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Упит dcterms_subject_txt:well-logging in karst

1997 items

  • A Lexical Approach to Acronyms and their Definitions

    Cvetana Krstev, Duško Vitas, Ranka Stanković (2015)
    In this paper we present a comprehensive approach to acronyms for Natural-Language Processing (NLP) of Serbian texts. The proposed procedure includes extraction of acronyms and their definitions that are usual Multi-Word Units (MWUs), shallow parsing of MWUs that enables MWU lemmatization and production of entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions.
    ... other languages as well: Greek (Tsimpouris et al., 2014), Hebrew (Jacobs et al., 2014), and Portuguese (Ranchhod et al., 2004). In the context of the previous research briefly pre- sented, our approach is situated as follows: we are working with general texts written in Serbian, in which we are look- ...
    ... Acronyms, much as other words in Serbian, are charac- terized by grammatical categories of number and gender, and they may inflect in case. The inflection is expressed by inflectional endings added after a hyphen. However, according to the Serbian orthography as well as practice the inflection is ...
    ... some lemmas should be in plural, adjectives are usually in a definite form, etc. There- fore, this output has to be corrected. Actually, correction graphs have basically the same form as graphs we used be- fore, only the input is different and the used e-dictionaries as well. For the same example ...

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... assigend by editors of OER development should be well planned and done in collaboration with industry, wider community and some specific subjects who are interested in using the resources. In Serbia the same stakeholder groups are recognized as in McGill (2008): • The global community • The ...
    ... 1 gives well known platforms in Serbia for OER according learner/teacher could examine curriculum and teaching methodology. Table 1. OER well known platforms in Serbia Name of platform Address 1. Open educational resources http://oer.rs/resursi/ 2. Khan academy Serbia https://www.youtube ...
    ... Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Chapter # - will be assigend by editors OPEN EDUCATIONAL RESOURCES IN SERBIA AUTHOR(s) - Ivan Obradović, Ranka Stanković, Marija ...

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... industrial clays obtained in Serbia in the last 60 years. The differences in the approach to the problem of reporting (classifi- cation and categorization of reserves/resources) and the degree of geological exploration level will be presented here, as well as the relationship in practice between Serbian ...
    ... reserves and occasionally included in the geological report. In most cases, when IMR are explored this is sufficient to express those reserves as inferred resources, particularly in relatively homogeneous sedimentary environments and well ex- posed mineral deposits. However, in some cases formal correlation ...
    ... mineral deposits. The most important improvements in legislation in the last twenty years are presented and discussed, as well as problems that still need to be solved and solutions found to fully understand the potential of industrial minerals and rocks in Serbia. Keywords: industrial clays; legal framework; ...

  • Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities

    Cvetana Krstev, Ranka Stanković, Aleksandra Marković, Teodora Mihajlov (2024)
    Овај рад представља активности на развоју корпуса ELEXIS-sr, српском додатку вишејезичном анотираном корпусу ELEXIS-а, који се састоји од семантичких анотација и репозиторија значења речи. ELEXIS је паралелни вишејезични анотирани корпус на десет европских језика, који може да се користи као вишејезички репер за евалуацију европских језика са мање и средње развијеним ресурсима. Фокус овог рада је на вишечланим изразима и именованим ентитетима, њиховом препознавању у скупу реченица ELEXIS-sr и поређењу са анотацијама на другим језицима. Разматрају се први кораци ...
    полилексемске језинице, именовани ентитет, вишезначност значења речи, складиште смисла, LLOD

  • Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics

    Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić (2024)
    Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...
    Lecki vulkanski kompleks, andeyit, kalcedon, kvarc, opal-CT, mikrostruktura, organska materija

  • Business Models for Small-scale Biomass Projects Development

    Dejan Ivezić, Miodrag Gluščević, Marija Živković (2019)
    Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...
    ... chips for utilization in boilers and/or cogeneration plants (depending on the selected solution). Certainly, local households, individually or jointly in a cooperative or other legal entity, should not have preferential treatment in the public procurement procedure. However, it is well known that transport ...
    ... interests. In the concrete case, this model means association of Kostojevići’s citizens in energy cooperative. Energy cooperative could be an initiator, investor and project implementer, as well as biomass supplier and biomass plant operator. The scheme of functioning of this business model is shown in Figure ...
    ... models will be analyzed, as well as the ability of their implementation for each of proposed technical solution, with a special emphasis to ability of local community and citizens to be involved in biomass supply chain. Acknowledgements The investigations and results presented in paper were supported by ...

