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Упит dcterms_subject_txt:Computer Science Applications

798 items

  • Social-Emo.Sr: Emotional Multi-Label Categorization of Conversational Messages from Social Networks X and Reddit

    Milena Šošić, Ranka Stanković, Jelena Graovac (2024)
    U digitalnom okruženju južnoslovenskih jezika, analiza emocija u tekstovima na društvenim mrežama postaje sve važnija za razumevanje javnog mnjenja, kreiranje personalizovanog sadržaja i analizu međusobnih interakcija korisnika. U okviru ovog rada predstavljamo detaljnu metodologiju i rezultate označavanja korpusa na srpskom jeziku prema Plutčikovom modelu kategorizacije, koji prepoznaje osam osnovnih emocionalnih kategorija, kao što su radost, tuga, bes, strah, poverenje, gađenje, iščekivanje i iznenađenje. Cilj istraživanja je da se analizira emocionalni sadržaj tekstova preuzetih sa društvenih mreža X (nekada Twitter) ...
    emocije, Plutčikov model, označavanje, korpus, društvene mreže, srpski jezik

  • The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system

    Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)
    The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...
    микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми
    ... Colloid Science, J. Lyklema (Ed.), Academic Press, New York, 2005, pp. 5.1-5.96 K.R. Wormuth, S. Zushma, Langmuir 7 (1991) 2048-2053 C. Frank, H. Frielinghaus, J. Allgaier, H. Prast, Langmuir 23 (2007) 6526-6535 K. Hill, in Alky! Polyglucosides: Technology, Properties and Applications, K. Hill ...
    ... Condens. Matter 13 (2001) 9055-9074 R. Strey, M. Brandt, B. Jakobs, T. Sottmann, in Studies in Surface Science and Catalysis, Vol. 132, Y. Iwasawa, N. Oyama, H. Kunieda (Eds.), Elsevier Science, Amsterdam, 2001, pp. 39-44 H. Endo, M. Mihailescu, M. Monkenbusch, J. Allgaier, G. Gompper, D. Richter ...
    ... “ish” diagrams. The stability of microemulsions over a large tem- perature range and low surfactant concentration is required for technical applications. Some investigat- ions [1,2] show that the use of surfactants with longer hydrophobic units reduces the amount of surfactant needed for m ...

  • Effectiveness assessment of agricultural machinery based on fuzzy sets theory

    Miodragović Rajko, Tanasijević Miloš, Mileusnić Zoran, Jovančić Predrag (2012)

  • Creation of a Training Dataset for Question-Answering Models in Serbian

    Ranka Stanković, Jovana Rađenović, Maja Ristić, Dragan Stankov (2024)
    Razvoj i primena veštačke inteligencije u jezičkim tehnologijama značajno su napredovali poslednjih godina, posebno u domenu zadatka odgovaranja na pitanja (Question Answering - QA). Dok su postojeći resursi za QA zadatke razvijeni za glavne svetske jezike, srpski jezik je relativno zanemaren u ovoj oblasti. Ovaj rad predstavlja inicijativu za kreiranje obimnog i raznovrsnog skupa podataka za obučavanje modela za odgovaranje na pitanja na srpskom jeziku, koji će doprineti unapređenju jezičkih tehnologija za srpski jezik. Pored brojnih istraživanja o jezičkim modelima ...
    veštačka inteligencija, obrada prirodnog jezika, jezički resursi, anotirani skupovi, ekstrakcija informacija, odgovaranje na pitanja

  • Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia

    Dragoljub Bajić, Dušan Polomčić (2014)
    A groundwater control system was designed to lower the water table and allow the pumping sta-tion “Bezdan 1” to be built. Based on a hydrodynamic analysis that suggested three alternative solutions, mul-ticriteria optimization was applied to select the best alternative. The fuzzy analytic hierarchy process methodwas used, based on triangular fuzzy numbers. An assessment of the various factors that influenced the selec-tion of the best alternative, as well as fuzzy optimization calculations, yielded the “weights” of the alternativesand the ...
    groundwater lowering, groundwater management scenario, fuzzy analytic hierarchy process,expert knowledge, triangular fuzzy numbers, linguistic variables
    ... correlation is thereby established between the natural language used by man and the numerical data used by a computer. In recent years there has been a rapid increase in the number and types of applications of systems based on the fuzzy theory. While it was originally used to analy- ze data that allow for partial ...
    ... develop- ment considering risk factors using fuzzy extended AHP-based approach. Omega International Journal of Management Science, 35: 417–431. CHANG, D.Y. 1996. Applications of the extent analysis method on fuzzy AHP. European Journal of Operational Research, 95: 649–655. CHANG, Y.H., CHENG, C.H ...
    ... used in the present study can be recommended for other fields of science and technology, where opti- mization is required and the best-possible decision needed. Acknowledgement Our gratitude goes to the Ministry of Education, Science and Technological Development of the Republic of Serbia for financing ...

