node.js interface to the ConceptNet semantic network API
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README.md

NPM version Build Status Coverage Status Dependencies

ConceptNet

node.js interface to the ConceptNet semantic network API. For further information, consult the website of the project: http://conceptnet5.media.mit.edu/.

Introduction

The ConceptNet package can be easily installed via npm:

npm install concept-net

To require the module in a project, we can use the expression:

var ConceptNet = require( 'concept-net' );

Getting Started

The module exports a single constructor which can be used to open an API connection. Simply call it an store the expression result in a variable:

var conceptNet = ConceptNet();

In case that you are running an own copy of the ConceptNet server, the constructor takes the hostname of the server as an optional argument. The default option evaluates to "conceptnet5.media.mit.edu:80".

ConceptNet( '<hostname>', '<port>', '<conceptnet version number>' );

Example:

var conceptNet = ConceptNet( '10.0.0.1', '10053', '5.3' );

Note you can modify only the version by just passing null to the first two arguments:

var conceptNet = ConceptNet( null, null, '5.3' );

We can then use the following three methods to query the ConceptNet API:

Methods

.lookup( uri[, params], callback )

This method expects a valid ConceptNet URI as its first argument. See the documentation. Params is an (optional) object that specifies the arguments of the GET request. It can have the keys limit, offset and filter. The callback function has two parameters: The err parameter will return error objects in case that something goes wrong during the function invocation. If the query is successful, err is undefined and the result parameter holds the result set from the query.

Example code:

conceptNet.lookup( '/c/en/toast', {
    limit: 10,
    offset: 0,
    filter: 'core'
}, function onDone( err, result ) {
    // insert code here
})

.getURI( text[, language], callback )

This method finds out what the ConceptNet URI is for a given text, applying steps such as reducing English words to their root form. The language parameter can be supplied a code for the language to use. If only two arguments are supplied, language is set to the default value en.

Example code:

conceptNet.getURI( 'ground beef', 'en', function onDone( err, result ) {
    // insert code here
})

.search( params, callback )

The search method takes a parameter object and hands the retrieved results to the callback function. The official ConceptNet API documentation provides a full overview of the possible search parameters: ConceptNet API documentation.

Example code:

conceptNet.search({
    start: '/c/en/donut'
}, function onDone( err, result ) {
    // insert code here
})

.association( input[, params], callback )

The association method takes as its first input either a valid ConceptNet URI or a /list/<language>/<term list> path.

Example code:

conceptNet.association( '/c/en/hotdog', {
    limit: 10,
    filter: '/c/en/donut'
}, function onDone( err, result ){
    // insert code here
})

Unit Tests

Run tests via the command npm test


License

MIT license.