We consider a model for an infectious disease in the onset of an outbreak. We introduce contact tracing incorporating a tracing delay. The effect of randomness in the delay and the effect of the length of this delay in comparison to the infectious period of the disease respectively to a latency period on the effect of tracing, given e.g. by the change of the reproduction number, is analyzed. We...

AbstractEach year, thousands of people learn new visual categorization tasks – radiologists to recognize tumors, birdwatchers distinguish similar species, and crowd workers how annotate valuable data for applications like autonomous driving. As humans learn, their brain updates the features it extracts attend to, which ultimately informs final classification decisions. In this work, we propose ...

Knowledge tracing has been used to predict students’ knowledge and performance for almost twenty years. Recently, researchers have become interested in looking at students’ behaviors, especially those considered gaming behaviors. In this work, we attempt to leverage a variation of knowledge tracing to predict gaming behaviors without damaging the prediction of performance. We compare the predic...

In this paper, we compose six different Python and Prolog VMs into 4 pairwise compositions: one using C interpreters; one running on the JVM; one using meta-tracing interpreters; and one using a C interpreter and a meta-tracing interpreter. We show that programs that cross the language barrier frequently execute faster in a meta-tracing composition, and that meta-tracing imposes a significantly...