The first International Conference on Intelligent Tutoring Systems (ITS) was held ten years ago in Montreal (ITS '88). It was so well received by the international community that the organizers decided to do it again in Montreal four years later, in 1992, and then again in 1996. ITS '98 differs from the previous ones in that this is the first time the conference has been held outside of Montreal, and it's only been two years (not four) since the last one. One interesting aspect of the ITS conferences is that they are not explicitly bound to some organization (e.g., IEEE or AACE). Rather, the founder of these conferences, Claude Frasson, started them as a means to congregate researchers actively involved in the ITS field and provide a forum for presentation and debate of the most currently challenging issues. Thus the unifying theme is science. This year's "hot topics" differ from those in the earlier ITS conferences as they reflect ever changing trends in ITS research. A few of the issues being examined at ITS '98 include: Web based tutoring systems, deploying ITS in the real world, tutoring and authoring tools, architectures, and knowledge structure and representation.

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Invited Presentations.- Instructional Applications of ACT: Past, Present, and Future.- Teaching Expertise and Learning Environments.- Hanging by Two Threads: The Evolution of Intelligent Tutoring Systems Research.- My Knowledge of Knowledge.- Cognitive Tools to Support Discovery Learning.- Architectures for ITS.- Using a Learning Agent with a Student Model.- Model-Based Explanations in Simulation-Based Training.- Towards an Intelligent Tutoring System for Situation Awareness Training in Complex, Dynamic Environments.- Embedded Training for Complex Information Systems.- Macro-Definitions, a Basic Component for Interoperability between ILEs at the Knowledge Level : Application to Geometry.- Modeling the Knowledge-Based Components of a Learning Environment within the Task/Method Paradigm.- Design and Interface Issues.- Deconstructing a Computer-Based Tutor: Striving for Better Learning Efficiency in Stat Lady.- Habitable 3D Learning Environments for Situated Learning.- Motivation Diagnosis in Intelligent Tutoring Systems.- Some Reasons Why Learning Science is Hard: Can Computer Based Law Encoding Diagrams Make It Easier?.- Curriculum Evaluation : A Case Study.- Tutoring and Authoring Tools.- A Bottom-Up Approach to Multimedia Teachware.- The Authoring Assistant.- Explanatory Mechanisms for Intelligent Tutoring Systems.- DNA - Uncorking the Bottleneck in Knowledge Elicitation and Organization.- Evaluating Subject Matter Experts' Learning and Use of an ITS Authoring Tool.- Component-Based Construction of a Science Learning Space.- Collaborative Learning.- 'Do It Yourself' Student Models for Collaborative Student Modelling and Peer Interaction.- Promoting Effective Peer Interaction in an Intelligent Collaborative Learning System.- Using Induction to Generate Feedback in Simulation Based Discovery Learning Environments.- An Interactive Graphical Tool for Efficient Cooperative Task Acquisition Based on Monaco-T Model.- Learning in the Workplace: Initial Requirements of a Lessons Learned Centred Corporate Memory.- Knowledge Structure and Representation.- An ITS for Dutch Punctuation.- Cognitive Task Analysis in Service of Intelligent Tutoring System Design: A Case Study in Statistics.- Diagrammatic Reasoning for Geometry ITS to Teach Auxiliary Line Construction Problems.- Providing Feedback to Equation Entries in an Intelligent Tutoring System for Physics.- Using Automatic Methods for Structuring Conceptual Knowledge in Intelligent Learning Environments.- Two-Phase Updating of Student Models Based on Dynamic Belief Networks.- Teaching and Learning Strategies.- Teaching and Learning with Intelligent Agents: Actors.- Self-organized Goal-Oriented Tutoring in Adaptive Hypermedia Environments.- Ecolab: Exploring the Construction of a Learning Assistant.