conflation

Helps aggregate subject-predicate-object triples into condensed "digests"

Usage

Call conflation.conflate(triples [, perspective ]).

• triples should be an array of triples (3-element arrays). A triple is in the form of [ subject, predicate, object ]. Subjects and objects should be strings or numbers, or arrays of the same.
• perspective should equal either "subject" (default) or "object". In subject mode, the object part of the triples will be aggregated. In object mode, the subject part of the triples will be aggregated.

Returns

• object containing add and remove keys.
• add will be an array of new triples aggregated from the input, with either the subject or object portion being an array (depending on the perspective).
• remove will be an array of numeric indexes of the input array, of items which are redundant in light of the new aggregated triples. Duplicate items in the input will also appear in the remove array.
• each element in add will have a hidden property called _replaces (array), corresponding to the set of indexes in the input that the new triple supercedes.

Example

var conflation = require('conflation');
 
var activity = [
  ['bob', 'commented on', 'led zeppelin'],
  ['jill', 'commented on', 'the doors'],
  ['bob', 'commented on', 'led zeppelin'],
  ['jane', 'commented on', 'the beatles'],
  ['jane', 'blogged about', 'the doors'],
  ['jill', 'commented on', 'the beatles']
];
 
// from the "subject" perspective (default):
 
var result = conflation.conflate(activity);
console.log(JSON.stringify(result, null, 2));
/*
{
  "add": [
    [
      "jill",
      "commented on",
      [
        "the doors",
        "the beatles"
      ]
    ]
  ],
  "remove": [
    1,
    2,
    5
  ]
}
*/
 
// from the "object" perspective:
 
var result = conflation.conflate(activity, 'object');
console.log(JSON.stringify(result, null, 2));
/*
{
  "add": [
    [
      [
        "jane",
        "jill"
      ],
      "commented on",
      "the beatles"
    ]
  ],
  "remove": [
    2,
    3,
    5
  ]
}
*/

Re-aggregation

It's possible to run aggregated triples (from add result) through conflate() again to re-aggregate with more data.

Developed by Terra Eclipse

Terra Eclipse, Inc. is a nationally recognized political technology and strategy firm located in Aptos, CA and Washington, D.C.

License: MIT

• Copyright (C) 2012 Carlos Rodriguez (http://s8f.org/)
• Copyright (C) 2012 Terra Eclipse, Inc. (http://www.terraeclipse.com/)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.