@InProceedings{thom-bosch-ertl:2012:PAPERS, author = {Thom, Dennis and Bosch, Harald and Ertl, Thomas}, title = {Inverse Document Density: A Smooth Measure for Location-Dependent Term Irregularities}, booktitle = {Proceedings of COLING 2012}, month = {December}, year = {2012}, address = {Mumbai, India}, publisher = {The COLING 2012 Organizing Committee}, pages = {2603--2618}, url = {http://www.aclweb.org/anthology/C12-1159} }