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Упит dcterms_subject_txt:Natural Language Processing

385 items

  • Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research

    Mirko Petković, Vesna Cvetkov, Branislav Sretenović (2014)
    магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија
    ... last three measurements, the geographical coordinates of the polygon cor- ner points were taken. DATA PROCESSING After the completion of the acquisition, the data was prepared for software processing. In the fi rst three cases, the data which had been acquired outside of the polygons was clipped from ...
    ... with this method of measurement, all the data fell within the margins of the test polygon, so the processing step where the data was spatially limited, was omitted. In the fi rst step of processing, the peaks were clipped, i.e., where the gradient value of the TMI was outside the range of ± 70 nT/m ...
    ... anomalies along traverses which are the subject of magnetic surveys in walking mode imposed the need to test diff erent methods of acquisition and processing of magnetic data. For the testing polygon, the fi eld above the previously identifi ed archaeological anomaly in the archaeological site “Kremenite ...

  • Development of Integrated Fuzzy Model for Mine Management Optimization

    Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)
    Technoeconomic, environmental and safety criteria generally affect the management of metallic and non-metallic mining operations. The first basic question that needs to be addressed when planning ore mining is which methods are adequate and what is the optimal mining technology? Due to the complex geologic framework of ore deposits, geological exploration has rendered synonymous the inherent uncertainties, vagueness, and inaccuracies. As a result, subjective evaluation by engineers and expert experience have become increasingly important. Given that the natural language ...
    mining technology, expert evaluation, triangular fuzzy numbers, multicriteria decision making

  • Investigation of nanostructured Ca0.9Er0.1MnO3 obtained by sucrose nitrate procedure

    Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)
    ... Frontiers in Multifunctional Material Science and Processing (11 ; 2023 ; Beograd) Program ; and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia ...
    ... rgf.bg.ac.rs Serbian Ceramic Society Conference ADVANCED CERAMICS AND APPLICATION XI New Frontiers in Multifunctional Material Science and Processing Serbian Ceramic Society Institute of Technical Sciences of SASA Institute for Testing of Materials Institute of Chemistry Technology and ...
    ... September 2023. Serbian Ceramic Society Conference ADVANCED CERAMICS AND APPLICATION XI New Frontiers in Multifunctional Material Science and Processing Serbian Ceramic Society Institute of Technical Sciences of SASA Institute for Testing of Materials Institute of Chemistry Technology and ...

  • Употреба веб платформе Омека за дигиталне библиотеке из домена рударства

    Александра Томашевић, Биљана Лазић, Далибор Воркапић, Михаило Шкорић, Љиљана Колоња (2017)
    У овом раду биће представљена Омека, веб платформа за приказивање дигиталних колекциjа и систем за управљање њиховим садржаjем. Њену примену у области техничких наука, а конкретно у области рударства, приказаћемо на примеру дигиталне библиотеке ROmeka@RGF. За Омеку смо се определили првенствено због чињенице да jе jедноставна за коришћење, има обимну пратећу документациjу и не захтева уско специфичне информатичке вештине што jе чини приступачном за већину корисника, а нарочито за рударске инжењере, коjима jе ова дигитална библиотека првенствено намењена. Документа ...
    Омека, дигиталне библиотеке, рударство
    ... библиотекама jе да су информациjе организоване 13 Optical character recognition (OCR) 14 https://www.ibm.com/watson/services/natural-language-understanding/ 15 MAchine Learning for LanguagE Toolkit, http://mallet.cs.umass.edu/ 34 Инфотека, год. 17, бр. 2, 2017. Научни рад на рачунарима и доступне корисницима ...
    ... анотациjа обjеката. На 15 основних елемената (title, creator, subject, description, publisher, contributor, date, type, format, identifier, source, language, relation, coverage, rights) додаjе скуп од 40 додатних елемената и то: abstract, access rights, accrual met- hod, accrual periodicity, accrual policy ...
    ... Obradović. “The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines”. In LREC, Paris, France: European Language Resources Association (ELRA), 219–224, 2008. http://lrec-conf.org/ proceedings/lrec2008/pdf/67_paper.pdf Kucsma, Jason, Kevin Reiss and Angela Sidman ...

