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Bootstrapping knowledge representations: from entailment meshes via semantic nets to learning webs

Heylighen, Francis (1997) Bootstrapping knowledge representations: from entailment meshes via semantic nets to learning webs. [Preprint]

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Abstract

The symbol-based, correspondence epistemology used in AI is contrasted with the constructivist, coherence epistemology promoted by cybernetics. The latter leads to bootstrapping knowledge representations, in which different parts of the cognitive system mutually support each other. Gordon Pask's entailment meshes and their implementation in the ThoughtSticker program are reviewed as a basic application of this methodology. Entailment meshes are then extended to entailment nets: directed graph representations governed by the "bootstrapping axiom", determining which concepts are to be distinguished or merged. This allows a constant restructuring and elicitation of the conceptual network. Semantic networks and frame-like representations with inheritance can be expressed in this very general scheme by introducing a basic ontology of node and link types. Entailment nets are then generalized to associative nets characterized by weighted links. Learning algorithms are presented which can adapt the link strengths, based on the frequency with which links are selected by hypertext browsers. It is argued that these different bootstrapping methods could be applied to make the World-Wide Web more intelligent, by allowing it to self-organize and support inferences through spreading activation.

Item Type:Preprint
Keywords:knowledge representation, semantic networks, entailment meshes, bootstrapping, human-computer interaction, knowledge elicitation, ontology, knowledge structuring, hypertext, learning webs, machine learning, associative networks, frames, ThoughtSticker, Gordon Pask, coherence epistemology
Subjects:Psychology > Applied Cognitive Psychology
Computer Science > Artificial Intelligence
Computer Science > Neural Nets
ID Code:458
Deposited By:Heylighen, Francis
Deposited On:15 Jun 1998
Last Modified:11 Mar 2011 08:53

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