Peer-to-Peer networks are divided into two main classes: unstructured and structured. Overlays from the first class are better suited for exhaustive search, whereas those from the second class offer very efficient key-value lookups. In this paper we present a novel overlay, PathFinder, which combines the advantages of both classes within one single overlay for the first time. Our evaluation sho...

This paper describes the systems developed by PUC Minas and IRISA for the person discovery task at MediaEval 2016. We adopt a graph-based representation and investigate two tag-propagation approaches to associate overlays cooccurring with some speaking faces to other visually or audio-visually similar speaking faces. Given a video, we first build a graph from the detected speaking faces (nodes)...

Siliceous fly ash can be applied as a cement replacement material for mortars used in cement-based floor overlays. At present, there is no knowledge of the appropriate curing conditions that need to on concrete floors. Moreover, previous research related has left gaps which such floors are cured. This study focuses understanding importance typical overlays physical, chemical, mechanical, and mi...

This paper describes an architecture for supporting multiview information overlays within the InVision visualisation framework. The concept of an information overlay is defined as well its key benefits, including the ability to support coordination of presentation across differing views. We describe how we can then abstract a view to being simply the lowest overlay in a generalised stack of inf...

We present a mechanism for providing differential data protection to publish/subscribe distributed systems, such as those used in peer-to-peer computing, grid environments, and others. This mechanism, termed “security overlays”, incorporates credential-based communication channel creation, subscription and extension. We describe a conceptual model of publish/subscribe services that is made conc...

In this paper, we explore the role of privacy-enhancing overlays in Bitcoin. To examine the effectiveness of different solutions, we first propose a formal definitional framework for virtual currencies and put forth a new notion of anonymity, taint resistance, that they can satisfy. We then approach the problem from a theoretical angle, by proposing various solutions to achieve provable taint r...

The major integral plasma membrane protein (IP39) of Euglena gracilis was radiolabeled, peptide mapped, and dissected with proteases to identify cytoplasmic domains that bind and anchor proteins of the cell surface. When plasma membranes were radioiodinated and extracted with octyl glucoside, 98% of the extracted label was found in IP39 or the 68- and 110-kD oligomers of IP39. The octyl glucosi...

Over the past several years, we have seen the emergence of numerous types of socalled "overlay" networks in the Internet. There are many diverse examples of such overlay networks including the content-delivery-caching networks, implemented by companies like Akamai, the peer-to-peer file sharing networks associated with applications such as BitTorrent, the voice-over-IP services offered via Skyp...