Pub Date : 2016-10-28DOI: 10.1109/ICMCS.2016.7905543
S. Dakhli, H. Rmili, J. Floc'h, F. Choubani, M. Sheikh
In this paper we propose the design of a superdirective and compact antenna array. This antenna system is based on a capacitively loaded loop (CLL) driven by an electrically small monopole antenna. This elementary antenna is then used in a two elements compact parasitic array, in order to achieve a higher directivity. The two elements of this array are identical, but only one of them is driven, the other one is used as a parasitic element. The design of the elementary antenna, its simulated radiation performance are reported, as well as those of the parasitic array. A 7.20 dB maximum total directivity is achieved for this antenna array.
{"title":"Design of superdirective and compact antenna array","authors":"S. Dakhli, H. Rmili, J. Floc'h, F. Choubani, M. Sheikh","doi":"10.1109/ICMCS.2016.7905543","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905543","url":null,"abstract":"In this paper we propose the design of a superdirective and compact antenna array. This antenna system is based on a capacitively loaded loop (CLL) driven by an electrically small monopole antenna. This elementary antenna is then used in a two elements compact parasitic array, in order to achieve a higher directivity. The two elements of this array are identical, but only one of them is driven, the other one is used as a parasitic element. The design of the elementary antenna, its simulated radiation performance are reported, as well as those of the parasitic array. A 7.20 dB maximum total directivity is achieved for this antenna array.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115784610","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905545
Chaymae Fahassa, Yassine Zahraoui, M. Akherraz, A. Bennassar
This paper presents a more relevant infrastructure: fuzzy sensorless direct field oriented control (FDFOC), compared to the usual sensorless direct field oriented control (DFOC), in order to improve the induction motor (IM) performance at low speeds. In the FDFOC, a fuzzy logic adaptation mechanism based Luenberger observer used for speed adaptation is adopted, and all the proportional-integral (PI) controllers are substituted for intelligent ones: fuzzy logic controllers (FLCs). In the interest of evaluating both systems performance FDFOC and DFOC, a detailed comparative study is presented: functioning in both motor rotation directions with application of load torque disturbance at low speeds. Simulation tests prove the robustness of the new infrastructure FDFOC in comparison with the usual DFOC: Quick response, good load torque rejection, decrease of the stator phase current on startup, as a result the system dynamic has been improved significantly. On the other hand, the simulation presents excellent speed observation using adaptive Luenberger observer (ALO) whereas the estimated speed perfectly pursues the reference at low speeds. Simulations are done using Matlab.
{"title":"Improvement of induction motor performance at low speeds using fuzzy logic adaptation mechanism based sensorless direct field oriented control and fuzzy logic controllers (FDFOC)","authors":"Chaymae Fahassa, Yassine Zahraoui, M. Akherraz, A. Bennassar","doi":"10.1109/ICMCS.2016.7905545","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905545","url":null,"abstract":"This paper presents a more relevant infrastructure: fuzzy sensorless direct field oriented control (FDFOC), compared to the usual sensorless direct field oriented control (DFOC), in order to improve the induction motor (IM) performance at low speeds. In the FDFOC, a fuzzy logic adaptation mechanism based Luenberger observer used for speed adaptation is adopted, and all the proportional-integral (PI) controllers are substituted for intelligent ones: fuzzy logic controllers (FLCs). In the interest of evaluating both systems performance FDFOC and DFOC, a detailed comparative study is presented: functioning in both motor rotation directions with application of load torque disturbance at low speeds. Simulation tests prove the robustness of the new infrastructure FDFOC in comparison with the usual DFOC: Quick response, good load torque rejection, decrease of the stator phase current on startup, as a result the system dynamic has been improved significantly. On the other hand, the simulation presents excellent speed observation using adaptive Luenberger observer (ALO) whereas the estimated speed perfectly pursues the reference at low speeds. Simulations are done using Matlab.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115412183","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905529
Kahina Boucherk, Z. Ameur, Maï K. Nguyen
To diagnose serious eyes diseases, ophthalmologists use the color retinal images of a patient acquired from the digital fundus camera, such as the diabetic retinopathy that affects the morphology of the blood vessels tree, so an automatic detection and extraction of blood vessels in retinal images is important. In this paper, we present a method to extract blood vessels and delineate vascular intersection and crossovers. The proposed algorithm consists of three steps: first, the appearance of the blood vessels is enhanced and background noise is suppressed using Gaussian filters, in second step, entropic thresholding is used to detecting pixels in the enhanced image. Finally, the vascular intersections and bifurcations are obtained via the crossing number (CN) technique.
