This survey provides newly reported approaches to the design and development of DSSs published in peer reviewed journals. DSS applications were searched using the online database ABI/INFORM... Show More

This survey provides newly reported approaches to the design and development of DSSs published in peer reviewed journals. DSS applications were searched using the online database ABI/INFORM complete, which is available on the web through ProQuest. The collected 80 specific DSS applications, where were published in 41 journals, are analyzed to examine the development pattern of DSS in the time period of 2002-2012. This paper summarizes the survey results according to (1) the area of application, (2) the year of publication in each area of application, (3) the distribution of underlying decision support tools in DSSs, (4) a classification based on Alter's taxonomy, and (5) the management level (operational, tactical, or strategic) for which the DSS was designed.

Cooperation in multi-agent systems is necessary in order to perform complex tasks and lead Multi-agent System (MAS) towards its objective. Contract-Net Protocol (CNP) is one of the communication and... Show More

Cooperation in multi-agent systems is necessary in order to perform complex tasks and lead Multi-agent System (MAS) towards its objective. Contract-Net Protocol (CNP) is one of the communication and coordination mechanisms used by multi-agent systems which prefer cooperation through interaction protocols. This paper proposes a new cooperation and negotiation protocol based on the principals of the Contact Net Protocol (CNP). The auhtors' suggested negotiation protocol is used to solve one of the problems in the context of the city planning which is the problem of election of urban projects. Their proposed protocol is intended to the decision makers in order to help them resolve the problem of the evaluation and the selection of the best urban project without the need to be together in a decision urban room.

In this research study, the authors investigate the association between external searching, which is searching on a web search engine, and internal searching, which is searching on a website. They... Show More

In this research study, the authors investigate the association between external searching, which is searching on a web search engine, and internal searching, which is searching on a website. They classify 295,571 external – internal searches where each search is composed of a search engine query that is submitted to a web search engine and then one or more subsequent queries submitted to a commercial website by the same user. The authors examine 891,453 queries from all searches, of which 295,571 were external search queries and 595,882 were internal search queries. They algorithmically classify all queries into states, and then clustered the searching episodes into major searching configurations and identify the most commonly occurring search patterns for both external, internal, and external-to-internal searching episodes. The research implications of this study are that external sessions and internal sessions must be considered as part of a continuous search episode and that online businesses can leverage external search information to more effectively target potential consumers.

User's profiles play an important role when information systems try to meet their needs. This work presents a novel approach to build user profiles. It is based on information extraction techniques... Show More

User's profiles play an important role when information systems try to meet their needs. This work presents a novel approach to build user profiles. It is based on information extraction techniques and proceeds by iterative steps. The use of different statistic metrics, Natural Language Processing (NLP) techniques and semantic descriptions (ontologies) in the authors' approach, has provided it with a good precision degree when extracting information from texts. This has been demonstrated by an application prototype which is an automatic user profile constructor, using the texts of emails job applications (E recruitment field).

The K-means is a popular clustering algorithm known for its simplicity and efficiency. However the elapsed computation time is one of its main weaknesses. In this paper, the authors use the K-means... Show More

The K-means is a popular clustering algorithm known for its simplicity and efficiency. However the elapsed computation time is one of its main weaknesses. In this paper, the authors use the K-means algorithm to segment grayscale images. Their aim is to reduce the computation time elapsed in the K-means algorithm by using a grayscale histogram without loss of accuracy in calculating the clusters centers. The main idea consists of calculating the histogram of the original image, applying the K-means on the histogram until the equilibrium state is reached, and computing the clusters centers then the authors use the clusters centers to run the K-means for a single iteration. Tests of accuracy and computational time are presented to show the advantages and inconveniences of the proposed method.

This article describes real-time discrete wavelet transform algorithm implementation for high-level programming language. The article describes multiscale transform algorithms both for direct... Show More

This article describes real-time discrete wavelet transform algorithm implementation for high-level programming language. The article describes multiscale transform algorithms both for direct discrete wavelet transform and inverse discrete wavelet transform. This algorithm has been implemented in C++ programming language and tested with Raspberry Pi microprocessor system. This article proposes the improved delay line algorithm without full shifting of register. New algorithm requires single reading operation, single writing operation and one division calculation for any length of delay line. The article includes experimental measurements of processing time on Raspberry Pi for various scale numbers. The algorithm described in this article can be used with any software tool capable of using high level programming language, for example Matlab, Octave, Opnet, etc. This is the main purpose – to create algorithm which is not tied strictly to hardware implementation but also, nonetheless, provides real-time discrete wavelet analysis capability.

Unified Modeling Language (UML) is using in the design notation in industry and academia projects. Interesting by the critical Real-Time System verification, it is important to ensure its... Show More

Unified Modeling Language (UML) is using in the design notation in industry and academia projects. Interesting by the critical Real-Time System verification, it is important to ensure its dependability in order to avoid eventual errors. In this paper, the authors aim to extend the UML diagrams by adding a formal verification stage. They tackle with the UML2 timing diagram (TD), as interaction diagram in order to describe the system's behavior in temporal way. For that, the authors give a formal description for TD using Time Petri Nets (TPN). Then, they propose a formal verification by means of Romeo Model Checker. In particular, they show how to formulate quantitative properties using TCTL (timed computation tree logic). In addition, the authors show how they can derive the TCTL formulae from Object Constraint Language-Real Time (OCLRT) constraints. Finally, they illustrate the proposed approach through a real case study.

Companies are investing a lot of resources and effort for migrating their legacy applications and adapting them with the rapid technological changes. For this reason, the authors are interested in... Show More

Companies are investing a lot of resources and effort for migrating their legacy applications and adapting them with the rapid technological changes. For this reason, the authors are interested in the modernization of desktop applications developed in Java Swing to Web 2.0 applications. Therefore, an ADM approach is applied in order to develop a tool named FlexMigration allowing automatic reverse engineering of Swing GUI to obtain a RIA GUI. The usefulness of this tool is the automation of the migration process with the extraction of the actions encapsulated in possible anonymous classes. As an illustration, they present along this paper a reengineering of a small legacy chat application. The authors explain its migration process to generate a similar Flex Graphical User Interface.