- W. Hersh, Jamie Callan, Y. Maarek, M. Sanderson. 2012. Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval. Abstract: We are delighted to welcome you to the 35th edition of SIGIR, the ACM International Conference on Research and Development in Information Retrieval. The conference continues its tradition of being the premier forum for research and development information retrieval, the computer science discipline behind what many call "search". The high number of submitted papers, this year again, demonstrates both the breadth and depth of the research being done in this vibrant field, both in academia and industry. We have done our best to ensure that these papers meet high standards of quality in terms of technical contribution, innovation, presentation, reference to previous work, and methodology. At the same time, we have tried to be flexible in the application of these criteria in order to consider papers describing novel and innovative work that may be somewhat unconventional. 
