This paper presents a large-scale Greek morphological lexicon, developed at the Software & Knowledge Engineering Laboratory (SKEL) of NCSR “Demokritos”. The paper describes the lexicon architecture and the procedure to develop and update it. The morphological lexicon was used to develop a lemmatiser and a morphological analyser that were exploited in various natural language processing applicat...

Direct volume rendering is a common means of visualizing three-dimensional data nowadays. It is, however, still a very time consuming process to create informative and visual appealing images. Semi-automatic volume analysis procedures as morphological operators are a promising approach to improve the overall visualization cycle. However, these operators need quite some time for computation, red...

Elongated objects are more difficult to filter than more isotropic ones because they locally comprise fewer pixels. For thin linear objects, this problem is compounded because there is only a restricted set of directions that can be used for filtering, and finding this local direction is not a simple problem. In addition, disconnections can easily appear due to noise. In this paper we tackle bo...

This paper describes an approach how to integrate the decomposition of non-lexicalized word compounds and derivations into the morphological analyzers of a NLP product line. The component employs word formation rules and filtering techniques to decompose words, which are not contained in the underlying dictionary database, thereby increasing the average word recognition rate of the morphologica...

This paper describes an approach how to integrate the decomposition of non-lexicalized word compounds and derivations into the morphological analyzers of a company's NLP product line. The component employs word formation rules and filtering techniques to decompose words, which are not contained in the underlying dictionary database, thereby increasing the average word recognition rate of the mo...

The relative roles of historical processes, environmental filtering, and ecological interactions in the organization of species assemblages vary depending on the spatial scale. We evaluated the phylogenetic and morphological relationships between species and individuals (i.e., inter- and intraspecific variability) of Neotropical nonvolant small mammals coexisting in grassland-forest ecotones, i...

The technology of airborne Light Detection And Ranging (LIDAR) is capable of acquiring dense and accurate 3D geospatial data. Although many related efforts have been made by a lot of researchers in the last few years, LIDAR data filtering is still a challenging task, especially for area with high relief or hybrid geographic features. In order to address the bare-ground extraction from LIDAR poi...