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Showing 1 to 4 of 4 for “"Abstraction network"”.
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Extensions of SNOMED taxonomy abstraction networks supporting auditing and complexity analysis
… the partial-area taxonomy, a hierarchical abstraction network consisting of units called partial-areas. Each partial-area comprises a set of SNOMED concepts exhibiting a particular relationship structure and being distinguished by a unique root concept. In this dissertation, some extensions …
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Design and Evaluation of Skill-Based Imitation Learning Policies for Robotic Manipulation
… formulation, with a causal transformer VAE skill-abstraction network paired with an autoregressive transformer planning policy. We find that our skill-abstraction network shows promise in identifying meaningful skills, but that the chosen planning architecture is poorly suited for predicting these …
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Designing novel abstraction networks for ontology summarization and quality assurance
… that utilize the ontology. In prior studies abstraction networks (AbNs) were developed to provide a compact summary of an ontology's content and structure. AbNs have been shown to successfully support ontology summarization and quality assurance (QA), e.g., for SNOMED CT and NCIt. Despite the …
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Structural analysis and auditing of SNOMED hierarchies using abstraction networks
… groups of more manageable sizes. Three related abstraction networks with respect to a SNOMED hierarchy, namely the area taxonomy, partial-area taxonomy, and disjoint partial-area taxonomy, are derived programmatically from the partitions. Altogether they afford high-level abstraction views of …