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445 articles for “empirical”
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Research ArticleOpen accessIn the abstractA Novel Performance Metric for Building an Optimized ClassifierMohammad Hossin, Md Nasir Sulaiman, Aida Mustapha, Norwati MustaphaProblem statement: Typically, the accuracy metric is often applied for optimizing the heuristic or stochastic classification models. However, the use of accuracy metric might lead the searching process to the sub-optimal solutions due to its less discriminating values and it is also not robust to the changes of class distribution. Approach: To solve these detrimental effects, we propose a novel … …Journal of Computer Science, Vol. 7, Issue 4 · 4 Apr 2011 · 8,480 accessesView PDFCite
Research ArticleOpen accessIn the abstractMany Sources, One Theme: Analysis of Cyberbullying Prevention and Intervention WebsitesRebecca AhlforsProblem statement: Cyberbullying represents the expansion of traditional bullying into the electronic realm. As the problem of cyberbullying typically occurs via the Internet, many cyberbullying prevention and intervention resources have been made available online. The purpose of this qualitative study was to determine general characteristics of cyberbullying prevention and intervention websites. This study was conducted as a preliminary survey of … …Journal of Social Sciences, Vol. 6, Issue 4 · 23 Oct 2010 · 12,804 accessesView PDFCite
Research ArticleOpen accessIn the abstractKnowledge Discovery in Biochemical Pathways Using MinepathwaysFord Lumban GaolProblem statement: The advancement of the biochemical research gives profound effect to the collection of biochemical data. Approach: In the recent years, data and networks in biochemical pathways are abundant that allow to do process mining in order to obtain useful information. By using graph theory as a tool to model these interactions, it can be formally find the solution. … …Journal of Computer Science, Vol. 6, Issue 11 · 23 Oct 2010 · 7,057 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrivate Giving Crowding Government Funding in Public Higher EducationG. Thomas SavProblem statement: Private giving and government funding are critical revenue sources for public colleges and universities. If increased private giving reduces government funding, then that type and extent of crowding out carries important managerial and public policy implications. Approach: The study used a government funding reaction function and an instrumental variable approach to empirically estimate the potential for crowding out. … …American Journal of Economics and Business Administration, Vol. 2, Issue 3 · 30 Sep 2010 · 7,746 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Economics of Autism in EgyptRoger Lee MendozaProblem statement: This was the first study ever done on the cost consequences of Autism Spectrum Disorder (ASD) in Egypt or any other developing/industrializing country. The following questions were empirically investigated: What are the economic costs of ASD in Egypt and how do they compare with developed/industrialized countries? Why are cost consequences important in formulating ASD policy in Egypt and … …American Journal of Economics and Business Administration, Vol. 2, Issue 1 · 31 Mar 2010 · 11,744 accessesView PDFCite
Research ArticleOpen accessIn the abstractTowards the Decline and fall of Radical and Educational Constructivism (Mark I)James Carifio, Rocco J. PerlaProblem statement: In 1974, McKeachie published a brief article in The Educational Researcher called, &#34The Decline and Fall of the Laws of Learning&#34. Approach: This article was primarily about the decline and fall of the behaviorist laws of learning and radical behaviorism, both of which were never quite the same in psychology or education after this article as before it … …Current Research in Psychology, Vol. 1, Issue 1 · 1 Jan 2010 · 8,074 accessesView PDFCite
Research ArticleOpen accessIn the abstractDoes the Size of Personalized Menus Affect User Performance?Khalid Al-Omar, Dimitrios I. RigasProblem statement: To date, researchers have personalized graphical user interfaces for individual users to reduce visual search time. Little research, however, has been directed at understanding the factors which cause approaches to personalization to have positive effects at one time and negative ones at others. Approach: The study reported here investigated empirically the effects of content size on 5 different … …Journal of Computer Science, Vol. 5, Issue 12 · 31 Dec 2009 · 6,599 accessesView PDFCite
Research ArticleOpen accessIn the abstractNorm Divergence Opportunity Structure and Utilization of Self-Employed Immigrants' QualificationsShahamak Rezaei, Marco GoliProblem statement: Denmark experienced one of the most successful periods of its economy in 2004-2008, with a tremendous reduction of 77% in unemployment. Due to the structural challenges with regard to the labor market the utilization of immigrants’ qualifications has come up to the surface of political and societal debate in Denmark. The focus of this study was challenges to … …Journal of Social Sciences, Vol. 5, Issue 3 · 30 Sep 2009 · 7,839 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Numerical Computation of Rational Structures and Asymptotic Standard Deviations in Causal Time Series DataConcepción González-Concepción, María Candelaria Gil-Fariña, Celina Pestano-GabinoProblem statement: The specific properties of data series are of primary importance in several sciences. In the field of time series analysis, several researchers have considered the rational approximation theory, particularly the Padé Approximation and Orthogonal Polynomials. Approach: In this study, an approach for the statistical significance of two numerical methods, the r-s and q-d algorithm, was proposed which made … …Journal of Mathematics and Statistics, Vol. 5, Issue 3 · 30 Sep 2009 · 7,054 accessesView PDFCite
Research ArticleOpen accessIn the abstractFactors Affecting Agricultural Land Fragmentation in Iran: A Case Study of Ramjerd Sub District in Fars ProvinceKhalil Kalantari, Gholamhossein AbdollahzadehThe objective of this study was to examine the factors influencing fragmentation of landholdings commonly regarded as a major obstacle to agricultural development in Iran. A sample of farmers was selected and household and village-level data from 12 villages of Ramjerd sub district in Fars province were used to test these factors empirically. Required data were collected by questionnaire from … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 8,410 accessesView PDFCite