Editorial Board

Prof. P.Ekel (Brazil),

Prof. Y.Li (Taiwan),

Prof. V.Mladenov (Bulgaria),

Prof. G.Bognar (Hyngary),

Prof. A.Zemliak (Mexico),

Prof. Lotfi A. Zadeh (USA),

Prof. Leonid Kazovsky (USA),

Prof. Nikos Mastorakis (GR),

Prof. S. Kartalopoulos (USA),

Prof. Z.Bojkovic (Serbia),

Prof. Ana Madureira (Portugal),

Prof. M.Sugeno (Japan),

Prof. J.C.Quadrado (Portugal),

Prof. A.Caballero (USA),

Prof. Lin Feng (Singapore),  

Prof. M.Garcia-Planas (Spain)



Topics

All aspects of contemporary computers and communications and their applications are covered including technology, multimedia systems, hardware and software systems, networking, wireless communications, microwaves, antennas, radar, propagation, scaterring, in general applied electromagnetics, signal processing, microcomputer applications such as engineering, science, business, management, robotics, manufacturing, medicine, bioinformatics, systems biology and personal computers. It appears quarterly.

Special Issues are specially encouraged.

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Issue 1, Volume 6, 2012

Tele-market Modeling of Fuzzy Consumer Behavior
by R. Bashaand, J. Ameen

Abstract: Just like any other aspect of human life on our planet, the advancements in internet technology over the past decades have greatly influenced the way we live, changing the socio-political structure of the nations as it can clearly be seen in the Middle East and northern African countries. In specific terms, they have influenced our behavior in the way that we conduct marketing extending it beyond traditional boundaries both from business actions and consumer’s behavior. With ease of access and the vast amount of information that can be observed on the internet, consumers are lost for choice. These have increased the challenges that both consumers and business people face manifold. The survival conditions for both sides require more information in order to build new models that can respond to these challenges and help the decision making process in line with these changes and making them more efficient. This paper attempts to assess the fuzzy actions of buying behavior from a multinational viewpoint using data that have been collected on consumer risk assessment while attempting to buy a product on the internet. The survey covered a sample of 270male and female participants of different nationality with different levels of income and education. In a hierarchical modeling attempt, Logistic regression is used to identify factors that are significant in the action of purchasing leading to a sensitivity of 0.94 and specificity of 0.81. The resulting significant components from the first stage model are used as inputs in the application of AnswerTreeand more specifically, Classification Regression Tree (CRT) model to formulate what-if decision scenarios to help decision makers improve their targeting and selling options. The sensitivity and specificity of the latter approach were 0.93 and 0.83 respectively and led to the establishment of a set of decision rules each with their probability of success ranging from 0.67 to 1. None of the factors of gender, geographic location or income were significant in the process.

Keywords:

Tele-marketing, Customer behavior, Logistic Regression, Decision Tree
Full Paper, pp. 1-8

 

Will Cloud Computing Change Standards in IT Service Management?
by Marc Jansen

Abstract: One of the latest hypes in IT is the well-known Cloud Computing paradigm. This paradigm that showed up in recent years is a paradigm for the dynamic usage of computational power, memory and other computational resources. With respect to hypes, the author strongly believes that the Cloud Computing paradigm has the potential to survive the hype and to become a usual technology used for the provision of IT based services. Therefore, it will be necessary to deploy Cloud Computing based infrastructures in a professional, stable and reliable way. This would lead to the idea that the Cloud Computing paradigm needs to be concerned with respect to IT Service Management, since cloud based infrastructures have to be managed differently in comparison to a usual infrastructure. This paper discusses, based on the IT Infrastructure Library (ITIL), as the de-facto standard for IT Service Management, whether this de-facto standard might also be able to manage Cloud Computing based infrastructures, how the according processes might change and whether ITIL supports a division of labor between the customer and the service provider of a Cloud Computing based infrastructure.

Keywords:

IT Infrastructure Library (ITIL), Cloud Computing, Infrastructure, Services, Processess
Full Paper, pp. 9-16

 

Designing Systems for Control and Verifying the Authenticity of Products Using RFID Technology
by Eleonora Tudora, Adriana Alexandru, Marilena Ianculescu

Abstract: In contrast to the typical utilization of Radio Frequency IDentification (RFID) technology today in warehouse management and supply chain applications, the focus of this paper is an overview of the structure of RFID systems used by RFID technology and it also presents a solution based on the application of RFID for brand authentication, traceability and tracking, by implementing a production management system and extending its use to traders.

