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Statistical sentiment analysis of Twitter as a review platform

Reviews being the most important thing in deciding whether to visit a place or not and having a genuine review is the most essential part. Generally, reviews available on websites and platform such as Yelp are more inclined to the positive aspects of a place. Moreover, the amount of usage of social media platforms has increased also, these platforms contain posts which expresses user’s opinion in a better way. Twitter being an important contributor, understanding the reliability of such tweets of being reviews is also important. To examine this, we have devised various approaches using natural language processing to analyze the tweets and obtain a statistical analysis of the same based on metadata obtains from tweets.

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.

Prerequisites and Installation

STEP 1: Download and install Python3 on your machine

  • You can download python3 installer from their official website here
  • Once the setup is downloaded, follow the instructions to install the same.

STEP 2: Additional Dependencies

  • JsonPickle:

    Run the following command on terminal to install the dependency.

    pip3 install jsonpickle

    If you want to explore other installation methods please visit the module's documentation here

  • TweePy:

    Run the following command on terminal to install the dependency.

    pip3 install tweepy

    If you want to explore other installation methods please visit the module's documentation here

  • PyEnchant:

    Run the following command on terminal to install the dependency.

    pip3 install pyenchant

    If you want to explore other installation methods please visit the module's documentation here

STEP 3: Cloning the repository

Run the following command on terminal to clone the repository or optionally you can use any other git management tool

git clone https://github.com/ankit13jain/Twitter-Mining.git

STEP 4: Getting Access to Twitter API Credentials

  • If you don't already have a Twitter Account "Create a Twitter Account!" :|
  • Open the Twitter Dev Apps website from here. Click on "Create new App"

Create New App

  • Fill out the required details in the form and click on "Create your Twitter Application"

Fill details

  • Get the API_KEY and API_SECRET from the "Keys and Access Tokens" tab

Fill details

  • Create a file with name 'credential.json' and paste the following content

    { "API_KEY": "YOUR_API_KEY", "API_SECRET": "YOUR_API_SECRET" }

Setting up Cassandra

Install Cassandra database to build the tweets repository

Installing Cassandra on MAC :

You can also use the curl command on Mac to directly download the files to your machine. For example, to download the DataStax Community Server, you could enter the following at terminal prompt:

curl -OL http://downloads.datastax.com/community/dsc.tar.gz

Install Cassandra Once your download of Cassandra finishes, move the file to whatever directory you’d like to use for testing Cassandra. Then uncompress the file (whose name will change depending on the version you’re downloading):

tar -xzf dsc-cassandra-1.2.2-bin.tar.gz

Then switch to the new Cassandra bin directory and start up Cassandra:

pratikmac:dev pratik$ cd dsc-cassandra-1.2.2/bin

pratikmac:bin pratik$ sudo ./cassandra

Installing Cassandra on Windows :

Download the windows installer of Cassandra Datastax Community Server and follow the steps given here on the official documentation.

Installing ODBC driver for Cassandra and testing it with Tableau:

Download and install Tableau from here and then follow the steps given on Datastax official documentation guide here

Setup Cassandra Driver for Python

pip install cassandra-driver

Create the keyspace and tweets table schema

Open the CQL shell Execute the command : cqlsh>SOURCE '~/scripts/tweets-schema-cassandra.cql'

Yelp Reviews Bag of Words

The dataset used for creating Bag of Words of Yelp reviews is available of the Yelp Website.

Download the Dataset

To download the Yelp dataset, click here. The dataset is available in two formats: JSON and SQL. The format of the dataset used here is JSON.

Understanding the Dataset

The dataset consists of six JSON files. The overview of all the files can be seen here. The file used for creating bag of words is review.json. The reviews are stored in string format in 'text' attribute.

review.json

Creating bag of words

  • Change the working directory to

    ... Twitter-Mining/scripts

  • Change file_name with the path of the yelp dataset in yelp_review_mining.py

  • Now being in scripts folder run the following command on terminal

    python3 yelp_review_mining.py

  • Running the code once will read and create Bag of Words for 50000 reviews. Multiple runs will add bag of words to the same model.

Running the code

Extracting data

  • Change the working directory to

    ... Twitter-Mining/scripts

  • Now being in scripts folder run the following command on terminal

    python3 tweet_mining.py "LOCATION_OR_THING_YOU_WANT_TWEETS_FOR"

  • All the data will be extracted in json format containing the metadata mentioned here. These json files are zipped together to save disk space and moved into 'data' folder

Output

Loading data into database

  • Change the working directory to

    ... Twitter-Mining/scripts

  • Now being in scripts folder run the following command on terminal

    python3 building_repository.py

Authors

License

This project is licensed under the MIT License - see the LICENSE file for details

More about the research, references and inspiration for the project