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Browsing by Subject "Classification"

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    • Conference Object  

      AM-FM representations for the characterization of carotid plaque ultrasound Images 

      Christodoulou, Christodoulos I.; Pattichis, Constantinos S.; Murray, V.; Pattichis, Marios S.; Nicolaïdes, Andrew N. (2008)
      Stroke is the third leading cause of death in the western world and a major cause of disability in adults. The objective of this work was to investigate the use of AM-FM representations for the characterization of carotid ...

    • Conference Object  

      Annotating web service sections with combined classification 

      Kapitsaki, Georgia M. (Institute of Electrical and Electronics Engineers Inc., 2014)
      Web services are considered reusable elements that can be exploited stand-alone or as part of wider, generic or domain-specific, applications. With a vast variety of Web Services being offered by service providers, annotation ...

    • Article  

      Authenticity of the traditional Cypriot spirit "zivania" on the basis of 1H NMR spectroscopy diagnostic parameters and statistical analysis 

      Petrakis, Panos V.; Touris, Ioannis; Liouni, Maria; Zervou, Maria; Kyrikou, Ioanna; Kokkinofta, Rebecca I.; Theocharis, Charis R.; Mavromoustakos, Thomas M. (2005)
      A previous publication (Kokkinofta et al. J. Agric. Food Chem. 2003, 51, 6233-6239) discussed the use of inductively coupled plasma spectroscopy to differentiate between the traditional Cypriot alcoholic beverage zivania ...

    • Article  

      Authenticity of the traditional Cypriot spirit "zivania" on the basis of metal content using a combination of coupled plasma spectroscopy and statistical analysis 

      Kokkinofta, Rebecca I.; Petrakis, Panos V.; Mavromoustakos, Thomas M.; Theocharis, Charis R. (2003)
      Sixty-eight alcoholic beverages ranging in alcoholic degree between 40 and 55 from different countries were analyzed for their 16 most abundant metal elements using inductively coupled plasma (ICP) spectroscopy. The results ...

    • Article  

      Automated detection of pavement patches utilizing support vector machine classification 

      Hadjidemetriou, Georgios M.; Christodoulou, Symeon E.; Vela, Patricio A. (2016)
      The efficient condition assessment of road networks is crucial to prevent pavement distresses which can cause a spectrum of detrimental effects. The need for automation of the underlying process is originated from the ...

    • Conference Object  

      Bound on the probability of HMM misclassification 

      Keroglou, C.; Hadjicostis, Christoforos N. (2011)
      In this paper we consider the problem of classifying a sequence of observations among two known hidden Markov models (HMMs). We use a classifier that minimizes the probability of error (i.e., the probability of misclassification), ...

    • Conference Object  

      Bounds on the probability of misclassification among hidden Markov models 

      Keroglou, C.; Hadjicostis, Christoforos N. (2011)
      Given a sequence of observations, classification among two known hidden Markov models (HMMs) can be accomplished with a classifier that minimizes the probability of error (i.e., the probability of misclassification) by ...

    • Article  

      Characterization of the traditional Cypriot spirit Zivania by means of Counterpropagation Artificial Neural Networks 

      Ballabio, D.; Kokkinofta, Rebecca I.; Todeschini, R.; Theocharis, Charis R. (2007)
      Multivariate chemometric techniques, such as Principal Component Analysis and Discriminant Analysis, were previously used to determine the authenticity of the Cypriot traditional spirit Zivania, but these techniques revealed ...

    • Article  

      Chemometric characterization of the cypriot spirit "Zivania" 

      Kokkinofta, Rebecca I.; Theocharis, Charis R. (2005)
      In 42 alcoholic beverages produced in Cyprus and other countries, 26 chemical and physical-chemical variables were determined by HPLC and GC chromatography, 1H NMR and ICP spectroscopy, and other techniques. Data were ...

    • Conference Object  

      Classification and data mining for hysteroscopy imaging in gynaecology 

      Neofytou, Marios S.; Loizou, A.; Tanos, Vasilios; Pattichis, Marios S.; Pattichis, Constantinos S. (2008)
      The objective of this study was to develop a CAD system for the classification of hysteroscopy images of the endometrium (with suspicious areas of cancer), based on two data mining procedures, the C4.5 and the Hybrid ...

    • Conference Object  

      Classification of surface electromyographic signals using AM-FM features 

      Christodoulou, Christodoulos I.; Kaplanis, P. A.; Murray, V.; Pattichis, Marios S.; Pattichis, Constantinos S. (2009)
      The objective of this study was to evaluate the usefulness of AM-FM features extracted from surface electro myographic (SEMG) signals for the assessment of neuromuscular disorders at different force levels. SEMG signals ...