Keywords:

Authentication, Electronic Product Code (EPC), EPC network, Object Naming Service (ONS), RFID, RFID Tag, Traceability
Full Paper, pp. 17-25

 

Extending Kosovo Civil Registry String Searching Algorithm
by Blerim Rexha, Valon Raça, Agni Dika

Abstract: Offering e-Government services to citizens is linked primarily to civil registry data. Searching for a citizen’s data in civil registry is a common service carried out by string search algorithms using unique keywords such as citizen’s name and surname. Similar pronunciation of some Albanian language consonants challenges search on citizen’s data, names of which are similarly pronounced, despite different spelling.
This paper presents a novel approach for extending string searching algorithm based on Albanian names in Kosovo Civil Registry. This paper compares Levenshtein distance, American Soundex and extended Soundex algorithm results in a database of 271.000 citizens of Prishtina municipality. The extended algorithm accommodates basic rules of pronunciation in Albanian language and its accuracy and efficiency is better than Levenshtein distance and American Soundex.

Keywords:

Civil Registry, Levenshtein, Soundex, String Matching, String Searching
Full Paper, pp. 26-34

 

Steganographic Software: Analysis and Implementation
by Akram M. Zeki, Adamu A. Ibrahim, Azizah A. Manaf

Abstract: Steganography is the method of hiding data in such a way that no one, except the sender and the intended recipient, expects the existence of the hidden data. Thus the goal here is always to conceal the very existence of the secret data embedded in an innocent data in such a way that it will be undetectable, robust and the innocent data should be able to accommodate high capacity of the secret data. Unfortunately, these goals were not commonly seen in most of the techniques. This paper studied different Steganographic techniques and undertakes an experiment using five Steganographic software in order to explore their capabilities. Benchmarking tool for identifying different performance aspects of the Steganographic techniques and Steganographic software like visual quality, performance indices, memory requirement and the evaluation of the maximum capacity for each software under this study. Experimental results show that all the software under this study performs above optimal level, although there are some differences of features and capabilities observed.

Keywords:

Steganography, Steganographic Software, Information Hiding, Steganographic tools, PSNR
Full Paper, pp. 35-42

 

Connections among CRM, Cloud Computing and Trading Income of Selected Companies
by Jan Němeček, Lucie Vaňková

Abstract: This article is focused to time period 2007-2010. It was time before and during the economic crisis. In this article the readers can found how the selected companies doing business in the Czech Republic are using information technology and business strategy Customer Relationship Management (CRM) and how it have impact to the Trading Incomes. This article also found the answer to the question whether the companies use complete solutions of CRM as purchase and installation of software or whether they use the CRM system only as part of services which are provided through Cloud Computing technology. Also there try to find connections between implementing CRM and Trading Income of companies. Apparently also because of ending of the economic crisis is CRM in the Czech Republic beginning more use. The main goal of implementing CRM is to help to company increase quality of relationship and communication with customers. In this article there are described types of Cloud Computing and most common definition of CRM. The analysis of using of CRM and Cloud Computing in the selected companies, which are grouped by number of employees, is described, too. After that it is comparing Trading Incomes of companies grouped by number of employees. At the end of this article is summary of analysis results and assumptions and found contributions of CRM and Cloud Computing.

Keywords:

Business Strategy, Cloud Computing, CRM, Customer Relationship Management, Information Technology, Trading Income
Full Paper, pp. 43-50

 

Teachers’ Professional Development in Free Software for Education in Taiwan
by Jui-Chen Yu, Hung-Jen Yang, Lung-Hsing Kuo, Hsieh-Hua Yang

Abstract: The purpose of this study was to identify the status of promoting teachers to use free software as educational resource. In this information age, using computer software to support learning had become a reality. On campus, teachers lead our students to learn. Teachers’ knowledge of applying computer software in education initiates and leads next generations of using information technology. There is a need to understand how education system helps teachers to learn up to date information about educational software. An investigation method was applied in this study. The population of this study was 7540 from 2002 to July, 2011. 343 courses were sampled for reaching 95% confidence and 5% confidence interval. By applying statistical tests, investigation results were revealed. Based upon statistical results, conclusions of research problems were reached. The increasing frequency of promoting courses is identified. The life cycle of courses offered for learning about free software is also concluded.

