This paper considers the problem of adapting the BitTorrent protocol for on-demand streaming. BitTorrent is a popular peer-to-peer file sharing protocol that efficiently accommodates a large number of requests for file downloads. Two components of the protocol, namely the rarest-first piece selection policy and the tit-for-tat algorithm for peer selection, are acknowledged to contribute toward ...

The dramatic increase of HTTP traffic on the Internet has resulted in wide-spread use of large caching proxy servers as critical Internet infrastructure components. With continued growth the demand for larger caches and higher performance proxies grows as well. The common bottleneck of large caching proxy servers is disk I/O. In this paper we evaluate ways to reduce the amount of required disk ...

When a client uses the service which is offered by cloud storage providers, he might worry about how to retrieve their original files securely. Relieving client’s storage burden and successfully retrieving data on demand are the ultimate purposes of cloud storage service. To achieve the above two aims, in this paper we propose a specific way to store and retrieve the out stored data in cloud st...

SAS® BI programmers have been clamoring for a way to quickly create mobile-enabled versions of existing SAS BI content. This can be difficult because there may be multiple BI reports that need to be converted. Fortunately, PROC STP (new in SAS 9.3) is a solution that can take a system’s existing SAS Stored Process Reports and create mobileenabled versions of them. This paper shows how PROC STP ...

We present a Java application programming interface (API), jmzIdentML, for the Human Proteome Organisation (HUPO) Proteomics Standards Initiative (PSI) mzIdentML standard for peptide and protein identification data. The API combines the power of Java Architecture of XML Binding (JAXB) and an XPath-based random-access indexer to allow a fast and efficient mapping of extensible markup language (X...