Browsing Τμήμα Πληροφορικής / Department of Computer Science by Type "Article"
Now showing items 21-40 of 976
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Adaptive nonlinear congestion controller for a differentiated-services framework
(2005)The growing demand of computer usage requires efficient ways of managing network traffic in order to avoid or at least limit the level of congestion in cases where increases in bandwidth are not desirable or possible. In ...
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Adaptive packet scheduling over a wireless channel under constrained jamming
(2017)In this work we consider the communication over a wireless link, between a sender and a receiver, being disrupted by a jammer. The objective of the sender is to transmit as much data as possible to the receiver in the most ...
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Adaptive scheduling over a wireless channel under constrained jamming
(2015)We consider a wireless channel between a single pair of stations (sender and receiver) that is being “watched” and disrupted by a malicious, adversarial jammer. The sender’s objective is to transmit as much useful data as ...
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Advanced Array Optimizations for High Performance Functional Languages
(1995)In this paper, we discuss and evaluate three opti- mizations for reducing memory management overhead and data copying costs in SISAL 1.2 programs that build arrays. The first, called framework preconstruction, eliminates ...
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ADVISE – A framework for evaluating cloud service elasticity behavior
(2014)Complex cloud services rely on different elasticity control processes to deal with dynamic requirement changes and workloads. However, enforcing an elasticity control process to a cloud service does not always lead to an ...
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Agent planning, negotiation and control of operation
(2004)This paper presents a framework that integrates three aspects of agency: planning, for proactive behaviour, negotiation, for social behaviour and resource achievement, and control of operation, for reconciling rationality ...
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Aggregated bandwidth allocation: Investigation of performance of classical constrained and genetic algorithm based optimisation techniques
(2002)We consider a high speed integrated services network, and investigate compare and contrast the performance of two algorithms for solving the Aggregated Bandwidth Allocation (BA) problem. The algorithms we focus our attention ...
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Air-crew scheduling through abduction
(1999)This paper presents the design and implementation of an aircrew assignment system based on the Artificial Intelligence principles and techniques of abductive reasoning as captured by the framework of Abductive Logic ...
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Algorithmic mechanisms for reliable crowdsourcing computation under collusion
(2015)We consider a computing system where a master processor assigns a task for execution to worker processors that may collude. We model the workers' decision of whether to comply (compute the task) or not (return a bogus ...
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Algorithmic mechanisms for reliable master-worker internet-based computing
(2014)We consider Internet-based master-worker computations, where a master processor assigns, across the Internet, a computational task to a set of untrusted worker processors, and collects their responses. Examples of such ...
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AM-FM texture image analysis of the intima and media layers of the carotid artery
(2009)The purpose of this paper is to propose the use of amplitude modulation-frequency modulation (AM-FM) features for describing atherosclerotic plaque features that are associated with clinical factors such as intima media ...
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AM-FM texture segmentation in electron microscopic muscle imaging
(2000)This paper describes the application of an amplitude modulation-frequency modulation (AM-FM) image representation in segmenting electron micrographs of skeletal muscle for the recognition of: 1) normal sarcomere ultrastructural ...
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Analysis of elderly users’ preferences and expectations on service robot’s personality, appearance and interaction
(2016)Fortunately, improvements in welfare and medical care will allow life expectancy in Europe’s population to increase by the year 2050. However, it is not always the case that living longer implies a healthier, more active ...
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Analysis of neuromuscular disorders using statistical and entropy metrics on surface EMG
(2008)This paper introduces the surface electromyogram (EMG) classification system based on statistical and entropy metrics. The system is intended for diagnostic use and enables classification of examined subject as normal, ...
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Anomalous chiral current commutators and divergence
(1988)The anomalous chiral current commutators and divergence are calculated in the canonical formalism, within a proposed general framework suitable for the study of anomalies. This framework incorporates a generalized form of ...
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APL AND GRAPH THEORY IN DYNAMIC SYSTEMS ANALYSIS.
(1981)It is demonstrated how well-established graph theoretic results can be exploited in the analysis of large-scale systems, and directed towards questions of design such as controllability and stability. The generalized nature ...
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Application acceleration with the cell broadband engine
(2010)The Cell Broadband Engine is a heterogeneous chip multiprocessor that combines a PowerPC processor core with eight single-instruction multiple-data accelerator cores and delivers high performance on many computationally ...