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2655 items
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Terminological and lexical resources used to provide open multilingual educational resources
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 ...... and the other consists of NLP tools for analysis and use of language by machines [1]. The usage and application of the research done in the field of the NLP has been present in the domain of education from the 1960s. One of the first advances made in this direction was the pioneering work of Ellis ...
... sciences. There is widespread theory of four basic periods in development of terminology, the origins, the structuring of the field, the boom and the expansion [4]. Those stages are closely related with the development of computers. Consequently, we have different stages of computer usage, from input terminals ...
... 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 geographical and spatial constraints, leaving the traditional ...Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić. "Terminological and lexical resources used to provide open multilingual educational resources" in The Seventh International Conference on eLearning (eLearning-2016), 29-30 September 2016, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2016)
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Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy
... and orientation of the pores, it is evident that the pot was manufactured by the application of a mould. SEM-EDS analysis was performed on the inner parts of the walls of the investigated samples and their surface area. When samples are compared slight difference can be observed. Larger, ...
... higher amount of calcite grains. EDS analysis gives clear differences in the chemistry of the samples. Sample 1 has a higher content of most investigated elements when compared to sample 2, except K and Ca. Amount of K and Ca elements could indicate the presence of a higher amount of illite minerals ...
... especially in the terms of elemental composition observed by EDS, to the distribution and appearance of pores concerning the manufacturing process. Further investigations are necessity for an establishment of the standards that will guarantee and protect the originality together with the cultural ...Milošević Maja, Zdravković Alena, Đordjević Biljana, Jelić Ivana. "Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy" in 8th Mineral Sciences in the Carpathians Conference, Acta Mineralogica-Petrographica, Miskolc, Hungary, Department of Mineralogy, Geochemistry and Petrology, University of Szeged, Szeged, Hungary (2021)
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Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia
Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević. "Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia" in Marine and Petroleum Geology, Elsevier BV (2020). https://doi.org/10.1016/j.marpetgeo.2020.104252
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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... level. The same was the case for the contents of Cr and Ni in the sediments of the Danube River at the loc- ation Batajnica, where the data were below the target values indicating low or no risk. At all other locations, the content of Cr did not exceed the intervention value but were above the target ...
... toxic effects in the environment of highly industrialized and urbanized areas. The determination of total content of heavy metals in sediments is particularly useful to collect infor- mation on the genesis of the soil and on the level of contamination. The trace metal levels in the examined sediments ...
... constituents of the organic matrix.16 The Sava River represents the largest tributary of the River Danube. It is 945 km long and it flows through Slovenia, Croatia, Bosnia and Herzegovina and Serbia. The Sava River Basin covers a catchment area of 95 719 km2, which is approximately 40 % of the countries’ ...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. "Actual contamination of the Danube and Sava rivers at Belgrade (2013)" in Journal of the Serbian Chemical Society, National Library of Serbia (2014). https://doi.org/10.2298/JSC131105014A
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Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica
Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and TechnologyNatalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel. "Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica" in International Soil and Water Conservation Research, Elsevier BV (2019). https://doi.org/10.1016/j.iswcr.2018.12.004
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Combining Heterogeneous Lexical Resources
... Faculty of Mathematics, Belgrade, gordana@matf.bg.ac.yu Abstract One of the main tasks of the Natural Language Processing Group at the Faculty of Mathematics, University of Belgrade is the development of various lexical resources. Among them the two most important ones are: the system of morphological ...
... noun in the dictionary. Conversely, the information in the second line links the noun to the adjective. Moreover, the morphosyntactic information, preceded by a plus sign, can describe the type of derivational relation between two entries. In the example (2), the adjective devojcyin is the possessive ...
... from its passive past participle povezan. The type of derivational link is marked by the plus sign—the progressive verb by the +Imperf mark and the passive past participle by the +PP mark. Similarly, the progressive verb povezivati in the second line of the example (5) is linked to its corresponding ...Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić. "Combining Heterogeneous Lexical Resources" in Proceedings of the Fourth Interantional Conference on Language Resources and Evaluation, Lisabon, Portugal , May 2004, vol. 4, ELRA - European Language Resources Association (2004)
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Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization in Sorption of the Herbicides
... S-metolachlor by montmorillonite depends on the size of the interlayer space, the type of interchangeable cation, and also on the characteristics of the montmorillonite surface. Disclosure of Interest: None Declared Keywords: adsorption, hexadecyltrimethylammonium bromide, montmorillonite, ...
