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Упит dcterms_subject_txt:neural networks

117 items

  • Analysis and Calculation of MMRS and Primary Gas Distribution Network in Urban Environment – Case Study Kučevo

    Aleksandar Madžarević, Pavle Janković (2022)
    Oblast primene prirodnog gasa je veoma široka. Kao energent može se koristiti za proizvodnju energije u elektranama, toplanama i postrojenjima za kombinovanu proizvodnju energije ili za zadovoljavanje različitih toplotnih potreba u industriji i širokoj potrošnji. Gas se može upotrebiti i kao sirovina u hemijskoj i petrohemijskoj industriji, a tokom poslednjih decenija nalazi primenu i u saobraćaju kao pogonsko gorivo u SUS motorima. Sa ekološkog stanovišta, prirodni gas predstavlja najprihvatljiviji izvor energije u poređenju sa drugim fosilnim gorivima. Pri sagorevanju ...
    distribucija gasa, projektovanje gasovoda, analiza potrošnje

  • Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements

    Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović (2020)
    The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...
    Pogon rotornog točka, habanje, rezni elementi, ANFIS

  • Assessments of effects of implementation of strategic plans for development of Belgrade District heating system

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić (2020)
    The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...
    Daljinsko grejanje, LEAP, Primarni energetski faktor, Uvozna zavisnost, CO2 emisija

  • A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian

    Danka Jokić, Ranka Stanković, Cvetana Krstev, Branislava Šandrih (2021)
    Uvredljivi govor na društvenim medijima, uključujući psovke, pogrdni govor i govor mržnje, dostigao je nivo pandemije. Sistem koji bi bio u stanju da detektuje takve tekstove mogao bi da pomogne da internet i društveni mediji postanu bolji virtuelni prostor sa više poštovanja. Istraživanja i komercijalna primena u ovoj oblasti do sada su bili fokusirani uglavnom na engleski jezik. Ovaj rad predstavlja rad na izgradnji AbCoSER-a, prvog korpusa uvredljivog govora na srpskom jeziku. Korpus se sastoji od 6.436 ručno označenih ...
    uvredljivi jezik, govor mržnje, srpski, tviter, leksikon, korpus
    ... Introduction 1.1 Motivation and research background With the development of the Internet and the increasing use of online mass media and social networks, detection of inappropriate content and incitement to violence have gained importance. The concept of abusive speech, in the context of this paper ...
    ... and even suicide [12]. As far as Serbian law is concerned, any discrimination, endangering security, persecution, insults, and harassment on social networks are punishable [26, 4, 30]. Hate speech and flames are present in Serbian media and public discourse especially towards the LGBT population, Roma ...
    ... all types of online platforms where an increasing amount of user-generated content appears: from comments on the web news portals, through social networks, to chats on real-time games [37]. Users are usually expected to report abusive speech, and then the site or social network moderators manually review ...

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...
    ... of queries. Search results can be substantially improved by using various lexical resources, such as morphological dictionaries and semantic networks. The outlined approach may be used within the System of scientific, technical and business information. Efficient exploration of such a valuable ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ...  35–41. (на енглеском)  11. Andriyashev, M.M. 1964. Hydraulics calculation of water distribution networks.  Stroizdat, Moscow (на руском)  12. Aydinalp‐Koksal, M., Ismet Ugursal, V. 2008. Comparison of neural network, conditional  demand analysis, and engineering approaches for modeling end‐use energy  ...
    ... hydraulically  and  economically.  Critical  path  analysis  for  optimizing branched pipe networks and  implementation of  the  finite element method can be done  for  branched  networks.  For  looped  networks,  however,  techniques  that  are more  powerful  are  required.  Algorithms have been de ...
    ... s method applied on looped spatial  natural gas distribution networks. Applied Energy 86(7‐8), 1290‐1300. (на енглеском)  56. Brkić, D. 2009g. Similarities and Differences in Optimization of Water‐ and Gas‐  Distribution Pipeline Networks, Dubrovnik Conference on Sustainable Development of  Energy, ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ...  35–41. (на енглеском)  11. Andriyashev, M.M. 1964. Hydraulics calculation of water distribution networks.  Stroizdat, Moscow (на руском)  12. Aydinalp‐Koksal, M., Ismet Ugursal, V. 2008. Comparison of neural network, conditional  demand analysis, and engineering approaches for modeling end‐use energy  ...
    ... hydraulically  and  economically.  Critical  path  analysis  for  optimizing branched pipe networks and  implementation of  the  finite element method can be done  for  branched  networks.  For  looped  networks,  however,  techniques  that  are more  powerful  are  required.  Algorithms have been de ...
    ... s method applied on looped spatial  natural gas distribution networks. Applied Energy 86(7‐8), 1290‐1300. (на енглеском)  56. Brkić, D. 2009g. Similarities and Differences in Optimization of Water‐ and Gas‐  Distribution Pipeline Networks, Dubrovnik Conference on Sustainable Development of  Energy, ...

