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Упит dcterms_subject_txt:multicriteria decision making

292 items

  • 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
    ... 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 the production of MWU dictionary lem- mas more efficient. This procedure, which strongly relies on our comprehensive e-dictionaries of Serbian simple ...
    ... [14] and arguments are presented why they are in general more difficult for NLP than Romance and Germanic languages, and which of their features are making them, nevertheless, more suitable for higher levels of processing, like parsing. However, for lexical representation of Serbian MWUs, less favorable ...

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... operation for over 20 years. Based on analyzing the bucket-wheel dredger performance, productivity, maintenance costs, and reliability, a rational decision was made: to rehabilitate the most essential parts of the dredge, including the bucket wheel and the gearbox. However, the selection and construction ...
    ... operation for over 20 years. Based on analyzing the bucket-wheel dredger performance, productivity, maintenance costs, and reliability, a rational decision was made: to rehabilitate the most essential parts of the dredge, including the bucket wheel and the gearbox. However, the selection and construction ...

  • Preparation of Multimedia Document “YU Rock Scene”

    Milena Obradović, Aleksandra Arsenijević, Mihailo Škorić (2017)
    SUMMARY: This study will present the preparation process of a multimedia document entitled YU ROCK SCENE in which participants were senior students of undergraduate studies of the Department of Library and Information Science at the University of Belgrade Faculty of Philology during the academic year 2014/2015, as a part of the subject Multimedia Documents. This study gives an overview of the historical development of rock and roll in the territory of the former Yugoslavia, rock scene in Yugoslav republics, ...
    multimedia document, library science, information science, rock and roll, music, Yugoslavia
    ... of jeans caused a genuine revolution in the fashion world. Rock and roll too was not lagging behind these trends. The musicians of the time started making cover versions of world famous music hits, especially those of Elvis Presley, Chuck Berry, Buddy Holly and many other authors. It is difficult to ...
    ... grupe table Figure 1. Example of a region page – Slovenia First the basic composition was made with hierarchy architecture in its core. Instead of making HTML pages for each and every region, city or band, four PHP- scripts that consult the SQL-database were made and depending on the user’s choice d ...

  • Building learning capacity by blending different sources of knowledge

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić (2016)
    ... knowledge upon which innovative and effective approaches to today’s social problems can be built”1. In this paper we describe an approach to making available both entrepreneurial knowledge to university students on a wider basis and 1 http://www ...
    ... Although LOM is the leading and most widely used educational metadata specification, its main disadvantage is that it features too many elements, making it extremely tedious to implement. As a consequence, the majority of implementations use in practice only a few elements from the LOM schema. Thus ...

  • Business Models for Small-scale Biomass Projects Development

    Dejan Ivezić, Miodrag Gluščević, Marija Živković (2019)
    Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...
    ... term. ESCO companies can launch the initiative by its own and contact the municipality or local community to promote the project and convince local decision makers that this is the best way of project implementation. After the expiry of the contract, it can be renewed, or the entire facility is transferred ...

  • Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia

    Jelka Krušić , Biljana Abolmasov, Miloš Marjanović (2021)
    The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both of debris flow cases started with initial sliding of huge volume block, prolonging to behave as flowing process. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very ...
    tecišta, zadržavanje nanosa, RAMMS, validacija

  • Advantages and challenges in presenting mathematical content using EDX platform

    Marija Radojičić, Ivan Obradović, Ranka Stanković, Olivera Kitanović, Roberto Linzalone (2016)
    ... help freshmen prepare for entrance exam. The course is available within edX-BAEKTEL platform1 (Image 1). We believe this is a suitable way for making preparation materials accessible to a larger community of potential students. Such a course allows them to access free and open materials anytime ...

  • The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia

    Dragoslav Rakić, Irena Basarić, Jovana Janković, Tina Đurić (2019)
    For the purpose of the facilities construction within the transfer station „Prelici“ in Cacak, specific geotechnical investigations were carried out based on which the technological project with the facilities schedule was developed. Significant deviations in relation to the presented results were determined during earthworks, so the additional geotechnical investigation works were carried out. Since the new investigation works have determined a different cross section of the terrain, it was proposed to move the planned facilities which led to the ...
    landfill, geotechnical investigations, transfer station
    ... stations, as it was performed at the city landfill in Cacak. Certainly, many specificities are noted in practice, which reduce the desired effects, making it difficult and sometimes impossible to implement the imaginary strategy and technical solutions. The most common barriers that arise in everyday ...

  • 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
    ... debris flow is longer than the measured run-out distance obtained by the simulation model. Selanačka river transported material about 1 km longer, making instabilities down the river valley, which is likely due to the fact that it already had significant momentum upstream to begin with (torrential ...

  • Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry

    Steven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti (2021)
    Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...
    self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalization

  • Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia

    Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)
    Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia 1. INTRODUCTION The research community and the mining industry are making efforts to improve the environmental performance of mining operations by shifting to renewable energy. Previous studies showed that mineral exploration ...

