Afshin Salajegheh

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Web service composition is one of the most challenging problems of recent years. The number of service providers is increasing, and along with that for a request they offer multiple services with the same functionality, so it makes the problem of composition quite complex. In this paper we present several methods on service composition. We group them into(More)
Currently, all search algorithms which use discretization of numeric attributes for numeric association rule mining, work in the way that the original distribution of the numeric attributes will be lost. This issue leads to loss of information, so that the association rules which are generated through this process are not precise and accurate. Based on this(More)
The main component of electronic commerce (E-commerce) is the exchange of documents and messages. In the field of commercial messages standardization, the ebXML framework offers the valid standard for message modeling. Due to the importance of standardization ebXML framework in E-commerce, creating more facilities, in the ebXML messaging is so important.(More)
The use and analysis of unstructured semantic data such as text files, semantic web, and etc which have been included the bulk of the available data sources, such as Internet due to their high volume and the extent of their resources is very complicated and time consuming process. In this context, the ontology for modeling and better understanding this data(More)
Controlling and testing a large scale web application is a time consuming and expensive job because of the huge number of pages and their actions. The hierarchical architecture proposed in this paper is a framework which can decreases nested relations between web pages. We can also use different programming methods like object oriented or structured over(More)
Enterprise resource planning (ERP) implementation solves business problems. Effective, efficient implementations can bring a customer millions of dollar return, improve implementation consultancies' profit margins. The study reported in this paper aims to identify, assess and suggest improvements for ERP implementations and post implementation shortcomings.(More)
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