In the context of growing vulnerabilities, cyber-risk management cannot rely on a one-off approach, instead calling for continuous re-assessment risk and adaptation strategies. Under mixed investment–insurance where both mitigation transfer are employed, implies re-computation optimal amount to invest in security over time. this paper, we deal with problem computing balance between investment i...

This paper aims to cast light on contemporary migration rhetoric by integrating historical discourse analysis. I focus continuity and change in conventionalised metaphorical framings of emigration immigration the UK-based Times newspaper from 1800 2018. The findings show that some metaphors persist throughout 200-year time period (liquid, object), are more recent form (animals, invader, weight)...

Topic models have proved useful for analyzing large clusters of documents. Most models developed, however, have paid little attention to the analysis of the latent topics themselves, particularly with regards to change in their correlation over time. We present a novel, probabilistically well-founded extension to Latent Dirichlet Allocation (LDA) which can explicitly model topic drift over time...