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This paper presents an approach to optimal design of elastic flywheels using an Injection Island Genetic Algorithm (iiGA). An iiGA in combination with a finite element code is used to search for shape variations to optimize the Specific Energy Density (SED) of elastic flywheels. SED is defined as the amount of rotational energy stored per unit mass. iiGAs(More)
We describe a system for extracting concepts from unstructured text. We do this by identifying relationships between words in the text based on a lexical database and identifying groups of these words which form closely tied conceptual groups. The word relationships are used to create a directed graph, called a Semantic Relationship Graph (SRG). This SRG is(More)
We describe a system for extracting concepts from unstructured text. We do this by clustering document words and then assembling a structure which relates these words semantically. The clustering process identiies words which co{occur across a set of documents and creates groups of words which suggest a semantic context common across the document set. This(More)
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