  • Knowledge Graphs in the Era of Large Language Models: Opportunities and Challenges

    Danka Jokić, Ranka Stanković, Jelena Jaćimović (2024)
    Pojava velikih jezičkih modela (eng. Large Language Models ili LLMs) je značajno uticala na oblast veštačke inteligencije, naročito u oblastima obrade prirodnog jezika i generisanju teksta. Međutim, ključno ograničenje ovih modela leži u nedostatku strukturiranog znanja i sposobnosti zaključivanja, što otežava njihovu primenu u stvarnom svetu, gde se zahteva tačnost iznetih činjenica i zaključivanje na osnovu konteksta. S druge strane, grafovi znanja nude primamljivo rešenje. Oni pružaju bogat izvor strukturiranog znanja, tako što predstavljaju entitete i njihove relacije u ...
    grafovi znanja, veliki jezički modeli, obrada prirodnog jezika, strukturirano znanje, kvalitet podataka, objašnjiva veštačka inteligencija, bezbednost sadržaja na internetu

  • Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines

    Ugljesa Bugarić, Milos Tanasijević, Stevan Djenadić, Dragan Ignjatović, Ivan Janković (2022)
    This paper presents the model for the identification of reference points on the lifetime curve of engineering systems. This curve commonly represents the increase and decline of failure in relation to time. A direct correlation between failure rate and costs is assumed in this paper, therefore, statistical and empirical analysis of costs provided reference points. This approach is used for positioning stages of the engineering system’s lifetime with a minimal number of failures and costs, regardless of whether these ...
    Electrical and Electronic Engineering,Industrial and Manufacturing Engineering, Control and Optimization, Mechanical Engineering, Computer Science (miscellaneous), Control and Systems Engineering

  • 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
    ... n in all domains of its application. Other than indispensable intertwinement found on the crossroad between linguistics, psycholinguistics, computer science, engineering and statistics, as we go more in-depth, experts from more narrow fields are required. For example, NLP tools for language learning ...
    ... Processing, Terminology 1. INTRODUCTION Natural Language Processing (NLP) has a two-faceted approach to education where one involves e-learning and computer-assisted learning and instruction and the other consists of NLP tools for analysis and use of language by machines [1]. The usage and application ...
    ... the boom and the expansion [4]. Those stages are closely related with the development of computers. Consequently, we have different stages of computer usage, from input terminals through processing terminological data with personal computers, to the Internet expansion. The last one ensured the ...

  • Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... geological expectations. Machine learning methods have demonstrated their efficacy as a valuable tool in geological mapping, because of that, applications in ophiolite mapping could provide satisfactory results. Remote sensing techniques and satellite imagery, char- acterized by different spatial ...
    ... used to predict distinct classes in according due to their estab- lished track record of delivering reliable and robust results in similar applications, as evidenced by previous studies (Al- Rawashdeh et al. 2006). The Landsat 7 satellite image under- went essential preprocessing steps, including ...
    ... algorithm Breiman (2001) proposed and developed the Random Forest (RF) ML algorithm for regression and classification, which has widespread applications and populariıty. It has been uti- lized by numerous environmentalists and geoscientists over the past two decades to predict classes and generate ...

  • 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
    ... process- ing and information retrieval applications. RuThes-like thesauri include, besides RuThes, Sociopolitical thesaurus, Security Thesaurus, and Ontology on Natural Sciences and Technology. The RuThes format is based on three approaches for developing computer resources: Princeton WordNet, inform ...
    ... RuWordNet and compare them in their applications. Other RuThes-like resources are being prepared to publication. Acknowledgements This work is partially supported by the Russian Foundation for Basic Research (project 16-29-09606) and the Ministry of Education and Science of the Russian Federation (project ...
    ... 94 3. RuThes Family of Resources The structure of the RuThes thesaurus of the Russian language is based on three approaches for devel- oping computer resources: information-retrieval thesauri, WordNet-like thesauri, and formal ontologies. The RuThes thesaurus is created in form of a linguistic ...

  • Development of terminological resources for expert knowledge: a case study in mining

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić (2015)

  • 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
    ... libraries of e-journals. Namely, as the search in LeXimir is performed with XPath queries the documents had to be previously loaded in internal computer memory, which is not a feasible request in the case of large collections of texts. In order to realize cross-lingual search for such collections ...
    ... 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 layers for interpretation. Native XML databases (abbr. NXD) handle ...
    ... parallel texts. It is basically a front-end for two alignment tools developed by LORIA (Laboratoire lorrain de recherche en informatique et ses applications), one for automatic sentence alignment of texts (Xalign, http://led.loria.fr/outils/ALIGN/align.html), and another for alignment visualization ...

