Local outlier factor (LOF) software / demo?

Question

Is there any software that enables me to perform LOF outlier detection towards a 2D dataset? I just implemented LOF from the original paper and want to check whether my results are correct. So far I couldn't find any tool or online service.

Answer 1

You should check rapidminer application. And add anomaly detection plugin.

Answer 2

Did you check the Wikipedia article on Local Outlier Factor? It mentions ELKI, which has a LOF implementation (with index support, so O(n log n) for large data sets).

Note that many people overlook the reachability-distance in LOF, and only approximate it. The ELKI implementation supposedly is correct, so it can help you well for testing your results.

Answer 3

Rapid Miner considers the IP address attribute of DARPA 1998 dataset as polynomial type data ! But LOF is not optimized for that. Interestingly RAPID MINER cannot handle such huge network traffic datasets. Any other implementation available ?