part coding challenge I implement sentiment analysis using the AFINN-111 word list. Code: https://thecodingtrain.com/challenges/44-afinn-111-sentiment-analysis

🕹️ p5.js Web Editor Sketch: https://editor.p5js.org/codingtrain/sketches/aNeMdpy-b

Other Parts of this Challenge:
📺 AFINN-111 Sentiment Analysis - Part 1: https://youtu.be/uw3GbsY_Pbc

🎥 Previous video: https://youtu.be/8Z9FRiW2Jlc?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH
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References:
🔗 AFINN: http://www2.imm.dtu.dk/pubdb/views/publication_details.php?id=6010
🔗 Node.js: https://nodejs.org/
🔗 Express.js: http://expressjs.com/

Livestream Archive:
🔴 Coding Train Live 68: https://youtu.be/lCzB9V9L8d0?t=3059s

Related Coding Challenges:
🚂 #42 Markov Chain Name Generator: https://youtu.be/eGFJ8vugIWA
🚂 #48 White House Social Media Data Visualization: https://youtu.be/UrznYJltZrU

Timestamps:
0:00 Introduce the coding challenge
0:08 Load `.json` file
0:35 Add markup to receive input text
2:15 Track `textarea` in JavaScript
3:39 Split text with a regular expression
5:05 Consider the `textarea` value
5:42 Iterate through the array of words
5:57 Consider word capitalization
6:30 Check if the AFINN list includes the word
7:48 Increase score counter
8:00 Add markup to display values
8:30 Display score
8:55 Display comparative score
9:15 Display word list
10:00 Test code
11:11 Convert score to a number
12:00 Test with different inputs
13:03 Compute the total score
14:12 Summarize the coding challenge
14:35 Highlight issue with the specific technique
16:00 Conclude the coding challenge

Editing by Mathieu Blanchette
Animations by Jason Heglund
Music from Epidemic Sound

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#sentimentanalysis #afinn111 #javascript #p5js