Semantic Technology Recommendation Based on the Analytic Network Process

Semantic technologies have become widely adopted in recent years, and choosing the right technologies for the problems that users face is often a difficult task. This paper presents an application of the Analytic Network Process for the recommendation of semantic technologies, which is based on a quality model for semantic technologies. Instead of relying on expert-based comparisons of alternatives, the comparisons in our framework depend on real evaluation results. Furthermore, the recommendations in our framework derive from user quality requirements, which leads to better recommendations tailored to users’ needs. This paper also presents an algorithm for pairwise comparisons, which is based on user quality requirements and evaluation results

Extending Software Quality Models - A Sample In The Semantic Technologies Domain

In order to correctly evaluate semantic technologies,which have become widely adopted in recent years, we need to put evaluations under the scope of a unique software quality model.This paper presents a quality model for semantic technologies. First, some well-known software quality models are described,together with methods for extending them. Afterwards, a new method for extending quality models is proposed and it is then used to define a quality model for semantic technologies by extending the ISO 9126 quality model. Finally, the proposed model is validated by analyzing existing semantic technology evaluations

Thermal diagnostic of the Optical Window on board LISA Pathfinder

Vacuum conditions inside the LTP Gravitational Reference Sensor must comply with rather demanding requirements. The Optical Window (OW) is an interface which seals the vacuum enclosure and, at the same time, lets the laser beam go through for interferometric Metrology with the test masses. The OW is a plane-parallel plate clamped in a Titanium flange, and is considerably sensitive to thermal and stress fluctuations. It is critical for the required precision measurements, hence its temperature will be carefully monitored in flight. This paper reports on the results of a series of OW characterisation laboratory runs, intended to study its response to selected thermal signals, as well as their fit to numerical models, and the meaning of the latter. We find that a single pole ARMA transfer function provides a consistent approximation to the OW response to thermal excitations, and derive a relationship with the physical processes taking place in the OW. We also show how system noise reduction can be accomplished by means of that transfer function.Comment: 20 pages, 14 figures; accepted for publication in Class. Quantum Gra

Resistance to eyespot (Pseudocercosporella herpotricoides) and distribution of biochemical markers in hexaploid lines derived from double cross (Triticum turgidum x Aegilops ventricosa) x T. aestivum

There are not good intraspecific sources of resistance to the eyespot disea se of wheat, aaused by Cercosporella herpotrichoides Fvon . The -ínterspecifia transfer of genes for resistanoe from Aegitops ventricosa into hexaploid wheat has been only partially achieved, because the degree of resistanoe attained is not as high as that of the donor. We report here on the transfer of resistanoe in a double oross (Triticum turgidum var. rubroatrwv H-1-1 x Ae.ventricosa AP-D x T.aestivum cv. Almatense H-10-15. The high level of resistanoe in a high proportion of the lines strongly suggests a simple genetic control for this oharacter (possibly by one major gene). The gene(s) responsible for resistanoe in the selected lines must be associa ted with the D genome of Aegilops ventricosa on the basis of a detailed study of the distribution of biochemioal markers in the H-93 lines. These results do not exelude that genes with similar effeets might be looated in the M° genome

Data From Erasmus+ Project Results Platform

Proceedings TEEM 2020: Eighth International Conference on Technological Ecosystems for Enhancing Multiculturality.[EN]Collecting data from Erasmus+ projects related to eLearning and the associated methodologies in order to detect those that have been identified as good practice or success story could be very useful in order to help teachers to define success projects in that field. In order to compile projects of interest, we have the Erasmus+ Project Results Platform, which has a very useful information database to locate educational projects that have been funded by the European Union. This database compiles European educational projects that have been developed in Erasmus+ and also in previous programs such as Lifelong Learning Programme since 2007. The advantage of using this tool is that it has a search engine that allows you to search by keywords and has different criteria to filter. It also allows you to export up to a maximum of 1000 projects per search in excel format with basic data from the filtered projects. Therefore, using this tool is key to be able to identify good practices in European educational projects that serve as a reference to find the parameters useful for learning improvement. This article presents the main data collected from the analysis of educational projects that are connected with eLearning and related methodologies in the aforementioned platform. It also defines which ones will be selected to be able to address an adequate analysis that is manageable to carry out the definition of a methodological guide. As a result of the initial analysis, it is considered appropriate to carry out a review of the projects linked to eLearning in KA1 and KA2 actions that have more than 50 projects connected to this topic, involving educational centers, and that are labelled as good practice and / or success story. With the projects that meet these criteria, there is enough information to achieve the objectives of the research in order to be able to design a methodological guide with the key aspects for implementing eLearning projects

A Recommendation Framework Based on the Analytic Network Process and its Application in the Semantic Technology Domain

