Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145151
Vladimír Zbožínek, P. Tomčík, J. Kulhanek
Paper describes measurements of chosen points of car frame and car parts during deceleration tests with comparison to mathematical model. The measurements was done on the unique prototype electric car developed on university. On the car was installed accelerometers, wheel sensors, and strain gauge sensors. Real measured data was recomputed according to mathematical model of load and compared to FEM model.
{"title":"Measurement of car frame load during deceleration tests","authors":"Vladimír Zbožínek, P. Tomčík, J. Kulhanek","doi":"10.1109/CARPATHIANCC.2015.7145151","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145151","url":null,"abstract":"Paper describes measurements of chosen points of car frame and car parts during deceleration tests with comparison to mathematical model. The measurements was done on the unique prototype electric car developed on university. On the car was installed accelerometers, wheel sensors, and strain gauge sensors. Real measured data was recomputed according to mathematical model of load and compared to FEM model.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125239069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145096
J. Molnár, M. Dobróka, A. Kiss
Understanding the relationship between pressure and rock physical parameters, such as acoustic velocities, absorption coefficients, elastic moduli, porosity is essential for exploring and exploiting of natural reserves. In this study petrophysical models are introduced which describe the relationship between acoustic longitudinal (P), transverse (S) wave velocities as well as quality factors and pressure. The governing equations of the models are based on the idea that the pore volume of a rock is decreasing with increasing pressure. To prove the applicability of the models, we measured P and S wave velocities in laboratory on sandstone samples by an automatic acoustic test system under uniaxial load. The loading of the samples were carried out by the Freely Programmable Interface module of the software DION 7. The velocities were measured automatically by the software GMuG/GL Test Systems PCUSpro. We applied 256-fold stacking to increase the signal/noise ratio. Acoustic velocities were measured by using the pulse transmission technique. By applying the programmed algorithm and the acoustic software the measurements have become completely automatic. On the other hand quality factor data set - published in literature - as a function of pressure was inverted too. After estimating the model parameters by joint inversion method, the velocities and quality factors can be calculated at any arbitrary stresses and the pressure dependent elastic moduli as well as loss angles can be derived. The quality checked joint inversion results showed that the misfits between measured and calculated data are small, the suggested petrophysical models can be applied well in practice.
了解压力与岩石物理参数(如声速、吸收系数、弹性模量、孔隙度)之间的关系对于勘探和开发自然储量至关重要。本文介绍了描述声波纵波速度、横波速度以及质量因子与压力之间关系的岩石物理模型。这些模型的控制方程是基于岩石的孔隙体积随着压力的增加而减小的思想。为了证明模型的适用性，我们在实验室用自动声测试系统对砂岩样品进行了单轴载荷下的纵波和横波速度测试。样品的加载由DION 7软件的自由可编程接口模块完成。速度由GMuG/GL Test Systems PCUSpro软件自动测量。我们采用256倍堆叠来提高信噪比。采用脉冲传输技术测量声速。通过应用程序算法和声学软件，测量已完全自动化。另一方面，文献中发表的质量因子数据集作为压力的函数也被反转。通过联合反演方法对模型参数进行估计后，可以计算任意应力下的速度和质量因子，并推导出与压力相关的弹性模量和损失角。经质量校核的联合反演结果表明，实测值与计算值的拟合误差较小，所建立的岩石物理模型可以很好地应用于实际。
{"title":"New petrophysical models verified on laboratory data measured by an automatic acoustic test system","authors":"J. Molnár, M. Dobróka, A. Kiss","doi":"10.1109/CARPATHIANCC.2015.7145096","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145096","url":null,"abstract":"Understanding the relationship between pressure and rock physical parameters, such as acoustic velocities, absorption coefficients, elastic moduli, porosity is essential for exploring and exploiting of natural reserves. In this study petrophysical models are introduced which describe the relationship between acoustic longitudinal (P), transverse (S) wave velocities as well as quality factors and pressure. The governing equations of the models are based on the idea that the pore volume of a rock is decreasing with increasing pressure. To prove the applicability of the models, we measured P and S wave velocities in laboratory on sandstone samples by an automatic acoustic test system under uniaxial load. The loading of the samples were carried out by the Freely Programmable Interface module of the software DION 7. The velocities were measured automatically by the software GMuG/GL Test Systems PCUSpro. We applied 256-fold stacking to increase the signal/noise ratio. Acoustic velocities were measured by using the pulse transmission technique. By applying the programmed algorithm and the acoustic software the measurements have become completely automatic. On the other hand quality factor data set - published in literature - as a function of pressure was inverted too. After estimating the model parameters by joint inversion method, the velocities and quality factors can be calculated at any arbitrary stresses and the pressure dependent elastic moduli as well as loss angles can be derived. The quality checked joint inversion results showed that the misfits between measured and calculated data are small, the suggested petrophysical models can be applied well in practice.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129920035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145071
