Search results for " network"
showing 10 items of 6428 documents
Towards Next Generation System Architecture for Emergency Services
2011
European Union has decided that all emergencies can be reported to authorities by European citizens by calling 112 or sending a text message to 112. Distributing warnings and alerts of authorities to citizens currently happens through national TV and radio channels, but telecom networks are also used now in some countries for this purpose. During the last ten years there have been attempts to develop new system architectures for various emergency service provision phases. Some of them are already deployed in special cases, like in ambulance services. Multimedia emergency alert messages can be delivered to citizens over fixed and mobile telecom networks and commercial systems are already in …
Global trends in a fragile context : public–nonpublic collaboration, service delivery and social innovation
2020
PurposeThis study aims to enhance the understanding of the nature of collaboration between public and nonpublic actors in delivering social services and achieving social innovation in a fragile context, with an emphasis on the role of civil society organisations (CSOs). The paper focuses on Bosnia and Herzegovina, a Southeastern European country which has faced a turbulent post-conflict transition and experienced challenges in its social welfare policy and practice.Design/methodology/approachThis study uses institutional theory, particularly new institutionalism and institutional networking, as a lens through which to understand public and nonpublic collaboration and social innovation withi…
Fotovoz como metodología innovadora en educación superior
2022
La adaptación al EEES ha exigido el surgimiento de metodologías activas adscritas a la educación, siendo fotovoz clave en diferentes niveles educativos. Sin embargo, la investigación en el contexto educativo, y en concreto en el de Educación Superior, es escaso. Por tanto, el objetivo de este trabajo es analizar el uso de fotovoz en educación superior, a través de una revisión sistemática basada en la Declaración PRISMA 2020 en tres bases de datos. Quince de los 408 estudios identificados cumplieron con los criterios de inclusión. Los resultados posicionan Fotovoz como una alternativa educativa con potencial en entornos de Educación Superior. The adaptation to the EHEA has demanded the emer…
Educating reflective Enterprise Systems practitioners: a design research study of the iterative building of a teaching framework
2013
This research paper reports on the iterative design of a teaching framework developed for teaching Enterprise Systems ES classes for Information Systems IS graduates. These systems embed technical complexity and create organizational challenges when implemented in organizations. Therefore, teaching good ES classes is pedagogically challenging for faculty, and ES curricula are difficult for students. We have gradually designed and rebuilt curricula and teaching frameworks over 8years. This has also resulted in a set of eight design principles. We report from our design and evaluation process and present our final artefact, the teaching framework. The aim is to educate reflective practitioner…
Stochastic models for wind speed forecasting
2011
Abstract This paper is concerned with the problem of developing a general class of stochastic models for hourly average wind speed time series. The proposed approach has been applied to the time series recorded during 4 years in two sites of Sicily, a region of Italy, and it has attained valuable results in terms both of modelling and forecasting. Moreover, the 24 h predictions obtained employing only 1-month time series are quite similar to those provided by a feed-forward artificial neural network trained on 2 years data.
The effectiveness of office information systems: a social action perspective
1991
. The purpose of this paper is to show that a number of basic issues have not been adequately addressed in existing office information systems research. Prominent among these are the nature and role of offices, the goals of office information systems development, and the nature of its organizational and managerial consequences. It is proposed that office information systems should be analysed as social action systems the behaviour of which is strongly affected by socially determined forces and constraints such as the behaviour-channelling influences of authority, norms, customs, habits and precedence. Four types of social action are discussed: instrumental, strategic, communicative and disc…
Functional Type Error Control for Stabilised Space-Time IgA Approximations to Parabolic Problems
2018
The paper is concerned with reliable space-time IgA schemes for parabolic initial-boundary value problems. We deduce a posteriori error estimates and investigate their applicability to space-time IgA approximations. Since the derivation is based on purely functional arguments, the estimates do not contain mesh dependent constants and are valid for any approximation from the admissible (energy) class. In particular, they imply estimates for discrete norms associated with stabilised space-time IgA approximations. Finally, we illustrate the reliability and efficiency of presented error estimates for the approximate solutions recovered with IgA techniques on a model example.
Noise-tolerant efficient inductive synthesis of regular expressions from good examples
1997
We present an almost linear time method of inductive synthesis restoring simple regular expressions from one representative (good) example. In particular, we consider synthesis of expressions of star-height one, where we allow one union operation under each iteration, and synthesis of expressions without union operations from examples that may contain mistakes. In both cases we provide sufficient conditions defining precisely the class of target expressions and the notion of good examples under which the synthesis algorithm works correctly, and present the proof of correctness. In the case of expressions with unions the proof is based on novel results in the combinatorics of words. A genera…
Disorder and interactions in systems out of equilibrium : the exact independent-particle picture from density functional theory
2017
Density functional theory (DFT) exploits an independent-particle-system construction to replicate the densities and current of an interacting system. This construction is used here to access the exact effective potential and bias of non-equilibrium systems with disorder and interactions. Our results show that interactions smoothen the effective disorder landscape, but do not necessarily increase the current, due to the competition of disorder screening and effective bias. This puts forward DFT as a diagnostic tool to understand disorder screening in a wide class of interacting disordered systems.
Dynamical Models of Interrelation in a Class of Artificial Networks
2020
The system of ordinary differential equations that models a type of artificial networks is considered. The system consists of a sigmoidal function that depends on linear combinations of the arguments minus the linear part. The linear combinations of the arguments are described by the regulatory matrix W. For the three-dimensional cases, several types of matrices W are considered and the behavior of solutions of the system is analyzed. The attractive sets are constructed for most cases. The illustrative examples are provided. The list of references consists of 12 items.