  • Managing mining project documentation using human language technology

    Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja (2018)
    Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...
    Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation

  • Valorization of non-balanced coal reserves in Serbia for underground coal gasification

    David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)
    In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...
    ugalj, gasifikacija, zaštita životne sredine, skladištenje, solarna
    ... .. THERMAL SCIENCE: Year 2019, Vol. 23, No. 6B, pp. 4067-4081 4073 be introduced into the reduction zone in special scrubbers [6], where a significant part of the exothermic reactions is taking place in terms of the extraction of CO, from the gas. There are numerous applications of the gas generated ...
    ... that are tackling: UCG applications, and especially utilization of hydrogen generated in the UCG process. Serbia possesses coal deposits with such a great potential for UCG utilization. Acknowledgment The authors would like to thank Serbian Ministry of Education, Science and Technological D ...
    ... (+15%) was extracted from the gas mixture in the scrubber, that would amount to 4.3·106 mž, which would already be interesting for indus- rial applications. Noticeably the remaining gas that is released from CO, contains significantly more powerful energy value, because CO, as well as N, are inert ...

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • Linear-motor plunger pump increases lifting efficiency

    Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev (2022)
    plunger, linear, motor, pumps

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... of injection of CO» as it was removed from its source. Today, well-drilling and injection technology, computer simulation of reservoir storage and monitoring methods from existing applications are being developed further for design and operation of geological storage. Figures 4.1 and 4.2 indicate ...
    ... and viscosity reduction for injection of immiscible fluids (at low pressures) to completely miscible displacement in high-pressure applications. In these applications, more than 50% and up to 67% of the injected CO» returns with the produced oil and recycled [67]. According to the IKFA, today's ...
    ... T. Rochelle, N. Shah, J. G. Yao, P. S. Fennell, Energy Environmental Science 2014, 7, 130—189. [22] Matter, J. et al: Rapid carbon mineralization for permanent disposal of anthropogenic carbon dioxide emissions Science Journal 2016, 352, pl312-1314. DOI: 10.1126/science.aad8132 [23] S. ...

  • Towards Semantic Interoperability: Parallel Corpora as Linked Data Incorporating Named Entity Linking

    Ranka Stanković, Milica Ikonić Nešić, Olja Perisic, Mihailo Škorić, Olivera Kitanović (2024)
    U radu se prikazuju rezultati istraživanja vezanih za pripremu paralelnih korpusa, fokusirajući se na transformaciju u RDF grafove koristeći NLP Interchange Format (NIF) za lingvističku anotaciju. Pružamo pregled paralelnog korpusa koji je korišćen u ovom studijskom slučaju, kao i proces označavanja delova govora, lematizacije i prepoznavanja imenovanih entiteta (NER). Zatim opisujemo povezivanje imenovanih entiteta (NEL), konverziju podataka u RDF, i uključivanje NIF anotacija. Proizvedene NIF datoteke su evaluirane kroz istraživanje triplestore-a korišćenjem SPARQL upita. Na kraju, razmatra se povezivanje Linked ...
    paralelni korpusi, povezivanje imenovanih entiteta, prepoznavanje imenovanih entiteta, NER, NEL, povezani podaci, NIF, Vikipodaci

  • EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School

    Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković (2021)
    Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...
    nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku
    ... Artificial Intelligence in Bucharest and the In- stitute of Computer Science in Ias , i, as well as the “Alexandru Ioan Cuza” University of Ias , i, Romania. The training school was attended by 82 participants. KEYWORDS: linguistic data science, linked data for linguistics, language data, NexusLinguarum ...
    ... school. The results have shown that the disciplines of the humanities/linguistics/lexicography had a higher representation among participants than computer science, and that the school was well-focused, well-balanced topic-wise and well organized. Theory sessions, tutoring, and the opportunities to learn ...
    ... All the materials were published online and made available for free. 4 Summary The training school provided valuable knowledge and trained many computer scientists and linguists on how to work with and benefit from linguistic linked data. This was the first training school organized by the NexusLinguarum ...

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... ained/carbon-capture/ http://dx.doi.org/10.1155/2014/828131 https://www.energy.gov/fe/science-innovation/carbon-capture-and-storage-research/carbon-capture-rd/pre-combustion-carbon https://www.energy.gov/fe/science-innovation/carbon-capture-and-storage-research/carbon-capture-rd/pre-combustion-carbon ...
    ... solubility depends on presure and temperature, and it will increase with the increase of pressure and decrease of temperature. This procedure has many applications such as: in natural gas processing, in separation of CO2 from synthesis gas which is used in the production of hydrogen, ammonia, and methanol ...
    ... Sopian, K. OVERVIEW OF CARBON DIOXIDE SEPARATION TECHNOLOGY, Proceedings of the IA STED International Conference, Power and Energy Systems and Applications (PESA 2012), Las Vegas, USA, November 12 - 14, 2012. Doi: 10.2316/P.2012.788-067. 22. Yu, C.H.; Huang, C.H.; & Tan, C.S. A Review of CO 2 Capture ...