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Упит dcterms_subject_txt:Applied Mathematics

122 items

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... of Oscillation of the Rock Mass in Blasting. Ph.D. Thesis, Faculty of Mining and Geology, Belgrade, Serbia, 2010; pp. 35–38. 9. Simeunović, D. Mathematics; Faculty of Mining and Geology, Mining Department: Belgrade, Serbia, 1985; pp. 101–103. 10. Lutovac, S.; Trajković, S.; Katona, O.; Savić, L.; ...
    ... of Engineers and Technicians; NIS Naftagas: Novi Sad, Serbia, 2005; pp. 54–60. 12. Kudryavtsev, V.A.; Demidovich, B.P. A Brief Course of Higher Mathematics; MIR Publishers: Moscow, Russia, 1984; pp. 293–295. 13. Lutovac, S.; Medenica, D.; Gluščević, B.; Tokalić, R.; Beljić, Č. Some models for ...
    ... parameters point to the intensity of the force which caused them, as well as to the degree of danger caused by the shock. The parameter that is most often applied to estimate seismic effect of the blasting is the oscillation velocity of the rock mass. It is considered Minerals 2018, 8, 70; doi:10.3390/min8020070 ...

  • Bilingual lexical extraction based on word alignment for improving corpus search

    Jelena Andonovski, Branislava Šandrih, Olivera Kitanović (2019)
    Library and Information Sciences,Computer Science Applications

  • Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima

    Aleksandar M. Mijatović, Jovana Bogojeski (2017)
    Kompleksi Pd(II), supstitucione reakcije

  • Towards translation of educational resources using GIZA++

    Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević (2016)
    ... ,. ISBN (13) 978-1-4438-3878-8, 2012. [21] A. Obuljen, Kvantitativna metoda za poravnanje dvojezičnog korpusa. Internal report, Faculty of Mathematics, University of Belgrade, Serbia, 2009. View publication statsView publication stats https://www.class-central.com/ http://tramooc.eu/ ht ...
    ... advanced bootstrapping of new resources is performed, while at the same time innovative multi-modal automatic and human evaluation schemata are applied. For human evaluation, an innovative, strict-access control, time- and cost-efficient crowdsourcing set-up is used, while translation experts, ...
    ... texts related to education, finance, health and law, aligned at the sentence level within Intera project. The corpus was lemmatized and the method applied on lemmas of word forms from the corpus, by extracting candidate translational equivalents through a ranking based on lemma frequencies. Similar ...

  • Хазард од клизишта у Србији у 21. веку

    Biljana Abolmasov (2019)
    клизишта, хазард од клизишта, промене климе
    ... SERBIA IN THE 21 CENTURY � KNOWLEDGE IS THE BEST BASTION AGAINST THE NATURAL DISASTERS Accepted at the 4 � meeting of the Department of Mathematics, Physics and Geosciences on 24 May 2019 E d i t o r VLADICA CVETKOVI� Corresponding Member of SASA B E L G R A D E 2 0 1 9 ������ ����� ...
    ... Research 49: 73�86, doi: 10.3354/cr01008. [29] Rajkovi� B., Vujadinovi� M. and Vukovi� A. (2013). Report on rev change scenarios including review on applied statistical method f systematic model errors, with maps of temperature, precipitation and r indices changes; Second national communication of the ...
    ... Research 49: 73 86, doi: 10.3354/cr01008. [29] Rajkovi B., Vujadinovi M. and Vukovi A. (2013). Report on rev change scenarios including review on applied statistical method systematic model errors, with maps of temperature, precipitation anc indices changes; Second national communication of the Republic ...

