George Ioannidis

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Improvements and portability of technologies and smart devices has enabled rapid growth in the amount of user generated media such as photographs and videos. Whilst various media generation and management systems exist it still remains a challenge to discover the "right" metadata information for the right purpose. This paper describes an approach to extract(More)
In this paper, we describe the IM3I system, which provides a flexible approach to managing and publishing collections of images and videos. The system is based on web services that allow automatic and manual annotation, retrieval, browsing and authoring of multimedia. Results of user evaluations, performed by professional archivists and archive managers on(More)
Cloud providers typically implement abstractions for network virtualization on the server, within the operating system that hosts the tenant virtual machines or containers. Despite being flexible and convenient, this approach has fundamental problems: incompatibility with bare-metal support, unnecessary performance overhead, and susceptibility to hypervisor(More)
In today's world of internet connected devices and smart phones, it has become effortless to create and consume vast amounts of information. This is particularly the case with photographs, with vast amounts being created and shared online every day. Never-the-less, it still remains a challenge to discover the "right" information for the appropriate purpose.(More)
—In an increasingly instrumented and interconnected digital world, citizens generate vast amounts of data, much of it personal, and nearly all of it valuable. However, controlling who can collect it, limiting what they can do with it, and determining how best to protect it, remain deeply undecided issues. This position paper proposes a socio-technical(More)
Lynch syndrome is the most common form of hereditary colorectal cancer and is caused by germline mutations in the mismatch repair (MMR) genes MLH1, MSH2, MSH6 and PMS2. Mutation carriers have an increased lifetime risk of developing colorectal cancer as well as other extracolonic tumours. The aim of the current study was to evaluate the frequency and(More)
In this paper, we describe the euTV system, which provides a flexible approach to collect, manage, annotate and publish collections of images, videos and textual documents. The system is based on a Service Oriented Architecture that allows to combine and orchestrate a large set of web services for automatic and manual annotation, retrieval, browsing,(More)