Rankings committee 2015: John Grundy, Alistair Moffat, Lin Padgham, Vijay Varadharajan Data for this journal was provided as a comparator in relation to an rerank request for IEEE Transaction on Knowledge and Data Engineering. The data was reviewed, however due to lack of clarity as to what constitutes various ranks for journals, it was decided to make NO changes to ERA 2010 in 2015. Data collected is stored but no commitment has been made regarding whether the data supports the current rank.