  • 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
    ... production for SerWN was increased. There is also space for further improvement of this approach to wordnet enrichment. 1. Introduction Semantic networks, such as wordnets, are among the most important resources in Human Language Technologies. Thus, for example, the Princeton WordNet - PWN (Fellbaum ...
    ... TACL, 1:151–164. Mladenović, M. and Mitrović, J. (2014). Natural Language Processing for Serbian – Resources and Application, chapter Semantic Networks for Serbian: New Functionalities of Developing and Maintaining a WordNet Tool. University of Belgrade, Mathematical Faculty. Mladenović, M., Mitrović ...
    ... exploitation and evaluation of parallel corpora: TC3 I: TC3 I, 3. Vossen, P. (1998). EuroWordNet: A Multilingual Database with Lexical Semantic Networks. Kluwer Academic Publishers, Norwell, MA, USA. Proceedings of CLIB 2018 114 ...

  • A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment

    Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others (2020)
    Aligning senses across resources and languages is a challenging task with beneficial applications in the field of natural language processing and electronic lexicography. In this paper, we describe our efforts in manually aligning monolingual dictionaries. The alignment is carried out at sense-level for various resources in 15 languages. Moreover, senses are annotated with possible semantic relationships such as broadness, narrowness, relatedness, and equivalence. In comparison to previous datasets for this task, this dataset covers a wide range of languages ...
    lexical semantic resources, sense alignment, lexicography, language resource
    ... further advances in alignment and evaluation of word senses by creating new solutions, particularly those notoriously requiring data such as neural networks. Our resources are publicly available at https://github.com/elexis-eu/MWSA. Keywords: lexical semantic resources, sense alignment, lexicography ...
    ... 2005; Ponzetto and Navigli, 2010; Gurevych et al., 2012). Given the current progress of artificial intelligence and the usage of data to train neural networks, annotated data with specific features play a crucial role to tackle data-driven challenges, particularly in NLP. In recent years, a few ef- ...
    ... lexicographic data from expert-made dictionaries. We believe that our datasets will pave the way for further developments in exploring statisti- cal and neural methods, as well as for evaluation purposes. The rest of the paper is organized as follows: we first de- scribe the previous work in Section 2. After ...

  • 3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia

    Saša Milanović, Zoran Stevanović, Ljiljana Vasić, Vesna Ristić-Vakanjac (2013)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude

    Ivana M. Jovanović (2016-01-13)
    U oblasti procesa prerade rude, flotacijska koncentracija predstavlja jednu od najznačajnijih i najčešće primenjivanih metoda separacije korisnih od nekorisnih minerala. Samim tim, veoma je važno osigurati uspešan rad flotacijskog postrojenja kroz dostizanje zadovoljavajućih tehno-ekonomskih pokazatelja. Cilj upravljanja procesom flotacijske koncentracije je upravo optimizacija kvaliteta i iskorišćenja korisne komponente u koncentratu uz maksimizaciju profita. Shodno tome, istraživanja na polju modelovanja i upravljanja ovim procesom zauzimaju značajno mesto u praksi kontolnog inženjenringa.Teorijska istraživanja u okviru doktorske disertacije obuhvatila su analizu položaja ...
    flotacijska koncentracija, modelovanje, upravljanje, inteligentni sistem, soft kompjuting, fazi logika, veštačke neuronske mreže
    ... flotation froth surfaces by using digital image analysis and neural networks. Chemical Engineering Science 50 (22), pp. 3501–3513 192. Moolman, D.W., Aldrich, C., Van Deventer, J.S.J., 1995b. The analysis of videographic process data with neural nets. Acta Chimica Slovenica 42 (1), pp. 137–142. 193 ...
    ... prediction of pilot plant flotation column concentrate by a hybrid neural genetic algorithm. International Journal of Mining Science and Technology 23, pp. 69–77 206. Nakhaei, F., Irannajad, M., 2013a. Comparison between neural networks and multiple regression methods in metallurgical performance modeling ...
    ... processes such as froth flotation. From the standpoint of process technology, the most commonly used soft computing techniques are artificial neural networks, fuzzy logic and support vector machines, while genetic algorithms are mainly applied to optimize the flotation circuit configuration. However ...

  • Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability

    Marija Živković, Dejan Ivezić (2021)
    Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...
    рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија
    ... the projection of the future state of district heat- ing systems, the heating area and efficiency of the build- ings, district heating plants and networks are assumed to be the same as in the reference year. Thus, load curves of DH systems would have unchanged shapes, while values of indicators in ...
    ... centralized supply systems are not utilized. The average efficiency of heat production (boilers) is 83.5%, while heat losses in the district heating networks are approximately 15% (Association of Serbian district heating companies 2018) (PU Beogradskeelektrane 2018). Energy consumption in district heating ...
    ... In order to make results of the key performance indicators comparable, it was assumed that the heating area, the efficiency of buildings, and DH networks would be the same as in the base year. The obtained structure of energy sources in Serbian DH systems, in that case, is presented in Fig. 6, while ...

  • Hibridni sistem za planiranje i analizu ventilacije rudnika

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilacija rudnika, informacioni sistemi
    ... MATHEMATICAL DEFINITION OF COMPLEX VENTILATION NETWORKS Characteristics of Mine Ventilation Networks……………………………………………99 Main Characteristics of Network Topography Aerodynamic Resistance of Ventilation Network Branches Defining Mine Ventilation Networks………………………………………………………109 Ventilation Network Matrixes ...
    ... Package for Modeling Climate Conditions in Complex Mine Ventilation Networks……………………………………………………..228 CHAPTER 7 MODELING OF FIRE IN COMPLEX VENTILATION NETWORKS Elements of a Model for Fire Incidence in Complex Ventilation Networks…….…238 Introductory Remarks The Global Simulation Model Methodology ...
    ... into possibility of optimizing air distribution in mine ventilation networks“, XIX SYM-OP-IS , Zbornik radova str. 325-328, Beograd, (1992). 47. LILIĆ N., KUZMANOVIĆ D., “Optimization of air distribution in mine ventilation networks“, Yugoslav Journal of Operations Research 4, Number 1, str. 105-113 ...

  • 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
    ... be useful. The main idea of this research is to use data mining methods for retrieval of metadata – in shape of determiners, that users of social networks inadvertently use in their messages (in the form of emoti- cons or language-universal phrases) and assigning values of sentiment polar- ity to terms ...
    ... method of survey which was conducted on the internet platform Google forms, which people were able to access through hyperlinks published on social networks or passed from the other participants. Respondents were tasked with asigning values between 0 and 10 to a set of chosen emoticons and phrases, where ...
    ... from the ASCII character set. The reason this is optional is that it introduces nearly as many problems as it resolves. Assuming that not all social networks users use the full ca- pacity of Unicode character set, but also cropped Latin6, a problem occures where strings istraživanje (research) and istazivanje ...

  • Projekcija razvoja osmatračke mreže podzemnih voda u Republici Srbiji

    Petar Dokmanović, Zoran Stevanović, Saša Milanović, Bojan Hajdin, Vesna Ristić-Vakanjac, Veljko Marinović (2016)
    ... 1/Accordance with relevant national and EU legislations 2/Inclusion of: a)the existing RHMS network as well as a part of wells in regional monitoring networks b)registered „direct users“ of GW sources in Republic of Serbia (RS) c)significant untapped springs i.e. new monitoring wells, in „uncovered“ GW ...
    ... network of RHMS 3/Actual GW quality monitoring network, under the competence of Republic Environment Protection Agency (SEPA) 4/Regional monitoring networks of public enterprises „Djerdap“ and „Vode Vojvodine“ 5/Data derived from the study „Research, optimal use and sustainable management of GW resources ...

  • Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations

    Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović (2024)
    Monitoring Network, data, hydrogeological environment, tunnel, simulation

  • Keyword Extraction from Parallel Abstracts of Scientific Publications

    Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić (2017)
    ... weighted network. An individual network is constructed separately for each Serbian and for each English text. More preciously, from all the constructed networks, we rank the nodes according to the highest in/out-selectivity values above a threshold greater than 1, as proposed in [8]. Therefore, we obtain two ...
    ... 661–670. ACM, New York (2009) 23. Lahiri, S., Choudhury, S.R., Caragea, C.: Keyword and keyphrase extraction using centrality measures on collocation networks (2014). http://arxiv.org/pdf/1401. 6571.pdf https://doi.org/10.1007/978-3-319-53640-8_11 https://doi.org/10.1007/978-3-319-53640-8_11 https://doi ...

  • A bilingual digital library for academic and entrepreneurial knowledge management

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić (2015)
    A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...
    Knowledge management, Digital library, Multilingualism, Language Resources, Terminology
    ... as data mining, text mining, content management, search engines, spidering programs, natural language searching, linguistic analysis, semantic networks, knowledge extraction, etc. should be a part of recent developments in knowledge management systems. DL researchers have a need to transform ...
    ... and refine users’ queries. The query expansion is supported by e-dictionaries (Serbian morphological e-dictionaries), general purpose semantic networks (English and Serbian WordNets) and domain terminological bases and ontologies. A Dictionary of Library and Information Sciences1 is a terminology ...

  • Wordnet Development Using a Multifunctional Tool

    Ivan Obradović, Ranka Stanković (2007)
    In this paper we present a multifunctional tool for manipulating heterogeneous language resources. The tool handles electronic dictionaries, wordnets and aligned texts, and provides for their synchronous use in various tasks. We focus here on the description of the possibilities this tool offers in the development of wordnets. Besides the wordnet module which enables parallel handling of two wordnets, other modules, such as the module for morphological dictionaries and the module for aligned texts, as well as available finite ...
    Wordnet development, language resource integration, HLT tools
    ... 325-328, 2006. [10] C. Krstev, I. Obradović, D. Vitas. Developing Balkan specific concepts within BalkaNet - a multilingual database of semantic networks, Proceedings of the Fifth International Conference Formal Approaches to South Slavic and Balkan Languages, Sofia, Bulgaria, October 2006, S. Koeva ...
    ... Publishing house of the Romanian academy, Vol. 7, No.1-2, 2004. [14] P. Vossen, (ed.). EuroWordNet: A Multilingual Database with Lexical Semantic Networks, Dordrecht, Kluwer Academic Publishers, 1998. [15] P. Vossen, Introduction to the Special Issue on the BalkaNet Project. Romanian Journal of ...

  • Serbian NER&Beyond: The Archaic and the Modern Intertwinned

    Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić (2021)
    U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...
    ... developed and made publicly available a Named Entity Recognizer (NER) trai- ned to recognize 7 different named enti- ty types, with a Convolutional Neural Ne- twork (CNN) architecture, having F1 score of ≈91% on the test dataset. This model has been further assessed on a separate eva- luation dataset ...
    ... prisluživati rakiju i kafu.”,12 ‘entities’: [(0, 10, ‘PERS’), (39, 44, ‘ROLE’), (86, 91, ‘ROLE’)] The spaCy v3.0 enables specification of cu- stom neural network architecture within a sim- ple text file. Using the quick-start widget,13 user can easily set up the default setting confi- guration. In our ...
    ... of the NTCIR-15 Conference. Ranka Stanković, Branislava Šandrih, Cvetana Kr- stev, Miloš Utvić, and Mihailo Škorić. 2020. Machine Learning and Deep Neural Network- Based Lemmatization and Morphosyntactic Tag- ging for Serbian. In Proceedings of the 12th Lan- guage Resources and Evaluation Conference, ...