    • Article  

      Computer-aided diagnosis in hysteroscopic imaging 

      Neofytou, Marios S.; Tanos, Vasilios; Constantinou, Ioannis P.; Kyriacou, Efthyvoulos C.; Pattichis, Marios S.; Pattichis, Constantinos S. (2015)
      The paper presents the development of a computeraided diagnostic (CAD) system for the early detection of endometrial cancer. The proposed CAD system supports reproducibility through texture feature standardization, ...

    • Article  

      Enhanced HIV-1 surveillance using molecular epidemiology to study and monitor HIV-1 outbreaks among intravenous drug users (IDUs) in Athens and Bucharest 

      Paraskeva, D.; Paraschiv, S.; Sypsa, V.; Nikolopoulos, Georgios K.; Tsiara, Chrissa G.; Magiorkinis, Gkikas; Psichogiou, M.; Flampouris, Andreas; Mardarescu, Mariana; Niculescu, I.; Batan, Ionelia; Malliori-Minerva, Melpomeni; Otelea, D.; Hatzakis, A. (2015)
      Background: A significant increase in HIV-1 diagnoses was reported among Injecting Drug Users (IDUs) in the Athens (17-fold) and Bucharest (9-fold) metropolitan areas starting 2011. Methods: Molecular analyses were conducted ...

    • Article  

      Feature mapping through maximization of the atomic interclass distances 

      Karatsiolis, Savvas; Schizas, Christos N. (2015)
      We discuss a way of implementing feature mapping for classification problems by expressing the given data through a set of functions comprising of a mixture of convex functions. In this way, a certain pattern’s potential ...

    • Conference Object  

      From taxonomies to folksonomies: A roadmap from formal to informal modeling of medical concepts and objects 

      Bamidis, Panagiotis D.; Kaldoudi, E.; Pattichis, Constantinos S. (2009)
      The exploitation of nomenclatures, taxonomies, terminologies and classification of medical diseases, procedures, guidelines has been pivotal to advances in the healthcare domain. Parallel to those have been evolutions in ...

    • Article  

      Global genetic variation of HIV-1 infection 

      Anastassopoulou, C. G.; Kostrikis, Leontios G. (2006)
      Variability, both at the population (interhost) as well as at the individual (intrahost) level is a key property of HIV that stems mainly from the inherent infidelity of the reverse transcriptase enzyme that the virus uses ...

    • Conference Object  

      Hidden markov model classification based on empirical frequencies of observed symbols 

      Keroglou, C.; Hadjicostis, Christoforos N. (IFAC Secretariat, 2014)
      Given a sequence of observations, classification among two known hidden Markov models (HMMs) can be accomplished with a classifier that minimizes the probability of error (i.e., the probability of misclassification) by ...

    • Article  

      HIV epidemiology in Greece 

      Nikolopoulos, Georgios K.; Paraskeva, D.; Hatzakis, A. (2008)
      Greece has experienced early the effect of HIV/AIDS on morbidity and mortality. The era of highly active antiretroviral therapy has alleviated many of the consequences of the epidemic, however, HIV infection remains an ...

    • Article  

      Intracellular signalling via the AKT axis and downstream effectors is active and prognostically significant in cancer of unknown primary (CUP): A study of 100 CUP cases 

      Golfinopoulos, Vassilis; Pentheroudakis, George; Goussia, Anna; Siozopoulou, V.; Bobos, M.; Krikelis, D.; Cervantes, A.; Ciuleanu, T.; Marselos, M.; Fountzilas, George; Malamou-Mitsi, Vassiliki D.; Pavlidis, Nicholas (2012)
      Background: Hypothesising that cancer of unknown primary (CUP) may harbour unique characteristics, we present a translational study of the immunohistochemical expression and clinical correlation of key PTEN/AKT pathway ...

    • Article  

      Motor vehicle collision fatalities involving alcohol and illicit drugs in Greece: The need for management protocols and a reassessment of surveillance 

      Papadopoulos, I. N.; Bonovas, Stefanos; Kanakaris, Nikolaos K.; Konstantiadou, Ioanna; Nikolopoulos, Georgios K.; Konstantoudakis, Georgios; Leukidis, Christos (2010)
      Aims: The frequency and the effect of alcohol and illicit drugs on injury type, severity and location of death in motor vehicle collision (MVC) fatalities were investigated. Design: Retrospective case-control study based ...

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