The Math Behind the Magic: Vector Space Models in Java
When I built DevShelf, I didn’t want to just “find” strings. I wanted to rank them by relevance. To do this, I implemented the Vector Space Model. The Core Problem A naive search checks if Book.contains("Java"). A real search engine asks: “How relevant is this book to the query ‘Java’ compared to all other books?” To solve this, I engineered the QueryProcessor class to treat every book as a vector in multidimensional space. ...