Browsing by Subject "Data reduction"
Now showing items 1-20 of 29
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Doctoral Thesis Open Access
Algorithms and indexing structures for spatial big data
(Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2018-07)Ζούμε στην εποχή των μεγάλων δεδομένων, όπου παράγονται ετερογενή δεδομένα τα οποία αποθηκεύονται με εκθετικό ρυθμό. Τα παραδοσιακά συστήματα διαχείρισης δεδομένων δεν είναι ικανά να συλλέγουν, να διαχειρίζονται και να ...
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Article
Classification of rainfall variability by using artificial neural networks
(2001)In this paper, the usefulness of artificial neural networks (ANNs) as a suitable tool for the study of the medium and long-term climatic variability is examined. A method for classifying the inherent variability of climate ...
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Article
A control theoretical approach to self-optimizing block transfer in Web service grids
(2008)Nowadays, Web Services (WS) play an important role in the dissemination and distributed processing of large amounts of data that become available on the Web. In many cases, it is essential to retrieve and process such data ...
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Conference Object
Design and evaluation of a roadway controller for freeway traffic
(2005)In this paper, a roadway controller that optimally coordinates speed limits and ramp metering to improve freeway traffic efficiency is designed using the Model Predictive Control (MPC) methodology. The performance of the ...
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Conference Object
Distributed context management in a Mobility and Adaptation Enabling Middleware (MADAM)
(2006)As computing devices are getting smaller, we tend to bring them everywhere. Consequently the operating conditions of the devices are constantly changing (e.g. changing user requirements, change in the system context and ...
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Conference Object
Dynamic responses in polymer-clay gels
(2005)The shear orientation of three polymer-clay gels has been investigated by means of small angle neutron scattering (SANS). The gels have the same polymer and clay concentrations but different polymer molecular weight. The ...
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Article
Empirical Bayes approach to block wavelet function estimation
(2002)Wavelet methods have demonstrated considerable success in function estimation through term-by-term thresholding of the empirical wavelet coefficients. However, it has been shown that grouping the empirical wavelet coefficients ...
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Conference Object
Exploring graphics processor performance for general purpose applications
(2005)Graphics processors are designed to perform many floating-point operations per second. Consequently, they are an attractive architecture for high-performance computing at a low cost. Nevertheless, it is still not very clear ...
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Article
Failure identification in smart grids based on Petri net modeling
(2011)This paper presents a method to identify and localize failures in smart grids. The method is based on a carefully designed Petri net (PN) that captures the modeling details of the protection system of the distribution ...
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Article
Hiding resources that can fail: An axiomatic perspective
(2001)In earlier work, we presented a process algebra, PACSR, that uses a notion of resource failure to capture probabilistic behavior in reactive systems. PACSR also supports an operator for resource hiding. In this paper, we ...
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Article
Inference of gene relations from microarray data by abduction
(2005)We describe an application of Abductive Logic Programming (ALP) to the analysis of an important class of DNA microarray experiments. We develop an ALP theory that provides a simple and general model of how gene interactions ...
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Article
Lattice thermal conductivity of K 2(Bi 1-zSb z) 8Se 13 solid solutions
(2004)The influence of the Bi/Sb partial substitution to the lattice thermal conductivity of the K 2(Bi 1-zSb z) 8Se 13 solid solution series was studied. The variation of the lattice thermal conductivity with comparison was ...
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Article
Limits of data value predictability
(1999)The predictability of data values is studied at a fundamental level. Two basic predictor models are defined: Computational predictors perform an operation on previous values to yield predicted next values. Examples we study ...
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Article
Long-lived Rambo: Trading knowledge for communication
(2007)Shareable data services providing consistency guarantees, such as atomicity (linearizability), make building distributed systems easier. However, combining linearizability with efficiency in practical algorithms is difficult. ...
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Conference Object
Marine propeller design using artificial neural networks
(IEEE, 1999)The proper selection of marine propellers is in general an involved and time-consuming design task. It is mostly based on searching large mounts of experimental data in order to find a proper matching of performance ...
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Article
Measurement of bottom-quark hadron masses in exclusive J/ψ decays with the CDF detector
(2006)We measure the masses of b hadrons in exclusively reconstructed final states containing a J/ψ→μ-μ+ decay using 220pb-1 of data collected by the CDF II experiment. We find: m(B+)=5279.10±0.41(stat.) ±0.36(sys.)MeV/c2, ...
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Conference Object
Modelling significant wave height in the North Atlantic
(2003)The surface of the ocean, and so such quantities as the significant wave height, can be thought of as a random surface in space which develops over time. In this paper, we explore certain types of random fields (in space ...
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Article
Observation of diffractive J/ψ production at the Fermilab Tevatron
(2001)The first observation of diffractive J/ψ(→μ+μ-) production in p̄p collisions at s√=1.8 TeV was presented. Events were selected with a pair of muon candidates using a three-level dimuon trigger system. The dimuon mass ...
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Article
On the effect of misspecifying the density ratio model
(2006)The density ratio model specifies that the log-likelihood ratio of two unknown densities is of known linear form which depends on some finite dimensional parameters. The model can be broadened to allow for m-samples in a ...
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Conference Object
The PersonaCheck System for Personalizing M-Commerce Checkout Processes
(Institute of Electrical and Electronics Engineers Inc., 2015)This demonstration paper presents a Web-based adaptive interactive system for personalizing the checkout process of M-Commerce Web environments, coined Persona Check. In particular, the system personalizes the visual and ...