We demonstrate how one can use the formal concept analysis (FCA) to obtain the role hierarchy for the role based access control from the existing access control matrix. We also discuss assesed by means of FCA the quality of security system and finding users with excess permissions.

The development of different forms of measurement models for impedance has allowed examination of key assumptions on which the use of such models to assess error structure are based. The stochastic error structures obtained using the transfer-function and Voigt measurement models were identical, even when non-stationary phenomena caused some of the data to be inconsistent with the Kramers–Kroni...

A human intervention is essential for human-machine system and human operator’s skill affects deeply achievement of the control purpose. By keeping the human operation easy, an operator can concentrate on more advanced decision so that the operation performance is improved. In this paper, a new concept of human-oriented compensator is proposed for improving the human-machine system, which is na...

Studies on chemical structure and vitamin activity have an archaic tang, redolent of the pioneering days of vitamin research, and interest in them has long waned for most vitamins. Vitamin A is an exception, partly because its molecular mode of action (apart from in the visual pigments) is uncertain, but largely because the concept of vitamin A activity has not remained static. The traditional ...

The SLAC Damped Detuned Structure (DDS) is an accelerator structure designed to suppress the long range transverse wakefields which limit the performance of high current multibunch accelerators. We discuss the conceptual considerations which have led to its development and discuss the steps involved in arriving at a design ,. Paper presented at the 1997 Particle Accelerator Conference Vancouver...

Discovering automatically the semantic structure of tagged visual data (e.g. web videos and images) is important for visual data analysis and interpretation, enabling the machine intelligence for effectively processing the fast-growing amount of multi-media data. However, this is non-trivial due to the need for jointly learning underlying correlations between heterogeneous visual and tag data. ...

The purpose of this paper is to show the way of automatic building construction using specially designed modules. The modules are not only building blocks of the structure, but have function of automatic assemble controlled by a robot, which is also specially designed for handling the module. The shape of module is suitable for easy alignment, and automatic connection mechanism is equipped for ...

Personalized study planning framework consists four graphs for personalized study planning: a graph representing a conceptual structure of study program; a graph representing study course; a graph visualizing each topic of study course using concept map; a graph representing learning objects. This paper describes third graph – a graph for study course topic structure displaying and knowledge as...

Título: La estructura del Cuestionario de Autoconcepto Social (AUSO). Resumen: Este estudio tiene por objeto analizar la estructura factorial del Cuestionario de Autoconcepto Social (AUSO), de nueva creación, compuesto por las escalas de responsabilidad social y de competencia social. De la revisión tanto de las teorías del desarrollo social humano como de anteriores intentos de medida del auto...

We propose a method to align different ontologies in similar domains and then define correspondence between concepts in two different ontologies using the SKOS model. Introduction. Recently ontologies are created to provide knowledge representation. They use common representation languages such as OWL, but there are many heterogeneous ontologies [1–3]. In this paper we first propose a lexical a...