{"title":"Aid to the medical diagnosis by retinal analysis","authors":"Kahina Boucherk, Z. Ameur, Maï K. Nguyen","doi":"10.1109/ICMCS.2016.7905529","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905529","url":null,"abstract":"To diagnose serious eyes diseases, ophthalmologists use the color retinal images of a patient acquired from the digital fundus camera, such as the diabetic retinopathy that affects the morphology of the blood vessels tree, so an automatic detection and extraction of blood vessels in retinal images is important. In this paper, we present a method to extract blood vessels and delineate vascular intersection and crossovers. The proposed algorithm consists of three steps: first, the appearance of the blood vessels is enhanced and background noise is suppressed using Gaussian filters, in second step, entropic thresholding is used to detecting pixels in the enhanced image. Finally, the vascular intersections and bifurcations are obtained via the crossing number (CN) technique.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121790726","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905554
Ilias Kamal, J. Oubaha
In this paper, we apply the bag of features method to the car make and model recognition problem. In our implementation of the method, we use the LARS algorithm to optimize the quadratic problem known as the Lasso and by doing so we generate the dictionary of words. That dictionary is then used in conjuction to an image database to obtain a feature vector (each image yields one feature vector), said feature vector is then fed to an supervised classification algorithm (in our case an SVM).
{"title":"Car recognition using the bag of features method","authors":"Ilias Kamal, J. Oubaha","doi":"10.1109/ICMCS.2016.7905554","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905554","url":null,"abstract":"In this paper, we apply the bag of features method to the car make and model recognition problem. In our implementation of the method, we use the LARS algorithm to optimize the quadratic problem known as the Lasso and by doing so we generate the dictionary of words. That dictionary is then used in conjuction to an image database to obtain a feature vector (each image yields one feature vector), said feature vector is then fed to an supervised classification algorithm (in our case an SVM).","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116638637","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905632
Mohamed Bou-Imajjane, M. Sbihi
In this paper, we propose a segmentation model using MRF (Markov Random Fields) and a global optimization method based on ABC (Artificial Bee Colony) algorithm. As a Markovian algorithm, ICM (Iterated Conditional Modes) is an iterative method which takes into account the neighboring labels of the pixel in calculating the energy function that need to be minimized to obtain the best segmentation. To improve this local method in term of energy function optimization, ABC is so introduced knowing its robustness especially in discrete multivariable optimization problems. The contribution of this work is to propose MRF-ABC algorithm that consists of using ABC to optimize a Potts energy function, after an ICM initialization, in order to improve image segmentation quality. The whole algorithm is evaluated on MRI (Magnetic Resonance Images) and experimental results show the efficiency of the proposed approach.
{"title":"Brain image segmentation using Artificial Bee Colony optimization and Markovian Potts model","authors":"Mohamed Bou-Imajjane, M. Sbihi","doi":"10.1109/ICMCS.2016.7905632","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905632","url":null,"abstract":"In this paper, we propose a segmentation model using MRF (Markov Random Fields) and a global optimization method based on ABC (Artificial Bee Colony) algorithm. As a Markovian algorithm, ICM (Iterated Conditional Modes) is an iterative method which takes into account the neighboring labels of the pixel in calculating the energy function that need to be minimized to obtain the best segmentation. To improve this local method in term of energy function optimization, ABC is so introduced knowing its robustness especially in discrete multivariable optimization problems. The contribution of this work is to propose MRF-ABC algorithm that consists of using ABC to optimize a Potts energy function, after an ICM initialization, in order to improve image segmentation quality. The whole algorithm is evaluated on MRI (Magnetic Resonance Images) and experimental results show the efficiency of the proposed approach.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117163289","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905559
Abderrahim Mesbah, M. E. Mallahi, Zouhir Lakhili, H. Qjidaa, Aissam Berrahou
Discrete Krawtchouk moments are powerful tools in the field of image processing application and pattern recognition. In this paper, we propose a fast and accurate algorithm based on matrix multiplication to extract local features of 3D Krawtchouk moments. The center of interest region in an object can be shifted by varying three parameters. We also computed local Tchebichef moments from 3D object by using the weight function of Krawtchouk polynomials. Experiment results have shown the superiority of the proposed method in terms of object reconstruction comparing with Tchebichef moments.