Keywords:

Professional Development, Free Software, Educational Software
Full Paper, pp. 51-59

 

Predicting the Next Page that Will be Visited by a Web Surfer Using Page Rank Algorithm
by D. Ciobanu, C. E. Dinuca

Abstract: Predicting the next page to be visited by a web user with increasing accuracy have many important applications like caching and prefetching web pages to improve the speed of navigation or creating systems of recommendation to help users to find faster in the site what they are looking for. We have created a java program, using Net Beans IDE, that calculates the probability of visiting the pages using the page rank algorithm and counting links. For exemplification we used the NASA log file available online at http://ita.ee.lbl.gov/html/contrib/NASA-HTTP.html and a log file from a commercial web site http://www.nice-layouts.com. We applied to the entire data set of sessions the program and we obtained probabilities of visiting the pages. After that we applied the program only to the subset of sessions which contain the current page. For data obtained from log files of the NASA website was obtained an improvement in prediction in the sense of increasing the precentage from 19,75% to 32,5%. In the case of data obtained from the log files of the commercial site the improvements for the predictions was smaller from 74,66% to 77,77%. In the chapter with conclusions we present explanations for this differences of improvments obtained in those two cases.

Keywords:

Clickstream, Link counts, Page Rank, Prediction, Web logs
Full Paper, pp. 60-67

 

An Application for Clickstream Analysis
by C. E. Dinucă

Abstract: In the Internet age there are stored enormous amounts of data daily. Nowadays, using data mining techniques to extract knowledge from web log files has became a necessity. The behavior of Internet users can be found in the log files stored on Internet servers. Web log analysis can improve business firms that are based on a Web site through learning user behavior and applying this knowledge to target them for example to pages that other users with similar behavior have visited. The extraction of useful information from these data has proved to be very useful for optimizing Web sites and promotional campaigns for marketing, etc. In this paper I will focus on finding associations as a data mining technique to extract potentially useful knowledge from web usage data. I implemented in Java programming language, using NetBeans IDE, a program for identification of pages’ association from sessions. For exemplification, I used the log files from a commercial web site.

Keywords:

Apriori algorithm, Association rules, Clickstream analysis, Sessions’ identification, Web server logs, Web usage mining
Full Paper, pp. 68-75

 

Interleaving Commands: a Threat to the Interoperability of Smartcard Based Security Applications
by Maurizio Talamo, Maulahikmah Galinium, Christian H. Schunck, Franco Arcieri

Abstract: Although smartcards are widely used, secure smartcard interoperability has remained a significant challenge. Usually each manufacturer provides a closed environment for their smartcard based applications including the microchip, associated firmware and application software. While the security of this “package” can be tested and certified for example based on the Common Criteria, the secure and convenient interoperability with other smartcards and smartcard applications is not guaranteed. Ideally one would have a middleware that can support various smartcards and smartcard applications. In our ongoing research we study this scenario with the goal to develop a way to certify secure smartcard interoperability in such an environment. Here we discuss and experimentally demonstrate one critical security problem: if several smartcards are connected via a middleware it is possible that a smartcard of type S receives commands that were supposed to be executed on a different smartcard of type S’. Such “external commands” can interleave with the commands that were supposed to be executed on S. Here we demonstrate this problem experimentally with a Common Criteria certified digital signature process on two commercially available smartcards. Importantly, in some of these cases the digital signature processes terminate without generating an error message or warning to the user.

Keywords:

Common criteria, digital signature, interoperability, smartcard
Full Paper, pp. 76-83

 

Improving Authentication and Transparency of e-Voting System – Kosovo Case
by Blerim Rexha, Vehbi Neziri, Ramadan Dervishi

Abstract: Authentication and privacy are central issues for acceptance of any e-Voting system in particular and growth of e- Services in general. This paper aims to: (i) to analyze the appropriate architecture and propose new efficient architecture of electronic voting system in Kosovo, and (ii) to analyze the threat vectors and their avoidance in such system. The novelty of implemented solution is based on using dynamic queue list generated based on voters arrivals and identification at the polling station. The proposed architecture enables citizens to cast their vote in any polling station, in opposite to paper form voting where citizen is linked to his predefined polling station. The national election commission configures the smart card, as part of electronic voting infrastructure, to allow decryption of number of records that matches the number of voters in final country wide voting list. The communication between polling stations and central server is encrypted with server’s public key stored in digital certificate and every casted vote is digitally signed by ballot box private key. The developed model is used to compare the costs and efficiency of e-Voting against the traditional paper based voting system in Kosovo.

Keywords:

Digital Signature, Privacy, Security, Smart Cards, e-Voting, X.509 Digital Certificates
Full Paper, pp. 84-91