  • An Approach to Efficient Processing of Multi-Word Units

    Cvetana Krstev, Ivan Obradović, Ranka Stanković, Duško Vitas (2013)
    Efficient processing of Multi-Word Units in the course of development of morphological MWU dictionaries is not easy to achieve, especially when languages with complex morphological structures are concerned, such as Serbian. Manual development of this type of dictionaries is a tedious and extremely slow process. To alleviate this problem we turned to our multipurpose software tool, dubbed LeXimir, in the production of lemmas for e-dictionaries of multi-word units. In addition to that, we developed a procedure aimed at making ...
    Natural Language Processing, Grammatical Category, Lexical Representation, MWU, multi-word unit
    ... components with applied dictionaries of simple words. Orthographic conditions check separators used between words (a space is presumed by default) and capi- talization of components — due to the condition Cond="$PRE" in the first set of special conditions in Example 1 this rule is applied only if the ...
    ... conditions is applied if the second component is a collective noun or a verbal noun (SinSem="+VN,+Coll,+HumColl"). In general, conditions can be negated by using two different operators: ! and ˜. The simplest is the condition !SDIC, which means that a MWU component does not exist in applied dictionaries ...
    ... the MWU lemma being generated. That is, instead of obtaining values from applied dictionaries of simple words, they allow rules to set these values themselves. They are thus used for components that do not ex- ist in applied dictionaries (“unknown words”). In Example 5 the first component does not ...

  • Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems

    Dejan Ćebić, Nebojša M. Ralević (2021)
    нелинеарне једначине, поступци засновани на срединама, вишеструки корени,

  • Keyword-Based Search on Bilingual Digital Libraries

    Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović (2017)
    This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...

  • Knowledge and Rule-Based Diacritic Restoration in Serbian

    Cvetana Krstev, Ranka Stanković, Duško Vitas (2018)
    In this paper we present a procedure for the restoration of diacritics in Serbian texts written using the degraded Latin alphabet. The procedure relies on the comprehensive lexical resources for Serbian: the morphological electronic dictionaries, the Corpus of Contemporary Serbian and local grammars. Dictionaries are used to identify possible candidates for the restoration, while the dataobtainedfromSrpKorandlocalgrammarsassistsinmakingadecisionbetween several candidates in cases of ambiguity. The evaluation results reveal that,dependingonthetext,accuracyrangesfrom95.03%to99.36%,whilethe precision (average 98.93%) is always higher than the recall (average 94.94%).
    diacritic restoration, morphological dictionary, corpus, word n-grams, local grammars
    ... three larger thesauri: RuThes, OENT ontology, and the Security Thesaurus; • Ontology on Natural Sciences and Technologies (OENT) includes terms of mathematics, physics, chemistry, geology, astronomy etc., terms of technological domains (oil and gas, power stations, cosmic technologies, aircrafts, etc ...
    ... should be created from scratch or with the use of existing similar categorial systems. In such conditions, machine-learning approaches cannot be applied, and knowledge-based methods of text categorization, i.e. exploiting manual rules for describing categories, are more acceptable. When one creates ...
    ... (2015). The sociopolitical thesaurus as a resource for automatic document processing in russian. Terminology. International Journal of Theoretical and Applied Issues in Specialized Communication, 21(2):237–262. Loukachevitch, N., Dobrov, B., and Chetviorkin, I. (2014). Ruthes-lite, a publicly available version ...

  • The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines

    Krstev Cvetana, Stanković Ranka, Vitas Duško, Obradović Ivan (2008)
    In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and wordnets. These dictionaries enable semantic ...
    LR web services, MultiWord Expressions & Collocations, Information Extraction, Information Retrieval
    ... Ivan Obradović4 1 professor, Faculty of Philology, Belgrade, 2 assistant, Faculty of Mining and Geology, Belgrade 3 professor, Faculty of Mathematics, Belgrade, 4 professor, Faculty of Mining and Geology, Belgrade E-mail: cvetana@matf.bg.ac.yu, ranka@rgf.bg.ac.yu, vitas@matf.bg.ac.yu, ivano@rgf ...
    ... will have the same syntactic structure as a compound, and that the inflectional transducers for compounds that we have already developed can be applied to inflect them correctly. Our further presumption is that in many cases this structure can be predicted on the basis of morphological and syntactic ...

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... analysis method on fuzzy AHP. European J Oper Res 95 (3), 649–655. Dubois, D., Esteva, F., Godo, L., Prade, H., 2007. From classical mathematics to fuzzy mathematics: Emergence of a new paradigm for theoretical science. In: Handbook of the history of logic, Vol. 8, (2008), Elsevier, Oxford. Forman ...
    ... environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the ...
    ... will contribute to meeting the 3E policy goals (energy, environment, economy). The new fuzzy integrated Delphi-FAHP-PROMETHEE method- ology has been applied (Seddiki and Bennadji, 2019) with the objective to select the best renewable energy alternatives in a residential building in Algeria. Wang et al ...

  • Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković (2019)
    Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...
    višekriterijumske metode, površinski kop uglja, pomoćna mehanizacija, hidraulični bager
    ... Science, 55, pp. 308–317, DOI:10.1016/j.procs.2015.07.054, 2015. [17] Tsaur R. C, Decision risk analysis for an interval TO- PSIS method. Applied Mathematics and Compu- tation 218(8), pp. 4295-4304, doi:10.1016/j.amc.- 2011.10.001, 2011. [18] Hudej M-M. Multivarijabilni modeli upravljanja u rudarstvu ...
    ... VIŠEKRITERIJUMSKIH METODA... TEHNIKA – RUDARSTVO, GEOLOGIJA I METALURGIJA 70 (2019) 3 377 data in mineral prospectivity mapping, Journal od Applied Geophysics, 87, pp. 9-18, 2012. [13] Saaty L T, Decision Making: The Analytical Hiera- rchy Process. New York, USA: Mc-Graw-Hill, 1980. [14] Russo ...

  • Uticaj geološke neizvesnosti u razvoju rudarskih projekata

    Petar Marković, Dejan Stevanović, Mirjana Banković (2023)
    Rudarstvo je industrija koja se nosi sa različitim vrstama neizvesnosti i rizika zbog svoje prirode i specifičnosti. Neizvesnost u rudarstvu može poticati iz različitih izvora i uticati na različite aspekte rudarskih projekata. Kao jedan od dominantnih faktora, ističe se geološka neizvesnost. Geološka neizvesnost igra ključnu ulogu u rudarstvu i može značajno uticati na procenu resursa i rezervi, planiranje eksploatacije, ekonomsku isplativost i upravljanje rizicima. Ova neizvesnost se ne može eliminisati, ali se uz primenu adekvatnih standarda i zakona može ...
    ... open-pit mining problem under ore-grade uncertainty. Electronic Notes in Discrete Mathematics , 31, 15-20. [10] Goodfellow R., Dimitrakopoulos R. (2016). Global optimization of open pit mining complexes with uncertainty. Applied Soft Computing , 40, 292-304. [11] Kolonja B., Stevanović D., Pešić-Georgiadis ...
    ... For Mineral Resources and Mineral Reserves. Canadian Institute of Mining, Metallurgy and Petroleum. [5] Dimitrakopoulos R. (2018). Advances in Applied Strategic Mine Planning. Springer International Publishing. [6] Dimitrakopoulos, R., Farrelly, C. T., and Cheuiche Godoy, M. (2002). Moving forward ...

  • Automatic construction of a morphological dictionary of multi-word units

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić (2010)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multiwordn units, noun phrases, query expansion
    ... (additional toponyms) N A CN T 1. Items 2571 207 784 206 2. Rules applied 85 19 56 33 3. Rules not applied 201 5 230 253 4. Applications of rules 4083 434 1060 769 5. Most frequently used rule nc axn ac 2x2 nc axn nc axn3 (number of times applied) 1499 108 589 144 6. Absolutely successful rules 26 9 19 1 7 ...
    ... performed the analysis and evaluation of our strategy in two steps. In the first step we applied the strategy to the same data that we used to produce it, that is our initial DELAC dictionary. In the second step, we applied it to several lists of MWUs that we have collected from various sources. After applying ...
    ... 90% 0.20% 1.10% 0.00% Total 73.42% 14.72% 11.87% 100.00% 77.07% 20.00% 2.93% 100.00% In the second step we applied our strategy for nouns to several different lists of MWUs. We have not applied our strategy for adjectives in this step Automatic Construction of a Morphological Dictionary of MWUs 9 ...