T. Ivaniga, Ľ. Ovseník, J. Turán
This paper focuses on the analysis of passive optical network (Passive Optical Network - PON) by the program package OptSim and the subsequent measurement of a simulated network using OTDR (Optical Time Domain Reflectometer) in a functional physical model of optical fibre networks created by KEMT FEI TUKE (Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics, Technical University of Kosice). Nowadays, the construction of optical fibre communication systems can not function without software tools simulating a real network. This is done to avoid possible errors before the construction of communication systems. It is necessary to carry out the simulation of undesirable effects and phenomenas so that the proposed communication system is more suitable for the clients' requirements. Within the TUKE campus there is available an experimental model of the optical network represented by the various buildings connected with single-mode optical fibres type G-652_D terminated with SC / APC connectors for network types PON and FTTx. Theoretical properties of optical fibre networks type G-652_D are compared with simulated values in the program OptSim and the results are measured by OTDR.
{"title":"Experimental model of Passive Optical Network Technical University of Kosice","authors":"T. Ivaniga, Ľ. Ovseník, J. Turán","doi":"10.1109/CARPATHIANCC.2015.7145071","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145071","url":null,"abstract":"This paper focuses on the analysis of passive optical network (Passive Optical Network - PON) by the program package OptSim and the subsequent measurement of a simulated network using OTDR (Optical Time Domain Reflectometer) in a functional physical model of optical fibre networks created by KEMT FEI TUKE (Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics, Technical University of Kosice). Nowadays, the construction of optical fibre communication systems can not function without software tools simulating a real network. This is done to avoid possible errors before the construction of communication systems. It is necessary to carry out the simulation of undesirable effects and phenomenas so that the proposed communication system is more suitable for the clients' requirements. Within the TUKE campus there is available an experimental model of the optical network represented by the various buildings connected with single-mode optical fibres type G-652_D terminated with SC / APC connectors for network types PON and FTTx. Theoretical properties of optical fibre networks type G-652_D are compared with simulated values in the program OptSim and the results are measured by OTDR.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"1019 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120875018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145099
A. Nawrocka, M. Nawrocki, A. Kot
In the paper, the concept of using the type 2 fuzzy logic controller for nonlinear object control was presented. The first part provides general information about type 2 fuzzy logic. Next, information about the control object was presented. As a control object, the two degree of freedom robot manipulator was chosen. In this case there are two main problems. The first one is that the object is for a rehabilitation process so the quality of the control system is very important. The next problem is with the nonlinear dynamics with the uncertain parameters of a robot manipulator. The first part of the research consisted of simulation tests. For this part, a simulation model of robot manipulator was prepared. The dynamic equations were used to build a model in MATLAB. Fuzzy logic controller was built in MATLAB too. During this research, the main problem was suitable control quality. It is very important because control quality is connected with a rehabilitation process. The control algorithms enable movement realization and obtain a set position given by the physiotherapist. The results of simulation tests include comparisons between a traditional PID controller and a fuzzy logic controller (traditional fuzzy logic controller and type 2).
