How to calculate performance of your object recognition algorithm and compare results with others?
The problem seems to be that the authors of the other papers did not include enough information for you (or anyone) to be able to reproduce their work. This could have been oversight, or the editor (or reviewers) may have removed it prior to publication. I'd suggest contacting the authors of the problematic paper and see if they'll answer your question. Be polite (it's always nice to know someone read your paper, so let them know that you have!)