  • The state and perspective of the natural gas sector in Serbia

    Dejan Ivezić, Marija Živković, Dušan Danilović, Aleksandar Madžarević, Miloš Tanasijević (2016)
    The strategy of long-term energy development of Serbia identifies an increase of share of natural gas in final energy consumption as one of the main aims. Serbia has signed a strategic agreement with the Russian Federation on cooperation in the oil and gas sector, within which the project South Stream pipeline is planned to be realized. In addition, the Republic of Serbia has signed the Treaty that establishes the Energy Community and accepted the obligation to implement the Energy ...
    Consumption, natural gas, scenarios of development

  • An Approach to Efficient Processing of Multi-Word Units

    Cvetana Krstev, Ivan Obradović, Ranka Stanković, Duško Vitas (2013)
    Efficient processing of Multi-Word Units in the course of development of morphological MWU dictionaries is not easy to achieve, especially when languages with complex morphological structures are concerned, such as Serbian. Manual development of this type of dictionaries is a tedious and extremely slow process. To alleviate this problem we turned to our multipurpose software tool, dubbed LeXimir, in the production of lemmas for e-dictionaries of multi-word units. In addition to that, we developed a procedure aimed at making ...
    Natural Language Processing, Grammatical Category, Lexical Representation, MWU, multi-word unit
    ... a noun, which in Serbian is the natural order of an adjective and a noun in a MWU. However, these MWUs, together with a few more allow a reverse order as well — zvezda petokraka and stepen Farenhajtov. Both MWUs can be used in plural form. In Serbian, adjectives and nouns inflect in number and case ...
    ... were produced for Serbian as well [10]. Other contiguous MWUs that are idiosyncratic in nature, namely nouns and adjectives, have to be lexically described in a similar way as simple words. In the computational lexicography school led by Maurice Gross, the interest in MWUs and the production of m ...
    ... that the first is an adjective in the nominative case and the second component is a noun in the nominative case as well, and these two com- ponents agree in gender and animacy, then the additional conditions are checked, and at least one of them needs to be satisfied. In this case it means that one of ...

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija

  • 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) ...
    ... it entails usage of a word in the way that is opposite of the presumed meaning.1 In that regard we can say that ironic statement is the one where: (1) the receiver, apart from the sender, knows in advance which statement is true2 (which sets irony apart from a lie), as well as that it is opposite of the ...
    ... being investigated. For example, authors in [31] used a corpus of tweets in Portuguese and patterns specific to the Portuguese language so que, sim, na boa, as well as language inde- pendent ones, like (ADV +ADV |AD J+AD J )3 and (!∗ |?∗ |!∗?∗ |?∗!∗). Authors in [8] propose eight patterns out of which ...
    ... on traditional re- sources and texts covering to certain extent other related languages as well, making them suitable for this task. A language classifier was built and assessed in the following way (step 1 in Fig 1). First we manually marked each tweet with a (BCMS) or (not_BCMS) mark. After that we ...

  • A WordNet Ontology in Improving Searches of Digital Dialect Dictionary

    Miljana Mladenović, Ranka Stanković, Cvetana Krstev (2017)
    In this paper, we present a method for automatic generation of a digital resource, which connects all indirect synonyms of a dialect term to all indirect synonyms of a corresponding term in the standard language, aiming to improve the search of a digital dialect dictionary. The method uses SWRL rules defined in the Serbian WordNet ontology to identify sets of synonymous words. It also uses e-dictionaries to produce correct lemmas in standard language that users usually employ in searches. ...
    ... dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Using a Wornet Ontology to Improve the Search of the ...
    ... found in the dialect dictionary whose definitions contained this verb in the form of the first person singularupropastim. upropastiti | isabim batisem dokrajisem istrovim izabim izakam oznobim profuckam (4) In this step the SWN ontology was used in order to implement inference rules defined in Subsection ...
    ... table was obtained that contained in each row a verb lemma and its indirect synonyms (in the standard language) as shown in the next example: upropastiti | unerediti, unistiti, uprskati, zabrljati, zajebati, zakrmaciti, zasvinjiti (5) In the final step, tables obtained in steps (3) and (4) were joined ...