When users face a certain problem needing a product, service, or action to solve it, selecting the best alternative among them can be a dicult task due to the uncertainty of their quality. This is especially the case in the domains where users do not have an expertise, like for example in Software Engineering. Multiple criteria decision making (MCDM) methods are methods that help making better decisions when facing the complex problem of selecting the best solution among a group of alternatives that can be compared according to different conflicting criteria. In MCDM problems, alternatives represent concrete products, services or actions that will help in achieving a goal, while criteria represent the characteristics of these alternatives that are important for making a decision

A Recommendation Framework Based on the Analytic Network Process and its Application in the Semantic Technology Domain

When users face a certain problem needing a product, service, or action to solve it, selecting the best alternative among them can be a dicult task due to the uncertainty of their quality. This is especially the case in the domains where users do not have an expertise, like for example in Software Engineering. Multiple criteria decision making (MCDM) methods are methods that help making better decisions when facing the complex problem of selecting the best solution among a group of alternatives that can be compared according to different conflicting criteria. In MCDM problems, alternatives represent concrete products, services or actions that will help in achieving a goal, while criteria represent the characteristics of these alternatives that are important for making a decision

Influence of aluminum doping on the properties of LiCoO2 and LiNi0.5Co0.5O2 oxides

We have prepared LiCo1−yAlyO2 and LiNi0.5−yAlyCo0.5O2 (0≤y≤0.3) powder samples by a low temperature sol–gel method using succinic acid as chelating agent. We have studied the details of their crystallographic and local structure by X-ray diffraction (XRD) and FTIR spectroscopy, respectively; we have analyzed their chemical composition by ICP and obtained information about the morphology of the polycrystalline particles by SEM. Also, we have studied the electrochemical performance of the as-prepared materials in the LiLiNi0.5−yAlyCo0.5O2 cells cycled in the potential range 2.5–4.2 V finding that the overall capacity of the oxides has been reduced due to the metal substitution. For example, at 4.2 V cut-off, the charge capacity of the LiLiNi0.35Al0.15Co0.5O2 cell is ca. 115 mA h/g. However, more stable charge–discharge cycling performances have been obtained as compared to those displayed by the native oxides. Finally, we have characterized the kinetics of Li-diffusion by the galvanostatic intermittent titration technique and, according to our results, Al substitution provides an increase in the chemical diffusion coefficients of Li ions in the LiNi0.5−yAlyCo0.5O2 matrix.Spanish and French Foreing Office; PAI Picasso 00717TCSpanish and French Foreing Office; HF 1999-010

Ansiedad Futura en Adultos Jóvenes Españoles : Propiedades Psicométricas de la Dark Future Scale

Background/Objective:The Dark Future Scale (DFS) is a selfreport instrument which assesses the tendency to think about the future with anxiety, fear, and uncertainty. Although it has been applied in different populations, instrumental studies are scarce, and there is no validated Spanish version. The aim was therefore to develop a Spanish version of the scale (DFS-S) and to analyze its psychometric properties in a sample of young adults. Method:Participants were 1,019 individuals aged from 18 to 24 years. They completed the DFS-S and the IPIP-BFM-20. Validity evidence based on the internal structure, including measurement invariance across gender, as well as on relationships with personality traits was obtained. Reliability and gender differences in DFS-S scores were also examined. Results:Results supported a single-factor structure, χ2(5) = 10.79, CFI = .999, RMSEA = .034, SRMR = .016, that was invariant across gender. Reliability of test scores was satisfactory (ω= .92). In the correlation analysis, future anxiety showed a strong positive correlation with neuroticism (.42) and a moderate negative correlation with extraversion (-.25). Females scored higher than males on future anxiety. Conclusions:The DFS-S has sat-isfactory psychometric properties and it is an adequate tool for measuring future anxiety among young adults.Antecedentes/Objetivo: La Dark Future Scale (DFS) evalúa la tendencia a pensar en el futuro con ansiedad, miedo e incertidumbre. Aunque ha sido usada en diferentes poblaciones, los estudios instrumentales son es-casos y no hay una versión adaptada al español. El objetivo del estudio fue adaptarla al español (DFS-S) y analizar sus propiedades psicométricas en una muestra de adultos jóvenes. Método: Participaron 1.019 jóvenes entre 18 y 24 años. Completaron la DFS-S y el IPIP-BFM-20. Se analizan evidencias de validez basadas en la estructura interna, incluyendo la invarianza de medida según el género, y basadas en las relaciones con rasgos de personalidad, así como análisis de la fiabilidad y de las diferencias de género. Resultados: Los resultados apoyaron una estructura de un solo factor, χ2(5) = 10.79, CFI = .999, RMSEA = .034, SRMR = .016, con invarianza respecto al género, y con coeficiente de fiabilidad satisfactorio (ω= .92). Se encontró correlación positiva fuerte entre ansiedad futura y neuroticismo (.42) y una correlación negativa moderada con extraversión (-.25). Las puntuaciones en ansiedad futura fueron mayores en las mujeres. Conclusiones: Los resultados muestran propiedades psicométricas satisfactorias de la DFS-S, siendo un instrumento adecuado para medir la ansiedad futura en adultos jóvenes