The article analyzes the linguistic nature of some nuclear lexemes (power, control, authority, influence) verbalizing the basic concept of the English-language political discourse – the concept of “Power”. The paper reveals the structure of the concept, its conceptual features, as well as the main characteristics of the concept representatives at the language and functional levels.

Traditionally, concepts are assumed to be situational invariant mental knowledge entities (conceptual stability), which are represented in a unitary brain system distinct from sensory and motor areas (amodality). However, accumulating evidence suggests that concepts are embodied in perception and action in that their conceptual features are stored within modality-specific semantic maps in the s...

This paper describes a conceptual model for attribute aggregation that allows a service provider (SP) to authorise a user’s access request based on attributes asserted by multiple identity providers (IdPs), when the user is known by different identities at each of the IdPs. The user only needs to authenticate to one of the IdPs and the SP is given an overall level of assurance (LoA) about the a...

The work analyses typical uses of attribute-like relations in conceptual graphs and identifies general sources of failure to convey intended meaning. These include relations that do not contain a semantic bond between their arguments, semantically superfluous concept types, and confusion between first-order and second-order levels. The analysis focuses on the semantics of physical quantities an...

A prototype design tool-chain (VARDA) for the ARD hierarchical rule design method is presented in the paper. It is implemented in the Unix environment using Prolog and Graphviz for design visualization. 1 Rule Design with ARD+ The HeKatE project (hekate.ia.agh.edu.pl) aims at providing design methods and tools that support a rule-based systems design process. Currently HeKatE supports a concept...

Among various models like TSQL2, XML and SQL:2003 for temporal databases, TSQL2 is perhaps the most comprehensive one and introduces new constructs for temporal query support. However, these constructs mask the user from the underlying conceptual model and essentially provides a “black box” flavour. Further, the temporal attributes are not directly accessible. In this paper, we propose a “chron...

A key issue in learning from observations is to build a classification of given objects or situations. Conceptual clustering methods address this problem of recognizing regularities among as set of objects that have not been pre-classified, so as to organize them into a hierarchy of concepts. Early approaches have been limited to unstructured domains, in which objects are described by fixed set...