Hello, I am looking for quantitative evaluation (papers, links...) describing the effect of misspelled words (in queries or documents) on IR systems. -Patrick Ruch __________ Patrick Ruch HUG - Medical Informatics Division CH-1211 Geneva 14 tel.: (+41 22) 372 61 64 fax: (+41 22) 372 48 55 email: Patrick.Ruch at dim.hcuge.ch