We describe two efficient on-line algorithms to simplify weighted graphs by eliminating degree-two vertices. Our algorithms are on-line in that they react to updates on the data, keeping the simplification up-to-date. The supported updates are insertions of vertices and edges; hence, our algorithms are partially dynamic. We provide both analytical and empirical evaluations of the efficiency of ...

In this paper we show how the deployment of a lightweight note sharing system can restore the antique social vocation of annotations in the classroom. The system was designed for the classroom context and evaluated through a longitudinal study lasting for an academic semester and involving 20 participants, enrolled in a Master-level course in computer science. Three key findings emerged. First,...

Abstract This article discusses triad transfer analysis via quadratic nonlinearity. To avoid fictitious interactions, symmetrization of the is reviewed, including arbitrary orthogonal decomposition and coarse graining. The directional representation symmetrized proposed by minimizing number edges in a network graph interactions with keeping energy consistency. simplifies visualization allows us...

Some teachers adopt a blended learning model that combines traditional classroom teaching and an e-learning system. In this model, a teacher may teach the first few sessions in a classroom. After the students have established a general idea of the course, they can then proceed to on-line learning and interaction. This study aimed to discover the relationship between learning records and the lea...

Knowledge monitoring is an important metacognitive process which can help students improve study habits and thereby increase academic performance. Which is more useful in predicting test performance: knowing what you know, or knowing what you do not know? Two distinct constructs of knowledge monitoring calibration, sensitivity and specificity, were used along with the more traditional Gamma to ...

Usually, higher education teachers have to deal with highly populated classes and low levels of motivation. Making more entertaining courses is a good way to overcome these limitations. But, how can fun and entertainment be introduced in a course which is mainly based on a final exam evaluation? We propose a new methodology based on two key ideas: (i) replacing the final exam with a series of a...

This report is part of the NSPCC's Impact and Evidence series, which presents the findings of the Society's research into its services and interventions. Many of the reports are produced by the NSPCC's Evaluation department, but some are written by other organisations commissioned by the Society to carry out research on its behalf. The aim of the series is to contribute to the evidence base of ...