Practical, object-based knowledge representation for knowledge-based systems

摘要

Object-based knowledge representation systems are systems expressly designed for representing knowledge in the form of objects and classes. These systems derive their behavior from a formal specification of the meaning of objects and classes and, because of this firm representational foundation and their increased expressive power, are better suited for providing representation services for knowledge-based systems than are object-oriented programming systems. However, object-based knowledge representation systems are hard to implement correctly, and also suffer from tractability problems. These problems can be circumvented by using a weaker semantics, resulting in practical object-based knowledge representation systems for use in knowledge-based systems.