Претрага

Упит dcterms_subject_txt:multi-criteria decision methods

594 items

  • Development of A Business Intelligence Tool For Accident Analysis in Mines

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić (2015)
    ... community. However, BI is more focused on decision making using data warehousing and online analytical processing (OLAP) techniques, where data warehousing pertains to collecting relevant data into a repository, where it is organized and validated for decision-making purposes. KM and BI, while having ...
    ... with the basic goal to secure reliable information for managers and decision makers. In addition to that, different ICT support systems and tools have been developed and implemented, such as diagnostic and prognostic decision support systems, computerized maintenance management systems (CMMS) and ...
    ... eradicate human anguish and suffering and to achieve economy of operation in an effective manner (Dhillon, 2003). The BI system for support of decision making in safety management uses a combination of various information technologies, such as OLTP (On Line Transactional Processing), OLAP (On Line ...

  • Metals in Sediment and Phragmites Australis (Common Reed) from Tisza River, Serbia

    Štrbac Snežana, Šajnović Aleksandra, Grubin Kašanin Milica, Vasić Nebojša, Dojčinović Biljana, Simonović Predrag, Jovančićević Branimir (2014)

  • A business intelligence approach to mine safety management

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić (2016)
    ... or decision-making process is undisturbed. Online analytical processing involves several basic analytical operations, including consolidation, “drill-down” and “slicing and dicing” [7]. In mine safety it is necessary to follow several attributes related to injuries, perform their multi-dimensional ...
    ... 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 for decision-making purposes. The use of proper ...
    ... with the basic goal to secure reliable information for managers and decision makers. In addition to that, different ICT support systems and tools have been developed and implemented, such as diagnostic and prognostic decision support systems, computerized maintenance management systems (CMMS) ...

  • Evaluation And Perspectives Of Underground Coal Mines In Serbia

    Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić (2017)
    ... Process (AHP) is a multi-criteria decision-making approach introduced by Saaty [4]. The AHP method enables users to determine the weights of the parameters in the solution of a multi-criteria problem. In the AHP method, a hierarchical model consisting of objectives, criteria, sub-criteria and alternatives ...
    ... is to apply more recent decision-making tools, such as Analytical Hierarchy Process (AHP), for the purpose of evaluating and ranking of the mines operated by PCUCE. Criteria for evaluation Initial step for evaluation of mines operated by PCUCE is to select criteria which will be used in ...
    ... following criteria are selected: • Reserves, score is given in relation to existing A and B amounts of reserves (criteria C1); • Geological conditions, such as faulting, seam inclination, block size, seam variation, roof and floor conditions, rock pressure and geo-mechanic conditions (criteria C2); ...

  • Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2017)
    Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...
    ... system and new indexing methods shows that the InQuery method is superior for majority of queries over current system and other indexing methods. The comparison of several methods for queries with greatest difference between highest and lowest value (in favor of improved methods) is given in Fig. 10. ...
    ... keyword matches in all metadata fields in the summary report is available, but the user can also perform a faceted search using additional criteria. These criteria restrict 1 http://geoliss.mre.gov.rs; search of fund documentation http://geoliss.mre.gov.rs/ index.php?page=fodib. 2 Actually, almost 9 ...
    ... of geological documentation relied on traditional methods based on libraries and archives, which often made the task of obtaining specific information difficult or time consuming. Geological data have been collected for years, using different methods, and stored in various formats, seldom structured ...

  • Design of the Opencast Coal Mine Drmno Dewatering System

    Vladimir Pavlović, Dušan Polomčić, Tomislav Šubaranović (2014)
    Development of mining in the opencast mine Drmno from Kostolac basin in Serbia is carried out in the increasingly complex geological and hydro geological conditions with the decline of the coal seams to the alluvial part of Europe's largest river Danube. Greater depth and inflow of groundwater significantly increase costs for dewatering facilities construction with the requirement for optimizing of this more and more important surface mining process. Making decision on screen construction in the opencast mine with redesign ...
    dewatering system, groundwater, hydrodynamic model, dewatering wells, screen, reliability, environmental effects.

