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The Pragmatic Roots of Context - Bruce Edmonds

6. Bottom-up and Top-down Approaches to Modelling Context

In addition to the differences in context resulting from the heuristics relevant to a domain and whether an `internal' or `external' approach is taken, there are also differences that are imposed by us as modellers due to the different approaches we use for investigating these situations. One of the most important (in terms of contrasts in approach) is whether one attempts to formulate one's models using a `top-down' or `bottom-up' approach. A top-down approach is where one attempts to lay down general principles (encoded variously as axioms, rules, algorithms, etc.) based on current or a priori thought. A bottom-up approach would involve attempting to induce models of context from the details of the learning and inferential processes as they might occur in practice, and later seeing if any appropriate abstractions or generalisations suggest themselves.

6.1. - Top-down
6.2. - Bottom-up

The Pragmatic Roots of Context - Bruce Edmonds - 31 MAR 99
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