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Ontologies are an effective means to formally specify and constrain knowledge. They have proved their utility in various data mining applications, especially in annotating text to render it machine interpretable. More challenging research perspectives arise when ontologies are used to annotate images where the information is encoded in numeric pixel values rather than in natural language. Current...
Bootstrapping algorithms for information extraction gained a lot of attention in the scientific community over the past few years. Therefore the approaches used differ in major parts of the algorithms as well as in detail. This paper will give an overview of some variants and will evaluate their use in a real-world problem, the extraction of component names from automotive repair orders.
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