Gregory Piatetsky-Shapiro is Senior Member of Technical Staff and Principal Investigator of the Knowledge Discovery Project at GTE Laboratories.

William Frawley is Dean of the Columbian College of Arts and Science at George Washington University, where he is also Professor of Anthropology and Psychology. Prior to that he was Professor and Chair in the Department of Linguistics and Director of Cognitive Science at the University of Delaware, where he was also Faculty Director for Academic Programs and Planning and Director of the University's Office of Undergraduate Studies. His previous books include "Vygotsky and Cognitive Science: Language and the Unification of the Social and Computational Mind "(1997). Kenneth Hill is Research Associate in the Bureau of Applied Research in Anthropology and in the Department of Linguistics at the University of Arizona. His previous publications include "Hopi Dictionary/HoIikwa Lavytutuveni: A Hopi-English Dictionary of the Third Mesa Dialect "(1998), for which he was editor-in-chief. Pamela Munro is Professor of Linguistics at the University of California, Los Angeles. She is coauthor of "Chickasaw: An Analytic Dictionary "(1994), among other publications.