Retraction This article [1] was submitted to International Seminars of Surgical Oncology without the knowledge or consent of either Prof Karakayali or Prof Haberal, and is being retracted for this reason. An apology is extended to Prof Karakayali and Prof Haberal as well as the editorial and publishing staff and readers of the journal. which permits unrestricted use, distribution, and reproduct...

Interorganizational cooperation is more and more organized by the paradigm of services. The service-oriented architecture (SOA) provides a general framework for service interaction. It describes three roles, service provider, service requester, and service broker, together with the operations publish, find, and bind. We provide a formal method based on nondeterministic automata to model service...

Blockchain technology provides several suitable characteristics such as immutability, decentralization and verifiable ledger. It records the transactions in a decentralized way can be integrated into fields like eHealth, e-Government smart cities etc. However, blockchain has privacy security issues, one of them is on-chain data privacy. To deal with this issue we provide privacy-preserving solu...

In this paper we discuss the problem of privacy and information disclosure in ubiquitous and pervasive computing environments. We describe a framework that uses context information to selectively disclose personal information to service providers while keeping the humancomputer interaction non-intrusive. For each interaction with a service provider, our framework will take previously disclosed ...

We present a novel approach for the sound orchestration of services. It is based on Orcharts and Typecharts: a service orchestration language and an associated behavioural typing language. Sessions play a pivotal role in this approach. Orcharts (orchestration charts) define session based services and Typecharts provide for session types with complex interaction patterns that generalise the requ...

Due to the emergence of new coronavirus epidemic, people's attention has been paid online shopping, and achievements live broadcast e-commerce are particularly impressive. Different from traditional window-based e-commerce, is separated limitation shopping platform embedded into content platforms such as short videos. This paper mainly discussed influence interactive marketing on consumers’ pur...

Online elections make a natural target for distributed denial of service attacks. Election agencies wary of disruptions to voting may procure DDoS protection services from a cloud provider. However, current DDoS detection and mitigation methods come at the cost of significantly increased trust in the cloud provider. In this paper we examine the security implications of denial-of-service prevent...