Search results for "programming."

Embedding the Remote Application Control: Visual API for PDA Programming

2009

PDAs are more and more used as advanced adaptive HEI (human-environment interaction) interfaces, thus enabling their users to easily operate applications remotely running in pervasive computing scenarios. Based on a previous implementation, in this paper we discuss the development of a new set of .NET-compliant Application Programming Interfaces to be used within the Visual Studio IDE. Our main goal is to provide programmers with a set of components to be used with the common drag-and-drop operation, in order to embed a remote application control within an application running on the PDA and vice-versa. The interaction relies on ad-hoc communication protocols over a framework devoted to pair…

Pervasive access to MRI bias artifact suppression service on a grid.

2009

Bias artifact corrupts magnetic resonance images in such a way that the image is afflicted by illumination variations. Some of the authors proposed the Exponential Entropy Driven - Homomorphic Unsharp Masking (E2D-HUM) algorithm that corrects this artifact without any a priori hypothesis about the tissues or the Magnetic Resonance image modality. Moreover, E2D-HUM does not care about the body part under examination and does not require any particular training task. People who want to use this algorithm, which is Matlab-based, have to set their own computers in order to execute it. Furthermore, they have to be Matlab-skilled to exploit all the features of the algorithm. In our work we propos…

High sensitivity of northern pike larvae to UV-B but no UV-photoinduced toxicity of retene

2003

In order to investigate whether increased UV-B radiation is a risk factor, a series of acute laboratory experiments was conducted with larval stages of the northern pike (Esox lucius L.), hatching in Nordic waters in May. Further, a comparative investigation on the acute phototoxicity of retene (7-isopropyl-1-methylphenanthrene), a PAH compound recently revealed to posses UV-B-induced phototoxicity in larval coregonids, was conducted with pike larvae. In semi-static experiment, larvae were pre-exposed to retene (3, 9, 30 and 82 microg/g), with relevant controls, for 24 h and then irradiated for 3 h once a day (two consecutive days) with three UV-B doses (CIE-weighted 1.0, 1.8 or 2.7 kJ/m2 p…

PRINCIPIO ANTIDISCRIMINATORIO Y DETERMINACIÓN DE LA DESVENTAJA

2013

El artículo examina algunos de los límites del derecho antidiscriminatorio en su actual configuración, a partir de las grandes tendencias que le dan soporte desde el punto de vista legislativo y jurisprudencial. El texto plantea una reflexión sobre los principios interpretativos tradicionales y los problemas de incorporación en el juicio de igualdad de estándares de orden explicativo y justificatorio que permitan captar los patrones o estructuras sociales de discriminación e identificar de forma más precisa a los sujetos. A tal efecto propone la ampliación del espectro argumental de la discriminación indirecta y la igualdad material, a través de criterios interpretativos adicionales derivad…

Unified Modeling Language

2005

Mature engineering disciplines are generally characterized by accepted methodical standards for describing all relevant artifacts of their subject matter. Such standards not only enable practitioners to collaborate, but they also contribute to the development of the whole discipline. In 1994, Grady Booch, Jim Rumbaugh, and Ivar Jacobson joined together to unify the plethora of existing object-oriented systems engineering approaches at semantic and notation level (Booch, 2002; Fowler, 2004; Rumbaugh, Jacobson, & Booch, 1998). Their effort led to the Unified Modeling Language (UML), a well-known, general-purpose, tool-supported, process-independent, and industry-standardized modeling lang…

Automatic Reengineering in MDA Using Rewriting Logic as Transformation Engine

2005

Legacy systems are information systems that have been developed by means of methods, tools and database management systems that have become obsolete, but they are still being used due to their reliability. As time goes on, the maintenance of this software becomes more complex, expensive and painful. The MOMENT framework supports automatic formal model transformations in MDA. This model transformation approach is based on the algebraic specification of models and benefits from mature term rewriting system technology to perform model transformation using rewriting logic. In this paper, we present how we apply this formal transformation mechanism to recover a legacy relational database, obtain…

Min-max control of uncertain multi-inventory systems with multiplicative uncertainties

2001

In this note, we consider production-distribution systems with buffer and capacity constraints. For such systems, we assume that the model is not known exactly. More precisely, the entries of the matrix representing the system structure may be affine functions of some uncertain time-varying parameters that take values within assigned bounds. We give stabilizability conditions that can be checked, in principle, by solving a min-max problem on the surface of the state-space (buffer level space) unit ball. Then, we consider a special case in which each uncertain parameter affects a single column of the system matrix and is independent of all the other ones. In this case, we propose a mixed int…

Teaching Programming to Large Student Groups through Test Driven Development - Comparing Established Methods with Teaching based on Test Driven Devel…

2016

This paper presents an approach for teaching programming in large university classes based on test driven development (TDD) methods. The approach aims at giving the students an industry-like environment already in their education and introduces full automation and feedback programming classes through unit testing. The focus for this paper is to compare the novel approach with existing teaching methods. It does so by comparing introduction to programming classes in two institutions. One university ran a TDD teaching process with fully automated assessments and feedback, while the other ran a more traditional on-line environment with manual assessments and feedback. The TDD approach has clear…

2010

Research has noticed that imparting TDD-like testing to an early computing curriculum is challenging because it increases technical and cognitive load for the students. This paper addresses the challenge with a software-based solution constructed to facilitate the process of writing tests. The solution allows using a compact while efficient syntax for formulating tests, writing tests into JavaDoc comments, thus close to the source code that implements intended functionalities, and automates the generation of actual test code. The constructed solution -- the ComTest tool -- has now been used in four introductory level programming course offerings. The paper presents the tool and concludes wi…

LanguageLab - A Meta-modelling Environment

2015

In the LanguageLab language workbench, we build on a component-based approach to language specification that facilitates the specification of all aspects of a computer language in a consistent manner, taking into account best practices in meta-modelling and language design. The workbench allows operation on a suitable abstraction level, and also focuses on user-friendliness and a low threshold to getting started, in order to make it useful for teaching of meta-modelling and language design and specification. The platform is open for third party language modules and facilitates rapid prototyping of DSLs, re-use of language modules, and experiments with multiple concrete syntaxes. The platfor…