Τμήμα Πληροφορικής / Department of Computer Science: Recent submissions
Now showing items 741-760 of 1952
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Conference Object
The promise of big data technologies and challenges for image and video analytics in healthcare
(IEEE Computer Society, 2017)There is a growing need for developing fast and scalable methods for storing and processing large databases of healthcare images and videos. The paper reviews current medical image analysis techniques and the recent ...
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Power Counting for optimized capacity in MBMS enabled UTRAN
(2008)MBMS bearer services can be provided in each cell by either Point-to-Point or Point-to-Multipoint transmission mode but for efficiency a decision has to be made between the two approaches. Initially, the fundamental criterion ...
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Adaptive real-time HEVC encoding of emergency scenery video
(Institute of Electrical and Electronics Engineers Inc., 2015)This paper proposes the use of an adaptive HEVC encoding framework for the wireless transmission of real-time emergency scenery video. The goal of the proposed approach is to adapt HEVC encoding methods and parameters so ...
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Article
High-resolution, low-delay, and error-resilient medical ultrasound video communication using H.264/AVC over mobile WiMAX networks
(2013)In this study, we describe an effective video communication framework for the wireless transmission of H.264/AVC medical ultrasound video over mobile WiMAX networks. Medical ultrasound video is encoded using diagnostically ...
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High efficiency video coding for ultrasound video communication in m-health systems
(2012)Emerging high efficiency video compression methods and wider availability of wireless network infrastructure will significantly advance existing m-health applications. For medical video communications, the emerging video ...
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FRES-CAR: An adaptive cache replacement policy
(2005)Caching Web objects has become a common practice towards improving content delivery and users' servicing. A Web caching framework is characterized by its cache replacement policy, which identifies the objects (i.e. the ...
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Doctoral Thesis
Design and comparative performance evaluation of novel mobile handset antennas and their radiation effects on users.
(University of Glamorgan, 2000)
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Article
A clustering-based prefetching scheme on a Web cache environment
(2008)Web prefetching is an attractive solution to reduce the network resources consumed by Web services as well as the access latencies perceived by Web users. Unlike Web caching, which exploits the temporal locality, Web ...
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Article
Online social networks: Status and trends
(2011)The rapid proliferation of Online Social Network (OSN) sites has made a profound impact on the WWW, which tends to reshape its structure, design, and utility. Industry experts believe that OSNs create a potentially ...
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Abdominal Aortic Aneurysm medical video transmission
(2012)Abdominal Aortic Aneurysm (AAA) is responsible for approximately 1.3% of all deaths among men over the age of 65. Given the fact that once an aortic rupture occurs mortality rates are estimated between 80%-90%, national ...
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A latency-based object placement approach in content distribution networks
(2005)Content Distribution Networks (CDNs) are increasingly being used to disseminate data in today's Internet. The growing interest in CDNs is motivated by a common problem across disciplines: how does one reduce the load on ...
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AD-APT: Blurring the boundary between mobile advertising and user satisfaction
(Association for Computing Machinery, Inc, 2016)The choice between two dominant monetization strategies for mobile apps, i.e. capitalising on revenue generated from either users or advertisers, is not a straightforward one. While users are initially attracted more to ...
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A Study on Workload Characterization for a Web Proxy Server
(2003)The popularity of the World-Wide-Web has increased dramatically in the past few years. Web proxy servers have an important role in reducing server loads, network traffic, and client request latencies. This paper presents ...
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Article
Model-based cluster analysis for Web users sessions
(2005)One of the main issues in Web usage mining is the discovery of patterns in the navigational behavior of Web users. Standard approaches, such as clustering of users' sessions and discovering association rules or frequent ...
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Replication based on Objects Load under a Content Distribution Network
(Institute of Electrical and Electronics Engineers Inc., 2006)Users tend to use the Internet for "resource-hungry" applications (which involve content such as video, audio on-demand and distributed data) and at the same time, more and more applications (such as e-commerce, elearning ...
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Content classification for caching under CDNs
(2008)Content Delivery Networks (CDNs) provide an efficient support for serving "resource-hungry" applications while minimizing the network impact of content delivery as well as shifting the traffic away from overloaded origin ...
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Article
Searching for software on the EGEE infrastructure
(2010)Several large-scale Grid infrastructures are currently in operation around the world, federating an impressive collection of computational resources, a wide variety of application software, and hundreds of user communities. ...
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Effective keyword search for software resources installed in large-scale Grid infrastructures
(2009)In this paper, we investigate the problem of supporting keyword-based searching for the discovery of software resources that are installed on the nodes of largescale, federated Grid computing infrastructures. We address a ...
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Article
Insight and perspectives for Content Delivery Networks
(2006)Content delivery over the Web has become an important element of improving web performance. Content delivery Networks (CDN) has been proposed to maximize bandwidth, improve accessibility, and maintain correctness through ...
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Article
Integrating caching techniques in CDNs using a classification approach
(2008)Content Delivery Networks (CDNs) provide an efficient support for serving "resource-hungry" applications while minimizing the network impact of content delivery as well as shifting the traffic away from overloaded origin ...