Summary

In this chapter, we covered advanced topics associated with scoring, function queries, and so on. We began with a background on Lucene scoring, different terminologies and their significance, and learned query-time and index-time boosting. We also learned how to troubleshoot your queries and scoring and headed towards more complex and important topics such as different ways to use the dismax query parser and how it is better than Lucene's DisjunctionMaxQuery. Apart from this, we learned the ways of boosting our search based on varied circumstances, for instance, automatic phrase boosting and partial phrase boosting, what are the boost queries and boost functions and how can they be used. We also covered advanced concepts of function queries such as field and function references, different mathematical operations, including geometric or trigonometric operations, and how to implement formulas such as logarithm, reciprocal, and linear in an intention to boost your function queries.

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