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Упит dcterms_subject_txt:magnetic data

1106 items

  • Fourth Summer Datathon on Linguistic Linked Open Data

    Tijana Radović, Ranka Stanković (2023)
    The 4th Summer Datathon on Linguistic Linked Open Data (SD-LLOD-22) was held in Spain, in Cersedilla near Madrid, in May 2022, and organized by the COST Action NexusLinguarum. The school gathered interested researchers, academics, students who wanted to acquire and/or expand their knowledge in the field of linguistic linked data science. During the school, a spectrum of topics from the field of linked data was presented, from various ontologies, through document integration, annotation and natural language text processing tools ...
    linguistic linked open data, sentiment analysis, linked data, RDF

  • From post-disaster landslides inventory to open landslides data

    Biljana Abolmasov, Miloš Marjanović, Uroš Đurić, Jelka Krušić (2021)

  • Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata

    Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović (2012)
    ... attributes (data describing a geographic entity numerically or textually), geometry (data defining the shape and size of an entity and its position in space) and topology (data defining relations between different geographic entities). Consequently, there are three basic groups of data in a GIS, namely: ...
    ... information system, is a repository for spatio-temporal data sets, aimed at planning, monitoring and managing work at open pits. It enables not only visualization, but also analysis of stored data. Data registered in this database are the following: data on geological research, physical-chemical analysis ...
    ... 2006]. Simply put, spatial or geographic data are data on geographic entities, that is, data that identify the geographic position and shape of natural and artificial objects, such as roads, rivers, cadastral parcels or landfills. Namely, any object that can be represented on a map, as well as its ...

  • Using gravity data to define structural correlation affecting the formation of Neogene basins

    Snežana Ignjatović, Ivana Vasiljević, Branisav Sretković, Milanka Negovanović (2023)
    A gravity survey can help to define the structural correlation in the study area. The structures that have influenced the development of Neogene basins can be defined using gravity data. By applying mathematical transformations to gravity data, the geological structures (faults, nappes, etc.) that impacted the formation of Neogene basins can be defined. We have taken the part of the Dinarides as the test region. The paper presents the results obtained using the procedure residual, vertical gradient, and total ...
    gravity survey, mathematical transformation, basin

  • 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
    ... geomagnetic data (surveys in Serbia and North Macedonia), the total intensity of the Earth's magnetic field anomaly map (Fig. 4b) was calculated. The normal magnetic field was computed using the Geomagnetic Institute'"s (Grocka) formula for the epoch 1960.0. RTP was applied to these data, resulting ...
    ... Geophysics - Bouguer gravity anomaly map -– Total Earth's magnetic field reduced to the pole - Digital elevation model • Geology - Geologic maps (ophiolite target variable) - Distance to fault map Da ta pr ep ar at io n Data pre-processing \ • Train dataset balancing - DatasetA ( ...
    ... Kemp E, St-Onge MR (2008) Case study 2. LANDSAT, magnetic and topographic data for regional lithological mapping, southeast Baffin Island. https://doi.org/10. 4095/226015 Hossin M, Sulaiman MN (2015). A Review on Evaluation Metrics for Data Classification Evaluations IJDKP. https://doi.org/10 ...

  • 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
    ... geophysical well-logging data from closely spaced boreholes Branislav Sretković, Ivana Vasiljević, Dimitry Sidorov - Biryukov Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Analysis and visualization of geophysical well-logging data from closely spaced boreholes ...
    ... Analysis of the standard geophysical logging data provided significant insight into the state of the rock mass under the dam body itself. The purpose of additional data analysis and visualization procedures shown in this paper is the improvement of data presentation, their integration, mutual c ...
    ... especially in terms of water retention. That kind of data set provides an excellent opportunity for a new approach to analysis and visualization that differs from the standard logging data processing. Numerical interpolation and correlation of data from various logging measurements (short-normal and ...

  • 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
    ... learned models to predict labels on unlabeled data. Predicted data with high confidence are added to the training set as pseudo-labeled data for further training. If the model recognizes certain patterns in the unlabeled data that are similar to labeled data, it can use them for further training and ...
    ... nodes are data points and edges represent similarity between them. The model propagates information through the graph to label unlabeled data based on the labels of their neighbors. If some data are labeled as "normal," the model can use the similarity between unlabeled data and labeled data to assess ...
    ... are: 1. Data monitoring and analysis Sensors can collect data on various aspects of pump operation, such as pressure, flow rate, vibrations, temperature, and sounds. This data can be highly complex and encompass large amounts of information. Machine learning can analyze these data to identify ...