... composition of the soil clay fraction, along with soil organic matter, plays an important role in the sorption process of the soil. However, natural clay minerals are much better sorbents of inorganic than organic contaminants, such as nonionic pesticides. On the other hand, due to the high solubility, pesticides ...
... montmorillonites during the modification treatment and adsorption process. Based on the X-ray diffraction diagrams, it was concluded that, after saturation with the HDTMA complex, there was an expansion of the interlayer space. Depending on the degree of saturation, the long-chain organic ...Lazar Kaluđerović, Zorica Tomić, Rada Đurović-Pejčev, Maja Milošević. "Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization in Sorption of the Herbicides" in Eurosoil2020, online event 2021, Eurosoil, Frontiers Abstract Book (2021)
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Petrographical and organic geochemical study of the subbituminous coal from the Dubrava field, Aleksinac basin (Serbia)
Željana Sekulić, Ksenija Stojanović, Achim Bechtel, Reinhard Sachsenhofer, Miomir Petrović, Ivan Kojić, Dragana Životić (2019)... contribution of chemoautotrophic bacteria. Content of total n-alkanes increases through the seam, Which is associated with notable decrease of content of short-chain (С15-Сг0) and increase of long-chain (Cz6-Ca3) homologues. The obtained results suggest lowering of the water table during the formation ...
... suggesting the cyclic repetition of environmental conditions. The deepest coal layer, located under the lower oil shale package, contains higher amount of MM, associated with high amount of pyrite. Biomarker composition is relatively similar to that of samples from deeper parts of the Main coal seam ...
... hopanoids are the most abundant hydrocarbons in extractable OM of samples from the Main coal seam. This implies prevalence of angiosperm derived precursor OM, and pronounced microbial activity during diagenesis. Conifer diterpenoids are also present. The ratio of diterpenoids to the sum of diterpenoids ...Željana Sekulić, Ksenija Stojanović, Achim Bechtel, Reinhard Sachsenhofer, Miomir Petrović, Ivan Kojić, Dragana Životić. "Petrographical and organic geochemical study of the subbituminous coal from the Dubrava field, Aleksinac basin (Serbia)" in 71st Annual Meeting of the International Commitee for Coal and Organic Petrology (ICCP), The Hague, Netherlands, 15. – 21. September 2019, International Commitee for Coal and Organic Petrology (ICCP) (2019)
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Critical disorder and critical magnetic field of the nonequilibrium athermal random-field Ising model in thin systems
Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Đorđe Spasojević. "Critical disorder and critical magnetic field of the nonequilibrium athermal random-field Ising model in thin systems" in Physical Review E, American Physical Society (APS) (2019). https://doi.org/10.1103/PhysRevE.100.032113
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Some examples of interactions between certain rare earth elements and soil
... determination of parameters n and kf, and thus the equation is obtained (3): log q = log kf + 1/n log c1, (3) where log kf in the diagram represents the intercept at y axis, and 1/n the line inclination.26 Table II presents the values of the initial mass of the metallic ion (x0) - the mass of ions in ...
... consequence of the improper waste disposal are seen very quickly.13 In this paper the equilibrium between the liquid and solid phase has been studied and which can contribute to elimination of these elements from the contaminated soil. To describe the affinity of the rare earth elements to soil the Freundlich ...
... Approximately 5 g of soil was measured and 50 mL of metallic ion solution added. The pH of the solution wasn’t adjusted. The solutions were mixed at the shaker at the speed of 80 rpm for two hours, and then they were filtered through “blue band” filter paper (pores size < 2 μm) into the 100 mL volumetric ...Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski. "Some examples of interactions between certain rare earth elements and soil" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC211006095N
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LRMI markup of OER content within the BAEKTEL project
... ility [13]. The Schema.org metadata has the goal to improve the display of search results, thus making it easier for users to find the right web pages. The machine readable information inserted into the code of web pages helps search engines interpret the sense of the text on those pages ...
