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Упит dcterms_subject_txt:Lexical Representation

123 items

  • Дигиталне библиотеке у рударству и геологији са посебним освртом на представљање сиве литературе

    Биљана Лазић, Александра Томашевић, Михаило Шкорић (2019)
    Имајући у виду потребу за проналажењем информација похрањених у различитим облицима документације која се генерише у областима рударства и геологије на Рударско-геолошком факултету Универзитета у Београду, отпочет је процес развоја дигиталне библиотеке ROmeka@RGF, на платформи за приказивање дигиталних колекција - Омека. Значајан део документације представља такозвана сива литература која је претежно заступљена у виду вишетомне документацијe. Први савладани изазов представљало је повезивање различитих вишетомних делова пројектних извештаја у једну целину која би била лако доступна и претражива.
    дигиталне библиотеке, сива литература, Омека, језички ресурси, речници
    ... Information Studies. Amsterdam: Walter de Gruyter, 2010. 1-9. Krstev, Cvetana, Ranka Stanković, Duško Vitas, Ivan Obradović. “The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines”. Sixth International Conference on Language Resources and Evaluation (LREC ‘08) ...
    ... textual, numerical, graphical and cartographical contents. In order to solve the above-mentioned problems we used a platform for digital objects representation. Special attention will be given to relational dictionaries which are designed to define document relations. We will also present some language ...

  • Smanjenje sleganja plitkih temelja primenom mikrošipova

    Slobodan Ćorić, Dragoslav Rakić (2021)
    Mikrošipovi su šipovi malog prečnika koji se grade tako što se u tlu specijalni postupkom formira bušotina koja se zatim armira i injektira. Njihov prečnik je najčešće 150 – 300 mm, a dužina može da bude i više desetina metara. Mikrošipovi mogu da se grade u svim vrstama tla i mogu da budu vertikalni i kosi. Oni se, stoga, koriste kao zamena za konvencionalne šipove i ankere. Primena mikrošipova u fundiranju predstavlja jedan savremeni način izgradnje i sanacije temelja/objekata. ...
    mikrošipovi, sleganje plitkih temelja i mikrošipova, krutost tla i mikrošipova

  • Using Metadata For Content Indexing Within An OER Network

    Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci (2014)
    ... Environment. In Proceedings of The Third International Conference on e-Learning (eLearning- 2012), Belgrade, Serbia, 2012. [17]Bag-of-words representation of text, https://inst.eecs.berkeley.edu/~ee127a/book/login/exa _bag_of_words_rep.html the academia and the enterprise. It thus contributes ...
    ... Learning Environment. In Proceedings of The Third International Conference on e-Learning (eLearning- 2012), Belgrade, Serbia, 2012. [17] Bag-of-words representation of text, https://inst.eecs.berkeley.edu/~ee 127a/book/login/exa _bag_of_words_rep.html ...

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    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 ...
    hybrid systems, mine ventilation, expert systems
    ... represent interface forms for entering, viewing and searching the data, a form for drawing the ventilation system linear scheme, a form for graphical representation of results and a form for communication with other packages within the hybrid system INVENTS. These classes communicate with classes from the ...

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    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 ...
    ... represent interface forms for entering, viewing and searching the data, a form for drawing the ventilation system linear scheme, a form for graphical representation of results and a form for communication with other packages within the hybrid system INVENTS. These classes communicate with classes from the ...

  • Fuzzy Model for Risk Assessment of Machinery Failures

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...
    fazi teorija, rizik, otkaz rudarskih mašina
    ... system (for the main computer). Rmain computer = (1/0, 2/0, 3/0, 4/0, 5/0.65, 6/0.65, 7/0.65, 8/0.65, 9/0, 10/0), Figure 12 shows a graphical representation of the fuzzy sets of the risk level for the main computer. Symmetry 2020, 12, 525 19 of 26 Figure 12. Membership functions of the risk level ...
    ... elements of each individual subsystem. Figure 13. Fuzzy set for a failure risk assessment of the “electrical” subsystem. Figure 14. Graphical representation of the risk level assessment for the crushing machine subsystems. Table 13. Failure risk assessment for subsystems of the crushing machine. Subsystem ...
    ... for the failure risk of the entire engineering system of the mobile crushing machine was obtained: R = (1/0, 2/1, 3/1, 4/1, 5/0). A graphical representation of the fuzzy set of the failure risk of the mobile crushing machine is shown in Figure 15. Figure 15. Fuzzy set of the failure risk of the mobile ...

  • Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes

    Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović (2016)
    menadžment, rudrastvo i energetski kompleksi, okruženje, održivi razvoj, mrežno planiranje
    ... losses. System analysis based on a simulation of discrete events (representation of the real state of the environmental system, stochastic parameters) and continuous simulation (representation of changes or operations, with a representation of cause-and-effect relationships between elements) requires the ...
    ... Technique—Critical Path Method (CPM) A network planning technique is a good starting point for project management, definition of activities, and representation of the logical structure. Application of the Critical Path Method (CPM) and precisely defined activity durations allow the creation of project ...

  • Development Of The Serbian Geological Resources Portal

    Ranka Stanković, Jelena Prodanović, Olivera Kitanović, Velizar Nikolić (2011)
    ... applications which consume them. Further steps encompass the creation of a lexicon of mapped units, and integration of the dictionary and cartographic representation of spatial objects in which they appear. Further publication of results of both recent, as well as older projects is planned in the upcoming period ...

  • Analysis and visualization of geophysical well-logging data from closely spaced boreholes

    Branislav Sretković, Ivana Vasiljević, Dimitry Sidorov - Biryukov (2024)
    Geophysical logging measurements for determining the condition of the rock mass on the dam profile and locating the predisposed directions of water circulation and loss from the reservoir were conducted in four boreholes distributed at a close distance. The survey was carried out in a typical karst terrain, which is an additional challenge for defining the geological model, especially in terms of water retention. That kind of data set provides an excellent opportunity for a new approach to analysis ...
    well-logging in karst, water loss, data correlation, data fusion
    ... diagrams were digitized, data along the borehole line was filtered and then the data of the individual logs were interpolated to obtain a 2D representation of the results (Fig. 1). Well logging curves are shown on the left and obtained maps on the right. 'Then, the numerical correlation of pairs ...

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... remediation and reclamation. Regardless of the group and the state of reserves, data collection is needed, as well as their systematization and representation in appropriate databases. From the legislative and legal point of view two subgroups can be distinguished within the first group, namely: (a) ...
    ... Abandoned facilities, Directories, Statistics, Reports. Handling of all datasets takes place in a similar way: the first page features a tabular representation of the data set with the possibility of search, that is, filtering according to given criteria. The level of access to data and the possibilities ...

  • 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 ...
    ... carries information about the lexeme belonging to a wider lexical-semantic group, and a lower-ranking seme, which carries information about individual characteristics of a lexeme, based on which one lexeme differs from another in the same lexical-semantic group. The basic types of lexicographic definition ...
    ... dictionary were used to model different definition types (descriptive, grammatical, reference-based and synonym-based) having different syntactic and lexical features. The research corpus consists of 61,213 definitions of nouns, which were analysed using Serbian morphological e-dictionaries and local grammars ...
    ... focused our present research on the extraction of the sentences contained in the definition. The extraction also implies recognition of paradigmatic lexical relations, e.g. synonyms, antonyms, hypernyms, hyponyms. The problem of automatic extraction of definitions from the text has not been thoroughly ...

  • 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

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Application of machine learning for diagnosing the operation of a deep well pump in oil production

    Maja Trikić (2024)
    This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.
    deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost
    ... 1-D.Another common variation for shape representation arises from calculating the centroid using the following equations: x= X; (8) 52 A () _1%N-1 c=yŽi=1 Ji After calculating the centroid, it is possible to use x,and y-to create a new representation of the contour, according to equation ...
    ... equation (10). z(k) — (Xx — X-) + j(yk — y-) (10) A common boundary-based shape descriptor is the Fourier descriptor. With this representation, according to equation (10) and using the discrete Fourier transform (DET), it is possible to compute the Fourier descriptors of the contour using equation ...
    ... can change after rotation. This is the case with charts showing leakage from a moving valve at a stationary valve. In the frequency domain representation of the signal, peaks will indicate which frequencies are most dominant. The higher and clearer the peak, the more represented the frequency ...

