adrian-lara / machine_learn_songs Goto Github PK

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Ruby 84.71% JavaScript 1.29% HTML 9.42% SCSS 4.58%

machine_learn_songs's Introduction

MachineLearnSongs

I presented this app at Turing School of Software & Design's January 2018 Demo Night. This presentation included a demo and a high-level overview of the application. test

General

MachineLearnSongs uses a hand-rolled machine learning algorithm to predict the probabilities of a user liking and disliking songs via Spotify.

Users play a song separately on Spotify, and upon signing in to MachineLearnSongs, the user is able to "Like", "Dislike", and get a prediction for the currently playing song. Once a song is liked or disliked, that preference and the song's audio features (consumed from Spotify's API) are saved to a PostgreSQL database. When the user navigates to the the "Predict" page, a machine learning algorithm, which is coded to execute a Gaussian Naive Bayes classification, uses the user's previous song "likes" and "dislikes" to calculate the percentage chance that a user will like or dislike the currently playing song.

Technical Details

API

Spotify API

User's authenticate via their Spotify account. The users's currently playing songs and corresponding song audio-features are both consumed.

Machine Learning Component

This application applies the Gaussian Naive Bayes classifier. Refer to presentation (also) linked above for a high-level explanation of how the algorithm works.

machine_learn_songs's People

Contributors

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machine_learn_songs's Issues

Show users their like and dislike counts

Create javascript to refresh token if updated at is greater than 59 minutes ago

Center and rephrase "Just a heads up... "

Initial Deploy to Heroku

User can ask for a prediction of a song

As a registered user that has like and disliked different songs,
When I visit "/predict", fill in the search field with 'Humble',
And click "Search", and click "Predict"
Then a pop up window appears with a prediction as to whether I'll like this song.

Log In link disappears on root page if logged in

Predict page errors when no song is playing

User can search on predict page

As a registered user,
When I visit "/predict", fill in a search field with 'Humble',
And click "Search"
Then I see "Humble" by Kendrick Lamar with a "Predict" button next to the song

Change "dashboard" to "learn"

User changes like/dislike preference on a song

As a registered user,
When I'm on the "/history"
And, for a song that I've 'liked' before, I click the down arrow,
I've changed the 'like' to 'dislike' in the database,
And the colored arrow is now the down arrow
Also, I'm still on "/history"

As a registered user,
When I'm on the "/history"
And, for a song that I've 'disliked' before, I click the up arrow,
I've changed the 'dislike' to 'like' in the database,
And the colored arrow is now the up arrow
Also, I'm still on "/history"

Write tests for SongAssessmentService, TrackCharacter, and UserTrackCharacter

Center Currently playing on Dashboard Page

Add visualizations to show users more of the backend inner workings

User can log out

User visits history page

As a registered user,
When I'm on my dashboard
And click "History",
Then I see a list of songs I've either liked or disliked
Indicated by a colored up arrow or down arrow, respectively
And I'm on the page, "/history"

Refactor Dashboard to use CreationService

Refactor OAuth

Blocked by Issue #14

Test Mock OAuth

Since Omniauth gem isn't being used, I can't leverage the mock_auth method typically used for this.

Style Page Welcome and Dashboard Page

Implement background worker for Prediction PORO

Style .like-dislike on user dashboard

Create homepage

As a guest,
When I visit the homepage,
Then I see a "Login" link in the center of the page,
A "How It Works" link in the footer of the page,
And "(name of site)" link at the top left of the page.

Display Current Song on User Dashboard

As a registered user (that's currently playing a song on Spotify),
When I visit the "/login" page, enter my information, and click "Log In",
Then I'm redirected to my dashboard,
And I see the song I'm currently playing
And I see a button to "Like" as well as a button to "Dislike"

User likes a song that another user has liked

User visits predict page and it's preloaded with prediction

As a user (playing a song on Spotify and having liked and disliked many songs),
When I'm on the prediction page
And I click on "Predict",
Then I see the prediction results in the form of text.

Refactor Predict to use CreationService

Flag for a user that hasn't liked or disliked any songs

Incorporate Bullet

Incorporate NewRelic

Prediction results are dope

As a user (playing a song on Spotify and having liked and disliked many songs),
When I'm on the prediction page
And I click on "Predict",
Then I see the prediction results in the form of a real time colored bar. (like score is green and dislike color is red [like buttons])

Incorporate Travis CI

Create a Song PORO

Refactor Song View

Display "Play Song.." Message on User Dashboard

As a registered user (that's NOT currently playing a song on Spotify),
When I visit the "/login" page, enter my information, and click "Log In",
Then I'm redirected to my dashboard,
And I see "Play a song on Spotify!"

When a user plays or stops a song (on Spotify), dashboard gets updated using AJAX

Refactor UserTrack Controller to use CreationService

Create Prediction PORO that executes Gaussian Naive Bayes algorithm

User dislikes a song test

As a registered user (that's currently playing a song on Spotify),
When I visit my dashboad
And click the "Dislike" button for the song currently playing,
Then that song, it's spotify analytics, and the "dislike" choice are saved to the database
I'm on the page, and the "Dislike" button is a different color

Change Site Title

User visits predict page

As a registered user,
When I visit my dashboard, click "Predict",
Then I'm now on "/predict",
And I see the song I'm currently playing

Implement Spotify OAuth

As a registered user with Spotify,
When I visit the "/login" page, enter my information, and click "Log In",
Then I'm redirected to my dashboard,
And I see my Spotify username

Guest cannot visit /dashboard

Create a SpotifyService PORO and refactor dashboard and track characters controller (Must refresh cassettes)

Create logo with brain and song something

write rake task to refresh access token on application.yml for tests

User likes a song

As a registered user (that's currently playing a song on Spotify),
When I visit my dashboard
And click the "Like" button for the song currently playing,
Then that song, it's spotify analytics, and the "like" are saved to the database
I'm on the page, and the "Like" button is a different color