SIGDAT Ken Church, David Yarowsky SIGDAT is ACL's special interest group for linguistic data and corpus-based approaches to NLP. In 2001, SIGDAT organized the 2-day Conference on Empirical Methods in Natural Language Processing (EMNLP-2001). The meeting was held immediately prior to NAACL-2001 at Carnegie Mellon University in Pittsburgh, Pennsylvania on June 3 and 4. Lillian Lee served as conference chair and Donna Harman served as conference co-chair. 21 papers were accepted for presentation out of 65 submissions, consistent with the typical 25-32% acceptance rate of SIGDAT conferences and workshops. Approximately 200 people attended EMNLP-2001, and the conference yielded a $6000 surplus based on preliminary post-conference accounting. The theme of the conference was "What Works and What Doesn't: Successes and Challenges". Eric Brill of Microsoft Research gave an invited talk on the subject "Paucity Shmaucity -- What Can We Do With A Trillion Words?". Two panels were held, one on the topic of "When Does EM Work?" (with Eugene Charniak, Kevin Knight, Ted Pedersen, and Stefan Riezler) and one on "What Works and What Doesn't: Industrial Perspectives" (with Adam Berger, David Evans, Joshua Goodman, and Lynette Hirschman). Generous sponsorship was provided by the Intelligent Information Systems Institute (a joint Cornell University/Air Force Research Laboratory organization).