The demand for advanced information services is growing in terms of both the number of users and the services to be supported. Voice and low-rate data services are insufficient for users in a world where high-speed World Wide Web access is taken granted. The trend is toward global information networks offering flexible multimedia information services to users on demand, anywhere, anytime. Poten...

File-sharing systems, like many online and traditional information sharing communities (e.g. newsgroups, BBS, forums, interest clubs), are dynamical systems in nature. As peers get in and out of the system, the information content made available by the prevailing membership varies continually in amount as well as composition, which in turn affects all peers' join/leave decisions. As a result, t...

This WIP attempts to address the question—Can cluster file systems match specialized file systems such as Google's GFS for data-intensive applications? With the explosive growth of information and applications exploiting that information, large-scale data processing has emerged as an important challenge. Example applications include web search, indexing and mining, discovering biological functi...

Introduction: A flow level Markov model of fair bandwidth sharing under fluctuating demand has been proposed in [1, 2] for a case of file transfer flows, and in [3] for a case of a mixture of file transfer and streaming flows. These Markov models assume separation of timescales: given numbers of flows in progress, the fair bandwidth sharing protocol reaches equilibrium much faster than the numb...

We introduce the aggregating cache, and demonstrate how it can be used to reduce the number of file retrieval requests made by a caching client, improving storage system performance by reducing the impact of latency. The aggregating cache utilizes predetermined groupings of files to perform group retrievals. These groups are maintained by the server, and built dynamically using observed inter-f...

Background and Aim: Cleaning and shaping is one of the important steps in endodontic treatment, which has an important role in root canal treatment outcome. This study evaluated the rate of file fracture and file deformation in Neolix rotary system and K-files in shaping of the mesiobuccal canal of maxillary first molars with moderate curvature.    Materials and Methods: In this ex vivo exp...

Cloud computing promises large-scale and seamless access to vast quantities of data across the globe. Applications will demand the reliability, consistency, and performance of a traditional cluster file system regardless of the physical distance between data centers. Panache is a scalable, high-performance, clustered file system cache for parallel data-intensive applications that require wide a...

Over the last couple of decades, more and more presentations are done on computer screen. The need to store or broadcast such presentation efficiently is in high demand across different application areas. This paper proposes a screen capture representation called vector quantisation. This system captures sequence of actions on a computer screen and minimizes its video file size for storage. It ...