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183 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
    ... structure, which had to model all relevant parameters of complex mine ventilation networks, the design and realization of database was executed in the MSAccess relational database management system. The system offers safe data archiving for complex data models as this one, as well as all procedures ...
    ... to solve these complex problems by coupling two or more AI methods, but also by integrating AI methods and conventional computer systems, such as database or spreadsheet applications. In this paper we present two hybrid intelligent systems which couple expert systems, neural networks and genetic ...
    ... intelligent systems represent not only a combination of different intelligent methods, but also their integration with conventional computer systems: database applications, spreadsheet applications, GIS environment, CAD/CAM, etc., with the ability to interchange data with different processes using different ...

  • An aproach to Implementation of blended learning in a university setting

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović (2011)
    ... geodatabase (GDB), A collection of geographic datasets of various types held in a common file system folder, a Microsoft Access database file, or in a multiuser relational database ... геобаза података (ГДБ), Колекција географских скупова података различитих типова који се смештају у заједничкоm каталогу ...
    ... and teaching assistants. The development environment for the production of the portal was based on the PHP scripting language, and the portal database was implemented on MS SQL Server 2008. For each of the several hundred courses available at FMG CMS two types of data were stored: static ...
    ... of previous tests or lists of oral exam topics, links to internal or external resources, etc. Figure 1: FMG CMS web page The FMG CMS database contains meta data, grouped by courses according to types of information, such as the date the information became available at the portal, the ...

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • Project BEWARE—Landslide Post-disaster Relief Activities for Local Communities in Serbia

    Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović (2017)
    ... FloodRelief of the Republic of Serbia. Project was funded by People of Japan. Overall aim of BEWARE project was to standardize post-event landslide database and closely involve local community of 27 municipalities affected byMay 2014 flooding and landslides episode in Serbia, and prepare them to cope ...
    ... its monitoring, named BEWARE (BEyond landslide aWAREness) was designed to address these issues. The aim was to standardize post-event landslide database, closely involve local community of 27 municipalities affected by May 2014 events in Serbia, and prepare them to cope with catastrophic events in ...
    ... Identifying critical sites for landslide rehabilitation 6. Improvement of governmental agencies practice in building/updating national landslide database from BEWARE itself, but also form general crowd sourcing approach. Participants, Partners and Beneficiaries Participants of BEWARE project were ...

  • A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice

    Nikola Lilić, Ivan Obradović, Ranka Stanković (2002)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...
    ... e, data access and modification functions. The database that SimVent operates with is a part of the global, integrated database of INVENTS. SimVent’s data services thus have two classes: dbUtility, containing functions related to the global database and dbSimVent, with functions related to data specific ...
    ... structure, which had to model all relevant parameters of complex mine ventilation networks, the design and realization of database was executed in the MSAccess relational database management system. The system offers safe data archiving for complex data models as this one, as well as all procedures ...
    ... activity in the mine ventilation planning and design process is the establishment of a basic or initial ventilation network and an appro- priate database containing all necessary data related to this network. The design process is followed by the implementation of the mine ventilation system as well ...

  • 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
    ... Technologies. Thus, for example, the Princeton WordNet - PWN (Fellbaum, 1998), has been in use for more than two decades as the standard lexical database for English. Several projects inspired by PWN for the development of wordnets for clusters of other languages have subsequently emerged, such as ...
    ... sloWNet, based on the semantic structure of the PWN. The Croatian Wordnet (CroWN) was enlarged with the WN-Toolkit and CroDeriV, a derivational database for Croatian (Oliver et al., 2015), from 10,026 synsets and 31,367 synset-lemma pairs to 23,137 synsets and 47,931 synset-lemma pairs. The WN-Toolkit ...
    ... developing and maintaining SerWN are presented in (Mladenović and Mitrović, 2014), the main improvement being the replacement of XML by a relational database. The tool provides monitoring of relevant statistics, such as the total number of synsets, the number of semantic relations, quality and speed of ...

  • Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)

    Biljana Rujević, Mihailo Škorić (2024)
    The paper describes linking the Digital Repository of the University of Belgrade, Faculty of Mining and Geology, with the eScience system in terms of transferring metadata about the results of researchers' scientific work. The steps taken to ensure a smooth harvesting of metadata are outlined. Additionally, a presentation of additional improvements to the OAI system is provided, aiming to contribute to the automatic linking of authors with their results in the eScience system.
    репозиторијуми, еНаука, метаподаци, Рударско-геолошки факултет

  • 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
    ... the band. All data together with given numbers was put into an Excel spreadsheet, and then transformed into a SQL database. Table 1 illustrates the way data is stored inside the database. Column GID (group identifier) is combined identifier of a music group (first digit – 1 – indicates that group is ...
    ... people. After the data Infotheca Vol. 16, No. 1–2, August 2016 121 Obradović M., et. al, “YU Rock Scene”, pp. 111–127 was harmonized with the database, all was transferred to a local server for further analyzing and testing of the website so that it would display the acquired data in a desired manner ...
    ... 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 dynamically generate proper HTML content. First script, mapa.php, shows the map of Yugoslavia with proper ...

