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Упит dcterms_subject_txt:Applied Mathematics

122 items

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... cvetana@matf.bg.ac.rs Ranka Stanković Faculty of Mining and Geology University of Belgrade ranka@rgf.bg.ac.rs Duško Vitas Faculty of Mathematics University of Belgrade vitas@matf.bg.ac.rs Svetla Koeva Dep. of Computational Linguistics Institute for Bulgarian svetla@dcl.bas ...
    ... tool WS4LR (shortened for WorkStation for Language Resources) is being developed by the Language Technology Group organized at the Faculty of Mathematics for several years now. Its first version was introduced in 2004 [8] and it dealt mainly with harmonizing various heterogeneous lexical resources ...
    ... been implemented. In fact, they are very similar to those presented in the previous section. The only difference is that expanded queries are not applied to an aligned text but are rather forwarded to the search engine. Figure 10 shows such an retrieval that starts with the Serbian keyword barka ...

  • A Model for Determining the Dependability of Continuous Subsystems in Coal Mines Using the Fuzzy Logic Approach

    Nikola Stanić, Miljan Gomilanović, Petar Marković, Daniel Krzanović, Aleksandar Doderović, Saša Stepanović (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    fuzzy logic, max-min composition, continuous part of combined system (CCS), open pit, mining, dependability

  • An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction

    Dejan Ćebić, Nebojša Ralević, Marina Marčeta (2020)
    нелинеарна једначина, 16.ред конвергенције, оптималне методе, подељене разлике

  • CEEPUS network CIII-RS-0038: More than two decades of supporting current educational and scientific trends in geosciences

    Kristina Šarić, Ana Fociro, Michael Wagreich, Hugo Ortner, Christoph von Hagke, Hans-Jürgen Gawlick, Eva Gerlšová, Elvir Babajić, Darko Tibljaš, Sibila Borojević Šoštarić, Miklos Kazmer, Jolanta Burda, Ela Machaniec, Adriana Trojanowska Olichwer, Ágnes Gál, Paul Tibuleac, Luka Gale, Ondej Nemec, Igor Duriška, Volker Höck, Corina Ionescu (2023)
    studentska i nastavnička mobilnost, Alpsko-karpatsko-balkansko-dinaridski geološki prostor, fundamentalna i primenjena geologija

  • The Nooj System as Module within an Integrated Language Processing Environment

    Ranka Stanković, Duško Vitas, Cvetana Krstev (2008)
    NooJ, electronic dictionary, lexical resources
    ... environment named WS4LR (WorkStation for Lexical Resources) has been developed within the Human Language Technology Group (HLT) at the Faculty of Mathematics, University of Belgrade, and is aimed at manipulating heterogeneous lexical resources developed in the course of many years and within different ...
    ... FST graph describing the inflectional properties of the selected lemma can be inspected and corrected if found inadequate. The FST can also be applied to a lemma, and the user can inspect the prodused forms in order to see whether the chosen FST is appropriate to the lemma. Figure 2. Retrieval ...
    ... power of integrated language resources tools such as WS4LR has been illustrated by its different function. It has also been shown how WS4LR can be applied to query expansion. Without such a tool the results of a query specified by a user in the search of a specific concept would be reduced to only ...

  • Frequency and Length of Syllables in Serbian

    Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová (2019)
    Basic analyses of several properties of syllables (the rank-frequency distribution, the distribution of length, and the relation between length and frequency) in Serbian is presented. The syllabification algorithm used combines the maximum onset principle and the sonority hierarchy. Results indicate that syllables behave similarly to words as far as mathematical models are concerned, but values of parameters in models for syllables are quite different from those for words.
    frekvencije slogova, dužina slogova, srpski jezik
    ... Beograd, Serbia e-mail: ivan.obradovic@ rgf.bg.ac.rs 6 Department of Applied Mathematics and Statistics, Comenius University, Mlynská dolina, 84248 Bratislava, Slovakia e-mail: jmacutek@yahoo.com 7 Department of Applied Mathematics and Statistics, Comenius University, Mlynská dolina, 84248 Bratislava ...
    ... as far as a systematic quantitative approach to syllables in Slavic languages is concerned. The syllabification algorithm used here can be easily applied to all of them (and also to many other languages). Our data support the hypothesis suggested by Strauss et al. (2008), according to which syllables ...
    ... Linguistics 20, 241-251. Koščová, M., Mačutek, J., Kelih, E. (2016). A data-based classification of Slavic languages: Indices of qualitative variation applied to grapheme frequencies. Journal of Quantitative Linguistics 23, 177-190. Köhler, R. (2005). Properties of lexical units and systems. In: Köhler ...

