Search results for "R software"
showing 10 items of 89 documents
Computerized Attention Training Program and Vocal Ensemble Classes – means of Adolescent Attention Focusing Ability Development
2015
Nowadays adolescents encounter difficulties focusing on particular, effective and long-term activities. These difficulties depend on their age group development regularities. The aim of the research is to evaluate computer attention training software in comparison with vocal ensemble classes on the subject of adolescent attention focusing ability development. Participants – 24 adolescents (both sexes, average age 14 ± 0,87 years) were divided into three experimental groups – experimental group A (EGA), experimental group B (EGB) and control group (KG). Two methods of adolescent attention focusing skills development were tested:computer software package CogniPlus /Schuhfried, Austria/ was ap…
Unauthorized copying of software
2007
Computer users copy computer software - this is well-known. However, less well-known are the reasons why some computer users choose to make unauthorized copies of computer software. Furthermore, the relationship linking the theory and the practice is unknown, i.e., how the attitudes of ordinary end-users correspond with the theoretical views of computer ethics scholars. In order to fill this gap in the literature, we investigated the moral attitudes of 249 Finnish computing students towards the unauthorized copying of computer software, and we then asked how these results compared with the theoretical reasons offered by computer ethics scholars. The results shed a new light on students' mor…
Attitudes to and factors affecting unauthorized copying of computer software in Finland
2005
Several quantitative studies have sought to determine the factors affecting the unauthorized copying of software, particularly in North America. However, we find no statistically reliable studies on the situation in Europe. In order to address this gap in the literature, we explored the attitudes to and factors affecting the unauthorized copying of computer software of 249 Finnish university students: nine hypotheses derived from the existing research on unauthorized copying of computer software or theories of ethics were tested. A quantitative questionnaire was used as the research instrument. The results shed new light on the characteristics of users and factors affecting the unauthorized…
Cost-Oriented Recommendation Model for E-Commerce
2012
Contemporary Web stores offer a wide range of products to e-customers. However, online sales are strongly dominated by a limited number of bestsellers whereas other, less popular or niche products are stored in inventory for a long time. Thus, they contribute to the problem of frozen capital and high inventory costs. To cope with this problem, we propose using information on product cost in a recommender system for a Web store. We discuss the proposed recommendation model, in which two criteria have been included: a predicted degree of meeting customer’s needs by a product and the product cost.
A Coupled Fixed Point Theorem in Fuzzy Metric Space Satisfying ϕ-Contractive Condition
2013
The intent of this paper is to prove a coupled fixed point theorem for two pairs of compatible and subsequentially continuous (alternately subcompatible and reciprocally continuous) mappings, satisfyingϕ-contractive conditions in a fuzzy metric space. We also furnish some illustrative examples to support our results.
A user-friendly software for sustainable management of urban areas
2002
The need to collect and process information on urban ecosystem requires the introduction of innovative scientific tools, in order to analyze the current urban factors and to optimize the energetic and environmental profile of urban systems, with regard to carrying capacity and territorial needs and vocations. Addressing these needs requires two main elements: (i) public availability of transparent data; and (ii) availability of interactive software designed to make easier exploration of data, models and results. The aim of the present paper is to show a user-friendly software, which is designed as a decision support system for policy makers in the multi-criteria selection among different pl…
DSC: software tool for simulation-based design of control strategies applied to wastewater treatment plants.
2011
This paper presents a computer tool called DSC (Simulation based Controllers Design) that enables an easy design of control systems and strategies applied to wastewater treatment plants. Although the control systems are developed and evaluated by simulation, this tool aims to facilitate the direct implementation of the designed control system to the PC of the full-scale WWTP (wastewater treatment plants). The designed control system can be programmed in a dedicated control application and can be connected to either the simulation software or the SCADA of the plant. To this end, the developed DSC incorporates an OPC server (OLE for process control) which facilitates an open-standard communic…
Mixture Hidden Markov Models for Sequence Data: The seqHMM Package in R
2019
Sequence analysis is being more and more widely used for the analysis of social sequences and other multivariate categorical time series data. However, it is often complex to describe, visualize, and compare large sequence data, especially when there are multiple parallel sequences per subject. Hidden (latent) Markov models (HMMs) are able to detect underlying latent structures and they can be used in various longitudinal settings: to account for measurement error, to detect unobservable states, or to compress information across several types of observations. Extending to mixture hidden Markov models (MHMMs) allows clustering data into homogeneous subsets, with or without external covariate…
KFAS : Exponential Family State Space Models in R
2017
State space modelling is an efficient and flexible method for statistical inference of a broad class of time series and other data. This paper describes an R package KFAS for state space modelling with the observations from an exponential family, namely Gaussian, Poisson, binomial, negative binomial and gamma distributions. After introducing the basic theory behind Gaussian and non-Gaussian state space models, an illustrative example of Poisson time series forecasting is provided. Finally, a comparison to alternative R packages suitable for non-Gaussian time series modelling is presented.
Potencialidades de Google Maps en la investigación social aplicada
2019
In recent years, Google has devoted resources to build a complete map of the world. They constantly scan the territory, collecting a large amount of data that provides updated and complete geographic information. This allows us to have an interoperable map that provides the end user with a search tool, not only of routes but also of shops, equipment and any type of geo-referenced information. In addition, Google Maps provides a series of Application Programming Interface (API), which provides a library of set of subroutines, functions and procedures (in object-oriented programming) that can be used by other software to automate the extraction of information of the Google platform. These fre…