Concept Insights Nodejs

The IBM Watson Concept Insights service links documents that you provide with a pre-existing graph of concepts based on Wikipedia (e.g. 'Solar Energy', 'Cognitive Systems', etc.). Two types of links are identified: explicit links when a document directly mentions a concept, and implicit links which connect your documents to relevant concepts that are not directly mentioned in them. Users of this service can also search for documents that are relevant to a concept or collection of concepts by exploring the explicit and implicit links.

Give it a try! Click the button below to fork into IBM DevOps Services and deploy your own copy of this application on Bluemix.

Getting Started

Create a Bluemix Account

Download and install the Cloud-foundry CLI tool
Edit the manifest.yml file and change the <application-name> to something unique.

applications:
- services:
  - concept-insights-service
  name: <application-name>
  path: .
  memory: 256M

The name you use will determinate your application url initially, e.g. <application-name>.mybluemix.net.

Connect to Bluemix in the command line tool

$ cf api https://api.ng.bluemix.net
$ cf login -u <your user ID>

Create the Concept Insights service in Bluemix

$ cf create-service concept_insights standard concept-insights-standard

Push it live!

$ cf push

Running locally

The application uses Node.js and npm so you will have to download and install them as part of the steps below.

Copy the credentials from your concept-insights-standard service in Bluemix to app.js, you can see the credentials using:

$ cf env <application-name>

Example output:

System-Provided:
{
"VCAP_SERVICES": {
  "concept_insights": [{
      "credentials": {
        "url": "<url>",
        "password": "<password>",
        "username": "<username>"
      },
    "label": "concept_insights",
    "name": "concept-insights-standard",
    "plan": "standard"
 }]
}
}

You need to copy username, password and url.

Install Node.js
Go to the project folder in a terminal and run: npm install
Start the application
node app.js
Go to http://localhost:3000

Troubleshooting

To troubleshoot your Bluemix app the main useful source of information are the logs, to see them, run:

$ cf logs <application-name> --recent

License

This sample code is licensed under Apache 2.0. Full license text is available in COPYING.

Contributing

See CONTRIBUTING.

Open Source @ IBM

Find more open source projects on the IBM Github Page