  • Corpus-based bilingual terminology extraction in the power engineering domain

    Tanja Ivanović, Ranka Stanković, Branislava Šandrih Todorović, Cvetana Krstev (2022)
    Ovaj rad predstavlja resurse i alate koji se koriste za ekstrkciju i evaluaciju dvojezične, englesko-srpske terminologije u domenu energetike. Resursi se sastoje od postojeće opšte i domenske leksike i domenskog paralelnog korpusa; alati uključuju ekstraktore termina za oba jezika i alat za poravnavanje segmenata koji pripadaju korpusnim rečenicama. Sistem je testiran variranjem funkcije podudaranja koja utvrđuje prisustvo ekstrahovanog termina u poravnatom segmentu (odsečak), u rasponu od veoma labavog do strogog. Procena rezultata je pokazala da je preciznost izdvajanja termina ...
    Library and Information Sciences, Communication, Language and Linguistics

  • Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...
    Grejanje, Analiza životnog ciklusa, Drvna biomasa, Individualni sistemi grejanja
    ... gov/sites/production/files/2015-07/documents/emission-factors_2014.pdf https://www.ecoinvent.org/database/system-models-in-ecoinvent-3/system-models-in-ecoinvent-3.html https://www.ecoinvent.org/database/system-models-in-ecoinvent-3/system-models-in-ecoinvent-3.html ...
    ... recycling and/or final disposal. Emission factors (emissions per unit of the physical weight of materials) are obtained from the Ecoinvent 3.0 database (expressed by GWP100 per kg) [24] and the EPA stationary combustion emission factors inventory [23] (expressed by GWP100 per kg). Table 3. LCA ...
    ... nts/emission- factors_2014.pdf (accessed 25 Sept. 2020.) [24] Ecoinvent, Ecoinvent 3.0. System Models in ecoinvent 3.https://www.ecoinvent.org/database/system-models-in-ecoinvent-3/system- models-in-ecoinvent-3.html (accessed 30 Sept. 2020). https://www.pre-sustainability.com/legacy/download/ ...

  • Tectono-lithostratigraphic model of the Northern Banat Miocene sediments (Pannonian Basin, Serbia)

    Dejan Radivojević, Ljupko Rundić (2017)
    ... et al., 2008, ŠOLEVIĆ et al., 2008, RADIVOJEVIĆ et al., 2010, PIGOTT & RADIVOJEVIĆ, 2010, MATENCO & RADIVOJEVIĆ 2012, MAGYAR et al., 2013). °e database consisted of numerous seismic data, both 2D and 3D, and exploration wells data allowed building of subsurface model of explored area. Special emphasis ...
    ... et al., 2008, SOLEVIC et al., 2008, RADIVOJEVIC et al., 2010, PIGOTT & RADIVOJEVIC, 2010, MATENCO & RADIVOJEVIG 2012, MAGYAR et al., 2013). The database consisted of numerous seismic data, both 2D and 3D, and exploration wells data allowed building of subsurface model of explored area. Special emphasis ...

  • Complex geophysical survey on solving the problem of water loss in the karst terrain reservoir

    Branislav Sretković, Dejan Vučković (2023)
    Geophysical surveys in karst terrain are always a specific challenge. Each of them requires a careful consideration of the problem, specific conditions on the ground, the selection of adequate methods applicable in that specific and unique karst area. But they should have one thing in common: a complex approach and looking at the problem from wider to narrower, with a gradual narrowing of the investigation area, increasing the spatial precision and resolution of the obtained data. On the example of ...

  • A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić (2012)
    This paper outlines the main features of Bibliša, a tool that offers various possibilities of enhancing queries submitted to large collections of TMX documents generated from aligned parallel articles residing in multilingual digital libraries of e-journals. The queries initiated by a simple or multiword keyword, in Serbian or English, can be expanded by Bibliša, both semantically and morphologically, using different supporting monolingual and multilingual resources, such as wordnets and electronic dictionaries. The tool operates within a complex system composed ...
    multilingual digital libraries, query expansion, TMX
    ... databases. Development of XML databases was a natural response to 1710 exponential growth of interchange and storage of data in XML format. A database that manages XML files can be directly integrated into applications (e.g. web services), without the unnecessary slowdown caused by additional ...
    ... logical units, pretty much the same way as relational databases handle rows in tables. Data in NXDs are manipulated only indirectly, by means of database and XML query languages: XQuery, XPath, XML Infoset, DOM and events from SAX 1.0. The NXDs are not expected to substitute existing databases ...
    ... eXist-db and MarkLogic, and we chose the latter as the more robust and stable platform. MarkLogic Server 5 (http://www.marklogic.com) is a database for managing, leveraging and delivering unstructured information, developed to meet today’s information management requirements. It is designed ...