  • Palaeoflora of Kamenica (Pranjani Basin, western Serbia)

    Zorica Lazarević, Ljubica Milovanović, Jelena Milivojević, Ivana Vasiljević (2019)
    Palaeofloras of the Paleogene in Serbia are relatively rare, especially in comparison with floras from Neogene sediments. Most Paleogene phytoas sociations from the territory of Serbia existed in a dry and warm climate. The youngest Paleogene phytoassociation originates from the Pranjani Basin (Western Serbia), locality Kamenica. The age of this palaeoflora is determined as Late Oligocene. This fossil plant assemblage is different from other Paleo gene phytoassociations.The palaeoflora from Kamenica is characterized with leaf imprints larger than in other ...
    макрофлора, млађи олигоцен, Прањански басен, Каменица
    ... subtropical- tropical, humid character of the climate. Palaeoveg- etation of Kamenica is distinguished from the early Miocene floras by a rare representation of Daphno- gene and lower proportion of elements of evergreen broad-leaved vegetation. Conclusions Palaeofloras of the Paleogene in Serbia are ...

  • Using Lexical Resources for Irony and Sarcasm Classification

    Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković (2017)
    The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...
    ... l- edge representation and reasoning; Semantic networks; Natural lan- guage processing; Lexical semantics; KEYWORDS Computational irony, Verbal irony, Verbal Sarcasm, WordNet ACM Reference format: Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, and Ranka Stanković. 2017. Using Lexical Resources ...
    ... Using Lexical Resources for Irony and Sarcasm Classification Full Paper Miljana Mladenović Milenijum III Vranje, Serbia ml.miljana@gmail.com Cvetana Krstev University of Belgrade, Faculty of Philology Belgrade, Serbia cvetana@matf.bg.ac.rs Jelena Mitrović University of ...
    ... geolo- cation restriction allowed us to also find tweets mostly written in the BCMS languages. We developed a language tweet classifier that relies on lexical resources. Although resources we are using were developed for Serbian primarily, their development was based on traditional re- sources and texts covering ...

  • Using English Baits to Catch Serbian Multi-Word Terminology

    Cvetana Krstev, Branislava Šandrih, Ranka Stanković (2018)
    In this paper we present the first results in bilingual terminology extraction. The hypothesis of our approach is that if for a source language domain terminology exists as well as a domain aligned corpus for a source and a target language, then it is possible to extract the terminology for a target language. Our approach relies on several resources and tools: aligned domain texts, domain terminology for a source language, a terminology extractor for a target language, and a ...
    aligned texts, word alignment, terminology extraction, electronic dictionaries, morphological inflection
    ... and German). In (Ananiadou et al., 2012) lexical resources for En- glish obtained grades 4.5–6 for all seven criteria, avail- ability rated as excellent (the highest grade 6). To the contrary, the similar survey for Serbian (Vitas et al., 2012) showed that lexical resources are much less de- veloped – they ...
    ... and Wintner, 2010) or to help developing certain lexical resources in the tar- get language on the basis of the existence of such resource in the source language (e.g. used for the Slovenian Word- Net (Vintar and Fišer, 2008)). In some cases, no lexical resources are used (Bouamor et al., 2012), while ...
    ... explored different ways of utilizing existing lexical re- sources to improve the quality of statistical machine align- ment. In order to do that we have augmented the set of aligned sentences with inflected forms (English/Serbian). We have used two bilingual lexical resources. (a) Serbian Wordnet (SWN) (Cvetana ...

  • Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin

    Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović (2014)
    menadžment podzemnih voda, monitoring, kvalitet podzemnih voda, bilans, baza podataka

  • Softverski alati za korišćenje resursa za srpski jezik

    Ivan Obradović, Ranka Stanković (2008)
    ... which could be used in psycholinguistic research projects. PWN, the lexical data base that materializes the semantic network of concept for English, is based on the SOFTWARE TOOLS FOR SERBIAN LEXICAL RESOURCES 46a representation of each concept by a set of synon- ymous word-sense pairs that represent ...
    ... description of lexical resources for Serbian, in Section Three the main functionalities of the WS4LR tool, and in Section Four some possibilities offered by the web application WS4QE. 2 Lexical resources In this Section we will give a brief descrip- tion of some of the most important lexical re- sources ...
    ... srpski jezik;Software tools for Serbian lexical resources Ivan Obradović, Ranka Stanković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Softverski alati za korišćenje resursa za srpski jezik;Software tools for Serbian lexical resources | Ivan Obradović, Ranka ...

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... Abandoned facilities, Directories, Statistics, Reports. Handling of all datasets takes place in a similar way: the first page features a tabular representation of the data set with the possibility of search, that is, filtering according to given criteria. The level of access to data and the possibilities ...