32 research outputs found
Towards a generalisation of formal concept analysis for data mining purposes
In this paper we justify the need for a generalisation of Formal
Concept Analysis for the purpose of data mining and begin the
synthesis of such theory. For that purpose, we first review semirings and
semimodules over semirings as the appropriate objects to use in abstracting
the Boolean algebra and the notion of extents and intents, respectively.
We later bring to bear powerful theorems developed in the field
of linear algebra over idempotent semimodules to try to build a Fundamental
Theorem for K-Formal Concept Analysis, where K is a type of
idempotent semiring. Finally, we try to put Formal Concept Analysis in
new perspective by considering it as a concrete instance of the theory
developed
Post-Socialist Self-Censorship:Russia, Hungary and Latvia
This article argues that today in Central and Eastern Europe self-censorship, journalistic freedom and autonomy are just as severely affected by economic constraints, oligarchic influences and new authoritarianism as they are by their Communist pasts. Either way, journalists know exactly what to report, what to omit and how to advance their careers. This is reminiscent of adekvatnostâ; a distinct strategy employed by Russian journalists, who regard this skill as an expression of professionalism. It implies having a âfeel for the gameâ and the âright instinctâ, which allows them to enjoy a certain level of freedom in their work and express their creativity. The authorsâ interviews with Latvian and Hungarian journalists, editors and producers examined the extent to which adekvatnostâ might be a feature of journalism beyond Russia, in particular when a media system faces rising populism and authoritarianism, paired with oligarch-dominated ownership. As such, knowledge gained about journalistic practices in the countries under investigation might also be useful in understanding media development beyond the post-Communist space, including Western Europe