For example, matching St. and Saint returns a low similarity score regardless of other matches. If Saint is the only match returned, the confidence score is high. If both Saint and St. appear in the reference table, the confidence in St. is high and the confidence in Saint is low. However, high similarity may not mean high confidence. For example, if you are looking up the value Chapter 4, the returned results Chapter 1, Chapter 2, and Chapter 3 have a high similarity score but a low confidence score because it is unclear which of the results is the best match.
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