  • A hundred years of Milutin Milanković's climate change theory - geological implications

    Dejan Radivojević (2020)
    Миланковићева теорија циклуса објављена пре сто година је најважнија теорија у наукама које проучавају климу и имала је велики утицај на дисциплине које се баве Земљом. Ипак, његов рад је чекао више од педесет година да би добио потврду. Може се рећи да Миланковићев рад највећи утицај на геологију има у изради астрономске временске скале, подршци хипотези континенталног дрифта и палеоклиматологији. Добри резултати примене астрономске временске скале на неогене седименте иницирали су примену ове методе у мезозојским и у последње ...
    циклостратиграфија, астономска временска скала, геолошка временска скала, климатске промене, континентални дрифт
    ... of the most important scientific the- ories in the climate science. The influence of his work is not just related to climatology but also to applied mathematics, physics, astronomy, and geo - logy. At first, geologists have not recognized how im- portant Milanković’s work will be for their future research ...
    ... as well-paid innovator. In 1909 he received an offer from the University of Belgrade to work as an Associate Professor at the Department of Applied Mathematics. He moved to Kingdom of Serbia in 1910 and became its citizen, even though his salary was ten times lower than in vienna. To gain additional ...
    ... sediments, and erosion. The astronomical tuning method enhances tradi- tional geological dating methods and over the last decade has been successfully applied to a continuous high-resolution geological ti - me scale (GTS) corre lation (SCHWARzACHER, 1993; SHACKLE- ToN et al., 1999). on the GTS 2012 (GRADSTEIN ...

  • Building learning capacity by blending different sources of knowledge

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić (2016)
    ... learning continuum, blended learning, technology enhanced learning, life- long learning Biographical notes: Ivan Obradović is a professor of mathematics and informatics at the University of Belgrade Faculty of Mining and Geology and director of the University of Belgrade Center for e-learning ...
    ... to informatics and geoinformatics. She received her Master’s degree in 2000 and Ph.D. 2009 at the Department for Computer science, Faculty of Mathematics University of Belgrade. She is interested in semantic web, information systems, database modelling, geoinformation management and artificial ...
    ... Author elements, and it is widely used in educational context and applied in several learning object repositories (Friesen, 2004). Recognizing the specific needs of educational resources, the Education Working Group ...

  • Some models for determination of parameters of the soil oscillation law during blasting operations

    Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić (2018)
    ... 37–38, 48–55. 8. Kudryavtsev, V.A.; Demidovich, B.P. A Brief Course of Higher Mathematics, 2nd ed.; Mir Publishers: Moscow, Russia, 1984; pp. 293–295. 9. Petrović, Ž. Business Statistics, Megatrend; University of Applied Sciences: Belgrade, Serbia; Faculty for Management: Zaječar, Serbia, 2004; p ...
    ... M. Derivation the soil oscillation law and determination of its parameters. Min. Metall. Eng. Bor 2014, 3, 41–51. [CrossRef] 5. Simeunović, D. Mathematics; Faculty of Mining and Geology, Mining Department: Belgrade, Serbia, 1985; pp. 101–103. 6. Lutovac, S.; Trajković, S.; Katona, O.; Savić, L.J ...
    ... the Sadovskii equation. To determine the parameters in the Sadovskii formula, in addition to the usual least square method, two more new models were applied. In the models the parameters K and n were determined by applying the quotient of the relative growth of oscillation velocities and reduced distances ...

