434 papers found .

421. Data driven design for reliability of IoT applications

ICIST 2018 Proceedings Vol.2, 296-298
Nejković Valentina, Milošević Nenad, Jelenković Filip, Nikolić Zorica, Tošić Milorad
Abstract: The reliability of IoT networks gained its significance during the past several years, mainly due to the harmful coexistence with other technologies operating in the same 2.4 GHz frequency band. IoT applications, using ZigBee, have much lower power than WiFi, the most widespread technology in this frequency band. Such a coexistence results in a significant packet loss in ZigBee networks, which makes them unreliable. The sensor data driven design directions, developed using the massive online IoT testbed SmartSantander, are given in this paper. The interference problems are identified and described, which is the most important step towards the future performance improvement of IoT applications.

422. Monitoring Open Pit Mining in TE-KO Kostolac Issues and Challenges

ICIST 2018 Proceedings Vol.2, 299-304
Zogović Nikola, Pantelić Snežana, Stošić Dragan
Abstract: Supporting mining processes by modern information and communications technologies is emerging area. We have previously enabled monitoring of some important parameters in open pit mining and set an integral framework for sustainable mining. In this paper, we extend our activities in monitoring phase according to the proposed framework and analyze various ways of data collecting. We show that combining data from proprietary, open data and public sources, sufficient set of data for sustainable control of open pit mining process can be established.

423. Benefit analysis of blockchain technology on Hyperledger and Ethereum platform

ICIST 2018 Proceedings Vol.2, 305-308
Stankovski Jelena, Dejanović Stefan, Erdeljan Aleksandar, Lendak Imre
Abstract: In this paper, we will analyze benefits of two popular private blockchain platforms, Ethereum and Hyperledger Fabric. Blockchain is decentralized transaction and data management technology and is said that its impact will be similar to the impact Internet had. Blockchain can be implemented in many industries, but the question is: is it needed, regarding scalability, business value and performance? The goal of this paper is to present analysis results regarding business value of both blockchain platform.

424. Formalization of a knowledge base applied to dental implant

ICIST 2018 Proceedings Vol.2, 309-314
Biscolli Biasi Vinicius, Rudek Marcelo, Szejka Anderson Luis, Canciglieri Jr. Osiris
Abstract: With the expressive amount of terms and concepts generated over the years for all the existing domains, a formalization and possible validation of such domains were given as necessity. In the medical field, for example, more precisely in the field of implantology, terms are used daily in different ways around the world. The standardization of such terms is extremely important for human and machine understanding, thus creating a semantic interoperability between both systems. Thus, the use of ontologies as a method of knowledge formalization has been an approach to benefit the human understanding for any real domain. Applying this method to the area of implantology, ontological basis comes to benefit the professional dental surgeon at the time of decision making in choosing which type of dental implant to be applied to each particular case. This method consists of determining which implant is to be applied before a numerous physiological parameters of the patient compared to structural parameters of existing dental implants. For this method to be a real application, the formalized ontologies must contain and supply all essential data related to this domain. Therefore, this project focuses on the formalization of an ontological basis aimed at the application of a dental implant before physiological human and implant variables by itself. In order to obtain the results, it is essential to keep in mind the real meaning of the semantics and interoperability concepts, which should be applied together to the formalization of an ontology. In addition, it is necessary to analyze the application of these concepts in the dental field so that a case study based on the formalized ontology can be applied later. The formalization of the ontology was made based on Protégé software created by specialists of the university of Stanford in California. The results showed that not only an efficient but also effective solution for such an application was obtained, making the decision of dental professionals simpler with lower failure rates and better acceptance of the patient's body in relation to osseointegration.

425. Solution for quantitative analysis of texts in Serbian based on syllables

ICIST 2018 Proceedings Vol.2, 315-320
Kaplar Sebastijan, Stanković Ranka, Lazić Biljana, Obradović Ivan, Radojičić Marija
Abstract: The aim of this paper is to present an approach to quantitative analysis of syllable distribution in Serbian texts. The approach is based on creating a software that allows automatic processing of texts in Serbian, and which will have as a result the text with words divided in syllables, according to the syllabification rules for Serbian. Also, the program should give a detailed quantitative analysis of the processed text, which included the analysis of syllables by type, length, frequency, words, and text. In this paper some of the initial results are presented.

426. An Overview of Techniques for Non-Intrusive Load Monitoring

ICIST 2018 Proceedings Vol.2, 321-326
Đurović Milan, Batić Marko, Tomašević Nikola
Abstract: Although the financial benefits are crucial for today's market oriented industry, environment protection is recognized as an ultimate goal for modern industry development. This goal is usually performed in the frame of energy efficiency. It has been shown that non-intrusive load monitoring (NILM) is not only beneficial for planning and optimization of production but also for consumption of energy. Overview of basic problems related to NILM, key idea, theoretical frames for realization of this task and an implemented algorithm are presented in this paper.
Abstract: Although the financial benefits are crucial for today's market oriented industry, environment protection is recognized as an ultimate goal for modern industry development. This goal is usually performed in the frame of energy efficiency. It has been shown that non-intrusive load monitoring (NILM) is not only beneficial for planning and optimization of production but also for consumption of energy. Overview of basic problems related to NILM, key idea, theoretical frames for realization of this task and an implemented algorithm are presented in this paper.