  • Развој хибридног модела за оптиматизацију завршне контуре одлагалишта у површинској експлоатацији лежишта минералних сировина

    Aлександар Додеровић (2024)
    Површинска експлоатација минералних сировина захтијева претходно откопавање значајних( милионских) количина јаловине, које је неопходно транспортовати до локације на којој ће сеона трајно одложити. Традиционални приступ избора локације и дизајна одлагалишта се карактерише парцијалним приступом, заснованом на анализи неколико водећих критеријума као и на личном искуству инжењера, често занемарујући синергетски ефекат осталих утицајних фактора Технолошке операције које се односе на манипулацију јаловином, међу којима предњачи транспорт, генеришу највећи дио трошкова у површинској експлоатацији. Такође, цјелокупан процес експлоатације додатно је ограничен ...
    оптимизације завршне контуре одлагалишта, хибридни модел, површинска експлоатација, генетски алгоритам

  • 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 ...
    ... and guidelines were offered for their improvement. Keywords: definition modelling, definition extraction, Serbian, automatization of dictionary-making, local grammar 1 Introduction In the age of electronic lexicography, in which the goal is fast production of dictionaries and the products derived ...
    ... al., 2017) We will investigate whether definition models can improve standard word embeddings. 6 References A Style Guide for Dictionary-Making, Belgrade: SASA Institute for Serbo(-Croatian) (manuscript), 1959 and (supplemented) 2017 [Упутство за обраду Речника, Београд: Институт за српск ...

  • Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons

    Mihailo Škorić (2017)
    The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language-neutral sentiment analysis. It introduces several innovations in the existing framework of research and tests their effectiveness. It also presents a software tool especially made for that purpose, explains how it builds a database with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples ...
    data mining, information extraction, emotions, text on the web
    ... decide between multiple choices using a single parameter, task is reduced to deter- mination of what is positive and what is negative. With a goal of making a more cost-effective intelligent system, it would not be a good idea to ignore any available resources and that could po- tentially be useful. The ...
    ... files contain 3,884 conversations of 2,019 different users and 1,843,826 messages that those users exchanged. The content of these messages is used in making the database for this research. With this, the first two aforementioned prerequisites were fulfilled. 2.2 Assigning values to the determiners The ...

  • Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2017)
    Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...
    ... geology, exploration of mineral deposits, hydrogeology and engineering geology, as a modern and efficient information basis for planning, design and decision- making in the geological domain. A u t h o r P r o o f 4 R. Stanković et al. Within the GeolISS project a web portal1 was developed with the ...

  • Effects of Energy Production and Consumption on Air Pollution in Serbia

    Marija Živković (2019)
    Energy production and combustion, mostly from unregulated or inefficient fuel combustion, are the single most important anthropogenic sources of air pollutant emissions. Energy sector in Serbia is highly fossil fuel intensive: 87.88% of energy consumed in Serbia is related to fossil fuels, while almost 95% of energy sources are combusted. In 2017. energy related carbon dioxide emission in Serbia is was 47.95 million tones. The main source of carbon dioxide emission was coal, responsible for almost 70% of energy ...
    energy related emissions, Serbia
    ... directly or after they are transformed into other pollutants in the atmosphere. Around 6.5 million deaths are attributed each year to poor air quality, making this the world’s fourth-largest threat to human health, behind high blood pressure, dietary risks and smoking 4. Poverty and fossil fuel-intensive ...

  • Процена ризика од загађивања водних ресурса под утицајем напуштених рударских радова на простору Србије

    Nebojša B. Atanacković (2018-08-31)
    Велики број напуштених рударских радова и ограничена средства за рекултивацијуи ремедијацију деградираних простора подстакле су развој метода за издвајањеприоритетних локација на које је потребно усмерити даља истраживања. У датомконтексту, у склопу израде дисертације спроведене су научно-истраживачкеактивности које су за предмет имале анализу утицаја значајнијих напуштенихрударских радова на водне ресурсе на простору Србије јужно од Саве и Дунава.Разматрање предметне проблематике извршено је кроз развој и примену семи-квантитативне методологије за анализу ризика од загађивања површинских иподземних вода на регионалној размери. Примењена ...
    анализа ризика, водни ресурси, водна тела, рудничке воде, рударскиотпад, аналитички хијерархијски процеси, кластер анализа, математичка теоријаатрибута, функције припадности, семи-квантитативне методе
    ... територији АП Војводине, Универзитет у Београду, Рударско-геолошки факултет, Београд. 137. Saaty R. (2003) The Analytic Hierarchy Process (AHP) for Decision Making. Pittsburgh: Creative Decisions Foundation. 138. Saaty T.L. (1980) The Analytic Hierarchy Process. McGraw-Hill International Book Company, ...
    ... theory and application of the analytic hierarchy process. European Journal of Operational Research 74 (3), 426–447. 140. Saaty T.L. (2008) Decision making with the analytic hierarchy process. Int. J. Services Sciences 1(1) 83-98. 141. Sahoo, P.K., Tripathy, S., Panigrahi, M.K. et al. Bull Eng ...
    ... 47068625/MARP001rev4, URS Infrastructure & Environment UK Ltd. Manchester, UK. 168. US EPA (1984) Risk Assessment and Management: Framework for Decision- Making. U.S. Environmental Protection Agency. 169. US EPA (1992b) Hazard Ranking System Guidance Manual. Hazardous Site Evaluation Division, U.S. ...

  • An Approach to Development of Bilingual Lexical Resources

    Stanković Ranka, Obradović Ivan, Trtovac Aleksandra (2012)
    ... the future, further automatization of this process will be considered, as well as the possibility of adding more languages to Biblimir, thus making it a multilingual lexical resource. As a member of META-NET, the Serbian HLT Group plans to make this resource, among others, available to the ...

  • Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке

    Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић (2018)
    ...  1990. Magnetic interpretation in tree dimen‐ sion using Euler deconvolution. Geophysics, 50 (1), 80–91.  Tomphson, D., 1982. A new  technique  for making  computer‐assisted depht estimates  from magnetic  data. Geophysics, 47(1), 31–37.  Vasiljević, I., 2013. Definisanje arheoloških objekata na lok ...

  • Flyrock induced by blasting in surface mining

    Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)
    Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...
    razletanje, bušenje, miniranje, površinska eksploatacija, bezbednost, nesreća