Newsifier

Application that uses IBM Watson services to create, train and test a NLC Classifier of news

Bluemix Services used

• Cloudant NoSQL DB
• Object Storage
• Watson Natural Language Understanding (NLU)
• Watson Natural Language Classifier (NLC)

How it works

1. Sources: generic news RSS feeds provided by the user
2. Extraction of keywords and categories for each news using Watson NLU
3. Dataset persisted on Object Storage
4. Creation of a NLC using the generated dataset
5. Classifier training
6. Testing the classifier using Leave-p-out cross-validation

Prerequisites

• Download and install Eclipse IDE for Java EE Developers from here

• Install Liberty server in Eclipse from here

• Create a new Liberty server in your workspace

• Provision the following services on Bluemix

  • Cloudant NoSQL DB
  • Object Storage
  • Watson NLU
  • Watson NLC

Deployment

Local machine

Add the credentials for your Bluemix services in com.newsifier.utils.Credentials

On Bluemix

• Export the application .war file

• Add your services to the manifest.yml

• Run the following command from the manifest directory

cf push -p <exported_application.war> <app_name>

Or see here other options for pushing Liberty applications on Bluemix

Running the application

http://<host>:<port>/newsifier

Authors

• Simone Rutigliano - Software Engineer - LinkedIn
• Umberto Manganiello - Software Engineer - LinkedIn