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Упит dcterms_subject_txt:continuous part of combined system (CCS)

2853 items

  • Coupling of artificial intelligence methods in the development of hybrid intelligent systems

    Ranka Stanković, Ivan Obradović, Nikola Lilić (2001)
    In this paper we present an approach which couples various artificial intelligence (AI) methods in the solution of complex problems that cannot adequately be solved by a single AI method. We argue that the resulting, hybrid intelligent systems (HIS) can be successfully implemented with the use of available AI software libraries. Different coupling methods are analyzed and a classification of hybrid systems based on the chosen method is given. Two case studies of hybrid systems used in mining engineering ...
    hibridni inteligentni sistemi, spregnuti sistemi, metode veštačke inteligencije, rudarske primene veštačke inteligencije
    ... significantly smaller for the same number of iterations when combined GA and BP are used for NN training. This justifies the coupling of GA and NN for obtaining a more reliable prediction. Further extension of this system through an expert system which, on basis of the results obtained by the neural ...
    ... s. The VENTEX [2] system was developed as a knowledge-based (symbolic) upgrade of the SimVent numerical package and it thus belongs to the category of coupled numerical and symbolic systems. The numerical part consists of SimVent simulation routines and the symbolic part of the mine ventilation ...
    ... given. Two case studies of hybrid systems used in mining engineering are presented: a system for planing and analysis of mine ventilation, as an example of intercommunicating hybrid systems, and a system for the analysis of area air pollution load, with characteristics of both function-replacing ...

  • 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 ...
    ... languages such as Serbian, some kind of normalization of morphological forms has to be performed both for document indexing and query processing. One soultion is to use stemmers. For Serbian, work on several stemmers was reported: a stemmer as a part of a larger system for information retrieval, PoS tagging ...
    ... is the length of the text in the number of simple words; 6. Calculating document frequency dfj as the number of documents in the collection in which the term Tj appears, and the acceptable indicator of term value as a document discriminator as log(N/dfj); 7. Calculating the combined measure tf idf ...
    ... the Geological Information System of Serbia, which has been developed in several phases over the past decade. The aim of develop- ing such an information system was to establish an object-oriented database for digital archiving of geologic data, and provide a modern and effective in- formation basis for ...

  • Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit

    Uros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić (2024)
    Northern Serbo–Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformations

  • 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
    ... was semi-automatically generated from the published version of RuThes (RuThes-lite 2.0) (Loukachevitch et al., 2018). Table 2: Quantitative characteristics of synsets and entries in RuWordNet Part of Speech Number of Number of Number of Synsets Unique Entries Senses Nouns 29,296 68,695 77,153 Verbs ...
    ... specific synset did not contain a specific part of speech but its parent and child had text entries of this part of speech. In such cases, the hypernymy-hyponymy relation was established between the child and the parent of this synset. Similar to the current version of Princeton WordNet, in RuWordNet cla ...
    ... that is, each example of the concept-part must, throughout its entire existence, require the existence of the concept-whole. This corresponds to the guidelines of information-retrieval thesaurus standards rec- ommending that part-whole relations should be established when the part-concept ”inherently ...

  • Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    analogno modelovanje, raspodela deformacija, geometrija indentera, Černa i Timok rasedni sistem
    ... elevated shortening dominated wedge south of the indenter to strike-slip domi- nated low-topography structures to the west of the indenter. Directly south of the indenter, the displacement is perpendicular to the rigid block. In this part of the system, the inclined margin acts as a thrust ramp ...
    ... et al., 2019, 2021). An initial 4 cm of northward translation is followed by a phase of combined translation and rotation. The purpose of these two phases of imposed kinematics is to create strike-slip deformation (in the first phase) and to study influ- ence of coupled rotation and translation (the ...
    ... western margin of the indenter displays a more complex geometry than the one in the refer- ence model because of the combined influence of the rotation and viscous layer at the bottom. In M6 it consists of two interconnected basins (Fig. 8c) which gradually enlarge and connect in later stages of deformation ...

  • A Tel Platform Blending Academic And Entrepreneurial Knowledge

    Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović (2013)
    ... support system is a very important part of the entire concept implemented through the BAEKTEL platform as it offers and invaluable aid for better understanding of the available OER content. 5. CONCLUSIONS The BAEKTEL platform outlined in this paper opens a new dimension in the blending of two ...
    ... segments of knowledge. The BAEKTEL language support system consists of several software components handling simultaneously several types of language resources: grammars, lexical and textual resources (Fig 2). One of the basic lexical resources is the system of morphological dictionaries of Serbian ...
    ... promote open publishing of materials, and best practice design principles. The content management system that BAEKTEL relies on is FMG CMS, an in-house Content Management System (CMS) developed by the University of Belgrade, Faculty of Mining and Geology (FMG) as the core of its blended learning ...

  • 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
    ... There are two types of dictionaries: dictionary of simple words and dictionary of compounds. Two main components of dictionary of simple words are DELAS and DELAF. Here we have an entry found in Serbian dictionary of simple words: učiteljica, N651+Hum+GM:fs4v. The first part of entry is a lemma: ...
    ... language support system is developed within the BAEKTEL metadata portal. In this paper we will describe the linguistic component of the system, the resources and tools used as an educational system as a whole and to improve the visibility of resources in the Internet. This component consists of morphological ...
    ... They are combined with some statistical measures for term extraction. The first step is analysis of terms in existing term base mentioned before (RudOnto, GeolISSTerm). It was recognized 14 most productive patterns that represent structure of MWU terms. They are represented in form of transducers ...