  • 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 ...
    ... generated report 3.2 Online Analytical Processing MIS, as an intelligent system for support of decision making in the mine uses the combination of various IT technologies, such as OLTP (On Line Transactional Processing), OLAP (On Line Analytical Processing), WEB, SQL Server Reporting Services, etc ...
    ... different IT technologies such as .NET, OLTP, OLAP, WEB, 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 ...
    ... etc. Hence, it is a system for direct analytical data processing implemented through Microsoft® SQL Server™ 2000 Analysis Services, which supports multidimensional views on business data, using the technology of multidimensional or relational databases. Managers and analysts who often require higher ...

  • 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
    ... used as the strategy for defining the model of processes and data in the development of INVENTS. In this paper UML (Unified Modeling Language), as a standard language for visualization, specification, constructing and documenting of data on software was adopted for the software development analysis ...
    ... offers safe data archiving for complex data models as this one, as well as all procedures for data manipulation. The use of SQL as a standard query language for data manipulation secures the openness of the hybrid system INVENTS for a connection with different environments. Figure 8 depicts the structure ...
    ... comprises a symbolic upgrade of the existing simulation packages SimVent and ResNet. The development of a frame-based knowledge base presents a natural approach to the realization of a hierarchically structured strategy. References [1] Coad,P., and Yourdon,E., Object-Oriented Analysis, Second edition ...

  • 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 ...
    ... used as the strategy for defining the model of processes and data in the development of INVENTS. In this paper UML (Unified Modeling Language), as a standard language for visualization, specification, constructing and documenting of data on software was adopted for the software development analysis ...
    ... offers safe data archiving for complex data models as this one, as well as all procedures for data manipulation. The use of SQL as a standard query language for data manipulation secures the openness of the hybrid system INVENTS for a connection with different environments. Figure 8 depicts the structure ...
    ... comprises a symbolic upgrade of the existing simulation packages SimVent and ResNet. The development of a frame-based knowledge base presents a natural approach to the realization of a hierarchically structured strategy. References [1] Coad,P., and Yourdon,E., Object-Oriented Analysis, Second edition ...

  • 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
    ... енглеском)  142. Hartshorn, J.E. 1985. Introduction: natural gas development begins at home. Energy  10(2), 111–118. (на енглеском)  143. Hall, K.R., Iglesias‐Silva, G.A. 2007. Improved equations for the Standing‐Katz tables.  Hydrocarbon Processing 86(4), 107‐110. (на енглеском)  144. Haman, Y.M., Brameller ...
    ... ged  gas systems. New method for optimization of pipe diameters is developed.     Нatural gas  in Serbian towns will be  the most adequate  fuel. So rational way  for usage of natural gas  should be developed. Natural gas can be used for satisfying population needs for heating, either directly  by  bringing  ...
    ...  the implicit Colebrook‐White equation using Excel. Hydrocarbon Processing /in press/ (на енглеском)  26 Brkić, D. 2009. New reformulation of Colebrook‐White equation for flow friction based on Lambert‐W function. Hydrocarbon Processing /in  press/ (на енглеском)  27 Brkić, D. 2009. Gas distribution ...

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... monitoring tech- niques—automated GNSS monitoring system measure- ments, geodetic benchmark survey monitoring, UAV imaging, processing and analysis, and PSInSAR data processing and analysis. Results of all monitoring activ- ities were analysed and used for cross-correlation and for verification of ...
    ... mailto:mimas@grf.bg.ac.rs mailto:nbrodic@grf.bg.ac.rs https://doi.org/10.1007/978-3-030-60196-6_14 monitoring, UAV imaging, processing and analysis, and PSInSAR data processing and analysis, additionally to the existing GNNS monitoring system. The objective of this paper is to present the results of ...
    ... intro- duced techniques for landslide monitoring: geodetic bench- mark survey monitoring, UAV imaging with photogrammetric processing and analysis, and PSInSAR data processing and analysis. The main goals for introducing new monitoring techniques were: (1) to increase the number of surface monitoring ...

