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Упит dcterms_subject_txt:method of least squares

2837 items

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone

    Emő Márton, Marinko Toljić, Vesna Cvetkov (2022)
    The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...
    Adria–Europe suture, Vardar Zone, Paleomagnetism, Thrusting, Vertical axis rotation

  • Is the Sava-Vardar zone a remnant of an Upper Cretaceous ocen? Pro et contra

    Vladica Cvetković, Dejan Prelević, Ana Mladenović (2024)
    Neotethys, ocean closure, subduction
    ... which argues against the existence of a wide ocean between Adria and Europe in the Late Cretaceous. 3) The numerical 2D modelling [7] was based on conservative finite differences with marker- in-cell method. It was so far able to reproduce the formation of two Jurassic ophiolite belts via a single ...
    ... this time marks the true onset of Adria-Europe collision, then all the subsequent magmatic ecvents should be considered post-collisional. CONCLUSIONS The above-presented pro etf confra arguments do not allow for a definitive conclusion. However, it can be at least stated that there is no direct ...
    ... CeBepHa MakcjuoHuja Fifth Congress of Geologists of thce Republic of North Macedonia IS THE SAVA-VARDAR ZONE A REMNANT OF AN UPPER CRETACEOUS OCEAN? PRO ET CONTRA !Vladica Cvetković, lDejan Prelević, ZAna Mladenović TUniversity of Belgrade, Faculty of Mining and Geology, Serbia, vladica.c ...

  • Two approaches to compilation of bilingual multi-word terminology lists from lexical resources

    Branislava Šandrih, Cvetana Krstev, Ranka Stanković (2020)
    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 ...
    Linguistics and Language,Software,Artificial Intelligence,Language and Linguistics

  • Malathion-induced inhibition of human plasma cholinesterase studied by the fluorescence spectroscopy method

    V. M. Pavelkić, K. S. Krinulović, J. Z. Savić, M. A. Ilić (2008)
    The in vitro effect of technical grade malathion was assessed via the kinetic parameters of human plasma butyrylcholinesterase (BChE) using N-methylindoxyl acetate as a substrate for BChE. An inhibitor kinetics study demonstrated the existence of a biphasic inhibition curve, indicating high- and low-affinity binding sites of malathion. The IC50 values as calculated from the experimental inhibition curves were 1.33 × 10–9 and 1.48 × 10–5 M for the high- and low-affinity binding sites, respectively; Hill’s analysis gave 1.29 × ...
    Малатион, инхибиција, хумана плазма холинестераза, метода флуоресцентне спектроскопије

  • Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US

    Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić (2023)
    Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...
    CO2, емисија, угаљ, термоелектрана, САД, ЕУ-27
    ... three decade is shown in Figure 1. About 495 million tons of coals were consumed in the US, that is around 11% of total US energy consumption. Since 1964, this is the lowest amount of US total annual energy consumption since at least 1949 [6, 7|. Although coal use was once common in the industrial ...
    ... primary fuel in the European energy mix, the transition to cleaner forms of energy and innovative technologies, such as carbon capture and storage, is imperative to meet the EU's commitment to reduce CO» emissions by at least 55% by 2030 and to become the world"s first climate-neutral bloc by 2050 ...
    ... 4 shows the diagram of the total production of electricity in the countries of the European Union, as well as the generation of electricity from coal, as well as the share of coal in the energy mix of annual production. It remains an indisputable fact that the problems of climate change and CO» ...

  • Combining Heterogeneous Lexical Resources

    Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić (2004)
    development of lexical resources, morphological dictionaries, WordNet
    ... can be made to this kind of relations: they are derived from literals and not from synsets themselves. However, such relations exist in the Princeton WN as well, and they can be understood as ‘at least on literal from the source synset is in the relation with al least one literal in the target ...
    ... 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 ...
    ... 1 Introduction 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 dictionaries of Serbian (SMD) in Intex ...

  • Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)

    Ana Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković (2019)
    In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...
    Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinica

  • Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae

    Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)
    Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...
    Geochemistry and Petrology

  • Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)

    Pavle Tančić, Aleksandar Kremenović, Predrag Vulić (2019)
    In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...
    grandite, XRPD, crystal structure, structural dissymmetrization

  • Multicriteria Analysis and Optimization of Groundwater Control Systems with Variable Values of Criterion over Predefined Time Points

    Milica Stepanović, Dragoljub Bajić, Dušan Polomčić (2021)
    VIKOR метода, алтернативе, компромисно решење, подземне воде, одводњавање рудника

  • Аnaliza mogućnosti povećanja nagiba završne kosine površinskog kopa “Podbraćan”

    Vladimir Čebašek, Veljko Rupar (2018)
    Eksploatacijom boksita iz ležišta "Podbraćan" formiran je površinski kop sa maksimalnom visinom zavšne kosine od 280 m. Redovnom kontrolom stabilnosti trenutnog stanja kosina površinskog kopa utvrđeno je da faktor sigurnosti iznosi Fs = 1.71 – 1.85, a što je ukazalo da postoji mogućnost povećanja nagiba kosine. U radu je prikazan postupak analize mogućnosti povećanja nagiba završne kosine površinskog kopa "Podbraćan".
    stabilnost kosina, povećanje nagiba kosina, metoda konačnih elemenata

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... the proper use and meaning of terms in the field of their study. In addition to that, especially in the case of the so-called "minor" languages, such as Serbian, it is of paramount importance to make students familiar with the appropriate terminology in at least one of the "major" languages. When ...
    ... goal, we concluded that at least the development of Moodle glossaries in parallel with RudOnto should be terminated. We decided to continue developing RudOnto as the main terminological resource and derive Moodle glossaries from it. Thus we settled for the current format of Moodle glossaries, and looked ...
    ... such as "has/is constructive characteristic (of)" or "has/is technological parameter (of)". By the introduction of such relations the semantic structure of RudOnto acquired features of semantic network. As RudOnto is a multilingual resource, another type of relations is introduced, namely those between ...