  • 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

  • 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

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... SQL Server Reporting Services and others. It is a system for direct analytical data processing implemented through Microsoft® SQL Server™ 2000 Analysis Services which supports multidimensional views of business data. The methodology has already been applied in the development of the first phase ...
    ... monitoring of data of an employee, starting from the moment when he/she joins the company. Personnel files contain general information about an employee, such as: date of birth, address, personal documents, education, qualifications, family status and state of health, labour relations, data on previous ...
    ... out by regular data input, in order to make data electronically registered in real time and presented for inspection, to help production process management and periodical reporting. All production capacities in the technological chain of production are defined on basis of data on equipment and ...

  • The oil industry and climate changes

    Dejan Radivojević (2020)
    Uprkos tome što je problem klimatskih promena poznat dugi niz godina i dalje veliki broj ljudi poistovećuje pojam vremenskih prilika sa klimom ne uzimajući u obzir različitu dužinu njihovog trajanja. U medijima se vrlo često mogu naći katastrofična predviđanja vezana za zagrevanje naše planete usled neodgovornog ponašanja čoveka. Sa druge strane geolozi znaju da je tokom geološke prošlosti naše planete bilo mnogo toplijih intervala od današnjih kao i da ti intervali nisu neminovno rezultovali masovnim izumiranjem živog sveta već su ...
    vremenske prilike, klima, naftne kompanije, strategije, Srbija
    ... Američkih Država. Sama koalicija je bila svesna da ne može da porekne naučni konsenzus oko klimatskih promena, ali se trudila da u njega unese sumnje i da napravi različite kontroverze. GCC je raspušten 2001. godine nakon što su članovi odbili da se suoče sa kritikom javnosti i dokazima o uticaju ...
    ... izjavio da „sada se moramo fokusirati na ono što može i treba da se uradi ne zato što možemo biti sigurni da se klimatske promene dešavaju nego zato što ne smemo ignorisati mogućnost da one po- stoje. Ukoliko svi preuzmemo odgovornost za budu- ćnost naše planete onda ostaje na nama da predu- zmemo ...
    ... satelitskim snimcima naučnici mogu da odrede da li je leto sušnije nego obično. Ukoliko se ovakav model nastavi tokom više narednih leta može se reći da on ukazuje na klimatske promene. Istraživanja klime i klimatskih promena je veoma značajno obzirom da utiče na ljude širom sveta. Porast ...

  • Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields

    Jelena Ratković, Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić (2022)
    Groundwater management is one of today’s important tasks. It has become necessary to seek out increasingly reliable methods to conserve groundwater resources. Dependable forecasting of the amounts of groundwater that can be abstracted in a sustainable manner requires longterm monitoring of the groundwater regime (rate of abstraction and groundwater levels). Monitoring of the groundwater source for the town of Bečej, Serbia had been disrupted for multiple years. The objective of the paper is to assess the possibility of reinterpreting ...
    upravljanje podzemnim vodama, izvorište podzemnih voda, prognoziranje

  • Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova

    Daniel P. Kržanović (2016-06-14)
    Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...
    površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).
    ... obzirom da svaki faktor proizvodnje ima svoju alternativnu upotrebu. Oportunitetnim troškom se smatra i zarada na osnovu kamate koju bi novac zarobljen u, na primer, sredstvima za proizvodnju mogao dati da je investiran u druge svrhe. Ili, kao vrednost kamatne stope koja bi se zaradila da je novac ...
    ... mogu da formiraju tri moguća para graničnih sadržaja u zavisnosti od ograničavajućih komponenti rudarskog sistema. To dovodi do šest različitih mogućnosti, ali samo jedna od njih je optimalna pod datim radnim uslovima. Najbolji način da se ispitaju međusobni odnosi šest graničnih sadržaja je da se izračuna ...
    ... nikada ne dešava u praksi i daje optimističke prognoze po pitanju ostvarivanja NPV za dati projekat (Wharton, 2000), ali postavlja NPV kao cilj kome se teži. Najjednostavniji način da se vrši otkopavanje na kopu jeste da se etaže sukcesivno otkopavaju od vrha ka dnu konačne konture kopa. Ovakav scenario ...

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

    Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović (2017)
    ... Abolmasov et al. project portal is available at http://geoliss.mre.gov.rs/ beware/ (Fig. 8). All data and data analysis and results are open access data. 4. SWOT analysis—SWOT analysis of available data for land-use/urban planning and human resources of each municipality were performed. Additional ...
    ... Geological Information System of Serbia http://geoliss.mre.gov.rs/. All project data and results were presented on BEWARE web portal as open data reports. Fig. 10 Screenshot of Open access BEWARE Project data-landslide data, landslide susceptibility maps and TPK files (in Serbian) Project BEWARE—Landslide ...
    ... partner users data uploads, platform for unifying and har- monizing landslide information from various sources, visu- alizing functionalities, transparency of the project to any beneficiary, disseminating project results. WP5—Data—Collecting all available (existing) and acquiring new data for feeding ...