  • Integrative GHG Assessment in Oil and Gas Industry

    Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa (2023)
    Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...
    energetska tranzicija, gasovi staklene baste, industrija, nafta i gas
    ... coal has the major sharc of 44%, oil of 33.7%, and natural gas of 21.6% [1]. The Oil and Gas (hereinafter O&G) related activities contribute more than 52 50% of global GHG energy-related emissions mainly through hydrocarbon extraction, processing, and subsequent combustion processes |[1,2,8|. The ...
    ... Gas Production [fCH,/MMscf]} 0.02601 Reference CHa content [%] 78.8 } i Natural Gas [tCO»/T]] } 56.1 | Diesel [tCOx/T] 74.1 IPCC Stationary Combustion : Natural Gas [ICH,/T]] 0.001 : Diesel [tCHy/T] ; 0.003 Natural Gas [tNO/TJ] 0.0001 : Diesel [tN.O/T] i ___0.0006 : Diesel [tCO-/T] : 74 ...
    ... and gas production and processing facility, including fugitivc emission and flaring. The calculation is based on data specifically derived to represent a typical upstream oil and gas company, which encompasses thc various activitics involved in production and processing. It considers the company's ...

  • Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series

    Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)
    Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...
    deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija
    ... by the user and each interval is characterized by an adequate linguistic variable. The variable whose values are words or sentences in a natural or artificial language is called a linguistic variable. We use five linguistic variables n = 5 to describe displacement intensity of configuration of the gate ...
    ... by the user and each interval is characterized by an adequate linguistic variable. The variable whose values are words or sentences in a natural or artificial language is called a linguistic variable. We use five linguistic variables n = 5 to describe displacement intensity of configuration of the gate ...
    ... support deformations over a defined time horizon we use laser scanning technology together with multivariate singular spectrum analysis to conduct data processing and forecasting. Fuzzy time series is applied to classify the intensity of displacements into several independent groups (clusters). Keywords: support ...

  • Environmental Noise Impact Assessment for Large-Scale Surface Mining Operations in Serbia

    Uros Pantelic, Petar Lilic, Aleksandar Cvjetic, Nikola Lilic (2023)
    Noise emissions are a significant environmental impact caused by the mining industry in all technological phases of surface mining, mineral processing, and waste disposal. This paper presents the role of noise impact assessment and control in large-scale surface mining operations. Mine planning develops the model of mining operations, ore excavation, and waste dumping scheduling and processing rates, including spatial distribution of mining activities. Such a level of mine planning requires an environmental impact assessment study. This can be achieved ...
    mine planning, noise impact assessment, mining, noise mapping, environmental impact assessment

  • Applying the Fuzzy Inference Model in Maintenance Centered to Safety: Case Study – Bucket Wheel Excavator

    Predrag Jovančić, Miloš Tanasijević, Vladimir Milisavljević, Aleksandar Cvjetić, Dejan Ivezić, Uglješa Bugarić (2020)

  • Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    To strengthen the security of supply of the Serbian gas sector, it is necessary to analyze the impact of planned strategic measures. The analysis involves the identification of the most influential threats to the security of natural gas supply and prioritization of the strategic measures for overcoming the consequences of threats. The proposed methodology is based on Fuzzy Analytic Hierarchy Process. The obtained weights for the identified threats and strategic measures are formed according to experts' judgments. The results ...
    Sigurnost snabdevanja, Donošenje odluka, Snabdevanje prirodnim gasom, Fazi AHP, Energetski indikatori

