A novel approach, based on the execution state of distributed programs, is proposed in this paper, called Aeneas. U is for the real-time performance analysis of distributed programs with reliability-constrains, In Aen...
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Multimedia streaming and video on demand (VoD) services are among those hottest applications over the Internet. Traditional client/server pattern is stumbled due to the lack of scalability and limitation of service ca...
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ISBN:
(纸本)0780393112
Multimedia streaming and video on demand (VoD) services are among those hottest applications over the Internet. Traditional client/server pattern is stumbled due to the lack of scalability and limitation of service capacity. Peer-to-Peer paradigm has been introduced to solve these issues. The key idea is that peers not only receive multimedia stream but also serve multimedia data to others. In this paper, we present a novel scheme that builds a multimedia streaming and caching service on a distributed hash table (DHT) based overlay. We adopt DHT to establish a decentralized caching service. The location information of cached segments is distributed among different peers and the information about segments from the same video is organized into an application-level multicast group. We also propose a cache replace algorithm on each peer. In our simulation, our design achieves good scalability with a low service reject rate. Besides, good load balance is also achieved as well as desired quality-of-service.
In this paper, we present the design and implementation of Coordinated Intrusion Prevention System (CIPS), which includes Parallel Firewall (PFW), Flow Detection (FD) and Multiple Intrusion Detection System (MIDS) to ...
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Text-based image search engine and content-based image retrieval (CBIR) have achieved much progress in commercial and academic community respectively. However, few attempts have been conducted to integrate the two tec...
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Access to scientific literature information is a very important, as well as time-consuming daily work for scientific researchers. Current methods of retrieval are usually limited to keyword-based searching using infor...
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gridcomputing is becoming more and more attractive for coordinating large-scale heterogeneous resource sharing and problem solving. From the viewpoint of decentralization and interoperability, we add agent layer base...
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Data intensive task is becoming one of the most important applications in grid environment. The scale of data sets has been hundreds of terabytes and soon will be petabytes. The primary problem we face is how to organ...
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This paper proposes a semantic overlay based on the small world phenomenon that facilitates efficient search for information retrieval in unstructured P2P systems. In the semantic overlay, each node maintains a number...
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ISBN:
(纸本)1595933239
This paper proposes a semantic overlay based on the small world phenomenon that facilitates efficient search for information retrieval in unstructured P2P systems. In the semantic overlay, each node maintains a number of short-range links which are semantically similar to each other, together with a small collection of long-range links that help increasing recall rate of information retrieval and reduce network traffic as well. Experimental results show that our model can improve performance by 150% compared to Gnutella and by up to 60% compared to the Interest-based model - a similar shortcut-based search technique.
The emerging grids need an efficient replica location mechanism. In the experience of developing Chinagrid Supporting Platform (CGSP), a grid middleware that builds a uniform platform supporting multiple grid-based ap...
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MIGP (Medical Image grid Platform) realizes information retrieval and integration in extensive distributed medical information systems, which adapts to the essential requirement for the development of healthcare infor...
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