abstraCt The concept of e-services has gained increasing use lately. There is, however, no general agreement as to the precise meaning and scope of the term. The research purpose of the present article is, therefore, to discuss the e-service concept, its strengths and scope, and thereby contribute to the general understanding and definition of the term. Furthermore, the article aims at examinin...

The paper analyzes management practices as reflexive practices based on transactive knowledge (Brauner, 2002). It relates the concept of transactive knowledge systems to central concepts of structuration theory (Giddens, 1984), namely structuration and the duality of structure. Structuration theory provides a practice-based foundation of the concept of transactive knowledge systems. It sheds li...

This paper proposes a model for measuring risks for derivatives that is easy to implement and satisfies a set of four coherent properties introduced in Artzner et al. (1999). We construct our model within the context of Gerber-Shiu’s option-pricing framework. A new concept, namely Bayesian Esscher scenarios, which extends the concept of generalized scenarios, is introduced via a random Esscher ...

We explain the current version of a conceptual dictionary containing two hierarchies of verb concepts and noun concepts to be functioned in our narrative generation system. It is used for operating naturalness or validity of generated events and realizing or adjusting the intentional defamiliarization. Namely, this dictionary is a mechanism to be able to flexibly adjust a variety of generation ...

In this paper we propose a new approach based on formal concept analysis (FCA) for community detection in social networks. We propose GroupNode modularity function which improves a partial detection method proposed by Falzon by taking into account the whole of actors in the social network. We name our approach GNOM-FCA for GroupNOde Modularity combined with Formal Concept Analysis approach. In ...

According to Olson’s concept of encompassing organizations, strong two-party, plurality oriented political systems should create more ‘responsible’ public policies than ‘weak’ multi-party governments based on proportional representation. An empirical measure of ‘encompassment’, termed popular cabinet support, is developed and tested in a multivariate controlled statistical analysis of 18 indust...

We develop Integer Programming (IP) solutions for some special college admission problems arising from the Hungarian higher education admission scheme. We focus on four special features, namely the solution concept of stable score-limits, the presence of lower and common quotas, and paired applications. We note that each of the latter three special feature makes the college admissions problem N...

We present a framework for sensor-based motion planning of robotic manipulators using a topology representing network (TRN). Exploiting the perfectly topology preserving features of the network, the algorithm learns the representation of the Perceptual Control Manifold (PCM), a recently introduced concept for motion planning. This concept allows sensors to be integrated into robot motion planni...

This chapter introduces the basic concepts of medical informatics: data, information, and knowledge. Data are classified into various types and illustrated by concrete medical examples. The concept of knowledge is formalized in the framework of a language related to objects, properties, and relations within ontology. Various aspects of knowledge are studied and illustrated on examples dealing w...

We propose a notion of deterministic association rules for ordered data. We prove that our proposed rules can be formally justified by a purely logical characterization, namely, a natural notion of empirical Horn approximation for ordered data which involves background Horn conditions; these ensure the consistency of the propositional theory obtained with the ordered context. The whole framewor...