  • 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

  • Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine

    Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)
    The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...
    Fuzzy theory, hydraulic excavator, selection, quality of service, asset management

  • Availability as a dimension of energy security in the Republic of Serbia

    Boban Pavlović, Dejan Ivezić (2016)
    There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...
    raspoloživost energije, energetski indikatori, energetska bezbednost
    ... natural gas combined) are taken into consideration. The SOS is especially affected in the natural gas sector because of import dependency on one supplier (Russia) and only one supply route through Hungary. The reserves and resources of coal provide some certainty in SS of the energy system of Serbia ...
    ... deter- mination of availability – as a dimension of energy security in Serbia. Concept and dimensions of energy security Very often energy security has different meaning in different situations and to different people. Definitions of energy security vary from continuous supply of oil to the environmen- ...
    ... plants efficiency: 1a Gross production of electricityTM 0.34 (34%) Fossil fuel inputs = = (13) Combined heat and power plants efficiency. For the purpose of calculating the effi- ciency of energy transformation for combined heat and power plants, aggregate data of pro- duced electricity and heat was ...

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... rules of the international legal procedure, in 2007, when they officially became an integral part of the CC licensing system. Thus, the validity of national licenses throughout the world has been ensured, and authors and right holders from Serbia have been provided with free licensing of published ...
    ... with the European system of higher education and enhancement of academic mobility of teaching and non- teaching staff and students”. Finally, Article 32 stipulates that the “competent Ministry takes care of the harmonization of the educational system in the Republic with the trends of educational d ...
    ... Although there is a high degree of similarity between individual OERs and MOOCs, there are also significant differences. The first difference is (non) variability: one of the main features of the OERs is that they can be changed and combined independently of their authors, while a MOOC do not ...

  • State and perspective of individual household heating in Serbia: A survey-based study

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...
    Domaćinstva, Individualni sistemi grejanja, Korišćenje energije, Stavovi potrošača, Anketa, Srbija

  • Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom

    Lidija Beko, Ivan Obradović, Ranka Stanković (2015)
    ... strongly agree. A questionnaire was divided into three parts: 1) the attitudes of students toward using flashcards; 2) the attitudes of students toward using L1; 3) the attitudes of students toward combined method of CLIL, flashcards and L1. 7. RESULTS AND DISCUSSION Figure 2 Questions related ...
    ... and geology terminology. Our suggestion is, therefore, the usage of the in-house FlashCards, RudOnto and GeolISSTerm combined as the optimal solution to enhance the acquisition of specific terminology and facilitate the usage of contemporary engineering literature. 9. REFERENCES Auerbach, Elsa ...
    ... CLIL, L1 and flashcards The Figure 4 shows that: the combined method of flashcards and L1 in the CLIL is useful learning method (Q1) (37.63%), which facilitates learning vocabulary (Q2) (38.78%), moreover, many of the students agree that the method maximized the lexical improvement (Q3) (47.31%) ...

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)
    Multidisciplinary

  • Towards Automatic Definition Extraction for Serbian

    Ranka Stanković, Cvetana Krstev, Rada Stijović, Mirjana Gočanin, Mihailo Škorić (2021)
    U radu su prikazani preliminarni rezultati automatske ekstrakcije kandidata za definicije rečnika iz nestrukturiranih tekstova na srpskom jeziku u cilju ubrzanja razvoja rečnika. Definicije u rečniku Srpske akademije nauka i umetnosti (SANU) korišćene su za modelovanje različitih tipova definicija (opisnih, gramatičkih, referentnih i sinonimskih) koje imaju različite sintaksičke i leksičke karakteristike. Korpus istraživanja sastoji se od 61.213 definicija imenica, koje su analizirane korišćenjem morfoloških e-rečnika i lokalnih gramatika implementiranih kao pretvarači konačnih stanja u paketu za obradu korpusa otvorenog ...
    ... result, which can be a modification of the source text by adding tags for types of recognized 1 Unitex/GramLab - Lexicon-Based Corpus Processing Suite (https://unitexgramlab.org/) 2 A part of this lexicon is publicly available for use within the Unitex system words or a recognized syntactic ...
    ... basic meanings of simple, non-derived words (which have no synonyms), and a synonymous one, which consists of words of close or the same semantic structure, when there is a near synonym of that lexeme or when that token is marked with wider uses (Gortan-Premk 2014: 131–132). Combined definitions are ...
    ... Pattern comparison is based on the use of an asterisk (wildcard *), which facilitates the clustering of sentences. Each sentence class is then generated by a grid of word classes (each class is either a high-frequency word or a word’s part-of-speech). A key feature of the approach is the ability to identify ...

  • A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor

    Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić (2023)
    železnica, prekogranični teretni saobraćaj, ARIMA, LSTM, SSA

  • Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints

    Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski (2024)
    Apuseni-Banat-Timok-Srednogorie belt, danubicum, paleomagnetism, oroclinal bending

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change