{"title":"Type - 2 fuzzy logic controller for nonlinear object control","authors":"A. Nawrocka, M. Nawrocki, A. Kot","doi":"10.1109/CARPATHIANCC.2015.7145099","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145099","url":null,"abstract":"In the paper, the concept of using the type 2 fuzzy logic controller for nonlinear object control was presented. The first part provides general information about type 2 fuzzy logic. Next, information about the control object was presented. As a control object, the two degree of freedom robot manipulator was chosen. In this case there are two main problems. The first one is that the object is for a rehabilitation process so the quality of the control system is very important. The next problem is with the nonlinear dynamics with the uncertain parameters of a robot manipulator. The first part of the research consisted of simulation tests. For this part, a simulation model of robot manipulator was prepared. The dynamic equations were used to build a model in MATLAB. Fuzzy logic controller was built in MATLAB too. During this research, the main problem was suitable control quality. It is very important because control quality is connected with a rehabilitation process. The control algorithms enable movement realization and obtain a set position given by the physiotherapist. The results of simulation tests include comparisons between a traditional PID controller and a fuzzy logic controller (traditional fuzzy logic controller and type 2).","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121347714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145149
G. Wacha, J. Lazányi, B. Fehér
Multicore architectures enable increasing the performance of the system with parallel processing. One of the challenges of a multicore embedded system is the correct usage of the processor cores. It is possible to achieve balanced processor load on the different cores, but the communication bandwidth between the cores is often a bottleneck. Passing large amounts of data between tasks mapped to different processor cores can result in cache misses in the local cache of a processor core. This paper introduces an analyzation method based on runtime generated data flow graphs to find the data paths of an algorithm. It shows that a spectral cluster analysis can help to discover data independent subsets in the algorithm under test. Finding the data independent parts helps to partition the program to multiple slices where the inter-slice communication is kept as low as possible. With our proposed method the communication bottleneck can be evaded in a multicore, multitask implementation, possibly resulting in better performance.
{"title":"Program slicing based on runtime dataflow measurements","authors":"G. Wacha, J. Lazányi, B. Fehér","doi":"10.1109/CARPATHIANCC.2015.7145149","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145149","url":null,"abstract":"Multicore architectures enable increasing the performance of the system with parallel processing. One of the challenges of a multicore embedded system is the correct usage of the processor cores. It is possible to achieve balanced processor load on the different cores, but the communication bandwidth between the cores is often a bottleneck. Passing large amounts of data between tasks mapped to different processor cores can result in cache misses in the local cache of a processor core. This paper introduces an analyzation method based on runtime generated data flow graphs to find the data paths of an algorithm. It shows that a spectral cluster analysis can help to discover data independent subsets in the algorithm under test. Finding the data independent parts helps to partition the program to multiple slices where the inter-slice communication is kept as low as possible. With our proposed method the communication bottleneck can be evaded in a multicore, multitask implementation, possibly resulting in better performance.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127096479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145091
I. Leššo, P. Horovčák, P. Flegner, Zuzana Gašpárová
The term KDD (knowledge discovery in databases) appeared in early 90s of the last century, due to the spread of information technology in the society and as a result of information technology development. The organization of large-scale, automated collection of data in databases, in data warehouses and data repositories enables non-trivial acquisition of implicit and potentially useful information from data. This issue is in practice mostly linked to the needs of strategic management decisions. In the present paper one of the possible approaches to knowledge discovery in long-term measurement of data of a processional character is pointed out. Authors of the paper, using a special method, evaluated the long-term measurements of the air temperature in two cities (Košice, Prague). The temperature data were scanned online and transmitted to the database via the internet. The resulting two sequences of temperatures are appropriately reorganized into the structure of a vector space with the inner product. By a suitable transformation of data vectors from the time domain to the frequency domain and by subsequent visualization it was shown that the environment of man, in terms of thermodynamics, is a non-linear dynamic system with the characteristics of chaos. Although the knowledge gained only confirmed in an exact way a priori expectations, the method described can be used universally across the class of processes with the observed dynamics.
