A new algorithm called Opt-join was developed to make finding similar data faster and more efficient. This algorithm is an improvement over an existing method called Topk-join. Opt-join reduces the time it takes to process events in the data and makes searching for specific information quicker by changing the order of some operations. The researchers proved that the new algorithm is correct and tested it against the old one. The results showed that Opt-join can be 1.28x to 3.09x faster than Topk-join. This means using Opt-join could speed up finding similar data in different applications.