  • A bilingual digital library for academic and entrepreneurial knowledge management

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić (2015)
    A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...
    Knowledge management, Digital library, Multilingualism, Language Resources, Terminology
    ... Libraries: A Pragmatic Approach.Chinese Librarianship, (19). Authors’ Biographical Notes Dr. Ranka Stanković is Assistant Professor of Mathematics and Informatics at Faculty of Mining and Geology at University of Belgrade. Her scientific field is Human Language Technologies (HLT). She is ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... Kim, 2010; Frantzi et al., 2000). An analysis of terms from technical dictionaries for different domains (fiber optics, medicine, physics and mathematics, psy- chology) showed that 97% of multi-words in these sources consist of nouns and adjectives only, and more than 99% consist only of nouns, ...
    ... rich morphology, this is a complex task, and cor- responding language resources in the form of morphological e-dictionaries and grammars need to be applied (Vitas et al., 2012). For that reason, in the case of Serbian, it is not enough to extract terminology from the domain, but it also has to be adequately ...
    ... Unitex1 corpus processing platform, as well as the use of TMF standard for the representation of terms is proposed in (Ammar et al., 2015) and applied on Arabic scientific and technical corpus. In (Savary et al., 2012) terminology extraction in the domain of ecsonomy is presented for Polish. It ...

  • Resource-based WordNet Augmentation and Enrichment

    Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev (2018)
    In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...
    WordNet, bilingual resources, term alignment, parallel lists
    ... Microsoft products, and comprises 13,147 aligned terms for Serbian. Additional bilingual lexicons from domains of ecology, psychology, sport and mathematics were compiled from various on-line resources and textbooks and used for generating lists of translational equivalents. Finally, we compiled a list ...
    ... and evaluation of SerWN synsets, the procedure includes obligatory post-editing of automatically prepared datasets. In our first case-study we applied our approach to 1248 synsets, and found out that expert had that 56.6% of literals in produced Serbian synset were literals offered by the system ...

  • Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    kvalitet podzemnih voda, arsen, analiza rizika, Panonski Basen
    ... DEVELOPMENT (PSSTD). Water Supply and Water Protection Strategy for the Autonomous Province of Vojvodina. University of Novi Sad, Faculty of Science and Mathematics, 2009 [In Serbian]. http://www.eko.vojvodina.gov.rs/files/file/dokumenti/ sajt%20strategija%20vodosnab devanja%20i%20zastite% 20voda%20apv.pdf ...
    ... high concentration of arsenic, which in some cases exceeds several times the maximum allowable concentration. A health risk assessment model was applied to calculate cumulative exposure to As as well as toxic and carcinogenic risks resulting from drinking raw groundwater contaminated by As in the South ...

  • Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    ... DEVELOPMENT (PSSTD). Water Supply and Water Protection Strategy for the Autonomous Province of Vojvodina. University of Novi Sad, Faculty of Science and Mathematics, 2009 [In Serbian]. http://www.eko.vojvodina.gov.rs/files/file/dokumenti/ sajt%20strategija%20vodosnab devanja%20i%20zastite% 20voda%20apv.pdf ...
    ... high concentration of arsenic, which in some cases exceeds several times the maximum allowable concentration. A health risk assessment model was applied to calculate cumulative exposure to As as well as toxic and carcinogenic risks resulting from drinking raw groundwater contaminated by As in the South ...

  • Vebran Web Services for Corpus Query Expansion

    Ranka Stanković, Miloš Utvić (2020)
    U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.
    corpus search, web service, Serbian lexical resources, query expansion
    ... . ”, pp. 99–118 3.3 Terminological resources Termi9 application supports the development of terminological dictionar- ies in various fields (mathematics, agronomy, mining), as well as the process- ing and presentation of terms in Serbian and English. Termi has been recently supplemented by the general ...
    ... query expansion in case of multi-word units (MWUs) described in (Утвић et al., 2019) have recently been resolved. Different so- lutions need to be applied for a case where all components of an MWU are the same as their lemmas, e.g. leksički resurs (“lexical resource”) and for 112 Infotheca Vol. 19, ...
    ... out-of dictionary MWUs (Table 2): 1) If an MWU given by a user is found in SMD, its inflectional code is analysed and appropriate transformation applied. For instance, the inflec- tional code AXN associated with the MWU leksički resurs means that MWU contains three components, an adjective (A) that ...