  • Validation of vulnerability assessment by means of the Time Dependent, Model: case study from the Slovenian karst catchment

    Vladimir Živanović, Nataša Ravbar, Igor Jemcov (2019)
    Groundwater vulnerability assessment methods are continuously being developed and existing methods are very often modified to provide better simulation of natural protection conditions and more objective results. Most frequently used methods are based on calculation of predefined parameters influencing water infiltration and underground flow, which can often lead to bias conclusions related to vulnerability evaluations. Some other methods, like the Time Dependent Model (TDM) are based on an approach, where parametrization is obtained at the final stage of the ...
    Ocena ranjivosti podzemnih voda, karstne podzemne vode, TDM metoda, delineacija sanitarnih zona, Slovenački karst

  • Tеслапедиа као централна база библиографских података о Николи Тесли

    Ивана Ћирић, Сузана Топаловић, Биљана Лазић (2013)
    Циљ овог рада је да прикаже идеју и процес израде најкомплетније електронске библиографске базе о Николи Тесли, симболично назване Теслапедиа. Oвaквa бaзa би укључивaлa Teслину библиoгрaфиjу, кao и библиoгрaфиjу других o њeму. Сaм кoнцeпт рaзвoja Teслaпeдиe je видљив крoз двe глaвнe идeje. Првa идeja je зaснoвaнa нa пoстaвљaњу свих пoстojeћих библиoгрaфских јединица кoje Mузej пoсeдуje нa oдрeђeну вeб-лoкaциjу a другa, пoдjeднaкo вaжнa, oглeдa сe у мoгућнoстимa дaљeг рaзвoja и нaдгрaдњe сaмe структурe базе придруживaњeм нoвих библиoгрaфских пoдaтaкa. Oвa бaзa ...
    библиографије
    ... Central Database of the Bibliographic Information about Nikola Tesla Summary The purpose of this paper is to present the idea and the process of creating the most complete electronic bibliographic database of the records related to Nikola Tesla, symbolically named Teslapedia. The database would include ...
    ... the possibility of further development and upgrading the database structure joining new bibliographic data. This database makes the central part of Teslapedia, the homonymous project of the Nikola Tesla Museum. Data contained in the database were obtained from fi ve different sources. In addition to ...
    ... and signifi cant information about the life and work of Nikola Tesla. Keywords: Nikola Tesla, bibliography, Teslapedia, Nikola Tesla Museum, database, digitization, press clipping, Chronicling America, Tesla Collection Примљено: 24. септембра 2013. Исправке рукописа: 3. октобра 2013. Прихваћено ...

  • An Approach to Development of Bilingual Lexical Resources

    Stanković Ranka, Obradović Ivan, Trtovac Aleksandra (2012)
    ... checks whether a synset with these terms already exists in its database. If not, the system checks whether all terms from the newly proposed synset already exist in the database and if not, enters the missing terms in the database and generates the new synset. The next step, establishing a relation ...

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • Infotheca (Q25460443) in Wikidata

    Ranka Stanković, Lazar Davidović (2021)
    Vikipodaci su baza znanja Zadužbine Vikimedija koja predstavlja zajednički izvor različitih vrsta podataka koje koriste ne samo drugi Vikipedijini projekti, već sve više i brojne aplikacije semantičkog veba. U ovom radu ćemo prezentovati primer integracije Vikipodataka sa digitalnim bibliotekama i eksternim sistemima, kao i mogućnost ubrzanja pripreme i unosa podataka na primeru radova iz časopisa za digitalnu humanistiku Infoteka.
    semantički veb,otvoreni povezani podaci, vikpodaci,Infoteka, metapodaci časopisa
    ... For a number of years now, students at the Faculty of Mining and Geology have been undergoing training to enter data into and use the Wikidata11 database, while the In- telligent Systems doctoral course features the subjects Knowledge Represen- tation and Semantic Web that explore the potential for ...
    ... allowing better monitoring of the entire process. The examples of good practice indicate that OpenRefine is used for preparing data entry in the Wikidata database, while Infotheca Vol. 21, No. 1, September 2021 93 Stanković, R., Davidović L., Infotheca . . . in Wikidata, pp. 87–98 the actual entry of ...
    ... merge or eliminate duplicates. Additional information about it is available at this page. After the initial data entry, the input of data into the database contin- ued after each newly published issue of Infotheca. As a result, 38 Infotheca articles are now made available. An HTML integrating Wikidata ...

  • Multihazard Exposure Assessment on the Valjevo City Road Network

    Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)
    Prirodni hazardi, izloženost, klizišta, poplave, bujice, GIS, R

  • 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 ...
    ... made possible the design of a lexical database that can store a structured record of a dictionary article in a relational structure, and the development of a software solution that transforms the unstructured text of a Word document into a relational database (Stanković et al. 2018). These preliminary ...
    ... addition, they enable automatic linking of dictionary entries in the database, which was illustrated by the examples in Table 1. Moreover, definition models will enable not only automatic linking of the entries in the SASA database, but also enrichment and linking of other lexical resources for Serbian ...
    ... 124–131. Stanković, R., Stijović, R., Vitas, D., Krstev, C. & Sabo O. (2018). The Dictionary of the Serbian Academy: from the Text to the Lexical Database. In: Proceedings of the XVIII EURALEX International Congress: Lexicography in Global Contexts, Ljubljana. Ljubljana University Press, Faculty of ...