Sentimetre

This app is a journaling application that allows users to journal with ease. We use Vader Sentimant Analysis to determine the positivity of a set of words with emoji support, then return analytics for users to see how their day went.

On the backend, we have expressjs for our API endpoint, then have a reactjs front end. This allows for our application to evolve and return the useful data to other applications. In the future we intend to further develop this app to

Emoticon Support

Emoticons are a great quick indicator of whether someone had a good or bad day. By using Vader, sentimant of these icons is possible. This allows us to determine of the user has had either a good or bad experience.

Extensible API

This api will be available to the public in the future for other applications to use our stable backbone.

Requests:

{
  "c_sentence": "I feel supported by my family, I miss them. My friends, they’ve been ignoring me. It feels very lonely.",
  "h_sentence": "I used to be, but not anymore. I feel like I can’t motivate myself without others supporting me.",
  "i_sentence": "I often feel I cannot express my true emotions. I usually lock them up inside.",
  "m_sentence": "I do, but I don’t know how to reach them. They feel out of reach.",
  "e_sentence": "No. I feel like I am going with the flow and I don’t know where it’s taking me."
}

Responses:

{
    "c_score": {
        "neg": 0.29,
        "neu": 0.49,
        "pos": 0.22,
        "compound": -0.1761
    },
    "h_score": {
        "neg": 0.273,
        "neu": 0.567,
        "pos": 0.161,
        "compound": -0.3343
    },
    "i_score": {
        "neg": 0.175,
        "neu": 0.825,
        "pos": 0,
        "compound": -0.3252
    },
    "m_score": {
        "neg": 0,
        "neu": 0.827,
        "pos": 0.173,
        "compound": 0.0772
    },
    "e_score": {
        "neg": 0.124,
        "neu": 0.734,
        "pos": 0.141,
        "compound": 0.0772
    },
    "compound": -0.13623999999999997
}

Installation

Cool! Let's get started. To get the API up and running

Server

Open up the server folder, run npm install, then start it by doing node server.js. The API will be served at http://127.0.0.1:3001/api/v1/response.

The API is also available from https://sudoer.dev/api/v1/response, free of charge until we get around to locking it down.

Front End

Make sure you've got npm installed. Use npm install from the main repository, then npm run build or yarn build for production environments. npm start or yarn start is a good way to get going in a development environment.

Vader Sentiment Analysis

https://github.com/cjhutto/vaderSentiment

VADER: A Parsimonious Rule-based Model for Sentiment Analysis of Social Media Text
(by C.J. Hutto and Eric Gilbert)
Eighth International Conference on Weblogs and Social Media (ICWSM-14). Ann Arbor, MI, June 2014.