We describe an approach to intelligent user interfaces, based on the idea of making the computer a collaborator, and an application-independent technology for implementing such interfaces.

C. Furniture, Fixtures and Equipment: Effective for 1996 the Association Furniture, fixtures and equipment are has changed its method of accounting stated at cost, less accumulated depreciation.

Creativity is sometimes taken to be an inexplicable aspect of human activity. By summarizing a considerable body of literature on creativity, I hope to show how to turn some of the best ideas about creativity into programs that are demonstrably more creative than any we have seen to date. I believe the key to building more creative programs is to give them the ability to reflect on and modify their own frameworks and criteria. That is, I believe that the key to creativity is at the metalevel.

The Council encouraged Science and Engineering Fair, to be sometimes after an appropriate the Conference Committee to gather held May 8-10 in San Jose. Carol asked waiting period agreeable to our copublisher, extensive feedback after the 2002 conference for a volunteer to replace Mel Montemerlo The MIT Press. The Council voted to gauge how well this new as the coordinator of the judging in favor of reaffirming this policy format was received.

Deployed applications are three-dimensional scenes, speech input Rapid Development of a systems that have been in use for at for information access, multimodal Course-of-Action Critiquer," by Gheorghe least several months by individuals or dialog, machine learning in engineering Tecuci, Mihai Boicu, Mike Bowman, organizations other than their developers, design, ontologies, agent models, and Dorin Marcu, describes a critiquing have measurable benefits, and and case-based reasoning.

Fast-forward (FF) was the most successful automatic planner in the Fifth International Conference on Artificial Intelligence Planning and Scheduling (AIPS '00) planning systems competition. Like the well-known hsp system, FF relies on forward search in the state space, guided by a heuristic that estimates goal distances by ignoring delete lists. It differs from HSP in a number of important details. This article describes the algorithmic techniques used in FF in comparison to hsp and evaluates their benefits in terms of run-time and solution-length behavior. Humans have a remarkable capability to perform a wide variety of physical and mental tasks without any measurements and any computations. Familiar examples are parking a car, driving in city traffic, playing golf, cooking a meal, and summarizing a story. In performing such tasks, humans use perceptions of time, direction, speed, shape, possibility, likelihood, truth, and other attributes of physical and mental objects. Reflecting the bounded ability of the human brain to resolve detail, perceptions are intrinsically imprecise. In more concrete terms, perceptions are f-granular, meaning that (1) the boundaries of perceived classes are unsharp and (2) the values of attributes are granulated, with a granule being a clump of values (points, objects) drawn together by indistinguishability, similarity, proximity, and function. For example, the granules of age might be labeled very young, young, middle aged, old, very old, and so on. F-granularity of perceptions puts them well beyond the reach of traditional methods of analysis based on predicate logic or probability theory. The computational theory of perceptions (CTP), which is outlined in this article, adds to the armamentarium of AI a capability to compute and reason with perception-based information. The point of departure in CTP is the assumption that perceptions are described by propositions drawn from a natural language; for example, it is unlikely that there will be a significant increase in the price of oil in the near future. In CTP, a proposition, p, is viewed as an answer to a question, and the meaning of p is represented as a generalized constraint. To compute with perceptions, their descriptors are translated into what is called the generalized constraint language (GCL). Then, goal-directed constraint propagation is utilized to answer a given query. A concept that plays a key role in CTP is that of precisiated natural language (PNL). The computational theory of perceptions suggests a new direction in AI -- a direction that might enhance the ability of AI to deal with realworld problems in which decision-relevant information is a mixture of measurements and perceptions. What is not widely recognized is that many important problems in AI fall into this category.

Built on seven hills, with unmatched mountain and water views, the wealth of natural beauty in and around Seattle astonishes first-time visitors. Olympic Mountains are to the west. The Washington State Convention 01 is cosponsored by AAAI. Ballard Locks, and the new Experience Approach for Representing Uncertainty" quantity, provided that the use of The monorail by Joseph Y. Halpern, Cornell such excerpts is personal and does not Space Needle and the Experience Music Agents in Adversarial Environments" program is included in your There will IJCAI will welcome three collocated next year and beyond. AI Journal, please contact membership@aaai.org

Unlike and Exhibition, held 30 July to 3 other contests over the years, there were no August 2000 in Austin, Texas. This year's event artificial walls or constraints in this brought six contest teams and nine exhibition event--the robots had to interact with regular teams from the United States and Canada. Robots were judged on to compete and demonstrate state-ofthe-art the quality of their interactions, coverage, research in robotics and AI (figure 1). An article by the winning team, The competition and exhibition is actually which better describes their approach and made up of multiple events: several contests, a robot, can be found in this issue of AI Magazine. Kortenkamp, Nourbakhsh, and Hinkle (1997); In January 2000, a suggestion was made to Arkin (1998); and Meeden et al. (2000).

The Fourth Robotic Soccer World Championships (RoboCup-2000) was held from 27 August to 3 September 2000 at the Melbourne Exhibition Center in Melbourne, Australia. In total, 83 teams, consisting of about 500 people, participated in RoboCup-2000, and about 5000 spectators watched the events. RoboCup-2000 showed dramatic improvement over past years in each of the existing robotic soccer leagues (legged, small size, mid size, and simulation) and introduced RoboCup Jr. competitions and RoboCup Rescue and Humanoid demonstration events. The RoboCup Workshop, held in conjunction with the championships, provided a forum for the exchange of ideas and experiences among the different leagues. This article summarizes the advances seen at RoboCup-2000, including reports from the championship teams and overviews of all the RoboCup events.

The researcher will be numerous international societies and IJCAI-01/IJCAI-03 Update. Planning required to sign a statement of restricted conferences. Barbara Grosz agreed to for IJCAI-01 is well under way.