Now showing items 1-12 of 12

  • Computing scientometrics in large-scale academic search engines with MapReduce 

    Akritidis, L.; Bozanis, P. (2012)
    Apart from the well-established facility of searching for research articles, the modern academic search engines also provide information regarding the scientists themselves. Until recently, this information was limited to ...
  • A data perturbation approach to sensitive classification rule hiding 

    Delis, A.; Verykios, V. S.; Tsitsonis, A. A. (2010)
    This paper focuses on privacy preservation in classification rule mining. The subject at hand is approached through the proposition of a data perturbation approach for hiding sensitive classification rules in categorical ...
  • Evolutionary principal direction divisive partitioning 

    Tasoulis, S. K.; Tasoulis, D. K.; Plagianakos, V. P. (2010)
    While data clustering has a long history and a large amount of research has been devoted to the development of clustering algorithms, significant challenges still remain. One of the most important challenges in the field ...
  • Heterogeneous data fusion and selection in high-volume molecular and imaging datasets 

    Moutselos, K.; Maglogiannis, I.; Chatziioannou, A. (2012)
    In this work, two disparate datasets, concerning the study of the same physiological type of cutaneous melanoma but derived from different donors, one of image (dermatoscopy) and the other of molecular (trascriptomic ...
  • Join-queries between two spatial datasets indexed by a single R*-tree 

    Vassilakopoulos, M.; Corral, A.; Karanikolas, N. N. (2011)
    A spatial join, a common query in Spatial Databases and Geographical Information Systems (GIS), consists in testing every possible pair of data elements belonging to two spatial datasets against a spatial predicate. This ...
  • Merging R-trees 

    Vasaitis, V.; Nanopoulos, A.; Bozanis, P. (2004)
    R-trees, since their introduction in 1984, have been proven to be one of the most well-behaved practical data structures for accommodating dynamic massive sets of geometric objects and conducting a diverse set of queries ...
  • Optimize a Thru Flight Inspection of a Fighting Falcon using Routing Algorithms 

    Lois, A.; Bertos, N.; Ziliaskopoylos, A. (2011)
    The process of checking inspection points on combat aircraft after a mission, is critical for their operational readiness. Manufacturers include specific inspection procedures in their maintenance handbooks. These procedures ...
  • Photon dose kernels dataset for nuclear medicine dosimetry, using the GATE Monte Carlo toolkit 

    Papadimitroulas, P.; Loudos, G.; Georgoulias, P.; Kagadis, G. C. (2012)
    Photon dose point kernels (DPKs) were generated using the GATE toolkit for different media and for radionuclides of interest in nuclear medicine. In the present work the primary photon contribution of different isotopes ...
  • Projection based clustering of gene expression data 

    Tasoulis, S. K.; Plagianakos, V. P.; Tasoulis, D. K. (2010)
    The microarray DNA technologies have given researchers the ability to examine, discover and monitor thousands of genes in a single experiment. Nonetheless, the tremendous amount of data that can be obtained from microarray ...
  • Sensitivity issues concerning inverse heat transfer analysis of welds 

    Lambrakos, S. G.; Jones, H. N.; Zervaki, A. D.; Haidemenopoulos, G. N. (2009)
    The construction of a general parameterization for inverse analysis of welding processes using incomplete or minimal experimental data, although demonstrated in principle, has yet to be firmly established. The structure ...
  • Simulating complex window systems using BSDF data 

    Konstantoglou, M.; Jonsson, J. C.; Lee, E. (2009)
    Nowadays, virtual models are commonly used to evaluate the performance of conventional window systems. Complex fenestration systems can be difficult to simulate accurately not only because of their geometry but also because ...
  • Unifying the integration, analysis and interpretation of multi-omic datasets: Exploration of the disease networks of Obstructive Nephropathy in children 

    Moulos, P.; Valavanis, I.; Klein, J.; Maglogiannis, I.; Schanstra, J.; Chatziioannou, A. (2011)
    The wealth of data amassed by the utilization of various high-throughput techniques, in various layers of molecular dissection, stresses the critical role of the unification of the computational methodologies applied in ...