Primary marketing research is a decisive tool to enhance firm’s internal decision making process. The main focus of the following study is on the suitability of Artificial Neural Networks for primary data analysis. Therefore, a comparison with multivariate methods is conducted using theoretically derived evaluation criteria. We show that, other than for secondary research, application of Artifi...

General de Universidades, EDU2011-25885). We thank three anonymous reviewers for their helpful input in a previous version of the paper. Web users tend to search only the pages displayed at the top of the search engine results page (the 'top link' heuristic). Although it might be reasonable to use this heuristic to navigate simple and unambiguous facts, it might be risky when searching for conf...

In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various...

The quality of results for partitioning clustering algorithms depends on the assumption made on the number of clusters presented in the data set. Applying clustering methods on real data missing values turn out to be an additional challenging problem for clustering algorithms. Fuzzy clustering approaches adapted to incomplete data perform well for a given number of clusters. In this study, we a...

The crucial role of the evaluation in the development of the information retrieval tools is useful evidence to improve the performance of these tools and the quality of results that they return. However, the classic evaluation approaches have limitations and shortcomings especially regarding to the user consideration, the measure of the adequacy between the query and the returned documents and ...

mediciNe & health/rhode islaNd referenCes 1. The Affordable Care Act. http://www.whitehouse.gov/healthreform/ healthcare-overview. Accessed on January 4, 2011. 2. Leipzig RM, Whitlock EP, Wolff TA, et al. Reconsidering the approach to prevention recommendations for older adults. Ann Intern Med 2010;153:809-14. 3. Michael YL, Whitlock EP, Lin JS, et al. Primary care-relevant interventions to pre...

Most Web searchers use extremely simple queries. There is an assumption that the correct use of query operators will improve the quality of results. We test his assumption by examining the impact of query operators on the documents retrieved from Web searching. We compare the results from queries without operators to results from the same queries using a variety of operators on several major we...

BACKGROUND The Texas Medicaid Program (Medicaid) defines billable time for labor analgesia as face-to-face time; therefore, anesthesia providers determine billed time. The authors' goal was to determine the influence of anesthesia providers on labor analgesia costs billed to Medicaid. METHODS Under the Freedom of Information Act, Medicaid provided data on claims paid for 6 months in 2001 for ...

The goal of our content rating and fake detection system is to automatically detect files having paedophile or pornographic content in a P2P system. It evaluates the content of a file using user preferences, the idea being that if a given user is interested in two files, this means that these files are somewhat related. Based on this idea, we build a graph of common interest between files and e...

Nonexpert peer-based knowledge refinement, it turns out, is just as helpful as expert-centric knowledge refinement for improving the quality of results. 83 Knowledge management (KM) repository-based systems (such as those involving " best practices " and " lessons learned " applications) are generally costly to operate since they require expert judgment to determine which knowledge submissions ...