The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In spite of the fact that many of the proposed context awareness frameworks allow scalability and dynamic interaction with heterogeneous devices disseminated in the environment, very often they are not able to fully profit from the semantic technology to supervise and manage the environment. Indeed, using ontologies allows us to integrate information coming from heterogeneous sources and to share...
Accurate situational assessment is key to any decision making especially crucial in military command and control, air traffic control, and complex system decision making. Endsley describes three dependent levels of situational awareness, (1) perception, (2) understanding, and (3) projection. This research is focused on Endsley's second-level situational awareness (understanding) as it applies to service-oriented...
In heterogeneous service environment, E-learning, especially for learning content service, poses many opportunities and challengers of which the focus is that the service is even not able to be provided if the content can not be consumed in the service environment, termed service context also, which consists of the current state of networks, terminals, users, natural circumstance etc. To face the...
Recent developments in computer science and networking technologies motivate new families of applications that are sensitive to user and ambient contexts. The objective is to offer adaptive services that can be personalized to users' needs within heterogeneous, complex and dynamic environments. This requires enhanced and generic solutions for context representation and retrieval as well as for the...
Ontology is playing an increasingly important role in knowledge management and the Semantic Web. The tourism information ontology is becoming a core research field in the realm of information retrieval. The objective of this study is to explore the potential role of Formal Concept Analysis (FCA) in a web-based ontology construction support system in a tourism domain. An ontology construction method...
In present day globalised trade, the ability to support collaboration through B2B (Business-to-Business) services is crucial. One of the key challenges is to pervasively connect partners across the entire value chain, with the appropriate service offerings. Thus, it is vital to quickly identify potential partners to form new B2B collaborations or to support formed collaborations with swift decision...
We present the design of a system for automatic photo annotation. The system provides a set of tags by combining the context in which the photo was captured with prior knowledge about popular annotation concepts. We exploit semantic web technologies, such as RDF and OWL, to store structured metadata and for representing domain knowledge. The inferencing capabilities of Description Logics allow new...
When developing real-time embedded systems, various professional disciplines are involved. Concerning AAS (assistance and automotive systems) in the automotive domain, the project DeSCAS (Design of Safety-Critical Automotive Systems) has identified the design streams functional development and architecture, safety measures and human factors. What has been proposed are an interwoven development process...
In a pervasive environment, it is essential for computing applications to be context-aware. However, one of the major challenges is the establishment of a generic and dynamic context model. Many different approaches to modeling the context exist, but an application- and domain-agnostic context model, that captures various types of context information and the dependencies between them, that could be...
Ontology Matching (OM) consists of set of processes that decide and establish if ontology elements share lexical or semantic relationships. For a correct alignment, when we establish semantic relationships, it is necessary to find out the meaning of the elements that depends on the context. In this paper, we propose an extension of OWL called OWL-M to improve the representation of multiple types of...
Firms compete by the skills and knowledge of their employees to deliver a range of customized solutions to meet their clients' needs. Knowledgeable workers thereby play a pivotal role in today's knowledge-based economy. In knowledge-intensive business service (KIBS) firms, service providers exchange explicit knowledge with service customers through various delivery channels. The collaboration between...
This article presents the motivation and the implementation of a semantic model developed to support diverse semantic services in a multimedia asset management system in a broadcaster. The model is mainly driven by DMS-1 (descriptive metadata scheme) standard, which is part of the multimedia exchange format standard defined by the broadcast industrial community and according to our knowledge we propose...
CSML is a semantic markup language created for the publishing and sharing of conceptual spaces, which are geometric structures that represent semantics at the conceptual level. CSML can be used to describe semantics that are not captured well by the ontology languages commonly used in the Semantic Web. Measurement of the semantic similarity of concepts as well as the combination of concepts without...
The intelligent smart home provides various services offering and amount of knowledge reasoning. However, programmers need to consider about constraints including scenarios in different houses, scenarios for different users, and even different resources. That is, infrastructures deployment and scenarios design are truly time consuming. Actually, it is more reasonable to make a home adapt to family...
Software agents that need to interpret the possible meaning of Semantic Web data should be able to deal with scenarios where the different agent's belief becomes contradicting. This is especially true for ontology mapping where different agents using different similarity measures create beliefs in the assessed similarities and this needs to be combined into a more coherent state. The combination of...
The research in the ontology-based information retrieval has made a significant progress recently, especially in the Web domain. In this kind of retrieval system, the domain ontology is used as the backbone of the searching process. However, with the heterogeneity of data storing formats on the Web, many of ontology-driven systems development approach suffer from inconsistencies during mapping between...
The specification of clinical items is a fundamental problem in the planning of a clinical trial. In this paper we present an approach that uses an RDF model in combination with a suite of OWL ontologies to formally describe the structural and conceptual composition of items. We argue that a semantic Web data model is more flexible than traditional relational models and therefore more appropriate...
Task allocation is still a fundamental problem in multi-agents system (MAS). It allows coalition formation of agents in order to cooperate together to perform a complex task. In general, the task allocation process includes two steps: i) finding the set of agents that can, potentially, participate to task allocation process, ii) computing the optimal allocation to execute the given task. In this work...
In this work we present "AlertMe", a semantics-based, context-aware notification system that provides personalized alerts to graduate students based on their preferences. An extensive description of the system is carried out. We present the underlying ontology that models the available knowledge, as well as how higher level knowledge inference and context-based decision making is achieved...
Mobility is an emerging area that comes up with several technologies and stakeholders. Dealing with the security requirement for mobile applications means acquiring all the knowledge and the available technologies for the design and deployment of a reliable and usable countermeasure. Not only the field lacks of standards but also requires several quality constraints. To assist developers to face such...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.