Showing posts with label Ontologies. Show all posts
Showing posts with label Ontologies. Show all posts

Tuesday, January 28, 2014

On automatically inducing ontologies


It would be a lot more feasable to induce ontologies if we agreed on what it meant have a good ontology.  I claim the crafting a good ontology is an AI- hard or in another words a human-hard task.  I've been a little bit surprised in the last few years of the numbers of request for proposals for the automatic induction of ontologies.  I would've much rather seen that money spent on us deciding what it meant to do good data model design.  Once we know what a good ontology is, we can properly judge attempts to automatically induce such things. But it's clear to me that the automatic induction of  ontologies is also NLP-hard :^).  And Google Translate isn't going to get us  to full natural language understanding or anything close to it.  I claim this will require handcrafted ontologies.  So the bottom line to me is that once we've completely modeled our practical world, we will be prepared to automatically induce that model :^).

Monday, November 4, 2013


The Semanic Effort



Basic Information:

The Semanic effort is an attempt to create a small experimental semantic web featuring formal semantic modeling and integration of genealogical data. It employs some ambitious/radical temporal reasoning techniques and high expressivity. In particular, it boldly reifies all times as a shared library of time interval instances to boost the expressivity of temporal reasoning. The name is meant to be a sticky/memorable pun that suggests a somewhat manic ambition in combining many difficult-to-reconcile design goals and the hated single ontology.
The most recent ontology is to be found at http://semanic.org/OntDef/08-26-12/SemanticGEDCOM.owl.
The time instance data is found at "http://semanic.org/RefDat/09-26-12/Time/TimeWeb.owl". This is a large file. You may want to individually load the 100-year files.
To submit a SPARQL or Prolog query against the genealogical data, go to this link.
  • Peterson, E., Reified Literals: A Best Practice Candidate Design Pattern for Increased Expressivity in the Intelligence Community, Semantic Technology for Intelligence, Defense, and Security, Fairfax, VA, 2010