  • A business intelligence approach to mine safety management

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić (2016)
    ... a combination of various information technologies, such as OLTP (On Line Transactional Processing), OLAP, WEB, SQL Server Reporting Services, etc. Hence, it is a system for direct analytical data processing implemented through Microsoft® SQL Server™ 2008 Analysis Services, which supports multid ...
    ... ontologies developed for mining engineering named RudOnto. Keywords: Business intelligence, Mine safety, Accident analysis, Online analytical processing (OLAP), Mine accident (injury) 1. Introduction Mine safety is one of the key issues in mining industry, and it is safe to say that research ...
    ... and the same within the entrepreneurial community. However, BI is more focused on decision making using data warehousing and online analytical processing (OLAP) techniques, where data warehousing pertains to collecting knowledge asset data into a repository, where it is organized and validated ...

  • 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
    ... in the Areas of Natural Resources, Agriculture and Environment; Janev, I., Ed.; Nova Science Publishers, Inc.: Hauppauge, NY, USA, 2019; pp. 1–56, ISBN 978-1-53614-897-8. Available online: https://novapublishers.com/shop/serbia- current-issues-and-challenges-in-the-areas-of-natural-resources-agricu ...
    ... that existed in the previous period. The database that we checked and analyzed also included a large number of papers published in the Serbian language, and the most important sources of information were numerous papers and studies in which geology, mineralogy and origin of different indus- trial ...
    ... of exploitation (Table 3). In addition, high transport costs prevent potential exports, and domestic utilisation is impossible without bentonite processing plants and related industry that would use the final products. All these facts impose the necessity of a detailed and complex study of bentonite ...

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia

    Biljana Abolmasov, Uroš Đurić (2021)
    klizišta, monitoring
    ... landslide monitoring: automated GNSS monitorong network, geodetic benchmark survey monitoring, UAV imaging with photogrammetric processing and analysis, and PSInSAR data processing and analysis. Common to all implemented monitoring techniques is to measure displacement of the observed points (dx, dy, dz) ...
    ... monitoring network data, PSInSAR data analysis from Sentinel1 radar satellite images, conventional geodetic monitoring network data and UAV imaging, processing and data analysis in the last six years. Study area The Umka landslide is formed on the right Sava river bank, 22 km southwest from Belgrade ...

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... management and maintaining of RudOnto, as well as a wizard for exporting subsets of its concepts to several specific formats, including the web ontology language OWL. Keywords: mining equipment, terminological resources, onotologies, OWL, mining thesaurus 1. INTRODUCTION The use of information ...
    ... resource, can be used for transformation of subsets of its concepts to ontologies for specific areas of mining engineering using OWL (Web Ontology Language). The final section features some concluding remarks. 2. TERMINOLOGICAL RESOURCES 2.1 Semantic scale of terminological resources In general ...
    ... Mineral resource exploitation, Petroleum exploitation or Mining equipment. The structure of RudOnto can be described by an UML (Unified Modeling Language) model, as depicted in Figure 2. A brief description of this model follows. The lexicographic superclass within the model is the class Rečnik, ...

  • Ground surface subsidence monitoring using sentinel-1 in the “Kostolac” open pit coal mine

    Zoran Gojković, Milan Kilibarda, Ljiljana Brajović, Miloš Marjanović, Aleksandar Milutinović, Aleksandar Ganić (2023)
    Open pit coal mining affects surrounding populated areas, resulting in terrain surface deformation. Surface deformation should be monitored as often as possible to control deformations and prevent potential incidents. This paper analyzes time series deformation estimated from the Sentinel-1 satellite images using the Persistent Scatterer Interferometry method to monitor subsidence rates caused by open pit mining activities. It is possible to measure deformations using classical geodetic methods, but those are rarely used in practice because they are time-consuming and ...
    Sentinel-1 InSAR, слегање, рударствo, интерферометрија, даљинска детекција, Костолац