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2018 4th International Conference on Optimization and Applications (ICOA)最新文献

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A new fast brain tumor extraction method based on Nl-means and expectation maximization 一种基于均值和期望最大化的脑肿瘤快速提取方法
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370542
Sayd Tahri Yassine, Sandabad Sara, Cherradi Bouchaib, Raihani Abdelilah
{"title":"A new fast brain tumor extraction method based on Nl-means and expectation maximization","authors":"Sayd Tahri Yassine, Sandabad Sara, Cherradi Bouchaib, Raihani Abdelilah","doi":"10.1109/ICOA.2018.8370542","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370542","url":null,"abstract":"The scientific development has allowed researchers to touch on all areas of research, even the medicine field that has long been dominated by the doctors. The objective of our work is to help Radiologists in the treatment of brain MRI images, by detecting locating and giving the exact characteristics of a tumor areas. This is to cope with the very large number of images that have to be processed every day. Thus we can reduce the treatment time and the patients waiting time. The burden has become less heavy with the step automation. In this article we present a new fast and totally automatic tumor detection and extraction method, our work is divided into two parts: In the first time we will filter the image by the Nl-means filter to reduce the confusion risk and to soften the image. And in the second step we will classify the MRI into two classes (tumor classes and no tumor classes), this step will be done by the expectation maximization algorithm (EM). At the last time and to prove our method effectiveness a multiple evaluation criteria will be calculate, to compare our method to seven tumor extraction method which are the frequently extraction methods used in the literature and the tree last extraction methods proposed recently.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122922173","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}
引用次数: 5
Practices and usages of the cloud computing as a solution to rise to the challenge of the digitalization of Moroccan companies 云计算作为应对摩洛哥公司数字化挑战的解决方案的实践和使用
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370594
L. M'Rhaouarh, N. Chafiq, A. Namir
{"title":"Practices and usages of the cloud computing as a solution to rise to the challenge of the digitalization of Moroccan companies","authors":"L. M'Rhaouarh, N. Chafiq, A. Namir","doi":"10.1109/ICOA.2018.8370594","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370594","url":null,"abstract":"Nowadays, we are living at the crest of a revolution of communications. Digital communications and computers are making a tremendous impact on the world. Digital communication systems are ubiquitous in the modern world and include some of the most important technologies as the Cloud Computing that has recently emerged as a fascinating paradigm for managing and providing services in the Internet. This technology trend is attracting business owners as it eliminates the requirement for users to plan ahead for the supply. It is allowing companies to start from little resources and to enhance them only in case of a rise in the service demand. In this paper, we will study different aspects of the digital communication and we will analyze a study of the digital communication and the use of the Cloud Computing within Moroccan companies.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123638330","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}
引用次数: 3
Vision-based control of a flying spherical inverted pendulum 球面倒立摆飞行的视觉控制
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370509
Soukaina Krafes, Z. Chalh, A. Saka
{"title":"Vision-based control of a flying spherical inverted pendulum","authors":"Soukaina Krafes, Z. Chalh, A. Saka","doi":"10.1109/ICOA.2018.8370509","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370509","url":null,"abstract":"The aim of this paper is to control a spherical inverted pendulum on a quadrotor as a control actuator. The system is modeled using Euler Lagrange formulation considering both the dynamics. And due to the absence of sensors, that can measure states at the ball joints, we propose to use a vision system that will be placed over the Quadrotor in order to determinate the position of the pendulum. For the nonlinear control design, a three-level cascade strategy is proposed. Each level of the cascade system executes a control law designed through the method of backstepping. Simulation results are carried out to corroborate the proposed control strategy using Matlab/Simulink and the Virtual Reality Environment.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"318 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122323049","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}
引用次数: 3
A semantic smart interconnected healthcare system using ontology and cloud computing 使用本体和云计算的语义智能互联医疗保健系统
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370595
Ahmed Abatal, Hajar Khallouki, M. Bahaj
{"title":"A semantic smart interconnected healthcare system using ontology and cloud computing","authors":"Ahmed Abatal, Hajar Khallouki, M. Bahaj","doi":"10.1109/ICOA.2018.8370595","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370595","url":null,"abstract":"Smart healthcare is the service that offers health-related information and contents to patients and healthcare assistants without any limitations of time and space. In this paper, we develop a semantic smart interconnected healthcare based system which combines semantic web with cloud computing to enable the visualization, transmission and sharing of medical records and reports via the cloud and real time data collection and modeling through ontology.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126398726","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}
引用次数: 9
Fuzzy cardiovascular diagnosis system using clinical data 基于临床数据的模糊心血管诊断系统
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370549
O. Terrada, A. Raihani, O. Bouattane, B. Cherradi
{"title":"Fuzzy cardiovascular diagnosis system using clinical data","authors":"O. Terrada, A. Raihani, O. Bouattane, B. Cherradi","doi":"10.1109/ICOA.2018.8370549","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370549","url":null,"abstract":"Over the years, the use of artificial intelligence methods in medical analysis has flourished with the development of diagnostic tests and medical knowledge. Thus, the techniques of classification and detection have made much progress towards offering to medical experts and the doctors, organized and hierarchical systems to provide them with more information and knowledge for their daily function. Diagnostic assistance or diagnostic aid is an important tool for identifying abnormalities such as heart diseases. Having an appropriate model to increase the accuracy of the system, even in cases where inputs are generally low, is necessary. This paper aims to set up a medical diagnostic support system for the early detection of heart diseases, depending on cardiovascular risk factors to determine different clinical parameters useful for diagnosis. The validation of the suggested method is made using the sensitivity and specificity measures.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126577268","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}
