Abstract: A method for determining one or more characteristics of a hole includes obtaining depth data, tool velocity data, process current data, and a plurality of gates. The method further includes determining a plurality of first, second, and third key points. The plurality of first, second, and third key points together form a plurality of key points. The method further includes obtaining a plurality of rules. Each rule includes one of: a relationship between a respective key point and a value associated with the respective key point; and a relationship between two or more respective key points. The method further includes determining the one or more characteristics of the hole based on the plurality of rules and the plurality of key points.

Abstract: The invention relates to a method of querying technical domains that recognises the concepts represented by strings of characters, rather than merely comparing strings. It can be used to compute conceptual similarity between terms. The method employs string distance metrics and a cyclic progression of lexical processing to recognise constituent term concepts that are then combined to form full-term concepts by means of a grammar. Terms can be extracted and identified as being conceptually similar (or dissimilar) to other terms even if they have never previously been encountered. A key advantage is the ability to extract terms from documents based on the combination of a limited number of sub-concepts. This avoids the need for the prior identification of all possible terms that current methods require. A second key advantage is the ability to introduce or remove concepts and synonyms individually without the need to alter terms which the concept or synonym constitutes.