AbstractThere have been rapid developments in model-based clustering of graphs,
also known as block modelling, over the last ten years or so. We review
different approaches and extensions proposed for different aspects in this area,
such as the type of the graph, the clustering approach, the inference approach,
and whether the number of groups is selected or estimated. We also review models
that c... hiện toàn bộ
AbstractSuccessful navigation of the Covid-19 pandemic is predicated on public
cooperation with safety measures and appropriate perception of risk, in which
emotion and attention play important roles. Signatures of public emotion and
attention are present in social media data, thus natural language analysis of
this text enables near-to-real-time monitoring of indicators of public risk
perception. ... hiện toàn bộ
Matthias Bentert, Anne-Sophie Himmel, André Nichterlein, Rolf Niedermeier
AbstractNode connectivity plays a central role in temporal network analysis. We
provide a broad study of various concepts of walks in temporal graphs, that is,
graphs with fixed vertex sets but arc sets changing over time. Taking into
account the temporal aspect leads to a rich set of optimization criteria for
“shortest” walks. Extending and broadening state-of-the-art work of Wu et al.
[IEEE TKDE... hiện toàn bộ