KDD (knowledge discovery in databases)一词出现于上世纪90年代初，是信息技术在社会中的普及和信息技术发展的结果。在数据库、数据仓库和数据存储库中组织大规模、自动化的数据收集，可以从数据中获取隐含的和潜在有用的信息。这个问题在实践中主要与战略管理决策的需要有关。本文指出了一种在职业特征数据的长期测量中进行知识发现的可能途径。这篇论文的作者使用一种特殊的方法评估了两个城市(Košice，布拉格)的长期气温测量结果。温度数据被在线扫描，并通过互联网传输到数据库。由此产生的两个温度序列被适当地重组为具有内积的向量空间结构。通过适当地将数据向量从时域转换到频域，并在随后的可视化中表明，从热力学的角度来看，人的环境是一个具有混沌特征的非线性动态系统。虽然所获得的知识只是以一种精确的方式证实了先验的期望，但所描述的方法可以普遍地用于具有观察到的动力学的过程类。
{"title":"Contribution to the problem of knowledge discovery of a processional character in databases","authors":"I. Leššo, P. Horovčák, P. Flegner, Zuzana Gašpárová","doi":"10.1109/CARPATHIANCC.2015.7145091","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145091","url":null,"abstract":"The term KDD (knowledge discovery in databases) appeared in early 90s of the last century, due to the spread of information technology in the society and as a result of information technology development. The organization of large-scale, automated collection of data in databases, in data warehouses and data repositories enables non-trivial acquisition of implicit and potentially useful information from data. This issue is in practice mostly linked to the needs of strategic management decisions. In the present paper one of the possible approaches to knowledge discovery in long-term measurement of data of a processional character is pointed out. Authors of the paper, using a special method, evaluated the long-term measurements of the air temperature in two cities (Košice, Prague). The temperature data were scanned online and transmitted to the database via the internet. The resulting two sequences of temperatures are appropriately reorganized into the structure of a vector space with the inner product. By a suitable transformation of data vectors from the time domain to the frequency domain and by subsequent visualization it was shown that the environment of man, in terms of thermodynamics, is a non-linear dynamic system with the characteristics of chaos. Although the knowledge gained only confirmed in an exact way a priori expectations, the method described can be used universally across the class of processes with the observed dynamics.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125983776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145041
Roland Bartók, J. Vásárhelyi
This paper analyses a fuzzy rule interpolation method implemented on different platforms. Fuzzy rule interpolation based control systems play a major role in robot control and have several kinds of implementations. The fuzzy control applications based on fuzzy rule interpolation with the contributions made by Johanyak Cs. [7], allowed the implementation of several fuzzy models. In fuzzy control applications the real environment the complete rule base is not always available due to real manner and performance issues. In these cases, based on a sparse rule base fuzzy model the conclusion is interpolated using only the available surrounding rules (Kovacs Sz.) [6]. If the rule base is extended or modified during the control evolution then there a method should exist to modify the rule base. For this is need evolvable- or run time reconfigurable hardware.
{"title":"A fuzzy rule interpolation base algorithm implementation on different platforms","authors":"Roland Bartók, J. Vásárhelyi","doi":"10.1109/CARPATHIANCC.2015.7145041","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145041","url":null,"abstract":"This paper analyses a fuzzy rule interpolation method implemented on different platforms. Fuzzy rule interpolation based control systems play a major role in robot control and have several kinds of implementations. The fuzzy control applications based on fuzzy rule interpolation with the contributions made by Johanyak Cs. [7], allowed the implementation of several fuzzy models. In fuzzy control applications the real environment the complete rule base is not always available due to real manner and performance issues. In these cases, based on a sparse rule base fuzzy model the conclusion is interpolated using only the available surrounding rules (Kovacs Sz.) [6]. If the rule base is extended or modified during the control evolution then there a method should exist to modify the rule base. For this is need evolvable- or run time reconfigurable hardware.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132403026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145084
D. Krokavec, A. Filasová
The paper provides a new modification of the enhanced linear matrix inequality conditions in the state-space control design for discrete-time linear systems. This feasible task is formulated using a descriptor approach as an enhanced algorithm which is suitable for the closed-loop control structure stability verification and applicable for design of the control law matrix parameter. In relation to other existing methods, the proposed method maintains the principle of decoupling Lyapunov matrix and system matrix parameters but additionally, by extending the set of inequalities, relieves bond between the matrix variables.