{"title":"Fast and accurate algorithm for 3D local object reconstruction using Krawtchouk moments","authors":"Abderrahim Mesbah, M. E. Mallahi, Zouhir Lakhili, H. Qjidaa, Aissam Berrahou","doi":"10.1109/ICMCS.2016.7905559","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905559","url":null,"abstract":"Discrete Krawtchouk moments are powerful tools in the field of image processing application and pattern recognition. In this paper, we propose a fast and accurate algorithm based on matrix multiplication to extract local features of 3D Krawtchouk moments. The center of interest region in an object can be shifted by varying three parameters. We also computed local Tchebichef moments from 3D object by using the weight function of Krawtchouk polynomials. Experiment results have shown the superiority of the proposed method in terms of object reconstruction comparing with Tchebichef moments.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121077919","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905563
H. Haddani, A. Elmoutaouakkil, F. Benzekri, H. Aghoutan, Farid Bourzgui
In life we find a lot of several problems that touch all domains. One of them is dental medicine, which was crashing into the mechanical treatment. Nowadays, the appearance of computers in orthodontics has provided a solution to various problems and has facilitated many operations. The objectives of this study is to find a virtual approximation to real orthodontics problems of teeth movement based on digital images take it with cone-beam computed tomography (CBCT) using a different methods to define the transformation that teeth must follow to return to the natural state started by a segmentation using one of the most important method named Watershed. All components of teeth displacement are combination of translations and rotations movement along the three axes. The result showed that the forces applied to the teeth in some positions could decrease number of translations and rotations to the decrease in simulation time.
{"title":"Quantification of 3d tooth movement after a segmentation using a Watershed 3d method","authors":"H. Haddani, A. Elmoutaouakkil, F. Benzekri, H. Aghoutan, Farid Bourzgui","doi":"10.1109/ICMCS.2016.7905563","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905563","url":null,"abstract":"In life we find a lot of several problems that touch all domains. One of them is dental medicine, which was crashing into the mechanical treatment. Nowadays, the appearance of computers in orthodontics has provided a solution to various problems and has facilitated many operations. The objectives of this study is to find a virtual approximation to real orthodontics problems of teeth movement based on digital images take it with cone-beam computed tomography (CBCT) using a different methods to define the transformation that teeth must follow to return to the natural state started by a segmentation using one of the most important method named Watershed. All components of teeth displacement are combination of translations and rotations movement along the three axes. The result showed that the forces applied to the teeth in some positions could decrease number of translations and rotations to the decrease in simulation time.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127172253","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905578
F. Semchedine, A. Moussaoui, K. Zouaoui, Sarra Mehamel
Ad hoc mobile network usually called MANET (Mobile Ad hoc Network) is an autonomous system of mobile nodes connected by wireless links and forms a temporary network with a variable topology. MANET work without preexisting fixed infrastructures and without a centralized administration. The performance of a MANET network is strictly related to the capacity of the routing protocol implemented to adapt itself to the unpredictable changes in the network topology and the link state. One of these routing protocols is OLSR (Optimized Link State Routing Protocol) which assumes that all the nodes are in a trusted environment. However OLSR is vulnerable to all kinds of malicious attacks. In this paper, we proposed a security mechanism that is an extension of OLSR, called CRY-OLSR. This new mechanism is based on an asymmetric cryptographic that allows the identification and then the isolation of malicious nodes in the network. The simulation results, using OPNET simulator, show the effectiveness of our mechanism.