  • The ‘Umka’ landslide

    Uroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević (2024)
    We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...
    rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoring

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... acquired data. The classification of geophysical (geoelectrical) methods is based on the number of dimensions shown, thus, we have one-dimensional, two-dimensional and three- dimensional geophysical methods. One-dimensional methods (1D) are used only when we want to get the information of the thickness ...
    ... noises, economical aspects of the survey and required staff. Geoelectrical methods for surveying subsurface structures serve as economically efficient and time-saving process (with regards to other subsurface surveying methods). The main limitation of exploration drilling is a high cost (drills, required ...
    ... of the former Federal executive council of SFRY, “Ada Huja” became a waste dump site. A variety of birds was endangered as consequence of this decision, one of which was the white-tailed-eagle, the largest eagle in Europe. Through the decades that followed, rapid agglomeration caused the habitation ...

  • Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis

    Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović (2017)
    U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...
    Omeka, Wordnet, pretraga punog teksta, morfološka i semantička pretraga teksta, proširenje upita
    ... solve them is to use different methods. The motivation for creating hybrid systems can be to improve methods, to solve problems complexity with multiple tasks and resolve multifunctionality. Improving the method can be achieved by integrating different methods to overcome specific limitations and ...
    ... to support original formats used in another software tools for language resources processing (Unitex, WorNet, LeXimir, Vebran). Another important decision was to try re-using the available software, avoid developing existing functions, but focus on the necessary functions that did not exist and then ...
    ... [if morphological expansion not selected] generate literals in selected alphabets() find corresponding wordforms in selected alphabets() select multi l ingual expansion and resources() create expanded query() list of serbian synsets() expanded query() list of serbian synsets() enter word() ...

  • Production information system of the Pljevlja coal mine

    Božo Kolonja, Ranka Stanković, Filip Vuković (2018)

  • 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
    ... Karović-Maričić, V.; & Danilović, D. The preliminary selection of oil reservoir in Serbia for carbon dioxide injection and storage by a multicriteria decision-making approach: a case study. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 2021, doi: 10.1080/15567036.2021.1936303 ...
    ... a2f-a48b- 9eed19457335/GlobalEnergyReview2021.pdf (accessed on 15 July 2021). 2. Tomić, L.; Karović-Maričić, V.; Danilović, D.; & Crnogorac, M. Criteria for CO2 storage in geological formations. Podzemni radovi 2018, 32, 61-74, doi: 10.5937/PodRad1832061T. Available online: https://scindeks-clanci ...
    ... process stream, capturing after combustion, capturing before combustion and capturing CO2 by oxy-fuel. In this paper is presented an overview of methods for CO2 capture and different technological procedures for separation of CO2 such as absorption, adsorption, cryogenic distillation, and membrane-based ...

  • Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia

    Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović (2024)
    lokalni putevi, prirodni hazardi, otpornost na klimatske promene, MaPLoRds

  • 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
    ... function is the extraction of sub- sets of lemmas based on different criteria: lemmas’ beginning, their part of speech (PoS), inflectional class code, syntactic and/or semantic markers or a Boolean com- bination of these criteria. Figure 3 shows the table for manual production of a DELAC entry having ...
    ... 03:23:31 An Approach to Efficient Processing of Multi-Word Units Cvetana Krstev, Ivan Obradović, Ranka Stanković, Duško Vitas Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] An Approach to Efficient Processing of Multi-Word Units | Cvetana Krstev, Ivan Obradović ...
    ... text, the Serbian translation of Voltaire’s Candide. The NLP community offered various approaches to lexical treatment of multi- word units (MWUs). Since 2003 the workshops on multi-word expressions are being regularly organized in the scope of major events — ACL, EACL, Coling or LREC — not to mention ...

  • Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović (2022)
    This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...
    системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композиција

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • 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

  • Water sampling in Dornogobi (Mongolia)

    Vakanjac Boris, Ristić-Vakanjac Vesna (2012)

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers

    Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić (2019)
    Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...
    Efikasnost, Fazi zaključivanje, Prikupljanje podataka, Buldozer

  • Towards more sustainable district heating systems in Serbia - Options and obstacles

    Marija Živković, Boban Pavlović, Dejan Ivezić, Miloš Tanasijević, Dejan Stojanović (2024)
    The major share of energy consumed in the building environment is dedicated to meeting heating needs, which makes this sector one of the key players in the transformation of the whole energy system. The accurate approach to the transition process assumes acting on both the demand and supply sides. Lately, the supply side has received more attention, as its transformation is one of the key steps of the energy transition process. District heating systems are recognized as substantial contributors ...
    energetska tranzicija, daljinsko grejanje, dekarbonizacija, obnovljivi izvori energije, prepreke, Srbija