  • Numerical modeling of Selanac debris flow propagation using SPH code

    Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi (2021)
    The Selanac debris flow is a very huge event triggered after extreme rainfall caused by Cyclone Tamara activity in the Republic of Serbia in May 2014. The Selanac case study was already modelling in different programs using Voellmy rheology assumptions like RAMMS software. In this paper research are focusing particularly on the process of debris flowing from initiation zone to main deposition area using Geoflow SPH two-phase model considering frictional rheology law. Main rheological parameters are back-calculated using also ...
    debris flow, modelling, SPH code, DEM
    ... Belgrade, Faculty of Mining and Geology, Belgrade, Serbia Manuel Pastor & Saeid M. Tayyebi UPM, ETS Ingenieros de Caminos, Department of Applied Mathematics, Madrid, Spain jelka.krusic @rgf.bg.ac.rs Abstract The Selanac debris flow is a very huge event triggered after extreme rainfall ...
    ... geometry and main parts 3 METHOD SPH (Smoothed Particle Hydrodynamics) was firstly proposed by Lucy (1977) and Gingold and Monaghan (1977) and applied in astrophysical modeling. In time, it became widely used in different fields (Liu and Liu 2010; Chen et al. 1996; Huang et al. 2015). The function ...

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... WebGIS application were complex and multidisciplinary, involving a team of experts from the geological, mining, economic, ecologic, informatics, mathematics and other domains. Special attention was given to securing a high level and quality of project work, both regarding the quality of content, namely ...
    ... WebGIS application were complex and multidisciplinary, involving a team of experts from the geological, mining, economic, ecologic, informatics, mathematics and Energies 2016, 9, 567 13 of 14 other domains. Special attention was given to securing a high level and quality of project work, both regarding ...
    ... of evaluators. The goal is at the top of the hierarchy, while the criteria, sub-criteria and alternatives are at lower levels. AHP has so far been applied in a variety of areas where decisions are of great importance and where decision makers readily choose a qualified and reliable advisor while pondering ...

  • An Italian-Serbian Sentence Aligned Parallel Literary Corpus

    Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić (2023)
    This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...
    Aligned corpus, parallel corpus, Serbian, Italian, literature

  • A Description of Morphological Features of Serbian: a Revision using Feature System Declaration

    Cvetana Krstev, Ranka Stanković, Vitas Duško (2010)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    Morphology, Lexicon, lexical database, Standards for LRs
    ... Duško Vitas 3 1 professor, Faculty of Philology, Belgrade, 2 assistant professor, Faculty of Mining and Geology, Belgrade 3 professor, Faculty of Mathematics, Belgrade E-mail: cvetana@matf.bg.ac.rs, ranka@rgf.bg.ac.rs, vitas@matf.bg.ac.rs Abstract In this paper we discuss some well-known morphological ...
    ... pp.373-376. Paumier, S. (2008). Unitex 2.1 User Manual, http://www-igm.univ-mlv.fr/~unitex/UnitexManual2.1 .pdf. Popović, Z. (2009) Taggers Applied On Texts On Serbian Language, Language Tools And Machine Learning. In Infotheca, Vol. X, No. 2, (to appear). Przepiórkowski, A. and Woliński, M ...

  • GIS Application Improvement with Multilingual Lexical and Terminological Resources

    Ranka Stanković, Ivan Obradović, Olivera Kitanović (2010)
    ... „Improvement of geodatabase queries within GeolISS“, Review of the national center for digitization 12/2008, University of Belgrade, Faculty od Mathematics, pp.65-74. Courtois, Blandine; Max Silberztein (eds.) (1990). Dictionnaires électroniques du français. Langue française 87. Paris: Larousse ...