Ad hoc移动网络通常称为MANET (mobile Ad hoc network)，是由无线链路连接的移动节点组成的自治系统，是一个具有可变拓扑结构的临时网络。MANET可以在没有预先存在的固定基础设施和集中管理的情况下工作。MANET网络的性能与所实现的路由协议适应网络拓扑和链路状态不可预测变化的能力密切相关。其中一种路由协议是OLSR(优化链路状态路由协议)，它假设所有节点都处于可信环境中。然而，OLSR容易受到各种恶意攻击。在本文中，我们提出了一种安全机制，它是OLSR的扩展，称为CRY-OLSR。这种新机制基于非对称加密，允许识别和隔离网络中的恶意节点。利用OPNET仿真器进行了仿真，验证了该机制的有效性。
{"title":"CRY OLSR: Crypto Optimized Link State Routing for MANET","authors":"F. Semchedine, A. Moussaoui, K. Zouaoui, Sarra Mehamel","doi":"10.1109/ICMCS.2016.7905578","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905578","url":null,"abstract":"Ad hoc mobile network usually called MANET (Mobile Ad hoc Network) is an autonomous system of mobile nodes connected by wireless links and forms a temporary network with a variable topology. MANET work without preexisting fixed infrastructures and without a centralized administration. The performance of a MANET network is strictly related to the capacity of the routing protocol implemented to adapt itself to the unpredictable changes in the network topology and the link state. One of these routing protocols is OLSR (Optimized Link State Routing Protocol) which assumes that all the nodes are in a trusted environment. However OLSR is vulnerable to all kinds of malicious attacks. In this paper, we proposed a security mechanism that is an extension of OLSR, called CRY-OLSR. This new mechanism is based on an asymmetric cryptographic that allows the identification and then the isolation of malicious nodes in the network. The simulation results, using OPNET simulator, show the effectiveness of our mechanism.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124910563","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905612
Hicham Akhamal, Mostafa Chakir, H. Qjidaa
In this paper, a new type of a 90nm CMOS LDO regulator with high load regulation using a gain goost-up technique. The development of low drop-out (LDO) regulator architectures in the power management family is necessary to reduce the standby power of portable applications such as cellular phones and PDAs. In essence, this LDO regulator suffers from an inherent load regulation which impedes to work under various applications. Indeed, this paper discusses a technique that enables the practical realizations of high Load regulation LDO's at low voltages. The objective of this research is to develop novel LDO regulators that can achieve a high precision of LDO which requires a high loop gain performance. Moreover, one of the performances which is enhanced by the augmentation of dc open loop gain is the load regulation. The LDO is implemented in 90 nm CMOS technology and achieves a power-supply rejection ratio better than −70 dB up to 100 KHz for load currents up to 100 mA. The voltage regulator provides maximum 110 mA current, moreover with a 1.2V supply voltage, thus this LDO regulator providing an output of 1 V with a 200mV drop-out voltage.
{"title":"A 90nm CMOS «LDO» regulator with high load regulation using a gain boost-up technique","authors":"Hicham Akhamal, Mostafa Chakir, H. Qjidaa","doi":"10.1109/ICMCS.2016.7905612","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905612","url":null,"abstract":"In this paper, a new type of a 90nm CMOS LDO regulator with high load regulation using a gain goost-up technique. The development of low drop-out (LDO) regulator architectures in the power management family is necessary to reduce the standby power of portable applications such as cellular phones and PDAs. In essence, this LDO regulator suffers from an inherent load regulation which impedes to work under various applications. Indeed, this paper discusses a technique that enables the practical realizations of high Load regulation LDO's at low voltages. The objective of this research is to develop novel LDO regulators that can achieve a high precision of LDO which requires a high loop gain performance. Moreover, one of the performances which is enhanced by the augmentation of dc open loop gain is the load regulation. The LDO is implemented in 90 nm CMOS technology and achieves a power-supply rejection ratio better than −70 dB up to 100 KHz for load currents up to 100 mA. The voltage regulator provides maximum 110 mA current, moreover with a 1.2V supply voltage, thus this LDO regulator providing an output of 1 V with a 200mV drop-out voltage.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115015527","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 : 2016-09-01DOI: 10.1109/ICMCS.2016.7905621
Karim Abouelmehdi, A. B. Hssane, Hayat Khaloufi, M. Saadi
With the growing development of data, it has become increasingly vulnerable and exposed to malicious attacks. These attacks can damage the essential properties such as confidentiality, integrity and availability of information systems. To deal with these malicious intents, it is necessary to develop effective protection mechanisms. In this paper we will indicate the main risks arising in Big Data and existing security mechanisms, we focus on Hadoop security and its components because it remains the required Framework for the management and the processing of big data.
{"title":"Big data emerging issues: Hadoop security and privacy","authors":"Karim Abouelmehdi, A. B. Hssane, Hayat Khaloufi, M. Saadi","doi":"10.1109/ICMCS.2016.7905621","DOIUrl":"https://doi.org/10.1109/ICMCS.2016.7905621","url":null,"abstract":"With the growing development of data, it has become increasingly vulnerable and exposed to malicious attacks. These attacks can damage the essential properties such as confidentiality, integrity and availability of information systems. To deal with these malicious intents, it is necessary to develop effective protection mechanisms. In this paper we will indicate the main risks arising in Big Data and existing security mechanisms, we focus on Hadoop security and its components because it remains the required Framework for the management and the processing of big data.","PeriodicalId":345854,"journal":{"name":"2016 5th International Conference on Multimedia Computing and Systems (ICMCS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116089451","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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