... the course. In the collection of retrieved data related to the blocks are: id of block, type (html, problem, video, discussions ...) and the collection of sub-blocks, the name of the block Open edX Platform REST APIs is used for annotation of course static pages with microdata in compliance ...
... proposed as an extension to the Schema.org metadata vocabulary addressing the needs of the educational community. The main rationale for the approach is that the choice of a standardized learning object metadata vocabulary has valuable and beneficial implications. Within the BAEKTEL platform, machine ...Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić. "LRMI markup of OER content within the BAEKTEL project" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade : Belgrade Metropolitan Univesity (2015)
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An oilfield in Libya: A new model to enhance waste water disposal
Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković. "An oilfield in Libya: A new model to enhance waste water disposal" in Energy & Environment (2016)
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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.... pra-vi-ma. We apply the algorithm to the complete Serbian translation of the Russian socialist realist novel “Kak zakalyalas’ stal’” (How the Steel Was Tempered) by N. Ostrovsky. The choice is motivated by the fact that a parallel corpus consisting of the first ten chapters of the novel and their t ...
... investigate many properties of syllables. In this paper we limit ourselves to analyses of three aspects: 1) the rank-frequency distribution, 2) the distribution of length, and 3) the relation between length and frequency. The goodness-of-fit of a model is evaluated in terms of the discrepancy coefficient ...
... pp. 137-138; the highest value of 𝑎 is 1.6543 for a Hawaiian text, i.e. for a text written in a very analytical language). It can be a consequence of the fact that the inventory of syllables is, at least for Slavic languages, much more restricted that the one of words. The trend of the empirical repeat ...Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová. "Frequency and Length of Syllables in Serbian" in Glottometrics (2019)
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The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua. "The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis" in Environmental Earth Sciences, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s12665-021-09392-1
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Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles
Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović (2013)Kinetika i mehanizam reakcija supstitucije između [Ru(trpi)(bpi)Cl]+ sa nukleofilima gvanozin-5′-monofosfatom, L-histidinom, tioureom i dimetilsulfoksidom proučavani su spektrofotometrijski u 0,1 M NaClO4 na 310 K. Red reaktivnosti za odabrane ligande je: tiourea > gvanozin-5′-monofosfat > L-histidin > DMSO. Ovaj red je povezan sa elektronskim, strukturnim i hemijskim karakteristikama kompleksa i nukleofila. Reakcija supstitucije sa tioureom je proučavana na tri različite temperature (288, 298 i 310 K). Negativna entropija aktivacije DS = potvrđuje asocijativni način aktivacije. Formiranje kompleksa [Ru(trpi)(bpi)H2O]2+ sa ligandima ...... reciprocal of the estimated variance of the measurement. Wi ¼ 1=r2 ¼ 1=½r2E þ ðdE=dVÞ2r2V � ð8Þ where rE and rV are the estimated variances of the potential and volume readings, respectively. The quality of the fit was judged by the values of the sample standard deviation S and the goodness of fit v2 ...
... ing the formation of the reaction product can be evaluated from the slope of a plot kobsd vs. [L]. The experimentally obtained results are summarized in Table 1 and presented in Fig. 2. The value for the rate constant of the reverse reaction k1, which is independent on the concentration of nucleophile ...
... a func- tion of time at 310 K. The complex and ligands were dissolved in aqueous 0.1 M NaClO4 with the addition of 20 mM NaCl to prevent the spontaneous hydrolysis of Ru(II) complex [42–44]. The concentration of 20 mM NaCl was chosen after recording the changes in absorbance of the complex at different ...Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović. "Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles" in Monatshefte für Chemie - Chemical Monthly, Springer Science and Business Media LLC (2013). https://doi.org/10.1007/s00706-013-1044-1
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Multi-word Expressions for Abusive Speech Detection in Serbian
Ovaj rad predstavlja istraživanja na usavršavanju i unapređenju srpske verzije rečnika Hurtlex, višejezičnog leksikona uvredljivih reči. Posebnu pažnju posvećujemo dodavanju izraza sa više reči (polileksemskih jedinica) koji se mogu smatrati uvredljivim, jer su takvi leksički zapisi veoma važni za postizanje dobrih rezultata u mnoštvu zadataka otkrivanja uvredljivog jezika. Srpski morfološki rečnici se koriste kao osnova za čišćenje podataka i stvaranje rečnika. Istaknuta je veza sa drugim leksičkim i semantičkim resursima na srpskom jeziku i predviđena je izgradnja sistema za ...... and are the abusive MWEs mainly compositional or not, are presented at the end of the paper. 2 Related work The use of offensive and hateful language has been a concern since the early days of the Internet. It has been estimated that the number of MWEs in the lexicon of a native speaker has the same order ...
