Advanced management of environmental data requires appropriate metadata and tooling. Moreover, contemporary environmental data is heterogenous, encompassing also data about people, environmentalyrelated projects, and documents. Also geographicaland time-related information are vital for any environmental data and should be supported. To satisfy these requirements, “semantic wikis” represent sui...

Resources and services are accessible in pervasive computing environments from anywhere and at any time. Also, due to ever-changing nature of such environments, the identity of users is unknown. However, users must be able to access the required resources based on their contexts. These and other similar complexities necessitate dynamic and context-aware access control models for such environmen...

In high-end desktop videoconferencing systems, several windows compete for screen space, particularly when users also share an application. Ideally, the layout of these windows should satisfy both (a) layout guidelines for establishing a rich communication channel and (b) user preferences for window layouts. This paper presents an exploration of user preferences and their interplay with previou...

In present scenario, with the unprecedented development of electronics and tremendous growth of the Internet, World Wide Web (WWW) has become common and popular source of information for varied category of users. Web search engines provide interface between users and web to extract the desired information from WWW. The user possess query to search engine and in response the search engine return...

Web services as independent software components are published on the Internet by service providers and services are then called by users’ request. However, in many cases, no service alone can be found in the service repository that could satisfy the applicant satisfaction. Service composition provides new components by using an interactive model to accelerate the programs. Prior to service comp...

We introduce normalized nonnegative models (NNM) for explorative data analysis. NNMs are partial convexifications of models from probability theory. We demonstrate their value at the example of item recommendation. We show that NNM-based recommender systems satisfy three criteria that all recommender systems should ideally satisfy: high predictive power, computational tractability, and expressi...

Cities present new challenges and needs to satisfy and improve lifestyle for their citizens under the concept “Smart City”. In order to achieve this goal in a global manner, new technologies are required as the robotic one. But Public entities unknown the possibilities offered by this technology to get solutions to their needs. In this paper the development of the Innovative Public Procurement ...

Department of Pediatric Hemato-Oncology, Edmond and Lily Safra Children’s Hospital, Sheba Medical Centre, Tel-Hashomer, Ramat Gan, and Tel Aviv University Medical School, Tel Aviv, Israel; Department of Haematology, Sheffield Children’s Hospital, Sheffield, United Kingdom; Pediatric Oncology/ Hematology, Erasmus MC–Sophia Children’s Hospital, Rotterdam, The Netherlands; and Division of Haematol...