We consider a network of peers, where each peer has its own collection obtained by individually crawling the web. When designing a distributed search system for such networks, an important task is how to efficiently perform query routing, i.e., how to find the most promising peers to answer the query. However, the efficiency of those routing techniques depends heavily on the underlying network ...

Web search engines designed on top of peer-to-peer (P2P) overlay networks show promise to enable attractive search scenarios operating at a large scale. However the design of effective indexing techniques for extremely large document collections still raises a number of open technical challenges. Resource sharing, self-organization, and low maintenance costs are favorable properties of P2P over...

In this paper we optimize the back-to-front overlay of Through Silicon Via (TSV) patterning for a 5μm via last process. After TSV patterning, overlay verification poses a challenge because the reference layer is buried underneath the thinned silicon wafer. For both back-to-front alignment and verification a wafer stepper equipped with a Dual Side Alignment (DSA) system is used. The stepper has ...

Meares-Irlen Syndrome is characterised by visual stress (visual discomfort) and visual perceptual distortions that can be alleviated by individually prescribed coloured filters. The benefit from coloured filters can be demonstrated with the Wilkins Rate of Reading Test (WRRT). Previous research using individually prescribed coloured overlays (sheets of plastic placed on a page) found that betwe...

OVERLAY MULTICAST FOR REAL-TIME DISTRIBUTED SIMULATION This report provides a top-level architecture for an overlay multicast service in support of distributed real-time virtual simulations over an open network environment. The top-level architecture for the overlay protocol was developed based on key concepts identified in the laboratory performance studies, the analytical model, and the studi...

Internet overlay services may exhibit poor performance when their designs ignore the topology and link properties of the underlying Internet substrate. Various service-specific techniques have been proposed to select good overlay links and thus enhance the performance. In this paper, we explore the model of providing a substrate-aware overlay structure management layer to assist the constructio...

Overlay networks are application-layer networks that are constructed using the existing Internet infrastructure. Nodes in an overlay network construct logical links toward other nodes to form an overlay topology. Common routing algorithms, such as the link state and distance vector algorithms, are then used to determine how to route data in the overlay network. Previous work has demonstrated th...

1 The frequent outbreak of severe foodborne diseases warns of a potential threat that the 2 global trade networks could spread fatal pathogens. The global trade network is a 3 typical overlay network, which compounds multiple standalone trade networks 4 representing the transmission of a single product and connecting the same set of 5 countries and territories through their own set of trade int...

Recently overlay networks have emerged as an efficient and flexible method for content distribution. An overlay network is a network running on top of another network, usually the Internet. This network is formed by a subset of underlying physical nodes. The connections between the overlay nodes are provided by overlay links, each of which is usually composed of one or more physical link. These...

The dynamic topology design is one of the important steps for the design of an overlay network. Traffic characteristic and volume, and behavior of nodes are the main issues that affect the performance of overlay networks, and have to be considered in designing a good topology. In this paper, we study the problem of designing the dynamic overlay topology based on estimating and predicting the Or...