We investigate whether an overall student disengagement label and six different labels of disengagement type are predictive of learning in a spoken dialog computer tutoring corpus. Our results show first that although students’ percentage of overall disengaged turns negatively correlates with the amount they learn, the individual types of disengagement correlate differently with learning: some ...

This paper describes how the Dokeos e-learning system was installed and implemented, and then extended to enable highly-interactive adaptive e-learning, where students are heavily involved in creating multimedial learning materials, which are adapted in accordance with student targeted knowledge level and student interests for various topics.

The adaptive educational systems within e-learning platforms are built in response to the fact that the learning process is different for each and every learner. In order to provide adaptive e-learning services and study materials that are tailor-made for adaptive learning, this type of educational approach seeks to combine the ability to comprehend and detect a person’s specific needs in the c...

Multimedia learning principle occurs when we create mental representations from combining text and relevant graphics into lessons. This article discusses the learning advantages that result from adding multimedia learning principle into instructions; and how to select graphics that support learning. There is a balance that instructional designers have to keep in mind when using multimedia princ...

This paper considers two flexible classes of omnibus goodness-of-fit tests for the inverse Gaussian distribution. The test statistics are weighted integrals over the squared modulus of some measure of deviation of the empirical distribution of given data from the family of inverse Gaussian laws, expressed by means of the empirical Laplace transform. Both classes of statistics are connected to t...

One aspect of Fisher’s work which has puzzled a great many statisticians is the idea of Fiducial Inference. Using “pivotal” variables, Fisher moves from logical statements about restrictions of parameter spaces to probabilistic statements about parameters. The method works, but with a lot of caveats: the pivotal variables must be sufficient statistics, must be continuous, &c. Dempster’s explora...

To close the gap between knowledge level and symbol level, the MODEL-K language allows to specify KADS conceptual models and to refine them to operational systems. Since both activities may be arbitrarily interleaved, early prototyping is supported at the highest level. Systems written in MODEL-K contain their conceptual model, making them more transparent, easier to communicate to the expert, ...