use case points estimation is relatively widely used and is also commonly integrated into UML tools. Otherwise expert-based estimation, often enhanced with a Wide-Band-Delphi based consensus building process.
Thanks Adeolu O Afolabi and Fritz Solms for your answers. But here the question is about evaluation of these, not estimation techniques. MRE, MMRE, RMS and PRED(n) are the methods which are well known and I know, as I mentioned in the question, for evaluation of accuracy for estimation techniques but also I would like to know any researcher if has used a different method for evaluation.