  • Mine ventilation system planning using genetic algorithms

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...
    coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methods

  • Automatic construction of a morphological dictionary of multi-word units

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić (2010)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multiwordn units, noun phrases, query expansion
    ... end, a lemma for each simple word constituent that inflects in a MWU has to be provided, as well as values of all grammatical categories of forms appearing in the MWU lemma (its regular or dictionary form). For the given example, the entry in DELAC dictionary is: civilni(civilni.A2:adms1g) vojni(vojni ...
    ... to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    ... model these MWUs correctly [4]. When applied to a text in automatic text analysis these FSTs associate recognized MWUs with lemmas as well as with appropriate grammatical categories. Both the associated lem- mas and grammatical categories are in the same format as the one provided by dictionaries of ...

  • Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm

    Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić (2021)
    Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...
    Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering
    ... potential negative spatial/territorial impacts are eliminated in the planning process and in the SEA and further development of the project, as well as preparation of the EIA/ESIA study can be approached in a relaxed manner by the investor, the creditor and the experts involved. The negative context ...
    ... publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Energies 2021, 14, 6174. https://doi.org/10.3390/en14196174 www.mdpi.com/journal/energies Article Strategic Environmental Assessment in the Application ...
    ... selected receptors, in terms of increasing the value of noise intensity above the allowed levels. Energies 2021, 14, 6174 12 of 15 The manner of presenting the results of the impact assessment in SEA (visualization) is particularly important for investors, as well as decision makers, who ...

  • Quantitative analysis of syllable properties in Croatian, Serbian, Russian, and Ukrainian

    Biljana Rujević, Marija Kaplar, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Jan Mačutek (2021)
    slogovi, distribucija rang-preciznost, slovenski jezici

  • On the compatibility of lexical resources for NooJ

    Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović (2012)
    Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions.
    ... each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions. In ...
    ... standing-jib, and was well rigged for running before the wind... The next source of false recognition is more serious. Namely, in the English e-dictionary numbers are marked as determiners, which represent a wider category, as illustrated by the following example. En: Squarely in his armchair, his ...
    ... dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Proceedings of the 2011 International NooJ Conference ...

  • Keyword Extraction from Parallel Abstracts of Scientific Publications

    Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić (2017)
    ... geosciences, as well as from other scientific and technical disciplines having a direct or indirect application in mining. During the period of 2004–2012, the journal published 55 papers bilingually, in Serbian and in English. These papers are available online as aligned parallel text in the Biblisha1 ...
    ... selection is oriented on the overall meaning and essence. Thereafter, in several cases the given keywords are not present in the text as the same term, in those cases, the concept is replaced with a synonym or hypernym. For Serbian as well as for English languages, recall achieves higher values than precision ...
    ... can be applied to shorter documents as well. Since SBKE is grounded in a structural and statistical information incor- porated into the network structure the expected outcome is to achieve better performance on larger texts and on the whole document collection. In this case, SBKE proved correctly also ...

  • A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)

    Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...
    Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenika

  • Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines

    Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković (2021)
    The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...
    In Pit Crushing and Conveying, IPCC, open pit mining, haulage, optimization, costs saving

  • Combining Heterogeneous Lexical Resources

    Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić (2004)
    development of lexical resources, morphological dictionaries, WordNet
    ... can be used in its development. In this paper we will outline some of the most interesting examples. W e also present an integrated programming tool that enables the integration of these diverse lexical resources, as well as possible applications. We envisage the use of these resources in defining and ...
    ... of the basic synsets in the Princeton WordNet 2.0, the hypernym/hyponym relations in SWN mirror its hierarchical structure. Other relations are implemented more freely, depending on specific lexicalizations in Serbian. These relations include antonymy, meronymy, as well as some cross-part of ...
    ... Princeton WN as well, and they can be understood as ‘at least on literal from the source synset is in the relation with al least one literal in the target synset’. 2.3 The information from SWN can be successfully used to enrich the SMD, namely the wordnet hierarchy can be used to add semantic information ...