Introduction to the special issue on intelligent user interfaces

Recent years have witnessed significant progress in intelligent user interfaces. Emerging from the intersection of Al and human-computer interaction, research on intelligent user interfaces is experiencing a renaissance, both in the overall level of activity and in raw research achievements. Research on intelligent user interfaces exploits developments in a broad range of foundational Al work, ranging from knowledge representation and computational linguistics to planning and vision. Because intelligent user interfaces are designed to facilitate problem-solving activities where reasoning is shared between users and the machine, they are currently transitioning from the laboratory to applications in the workplace, home, and classroom.