While intelligent tutoring systems (ITSs), also called knowledge based tutors, are becoming more common and proving to be increasingly effective, each one must still be built from scratch at a significant cost. This paper discusses a number of design issues and design tradeoffs that are involved in building ITS authoring tools, and discuss knowledge acquisition and representation "lesson learne...

Executive Summary The outputs from mathematical and statistical models can be influenced by uncertainty in the estimates of the parameters used (known as parameter uncertainty) and to the methods and assumptions used to construct and link parameters in a model (known as structural uncertainty). Sensitivity analysis was applied to the current bigeye stock assessment to ascertain the influence of...

Intelligence Preparation of the Battlespace (IPB) is a predominantly “gray matter-based” fusion and information synthesis process conducted to predict possible future adversary courses of action. The purpose is to understand where the enemy is in the battlespace, and to infer what we believe he will do next. From that understanding, military commanders plan their own course of action. As the st...

The way in which we acquire and organize knowledge to construct our perception of the world is a fascinating and little understood phenomenon. Cognitive scientists have proposed and studied a wide variety of models for learning and understanding. Most of these models are inspired by the physical characteristics and biological processes that we have observed in thinking beings. Though great stri...

There is evidence that the highlighting of the same data items in different views will improve the proficiency of knowledge acquisition tasks. Making the connection for the user will reduce the cognitive load of switching from one view to another and allows making observations that would not be possible from the two separate views. However, making the connection between conceptually different v...

We present the MOLTKE workbench for technical diagnosis, a fully implemented knowledge acquisition environment which has been tested on several real world applications (e.g. fault diagnosis of CNC machining centers). MOLTKE combines different techniques of second generation expert systems (qualitative, case-based, inductive reasoning). Thus, it is able, to process knowledge from the three main ...

The reverse engineering process represents one of the best known methodologies for creating threedimensional (3D) virtual models starting from physical ones. Even if in the last few years its usage has significantly increased, the remarkable involvement of the operator has until now represented a significant constraint for its growth. Having regard to the fact that this process, and in particul...