In a number of distributed computing applications, messages must be transmitted on demand between processes running at different locations on the Internet. The end-to-end delays experienced by the messages have a significant “random” component due to the complicated nature of network traffic. We propose a method based on delay-regression estimation to achieve low end-to-end delays for message t...

We introduce ZBCast, a primitive that provides Persistent Global Total Order for messages delivered to a group of participants that can crash and subsequently recover and that can become temporarily partitioned and then remerge due to network conditions. The paper presents in detail and proves the correctness of an efficient algorithm that implements ZBCast on top of existing group communicatio...

Many celebrate the Internet’s ability to connect individuals and facilitate collective action toward a common goal. While numerous systems have been designed to support particular aspects of collective action, few systems support participatory, end-to-end collective action in which a crowd or community identifies opportunities, formulates goals, brainstorms ideas and develops plans, mobilizes, ...

Audits have long been used as a tool for checking that safety management processes are being followed and system safety principles applied, to provide senior managers with assurance that safe outcomes occur by design and not by luck. In a complex hierarchical organisation, the tendency is for audits to concentrate on safety management systems based on individual units within the hierarchy, rath...

We introduce the French Street Name Signs (FSNS) Dataset consisting of more than a million images of street name signs cropped from Google Street View images of France. Each image contains several views of the same street name sign. Every image has normalized, title case folded ground-truth text as it would appear on a map. We believe that the FSNS dataset is large and complex enough to train a...

This paper discusses IP end-to-end QoS support issues addressed in the IST SUITED project whose main goal is to design and validate a complemented satellite/terrestrial broadband communication infrastructure able to provide mobile and portable, QoS guaranteed, Internet services.

In this paper, we introduce a secure transcoding framework that enables network intermediaries such as proxies to transcode multimedia data without violating end-to-end security guarantees. In our approach, an encoder decomposes a data stream at the source into multiple streams, encrypts each stream independently, and annotates each stream with clear-text metadata. An intermediary performs tran...

A comparison of three different end-to-end security solutions for the stream control transmission protocol (SCTP) is presented in this paper. The compared solutions are SCTP over IPsec, TLS over SCTP, and secure socket SCTP (SS-SCTP). The two former are standardized solutions, whereas the latter is a newly proposed solution that was designed to offer as much security differentiation support as ...

Work on the End-to-End Provenance System (EEPS) began in the late summer of 2009. The EEPS effort seeks to explore the three central questions in provenance systems: (1) “Where and how do I design secure hostlevel provenance collecting instruments (called provenance monitors)?”; (2) “How do I extend completeness and accuracy guarantees to distributed systems and computations?”; and (3) “What ar...

This paper describes an end-to-end prototype system for automated scoring of spoken responses in a novel assessment for teachers of English as a Foreign Language who are not native speakers of English. The 21 speaking items contained in the assessment elicit both restricted and moderately restricted responses, and their aim is to assess the essential speaking skills that English teachers need i...