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Kosa Nenadic received her BSc and MSc degrees in Computer Science from the Faculty of…

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Publications

  • Real-Time Map Projection in Virtual Reality Using WebVR

    The 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO), IEEE

    In this paper, we present an implementation of a real-time web-based solution that projects pre-rendered map tiles onto a virtual reality plane. An interaction layer, that enables different ways of map manipulation including its surroundings, is developed. The implementation of the projection is described in detail. The main goal of our work is to show the advantages of the web-based map applications over the maps that currently exist and are being developed for native hardware and software…

    In this paper, we present an implementation of a real-time web-based solution that projects pre-rendered map tiles onto a virtual reality plane. An interaction layer, that enables different ways of map manipulation including its surroundings, is developed. The implementation of the projection is described in detail. The main goal of our work is to show the advantages of the web-based map applications over the maps that currently exist and are being developed for native hardware and software support in virtual reality. We measure and analyze their performances and discuss possible future integrations of the already existing platforms with the proposed solution. The implementation leverages JavaScript with WebGL by extending the possibilities of the A-Frame framework based on WebVR. The results of the performance evaluation proved a high usability and interaction level of the proposed solution with already existing and widely available hardware and software support.

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  • Extending JSON-LD Framing Capabilities

    Acta Polytechnica Hungarica - Journal of Applied Sciencies, Volume 14, Issue Number 6

    Today, with the increasing popularity of JSON-LD on the Web, there is a need for transformation and extraction of such structured data. In this paper, the authors propose extensions of the JSON-LD Framing specification which are able to create a tree layout based on recursive application of prioritized inverse relationships defined in a frame. The extensions include recursive application of reverse framing, a new @priority keyword which prioritizes reverse properties, a new embedding rule…

    Today, with the increasing popularity of JSON-LD on the Web, there is a need for transformation and extraction of such structured data. In this paper, the authors propose extensions of the JSON-LD Framing specification which are able to create a tree layout based on recursive application of prioritized inverse relationships defined in a frame. The extensions include recursive application of reverse framing, a new @priority keyword which prioritizes reverse properties, a new embedding rule defined with the @first keyword, and the new @reverseRoots keyword used for filtering the result hierarchies of full-length. The proposed Extended Framing Algorithm, together with an extended frame, can be applied on arbitrary JSON-LD input files regardless of the length of its reverse hierarchy chains present in the frame. The proposed solution was tested on JSON-LD documents containing the ENTSO-E CIM Profiles. The two test scenarios were selected because of their complexity and size, each of them containing the ENTSO-E CIM Profiles expressed in CIM RDF Schema and OWL 2 Schema, respectively.

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  • Validation of CIM datasets using SHACL

    IEEE

    In this paper, we analyze an application of the W3C's Shapes Constraint Language (SHACL) on the Common Information Model (CIM) for validation purposes. A mapping of CIM RDF Schema into SHACL shapes is defined and a SHACL implementation is made. The CGMES profiles and test configuration provided by ENTSO-E were used for evaluation. In an iterative validation process, required enhancements of CIM datasets were defined. A novel approach for validation of CIM datasets is proposed.

    Other authors
    • Milan Gavric
    • Vladimir Djurdjevic
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  • Enhancing CIM with linked data capability

    IEEE

    In this paper the Common Information Model (CIM) modeling approach is analyzed from the Linked Data perspective. Due to the Resource Description Framework Schema extensions and constraints introduced by CIM in the IEC standards, the authors propose the enhancements that add Linked Data capability allowing the application of standard based reasoning tools on CIM documents. The paper contains the new approach for CIM-based network modeling using JSON-LD having the Linked Data principles applied.

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    • Milan Gavric
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  • Rendering of JSON-LD CIM profile using web components

    IEEE

    In this paper existing means of realization of Common Information Model (CIM) profiles are analyzed with the focus on human readability. The IEC 61970-501 standard describes the process of mapping CIM into XML using the RDF Schema. In practice, CIM profiles may be defined using standardized CIM RDF Schema, or using OWL having both of them expressed in RDF/XML serialization format. Also, they may be defined in HTML and textual forms. Although CIM in RDF/XML is both machine and human readable it…

    In this paper existing means of realization of Common Information Model (CIM) profiles are analyzed with the focus on human readability. The IEC 61970-501 standard describes the process of mapping CIM into XML using the RDF Schema. In practice, CIM profiles may be defined using standardized CIM RDF Schema, or using OWL having both of them expressed in RDF/XML serialization format. Also, they may be defined in HTML and textual forms. Although CIM in RDF/XML is both machine and human readable it is not well suited for data interchange and manipulation on the Web. Instead, CIM profiles can be serialized in JSON-LD syntax and shaped using the processing algorithms recommended by W3C. A web component for transformation and visualization of CIM profiles is developed leveraging the latest web technologies - HTML5, JSON-LD and Web Components. In this way the interoperable and reusable web component for display of CIM profiles is created in line with the evolving Web Platform features. A real use case is demonstrated on a CIM profile developed by ENTSO-E.

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  • Client Side Internet Technologies in Critical Infrastructure Systems

    INTERNATIONAL JOURNAL OF COMPUTERS COMMUNICATIONS & CONTROL,vol. 7 br. 5, pages 879-891

    This paper assesses the applicability of client side Internet technologies in software solutions for critical infrastructure systems (CIS). It contains an in-depth analysis of four significant and well known development platforms, namely JavaScript with jQuery, the Google Web Tookit, Microsoft’s Silverlight and Adobe’s Flash/Flex. They were compared by using the ISO software quality characteristics as comparison criteria. Each of the technologies was applied in a real-life project and the…

    This paper assesses the applicability of client side Internet technologies in software solutions for critical infrastructure systems (CIS). It contains an in-depth analysis of four significant and well known development platforms, namely JavaScript with jQuery, the Google Web Tookit, Microsoft’s Silverlight and Adobe’s Flash/Flex. They were compared by using the ISO software quality characteristics as comparison criteria. Each of the technologies was applied in a real-life project and the results summarize the authors’ experience. The ultimate goal of this research is to enable software engineers to more easily choose a client-side Internet technology when developing a new software solution for the CIS domain.

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  • Modelling of system for creating curriculum

    InfoM - Journal of Information Technology and Multimedia Systems, volume 26

    Other authors
    • Dusan Surla

  • Usage of Java Open Source in Finance Software

    Infofest

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  • Mapping Faculty Curriculum into XML Schema

    Novi Sad Journal of Mathematics, volume 34, number 1, pages 157-170

    Other authors
    • Dusan Surla

  • Mapping sv20 document into XML Schema

    SYM-OP-IS

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  • Migration of student service data from XML to new system

    YU INFO

    Other authors
    • Vera Stojadinovic

  • Modeling of student service documents in XML schema language

    YU INFO

    Other authors
    • Dusan Surla

  • Visualization of XML curriculum document

    SYM-OP-IS

    Other authors
    • Dusan Surla

  • XML schema of the curriculum

    XVI Conference of Applied Mathematics, PRIM

    Other authors
    • Dusan Surla

Honors & Awards

  • EDISON Technical Expert I 2020

    Schneider Electric

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