428. The Semantic Web Conceptual Solution and Working Ontology for Tourism Ecosystem

ICIST 2018 Proceedings Vol.2, 327-332
Markoska Ramona, Markoski Aleksandar
Abstract: Tourism is one of the highly dynamic areas which already extensively are using the available Internet technologies. The Semantic Web as the next generation web, gives opportunity of having background knowledge about the meaning of web sources stored in a machine-readable way using appropriate ontologies. Several publicly available tourism ontologies already exist today. However, information management solutions for tourism are still at an early stage from a semantic point of view. Concept of tourism “ecosystems” gives opportunity to implement successful tourism sector strategy and address the system-level challenges that lead to build up the institutions that support tourism and solving the problems which includes inadequate physical and social infrastructure and insufficient attention to environmental issues. Based on previous principles authentic tourism ecosystem ontology is created and presented in this paper. Open source software OWLGrEd was used for ontology creation and a set of mutually compatible software tools for creating and implementation of semantic solutions, such as WAMP server, ARC2, PHP, MySQL, and SPARQL. Proposed conceptual solution can be used for development of the next generation tourism information systems.

429. Trust Establishing Model in IoT using PKI and Timestamp

ICIST 2018 Proceedings Vol.2, 333-338
Vulić Ivan, Prodanović Radomir, Vukčević Gradimir, Sretenović Stefan
Abstract: IoT system gathers data from physical devices integrated into a data exchange network. Upon analysis, intelligent systems or humans make decisions based on the analysis performed. The quality of decision made depends on the trustworthiness of the data sources. One of the key elements in the decision-making process is trustworthy interaction between IoT entity and time information. In order to make timely decision, it is necessary to be certain about the time of the data gathering. The authors apply PKI technology in order to secure trust between all parties in the communications and timestamping technology to verify digital data in specific time in trustworthy and verifiable way.

430. qGrains – Software for hydraulic conductivity estimation from granulometry

ICIST 2018 Proceedings Vol.2, 339-342
Jevtić Goran, Pušić Milenko, Dotlić Milan, Dimkić Milan
Abstract: Software qGrains is intended for estimation of hydraulic conductivity based on granulometry analysis of samples taken from exploration drills. Using qGrains, it is possible to make space classification, sistematization and schematization of sediments based on choosen percentage involvement or choosen grain-size. This is a usefull part of preparation for a higher level of hydrogeological interpretation, for example making hydrodinamical model.

431. Production of personalized child orthosis using additive technology

ICIST 2018 Proceedings Vol.2, 343-345
Pakši Ivana, Galeta Tomislav, Bodlović Ana-Marija, Raos Pero
Abstract: This paper explains the production of a personalized child orthosis with 3D printing technology. In agreement with the doctor’s specialists, an appropriate candidate was selected. The components of a child's orthosis have been modelled and adapted based on the scans from candidate acquired with 3D scanning technology. The 3D scanning process with OrtoSCAN digitizer and component modelling in Autodesk Fusion 360 are explained. Customized child orthosis components were made using two 3D printers: Prusa i3 P3Steel and Geeetech Prusa i3 Pro. Patient visit was followed by assembling of the orthosis. After final design and orthosis trial, the conclusion is that less modification on the shoulder part is needed and there is still room for further optimization of the orthosis. By using a generative design, it is possible to obtain an even more lighter customized orthosis that will satisfy the required mechanical properties and fulfill its function.

432. Transportation in Smart Cities - Tracking and improving driving comfort

ICIST 2018 Proceedings Vol.2, 346-349
Jovanović Željko, Avdić Aldina, Janković Dragan
Abstract: The rapid process of urbanization of the population in the world, as well as increased application of mobile and ubiquitous computing in all spheres of human activity, caused the modernization of the conditions of transport and traffic. Smart devices with the ability to collect data from the context of vehicles and passengers provide the possibility of processing them in order to increase the quality of transport services. If this information is publicly available and used to form collective intelligence in order to improve the transport conditions for residents of the cities, then they contribute to the areas of smart traffic in the concept of smart cities. The paper describes a smart transport service, which provides the possibility of monitoring the vibrations in the vehicle, in order to improve the level of comfort when driving in urban transport. The client-server application collects information about vibrations, and the result of their processing is publicly available estimations of routes, according to the criterion of driving comfort.

433. Edge computing system for large-scale distributed sensing systems

ICIST 2018 Proceedings Vol.1, 36-39
Simić Miloš, Stojkov Milan, Sladić Goran, Milosavljević Branko
Abstract: Cluster orchestration systems achieve high resource utilization, efficient task-packing, process-level isolation. They support high-availability applications with features that minimize fault and recovery time. These systems helped large internet companies like Google, Amazon, and Facebook to satisfy all their applications and big data workloads. With this ability, these systems can run a dozen of tasks at scale, to satisfy all operational needs. But current systems are not that easily applicable in domains with constant data flow with processing on the very edge of the network. We present a system for edge computing, with efficient resource utilization, orchestration, and taskpacking. With these properties, a system provides the ability to run user-defined tasks in clusters defined on the edge of the network for constant data acquisition, manipulation, and processing

434. Evaluation of Road Design through Driving Simulation — a Technical Review

ICIST 2018 Proceedings Vol.1, 54-58
Jekovec Matevž, Kralj Gregor, Trontelj Klemen, Novak Klemen, Tomažič Sašo
Abstract: Road design is a complex task and despite a rich set of skills and road regulations, a number of design questions remain unanswered until after the road has been constructed. Our aim is to offer civil engineers an evaluation of a new road segment on a driving simulator early in the design phase. In this paper we determine the practical workflow for exporting the road design produced by civil engineers to a driving simulator. While industrial grade software focuses on a feasible, cost-effective road design from the construction point of view, a simulator requires, among others, an optimized 3D model for performance, compelling visual details and semantic road information for autonomous traffic. In the workflow we explicitly use open source or freely available, cross platform, and scriptable tools and formats. Finally, we perform a showcase where test subjects evaluated the new road segment using the state of the art 4 DOF hardware simulator, an eye tracker, and biometric sensors to determine the driver’s stress level and response time.

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