- Information Types and Cognitive Principles in Program Comprehension: Towards Adaptable Support for Novice Visual Programmers.- A Domain Theory Extension of a Student Modeling System for Pascal Programming.- Applications of ITS.- The Foundations and Architecture of Autotutor.- Verbal Coaching during a Real-Time Task.- Successful Use of an Expert System to Teach Diagnostic Reasoning for Antibody Identification.- Combatting Shallow Learning in a Tutor for Geometry Problem Solving.- A Formative Evaluation of the PACT Algebra II Tutor: Support for Simple Hierarchical Reasoning.- Student Modeling.- Evaluation of Data Aging: A Technique for Discounting Old Data during Student Modeling.- Student Modelling by Case Based Reasoning.- Tutoring Prolog Novices Based on Programming Techniques.- Experiences in Implementing Constraint-Based Modeling in SQL-Tutor.- A Practical Approach to Bayesian Student Modeling.- Student Modeling from Conventional Test Data: A Bayesian Approach without Priors.- Educational Agents.- Toward a Unification of Human-Computer Learning and Tutoring.- Developing Intelligent Educational Agents with the Disciple Learning Agent Shell.- An Instructor's Assistant for Team-Training in Dynamic Multi-agent Virtual Worlds.- Visual Emotive Communication in Lifelike Pedagogical Agents.- Incorporating Personality into a Multi-agent Intelligent System for Training Teachers.- Deploying ITS.- The Intelligent Helpdesk: Supporting Peer-Help in a University Course.- On the Notion of Components for Intelligent Tutoring Systems.- An Intelligent Tutoring System for Teaching Formal Languages.- Elaborating Models of Algebraic Expression-Writing.- AVATAR: An Intelligent Air Traffic Control Simulator and Trainer.- An Advanced Embedded Training System (AETS) for Tactical Team Training.- Web-Based ITS.- Creating More Versatile Intelligent Learning Environments with a Component-Based Architecture.- Goal-Based Autonomous Social Agents: Supporting Adaptation and Teaching in a Distributed Environment.- Curriculum Sequencing in a Web-Based Tutor.- Vincent, an Autonomous Pedagogical Agent for On-the-Job Training.- LANCA : A Distance Learning Architecture Based on Networked Cognitive Agents.- Poster Papers.- The Extension of an Actor Language from Domain-Specific Requirements.- A Classification System for Web-Based Training.- An Interactive Intelligent Tutoring System with Tutorials Generation and English-Malay Translation Abilities.- WinKE: A Pedagogic Tool for Teaching Logic and Reasoning.- Thai Learning System on the WWW Using Natural Language Processing and ITS Evaluation.- Flexible ILE Development: Case Studies of an Agent-Based Software Engineering Approach.- Declarative Mark-Up Languages as a Tool for Developing Educational Hypermedia.- Multi-agent Based Pedagogical Games.- The SYSTEMIONS: Agents to Design Intelligent Tutoring Systems.- An Intelligent Learning Environment for Data Modeling.- Lessons Learned in Developing Simulation-Based Expert Systems for Troubleshooting Training.- Adult Learning and University Aviation Education.- Integrating the CITS and CSCL Paradigms for the Design of an Effective Collaborative Learning System.- Cognitive Diagnosis in ITS Using General Pedagogical Rules.- Coaching Software Skills on the Job: Laying the Groundwork.- The F-16 C Shop Maintenance Skills Tutor.- Using Bayesian Networks to Build and Handle the Student Model in Exercise-Based Domains.- SERAC : A Multi-agent System for the Evaluation and Revision of Knowledge in ITS.- MIS-Tutor: An ITS in Support of IS Mastery Learning.- Modeling the Cognitive Effects of Participative Learner Modeling.- Cognitive Measures for Visual Concept Teaching with Intelligent Tutoring Systems.- GURU: A Self-extending Tutor Model for Pascal Programming.- Computational Instructional Design for Construction of Adaptive Tutors in Real Time from Distributed Learning Objects.- Influence of Didactic and Computational Constraints on ILE Design.- Panels.- Methodologies for Tuto…