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Inverted Indexes: A Step-by-Step Implementation Guide (2023)
Inverted Indexes: why do you need one, and how to implement in Scala quickly and easily
processing is just splitting whole text into words (or "tokens"), a little bit of cleanup via processToken function, and adding them one by one to the InvertedIndex. I won't get into details of StringUtils functions here - their implementation is quite obvious from names and in any real-life application you would actually spend some time coming up with good data cleanup rules. Adding such a powerful capability is surprisingly easy to do, and on our "business logic" side (in InvertedIndex) it would just require one more method - merge.
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