IEEE Internet Computing

Basic similarities among the several service-registry standards that exist today suggest the potential for interoperability. Given that service registries are key components inWeb services architectures, interoperability will play an increasingly important role in facilitating dynamic ...

... Nick Pope • Security & Standards Associates Juan Carlos Cruellas • Universitat Politècnica de Catalunya Page 2. What Does Oasis DSS Do? ... The user sends a request through a secure chan-nel for the server to verify the signed document. ...

Shape matching is one of the main research procedures performed by archaeologists. Real time 3D computer graphics, 3D digitisation and content based retrieval are technologies that can facilitate the automation of the shape matching process. As pottery plays a significant role in understanding ancient societies, we focus on the development of compact shape descriptors that can be used for content based retrieval of complete or nearly complete 3D pottery replicas. In this work, we present shape descriptors that exploit the axial symmetry feature and attempt to enhance the archaeological study of pottery by using 3D graphics technologies. We evaluated the performance of the descriptors using a 3D pottery ground truth repository as a test bed. We created an experimental 3D pottery search engine and attempted to integrate a content based retrieval mechanism in a 3D virtual reality environment.

Most user interfaces use color, which can greatly enhance their design. Because the use of color is typically a usability issue, it rarely causes security failures. However, using color when designing CAPTCHAs, a standard security technology that many commercial websites apply widely, can have an impact on usability and interesting but critical implications for security. Here, the authors examine some

In this paper, we propose a Progressive Differential Thresholding (PDT) framework for coordinated network anomaly detection. Under the proposed framework, nodes present on a packet's path progressively encode their opinion (malicious or benign) inside a packet. Subsequent nodes on the path use the encoded opinion as side-information to adapt their anomaly detection thresholds and in turn improve their classification accuracies. Accuracy benefits of PDT are evaluated through experimental evaluations of multiple non-proprietary anomaly detectors on a publicly-available attack dataset. These evaluations indicate that, while being distributed and having negligible complexity and communication overheads, the proposed PDT framework provides considerable and consistent improvements in anomaly detection accuracy. We observe upto 54% improvements in ADS detection accuracy while upto 4 times reduction in the false alarm rates.

It is well known that software is a powerful tool for circuit simulation and analysis, conceived to verify electronic systems. However, some kind of analyses may not be completed with only one software suit, due to the nature of the system under test. In this work, a technique is presented to overcome some limitations that are present, in particular, when

The IP multimedia subsystem (IMS) defines a generic architecture to support communication services over a Session Initiation Protocol (SIP) infrastructure. In the IMS architecture, application servers host and execute the IMS service logic. These servers can be SIP application servers, open services architecture (OSA) application servers, or a customized applications for mobile networks using enhanced logic (Camel) service environment. Some