... to one of these two levels: 1) conservative: obtained by trans- lating offensive senses of the words in the original lexicon and 2) inclusive: obtained by translating all the potentially relevant senses of the words in the original lexicon. The basis for HurtLex was a lexicon of offensive terms prepared ...
... (2007) presented the results of an infor- mation search experiment in search of attacks which are the result of national, racial, or religious hatred and intolerance. The aim was to develop a system which would recognize the news covering these topics, annotating certain components of the text, which, viewed ...Ranka Stanković, Jelena Mitrović, Danka Jokić, Cvetana Krstev. "Multi-word Expressions for Abusive Speech Detection in Serbian" in Proceedings of the Joint Workshop on Multiword Expressions and Electronic Lexicons, Association for Computational Linguistics (2020)
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Evaluation And Perspectives Of Underground Coal Mines In Serbia
... 32 1.41 1.49 1.51 Rank of the underground coal mines operated by PCUCE obtained after completion of the calculation according to the AHP method is given in the Table 7. It can be seen that Soko has the best ranking, while the Jarando pit of Ibarski mines has the worst ranking. This result is ...
... subsidies from the Budget of RoS. The purpose of this paper is to apply more recent decision-making tools, such as Analytical Hierarchy Process (AHP), for the purpose of evaluating and ranking of the mines operated by PCUCE. Criteria for evaluation Initial step for evaluation of mines operated ...
... t. For each level in the hierarchy it is necessary to know whether the pair-wise comparison has been consistent in order to accept the results of the weighting. The parameter that is used to check this is called the Consistency Ratio. The consistency ratio is a measure of how much variation is ...Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić. "Evaluation And Perspectives Of Underground Coal Mines In Serbia" in 7th Balkan Mining Congress Preceedings - BalkanMine2017, Prijedor, 11-13. oktobar 2017., Banjaluka : University of Banjalika, Faculty of Mining, RS, BiH (2017)
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Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)
Milica Mrdak, Eva Wagerer, Milan Sudar, Nevenka Djerić, Martin Đaković, Hans-Jürgen Gawlick. "Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2024). https://doi.org/10.31577/GeolCarp.2023.26
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Two approaches to compilation of bilingual multi-word terminology lists from lexical resources
In this paper, we present two approaches and the implemented system for bilingual terminology extraction that rely on an aligned bilingual domain corpus, a terminology extractor for a target language, and a tool for chunk alignment. The two approaches differ in the way terminology for the source language is obtained: the first relies on an existing domain terminology lexicon, while the second one uses a term extraction tool. For both approaches, four experiments were performed with two parameters being ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Two approaches to compilation of bilingual multi-word terminology lists from lexical resources" in Natural Language Engineering, Cambridge University Press (CUP) (2020). https://doi.org/10.1017/S1351324919000615
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Analysis of the exhaust emissions inventory from auxiliary mining machines
Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović (2023)Open-pit coal mines are equipped with a large number of mining machines and vehicles with diesel engines. Due to common daily operation of these machines and vehicles large amounts of exhaust gases which contain numerous pollutants are emitted into the atmosphere. The demand to reduce air pollution induced the activities in developed countries to map and calculate all gases emitted by industries to formulate and select adequate preventive activities. In collaboration with machine manufacturers, emission standards for off-road machines ...Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović. "Analysis of the exhaust emissions inventory from auxiliary mining machines" in 9th International Conference Mining and Environmental Protection, University of Belgrade, Faculty of Mining and Geology (2023)