引用次数: 30
A binarization method for degraded document image using artificial neural network and interpolation inpainting 基于人工神经网络和插值的退化文档图像二值化方法
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370550
N. Ouafek, M. Kholladi
{"title":"A binarization method for degraded document image using artificial neural network and interpolation inpainting","authors":"N. Ouafek, M. Kholladi","doi":"10.1109/ICOA.2018.8370550","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370550","url":null,"abstract":"The binarization of degraded document image is an important phase in the document analysis to extract text from the original image. For this purpose, we present a new multi-stage approach started by, a preprocessing phase to enhance the contrast of the original image and to eliminate noises. Then an interpolation inpainting is performing to create the background estimation and the foreground (text) estimation, that will be used as feature to train and test a supervised artificial neural network. the final stage is the use of the ANN to classify the pixels of the original image into 0 for black and 1 for white to get the final binary image. The suggested method has been tested and evaluated over DIBCO'2009 database, the results show the successful of the proposed approach.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115032163","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}
引用次数: 5
Validation of the GATE Monte Carlo code for radiation therapy: Varian Clinac2300C/D 验证放射治疗的GATE蒙特卡罗代码:Varian Clinac2300C/D
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370602
Zakaria Aitelcadi, Y. Toufique, A. El kharrim, S. Elmadani, A. Hilali, O. Bouhali
{"title":"Validation of the GATE Monte Carlo code for radiation therapy: Varian Clinac2300C/D","authors":"Zakaria Aitelcadi, Y. Toufique, A. El kharrim, S. Elmadani, A. Hilali, O. Bouhali","doi":"10.1109/ICOA.2018.8370602","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370602","url":null,"abstract":"Our work aimed to validate a GATE Modeled of a linear accelerator Clinac2300C/D using GATE 8.0 for 6MV photon beam. The reference measurements were determined by ionization chambers (PTW 31014) and were compared with GATE results. To reduce the computing time, the simulation tasks were splitted into several jobs to run simultaneously in our local cluster. The simulation parameters of GATE were adjusted to validate the accelerator modeling from percentage depth dose and profiles in the reference conditions. Good agreement between simulations and measurements in water was observed. A gamma index comparison was performed, and more than 97% of the points for all simulations passed the 2%/2 mm gamma criterion.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124590239","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}
引用次数: 3
Heuristics for dynamic load balancing in parallel computing 并行计算中动态负载平衡的启发式算法
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370587
Soumia Chokri, Sohaib Baroud, Safa Belhaous, Meriem Bentaleb, M. Mestari, Mohammed El Youssfi
{"title":"Heuristics for dynamic load balancing in parallel computing","authors":"Soumia Chokri, Sohaib Baroud, Safa Belhaous, Meriem Bentaleb, M. Mestari, Mohammed El Youssfi","doi":"10.1109/ICOA.2018.8370587","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370587","url":null,"abstract":"In parallel computing, dynamic load balancing of parallel codes is considered as a crucial problem. The goal is to distribute roughly equal amounts of computational load across a number of processors, while minimizing inter-processor communication. The objective is to optimize the time of the simulation execution. In some applications, the load grow in unpredictable way that is why another distribution must be computed dynamically. Graph partitioning and repartitioning are usually combined to solve the dynamic load-balancing problem. In this paper we study and evaluate heuristic partitioning methods such as region expansion, multilevel, kernighan-lin algorithms; And methods of repartitioning graphs with a comparison between these different methods. Advantages and limitations of different existing heuristics in the literature are cleared.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124875371","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}
引用次数: 5
Monte Carlo transport code using for simulating the neutron yield of spallation targets: Uranium, Thorium, and Tantalum are used for an accelerator based on high proton beam 用于模拟散裂靶中子产率的蒙特卡罗传输码:铀、钍和钽用于高质子束加速器
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370534
Abdessamad DIDI, R. Machrafi, M. Bencheikh, Hassane El Bekkouri, A. Dadouch, Otman Jai
{"title":"Monte Carlo transport code using for simulating the neutron yield of spallation targets: Uranium, Thorium, and Tantalum are used for an accelerator based on high proton beam","authors":"Abdessamad DIDI, R. Machrafi, M. Bencheikh, Hassane El Bekkouri, A. Dadouch, Otman Jai","doi":"10.1109/ICOA.2018.8370534","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370534","url":null,"abstract":"There are several heavy materials used as neutron spallation targets. The purpose of this study is to optimize the geometry of the neutron production target in the spallation process. using Monte-Carlo method-Particle code MCNP-6. The simulation includes Uranium, Thorium, and Tantalum targets. We investigated the flux of neutron produced as well as the neutron axial distribution by variation the spallation target, target height and proton beam energy. The proton beams of a 2 cm radius were assumed uniformly distributed.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129127283","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}
引用次数: 0
Comparison between techniques feeding for simple rectangular, circular and triangular patch antenna at 2.45 GHz 2.45 GHz简单矩形、圆形和三角形贴片天线馈电技术比较
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370552
Aziz Elfatimi, S. Bri, Adil Saadi
{"title":"Comparison between techniques feeding for simple rectangular, circular and triangular patch antenna at 2.45 GHz","authors":"Aziz Elfatimi, S. Bri, Adil Saadi","doi":"10.1109/ICOA.2018.8370552","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370552","url":null,"abstract":"In this paper, several simple microstrip antenna designs such as rectangular, circular, and triangular antennas for wireless communication applications are designed and simulated by the finite element method. In addition, this paper presents a comparative study between these compact antennas fed by microstrip, probe and proximity feeding techniques. These antennas are operating at a resonance frequency of 2.45 GHz and they are suitable for ISM and WLAN bands.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122871115","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}
引用次数: 7
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