{"title":"Control design for discrete-time linear systems using enhanced LMI conditions","authors":"D. Krokavec, A. Filasová","doi":"10.1109/CARPATHIANCC.2015.7145084","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145084","url":null,"abstract":"The paper provides a new modification of the enhanced linear matrix inequality conditions in the state-space control design for discrete-time linear systems. This feasible task is formulated using a descriptor approach as an enhanced algorithm which is suitable for the closed-loop control structure stability verification and applicable for design of the control law matrix parameter. In relation to other existing methods, the proposed method maintains the principle of decoupling Lyapunov matrix and system matrix parameters but additionally, by extending the set of inequalities, relieves bond between the matrix variables.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132607935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145063
D. Glusac, D. Karuović, Dusanka Milanov
With development of modern information and communication technologies, education became available to anyone who wishes to learn. The impact is obvious in many fields such as lifelong learning, students' self-improvement and business training. This paper focuses on presenting massive open online courses (MOOCs) as one of the concepts of modern electronic learning that extended traditional educational systems and is recognized as one of the nowadays biggest drivers of educational innovation. MOOCs enable learning through giving access to free education in form of courses from best universities from all over the world for anyone, without time or geographical limitations. This also raises many questions about pedagogical foundations of MOOCs and their validity of use in tertiary and lifelong education. Main characteristics of these courses as offered on some of the largest MOOC platforms such as Coursera, Udacity and edX will be analyzed from pedagogical viewpoint. Also, comparison between two forms of MOOCs will be given, with regard to learning theory of connectivism.
{"title":"Massive open online courses - pedagogical overview","authors":"D. Glusac, D. Karuović, Dusanka Milanov","doi":"10.1109/CARPATHIANCC.2015.7145063","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145063","url":null,"abstract":"With development of modern information and communication technologies, education became available to anyone who wishes to learn. The impact is obvious in many fields such as lifelong learning, students' self-improvement and business training. This paper focuses on presenting massive open online courses (MOOCs) as one of the concepts of modern electronic learning that extended traditional educational systems and is recognized as one of the nowadays biggest drivers of educational innovation. MOOCs enable learning through giving access to free education in form of courses from best universities from all over the world for anyone, without time or geographical limitations. This also raises many questions about pedagogical foundations of MOOCs and their validity of use in tertiary and lifelong education. Main characteristics of these courses as offered on some of the largest MOOC platforms such as Coursera, Udacity and edX will be analyzed from pedagogical viewpoint. Also, comparison between two forms of MOOCs will be given, with regard to learning theory of connectivism.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130469565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145043
Popa Bogdan
This paper deals with the topic of iterative processing functions and has the primary goal to show its usefulness today for natural image processing. In simple terms, “natural images” are “photographs” of a typical environment where we live. Starting from theoretical mathematical models whose parameters are estimated from image samples towards implementation using modern technologies, visualization using iterative functions is gaining more and more support in computational modeling of biological visual systems, and also in many related areas of research from engineering, biology, medicine to astronomy or economics. This article analyzes the methods of generation, visualization, calculation and comparison of performance management implementations on fractal sets.
{"title":"Iterative function systems for natural image processing","authors":"Popa Bogdan","doi":"10.1109/CARPATHIANCC.2015.7145043","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145043","url":null,"abstract":"This paper deals with the topic of iterative processing functions and has the primary goal to show its usefulness today for natural image processing. In simple terms, “natural images” are “photographs” of a typical environment where we live. Starting from theoretical mathematical models whose parameters are estimated from image samples towards implementation using modern technologies, visualization using iterative functions is gaining more and more support in computational modeling of biological visual systems, and also in many related areas of research from engineering, biology, medicine to astronomy or economics. This article analyzes the methods of generation, visualization, calculation and comparison of performance management implementations on fractal sets.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130488258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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