  • OntoLex Publication Made Easy: A Dataset of Verbal Aspectual Pairs for Bosnian, Croatian and Serbian

    Ranka Stanković, Maxim Ionov, Medina Bajtarević, Lorena Ninčević (2024)
    Ovaj rad predstavlja novi jezički resurs za pretraživanje i istraživanje verbalnih aspektnih parova u BCS (bosanskom, hrvatskom i srpskom), kreiran korišćenjem principa Lingvističkih Povezanih Otvorenih Podataka (LLOD). Pošto ne postoji resurs koji bi pomogao učenicima bosanskog, hrvatskog i srpskog kao stranih jezika da prepoznaju aspekt glagola ili njegove parove, kreirali smo novi resurs koji će korisnicima pružiti informacije o aspektu, kao i link ka aspektnim parovima glagola. Ovaj resurs takođe sadrži spoljne linkove ka monolingvalnim rečnicima, Wordnetu i BabelNetu. ...
    aspekt glagola, lingvistički otvoreni podaci, BCS

  • LRMI markup of OER content within the BAEKTEL project

    Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić (2015)
    ... datasets forms the Linked Open Data Cloud, the decentralized core of the Semantic Web, where software agents can automatically find relationships between entities and make new discoveries. Linked Data search engines crawl the Web of Data by following links between data sources and provide expressive ...
    ... includes the “Web of Data”, which connects “things” rather than documents. The machine-readable datasets of the Semantic Web are used in: search engines, data integration, resource discovery and classification, cataloging, intelligent software agents, content rating, Big Data processing, etc. ...
    ... Sikos, L.F., Mastering Structured Data on the Semantic Web, From HTML5 Microdata to Linked Open Data, 2015, Springer Science+Business Media New York. [10] Nelson, P., Edmundo, T., Ricardo C.P., Jorge, L.V., Janneth, A.C., "Consuming and producing linked open data: the case of OpenCourseWare", ...

  • Чији је пример? Анализа лексичких обележја на примерима Речника САНУ

    Бранислава Б. Шандрих, Ранка М. Станковић, Мирјана С. Гочанин (2019)
    У овом раду поставља се питање: да ли се може утврдити ко је аутор неког текста уколико се анализирају искључиво његова лексичка обележја? Како бисмо покушали да добијемо одговор на ово питање, посматрали смо примере у оквиру речничког чланка појединачне лексеме Речника САНУ, који су забележени у пет томова (и то: I, II, XVIII, XIX и XX). Сваки пример је преузет из неког извора на шта упућују скраћенице, наведене у заградама. Од преко 5.000 понуђених извора, определили смо се ...
    идентификација ауторства, лексичка обележја, анализа обележја, примери Речника САНУ
    ... неке измене. И пошло се од једноставнијег ка сло- женијем. Одлучено је тако да се, уместо техничке скраћенице И. која значи исти извор, користе потпуни подаци о извору односно да се уведе одгова- рајућа скраћеница за дати извор. У штампаним издањима речничких томова употреба овог И. везује се превасходно ...
    ... Бранислава Б. Шандрих, Ранка М. Станковић, Мирјана С. Гочанин306 22, 1, 1, 0). То значи да дати текст има укупно тридесет карактера, двадесет два мала слова, једно велико слово, један узвичник и нема забележених ци- фара. Дата векторска репрезентација може се даље користити у неким изра- чунавањима. Ради ...
    ... примерима речника сану 307 Као вредност поља data бележи се текст, као вредност поља feature_ names наводи се листа назива обележја која се рачунају за дати текст. Уколи- ко се то поље изостави, сервис враћа вредности свих обележја које систем у датом тренутку подржава. У конкретном примеру излаз ...

  • Bridging Computational Lexicography and Corpus Linguistics: A Query Extension for OntoLex-FrAC

    Christian Chiarcos, Ranka Stanković, Maxim Ionov, Gilles Sérasset (2024)
    OntoLex, dominantni standard zajednice za mašinski čitljive leksičke resurse u kontekstu RDF-a, Linked Data i tehnologija Semantičkog veba, trenutno se proširuje sa posebnim modulom za Frekvencije, Primere i Informacije zasnovane na Korpusu (OntoLex-FrAC). Predlažemo novi komponent za OntoLex-FrAC, koji se bavi inkorporacijom korpusnih upita za (a) povezivanje rečnika sa korpusnim mašinama, (b) omogućavanje RDF baziranih web servisa da dinamički razmenjuju korpusne upite i podatke odgovora, i (c) korišćenje konvencionalnih upitačkih jezika za formalizaciju unutrašnje strukture kolokacija, skica reči i ...
    standardizacija, digitalna leksikografija, OntoLex, upiti korpusa, povezani podaci, Lingvistički povezani otvoreni podaci

  • Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia

    Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić (2019)
    We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity efect of density variations in the basement was extracted from the total gravity anomaly by removing the joint efect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity ...
    funkcije raspodele gustine, lateralna raspodela gustine, karta gustine podloge

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change