This paper proposes a methodology to optimise the future accuracy of a collaborative recommender application in a citizen Web portal. There are four stages namely, user modelling, benchmarking of clustering algorithms, prediction analysis and recommendation. The first stage is to develop analytical models of common characteristics of Web-user data. These artificial data sets are then used to ev...

Z. Naturforsch. 55 b, 386-388 (2000); received February 10, 2000 Photochemistry, Copper(I), Uracil, Luminescence 1,3-Dimethyluracil (DMU) forms a complex with copper(I) iodide which shows a green luminescence at Amax = 505 nm. With PF6~ counter ions a photoactive Cu(I)DMU complex is generated which shows a long-wavelength absorption at Amax = 335 nm. Light absorption by this band leads to a dim...

Since a big part of web content is stored in relational databases (RDB) there are several approaches for generating of semantic web metadata from RDB. In our previous work we designed a novel approach for RDB to RDF data transformation. This paper describes experimental comparison of our system with several means of RDF production. We benchmarked both systems for the RDB to RDF transformation a...

This paper describes a case study performed in a capacity selling type (CS) machine shop manufacturing wiring control systems of paper machines by partnership subcontracting. The research task was to improve a flexible way for handling large project orders. Traditionally, production control techniques are based on methods developed for companies manufacturing similar products in line. In case o...

Organizations need practical security benchmarking tools in order to plan effective security strategies. This paper explores a number of techniques that can be used to measure security within an organization. It proposes a new benchmarking methodology that produces results that are of strategic importance to both decision makers and technology implementers. The approach taken reflects a work-in...

in models of data envelopment analysis (dea), an optimal set of input and output weights is generally as-sumed to represent the assessed decision making unit (dmu) in the best light in comparison to all the other dmus. these sets of weights are, typically, different for each of the participating dmus. thus, it is important to find a common set of weights (csw) across the set of dmus. in this pa...

Data envelopment analysis (DEA) is a non-parametric technique for measuring and analyzing the relative efficiency of Decision-Making Unit (DMU) having multiple homogeneous types inputs outputs. Traditional DEA treats DMU as black boxes calculates their efficiencies by considering initial final But overall directly depended upon performances intermediate processes operations. In many situations,...

En este trabajo de investigación se realizó la evaluación eficiencia 41 Instituciones Educación Superior(IES) México, las cuales 31 son Universidades Públicas Estatales (UPES) y 10 UniversidadesInterculturales (UI) en el año 2014 2018, mediante metodología Análisis Envolvente Datos (DEA) conrendimientos variables a escala (VRS) orientación output, además un análisis benchmarking unanálisis holg...

<span lang="EN-US">Planning production is an essential component of the decision-making process, which has a direct bearing on effectiveness systems. This study’s objective to investigate efficiency performance units (DMU) in relation planning issues. However, system manufacturing environment frequently subject uncertain situations, such as demand and labor, this can have effect not only ...