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- 03-05-2011, 08:06 AM #1Member
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- Aug 2008
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How to define custom numerical similarity scores in Lucene ?
Queries and Documents in my collection have multiple fields: some numeric and some textual. I know how to define custom Similarity classes per field in Lucene: so I have my textualSimilarity (tf.idf based) and a numericalSimilarity class (both extending Similarity)
I'm now studying how to implement such numericalSimilarity. I have a math formula " (queryNumber - docNumber) / normalization factor) to define the similarity between numeric fields.
But how can I implement this formula in the numericalSimilarity class ? Which methods should I extend ?
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