  • On the compatibility of lexical resources for NooJ

    Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović (2012)
    Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions.
    ... different in all languages, and mappings of 8 [Type text] corresponding codes did not exist and were difficult to establish. That was in compliance with the observation that the solution of such problems depends on at least two components (Vitas et al. 2008). One of them is how “faithful” is the ...
    ... y. A standardization effort aimed at defining at least common feature codes would certainly be a step forward. Linguistic analysis results In the next step, NooJ resources were applied to texts of Verne’s novel and a linguistic analysis of the results obtained was performed. The analyzed texts ...
    ... content of *.def files for resources of the seven selected languages. Table 1 presents the results of the analysis of *.def files in the case of nouns. Value domains of two properties, one of them appearing in all languages and the other appearing in five out of seven, namely, 2 NooJ linguistic ...

  • 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
    ... and literary researches. This query retrieved 129 aligned segments, each of which contained at least one of the keywords from the produced query set in at least one of the languages. It comes as a surprise that only 8 of these segments contained query keywords in both languages. This is mainly ...
    ... University of Belgrade 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 ...
    ... dictionary consists of app. 1,260,000 entries [7]. 2.3 Semantic Networks - Wordnet Semantic networks, seen as one important node in the hierarchy of ontologies, are used more and more in various phases of the automatic analysis of text. The tool WS4LR expects them to be in the form of wordnets, that ...

  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ... It is numerically quantified using the Herfindahl–Hirschman Index (HHI) that indicating the level of free market concentration. The HH index is calculated as the sum of the squares of the percentage (pi) of individual companies in the market [74]: HHI = Σpi 2 (34) Based on the 2018 energy agency annual ...
    ... composition. In the context of pollutants observed, the use of natural gas gives emissions of nitrogen oxides, but they are at least relative to standard fossil fuels. The amount of NOx emitted is directly related to projections of natural gas consumption. Table 23 lists the projections of natural gas consumption ...
    ... indicator in the description of the synthesis indicator and to minimize the subjective influence of the model’s author. The multi-criteria AHP method uses the Satie scale of parameter significance assessment [61]. AHP matrix consists of relative Symmetry 2020, 12, 908 10 of 42 weights and its calculation ...

  • OntoLex Publication Made Easy: A Dataset of Verbal Aspectual Pairs for Bosnian, Croatian and Serbian

    Ranka Stanković, Maxim Ionov, Medina Bajtarević, Lorena Ninčević (2024)
    Ovaj rad predstavlja novi jezički resurs za pretraživanje i istraživanje verbalnih aspektnih parova u BCS (bosanskom, hrvatskom i srpskom), kreiran korišćenjem principa Lingvističkih Povezanih Otvorenih Podataka (LLOD). Pošto ne postoji resurs koji bi pomogao učenicima bosanskog, hrvatskog i srpskog kao stranih jezika da prepoznaju aspekt glagola ili njegove parove, kreirali smo novi resurs koji će korisnicima pružiti informacije o aspektu, kao i link ka aspektnim parovima glagola. Ovaj resurs takođe sadrži spoljne linkove ka monolingvalnim rečnicima, Wordnetu i BabelNetu. ...
    aspekt glagola, lingvistički otvoreni podaci, BCS

  • Indexing of textual databases based on lexical resources: A case study for Serbian

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2015)
    In this paper we describe an approach to improvement of information retrieval results for large textual databases by pre-indexing documents using bag-of-words and Named Entity Recognition. The approach was applied on a database of geological projects financed by the Republic of Serbia in the last half century. Each document within this database is described by metadata, consisting of several fields such as title, domain, keywords, abstract, geographical location and the like. A bag of words was produced from these ...
    ... (the name of one settlement), which the new system again misses. Fig. 1. One document dealing with the gold. 5 Evaluation The goal of evaluation was to assess the efficiency of the old and new search method. The evaluation was performed over the entire collection of documents and a set of 10 information ...
    ... simple word forms). Almost all documents contained at least one NE — in only 61 (1.24%) not a single NE was recognized. On the average, 4 NEs of all types were recognized per document, with as many as 47 NEs for one of them. For indexing we used only three top level types: personal names, locations and ...
    ... be parts of other words are used in a search. As explained before, the old system does not require alignment with whole words precisely in order to recognize at least some inflectional forms. This problem is generated by query keywords such as the chemical symbol for gold “Au” or the name of the company ...

  • Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)

    Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović (2024)
    General Materials Science

  • Development of an integrated model for open-pit-mine discontinuous haulage system optimization

    Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)
    equipment selection, mine mechanization, expert judgment, linguistic variables, MCDM, FAHP