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They are also looking at anomaly detection: http://slac.stanford.edu/pubs/slacpubs/13250/slac-pub-13399.pdf or http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.363.1087 for comparisons of some techniques and http://people.cs.missouri.edu/~calyamp/publications/ontimedetect_mascots10.pdf. Next they will look at perfromance performance among correlated routes. There are quite a lot of papers in this are so a literature search is highly recommended.
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