  • Terminological and lexical resources used to provide open multilingual educational resources

    Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić (2016)
    Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX ...
    otvoreni obrazovni resursi, leksički resursi, obrada prirodnih jezika, terminologija
    ... involves linguistics, more precisely, lexicography, cognitive and communication sciences, but also disciplines from different areas, e.g. mining or mathematics. Definition of terminology varies from one dictionary to another. Macmillan Dictionary defines it as “the words and phrases used in a particular ...
    ... feedback for learners through ITS, with further enhancements with the development of spoken language technologies. One of the major examples of applied NLP in e-learning are the open-access MOOC 1 platforms which are changing the face of distant learning and education altogether by erasing ge ...
    ... GeolISSTerm). It was recognized 14 most productive patterns that represent structure of MWU terms. They are represented in form of transducers applied on domain corpus to extract terminology. Examples of patterns are presented in [15]. After applying these transducers on domain text extracted potential ...

  • Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje

    Marko Lazić, Filip Miletić, Milena Lekić, Veljko Rupar, Željko Petrović, Lazar Žujović (2021)
    U radu su analizirani eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje. Period analize je prvih šest meseci tekuće godine. Analiza je vršena sa aspekta ostvarene proizvodnje, kvaliteta uglja, efektivnog vremena rada, kapacitetnog i vremenskog iskoršćenja i zastoja sistema. Za poređenje podataka različitih parametara koji po svojoj prirodi nisu međusobno uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja.
    proizvodnja uglja, zastoji, metode višekriterijumskog odlučivanja
    ... Applications, 38(3), 2550-2556;Systems with Applications, 121, 393-417; [9] Tsaur R–C.,,Decision risk analysis for an interval TOPSIS method” Applied Mathematics and Computation 218(8), pp. 4295–4304, 2011. doi:10.1016/j.amc.2011.10.001; [10] Krohling, R.A., & Pacheco, A.G.C. (2015). A-TOPSIS - An Approach ...

  • Electronic Dictionaries - from File System to lemon Based Lexical Database

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić (2018)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    ... missing markers and production of new entries. Here we will present, in more detail, two ap- proaches that have been applied to actually connect lexical entries; first, the approach applied to produce and connect derived entries, and then the approach to connect lexical variants. Establishing derivation ...
    ... the marker +DOM=Math the attribute +DOM indicates that a lemma is related to a certain do- main, whereas the value specifies this domain to be mathematics (e.g. diedar,N3+DOM=Math). Val- ues assigned to a certain attribute can belong to a closed set (e.g. +CC2=RS is a two character coun- try code ...
    ... terminology under the TBX standard. In 35th Anniversary of Computational Linguis- tics in Serbia, pages 12–26. University of Belgrade, Fac- ulty of Mathematics. Stanojčić, Ž. and Popović, L. (2008). Gramatika srpskog jezika. Zavod za udžbenike. Tutin, A. and Véronis, J. (1998). Electronic dictionary ...

  • Development of terminological resources for expert knowledge: a case study in mining

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić (2015)

  • Actual contamination of the Danube and Sava rivers at Belgrade (2013)

    Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)
    rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening
    ... University of Nova Gorica, Slovenia, 6Faculty of Science, University of Novi Sad, Serbia, 7Faculty of Science and Mathematics, University of Niš, Serbia, 8Faculty of Science and Mathematics, University of Kragujevac, Serbia and 9Institute of Geology and Geochemistry of Petroleum and Coal, RWTH Aachen ...
    ... toxic effect on this kind of bacteria. Non-target screening analyses of river water Non-target screening analyses based on GC/MS techniques were applied to all five water samples. The overall aim of this part of investigation was to iden- tify specific organic contaminants in the two rivers and to ...
    ... Both compounds were detected in all of the samples. Quantitative target screening analyses of river water Quantitative target analyses were applied to all water samples on the pre- selected substance classes of hormones and neonicotinoids. The HPLC measure- ments revealed no occurrence of the selected ...

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... WebGIS application were complex and multidisciplinary, involving a team of experts form the geological, mining, economic, ecologic, informatics, mathematics and other domains. Special attention was given to securing a high level and quality of project work, both regarding the quality of content, namely ...
    ... abandoned mines in national parks and other protected areas. Given that systematized and structured data on the number, geolocation, status, state and applied measures of remediation and recultivation of such abandoned facilities did not exist, the need arose for developing an appropriate inventory of ...