Class-based languages express knowledge in terms of objects and classes, and have inspired a huge number of formalisms in computer science. Description logics form a family of both class-based and logic-based knowledge representation languages which allow for modeling an application domain in terms of objects, classes and relationships between classes, and for reasoning about them. This paper p...

Shopping agents are web-based applications that help consumers to find appropriate products in the context of e-commerce. In this paper we argue about the utility of advanced model-based techniques that recently have been proposed in the fields of Artificial Intelligence and Knowledge Engineering, in order to increase the level of support provided by this type of applications. We illustrate thi...

The development of a large information system is generally regarded as one of the most complex activities undertaken by organisations. The success of this activity is dependent on the use of a pertinent methodology for identifying the requirements on the target system and make sure that the produced system will actually meet these requirements. Thus, the first step in Requirements Engineering, ...

In such contexts as the Semantic Web, the components of an application increasingly rely on ontological models and content knowledge developed and maintained by independent contributors. These components also are designed to be building blocks of various applications. We advocate the use of a mediating component that defines and processes the knowledge transformations required to enable applica...

Intelligent sensors experience security problems very similar to those inherent to other kinds of IT products or systems. The assurance for these products or systems creation methodologies, like Common Criteria (ISO/IEC 15408) can be used to improve the robustness of the sensor systems in high risk environments. The paper presents the background and results of the previous research on patterns-...

In addition to establishing and maintaining knowledge spaces, cooperative knowledge organization specifically involves the structuring and adaptation of such spaces, taking into account existing materials and media. The open-source project sTeam, which is being coordinated and largely developed in Paderborn, allows the web-based establishment of an extensive document base as well as its coopera...

The project involves the development of a custom designed hybrid AI application for a company for capturing process improvement knowledge. The company in question is based in Bangalore and is a vendor to General Electric. Considering the competitive nature of the manufacturing industry and the demands from customers for competitive prices, it has become necessary for vendor companies to not onl...

the process of collection development, collection generating and obtaining information is of basic debates in libraries and information centers which a lot of articles have been written about the methods of collection development of information as well as the application of information technology, accordingly, to this day. this article, as opposed to other articles, which are about the prevaili...

Agriculture is the dominant sector in the Ethiopian economy but it is characterized by low productivity. Ethiopia is interested in creating access to agricultural knowledge through an agricultural knowledge management system (AKMS). Such a system has been developed using a web-based portal named Ethiopian Agriculture Portal (EAP). It is facilitated through Woreda Knowledge Centers (WKCs) which ...

In order to provide convenient access to this web-based data, intelligent systems, such as CiteSeerX, are developed to construct a knowledge base from this unstructured information. CiteSeerX does this autononmously, even leveraging utility-based feedback control to minimize computational resource usage and incorporate user input to correct automatically extracted metadata [26]. The rich metada...