Blogs are probably most associated with the high profile postings of a few highly popular bloggers who debate or comment on major news stories, but for each ‘A-lister’ there are numerous faceless bloggers who write about their own daily lives and/or interests. Hence it is interesting to investigate the extent to which an event with extensive media coverage, such as the London attacks, is reflec...

Allegories are enriched categories generalizing a category of sets and binary relations. In this paper, we extend a new, recently-introduced conceptual data model based on allegories by adding support for modal operators and developing a modal interpretation of the model in any allegory satisfying certain additional (but natural) axioms. The possibility of using different allegories allows us t...

We consider philanthropy by college alums from an innovative and provocative perspective: what if prospective college students were considered members of asset classes with different risk-return combinations? Using forty years of merged admissions-philanthropy records on students at a highly selective liberal arts college, we estimate the simple financial model that this allegory implies. We fi...