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2022 8th International Conference on Optimization and Applications (ICOA)最新文献

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On intuitionistic fuzzy laplace transforms for solving intuitionistic fuzzy partial Volterra integro-differential equations 求解直觉模糊偏Volterra积分微分方程的直觉模糊拉普拉斯变换
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934409
Zineb Belhallaj, M. Elomari, S. Melliani, L. S. Chadli
In this paper, our purpose is to solve the intuitionistic fuzzy convolution Volterra partial integro-differential equation using the intuitionistic fuzzy Laplace transform (FLTM) method under strongly Hukuhara differentiability, the intuitionistic fuzzy convolution operator is proposed and the associated theorem is given which is helpful for solving IFPVIDEs. Finally, the effectiveness and applicability of the presented method is studied with the help of a numerical example.
在强Hukuhara可微性条件下,利用直觉模糊拉普拉斯变换(FLTM)方法求解直觉模糊卷积Volterra偏积分微分方程,提出了直觉模糊卷积算子,并给出了有助于求解IFPVIDEs的相关定理。最后,通过数值算例验证了所提方法的有效性和适用性。
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引用次数: 0
FEM-based Thermal Profile Prediction for Thermal Management of System-on-Chips 基于fem的片上系统热管理热剖面预测
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934719
A. Oukaira, Djallel Eddine Touati, Ahmad Hassan, Mohamed Ali, Y. Savaria, A. Lakhssassi
In this paper, we propose a thermal profile based on the finite element method (FEM). The proposed model is used to predict the temperature profile of the Xilinx™ SPARTAN-3E Field-Programmable Gate Array (FPGA) board during one day. In addition, thermal measurements based on infrared thermography are performed to validate our thermal profiles. These predicted profiles are compared to the temperature maps obtained with a thermal camera over 24 hours. A good agreement, with a maximum error of 1.8 °C, between the predicted and measured temperatures is obtained, which helps a lot in the proper functioning and the thermal management of the system-on-chips (SoC).
在本文中,我们提出了一个基于有限元法(FEM)的热剖面。该模型用于预测Xilinx™SPARTAN-3E现场可编程门阵列(FPGA)板在一天内的温度分布。此外,还进行了基于红外热成像的热测量来验证我们的热剖面。将这些预测剖面与热像仪在24小时内获得的温度图进行比较。预测温度与测量温度之间的最大误差为1.8°C,这对片上系统(SoC)的正常工作和热管理有很大帮助。
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引用次数: 2
An intelligent decision support system to anticipate the fall of a structure for paraplegic patients 为截瘫患者预测建筑物倒塌的智能决策支持系统
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934507
Khalil Ibrahim Hamzaoui, M. Gabli, L. Peyrodie
The Human posture is defined by the ability to maintain a stable vertical position of balance while keeping the feet fixed relative to the ground. An accurate understanding of the equilibrium conditions is an essential point to dimension and model the forces in the exoskeleton structures. Several experiments were performed in this sense. However, the resulting data are quite vague and uncertain, which could contribute to the error in the equilibrium description. In this paper, we focus on the folding. Our objective is to find the factors and mechanisms that influence this fallback in order to improve its anticipation. We have considered an approach based on fuzzy logic to better explain the uncertain and ambiguous aspect of the data, and on data mining algorithms to find the factors that influenced the fall. The results of our methodology showed promising associations to anticipate this type of fall.
人类的姿势是由保持稳定的垂直平衡位置的能力来定义的,同时保持脚相对于地面的固定。准确理解平衡条件是对外骨骼结构中的力进行量纲化和建模的关键。在这个意义上进行了几个实验。然而,所得数据相当模糊和不确定,这可能导致平衡描述的误差。在本文中,我们主要研究折叠。我们的目标是找到影响这种退步的因素和机制,以提高其预期。我们考虑了一种基于模糊逻辑的方法来更好地解释数据的不确定性和模棱两可的方面,并考虑了数据挖掘算法来找到影响下降的因素。我们的方法结果显示,预测这种类型的下降是有希望的。
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引用次数: 0
Waste solid management using Machine learning approch 利用机器学习方法进行废物固体管理
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934356
Gouskir Lahcen, Edahbi Mohamed, Gouskir Mohammed, Hachimi Hanaa, Abouhilal Abdelmoula
Information and communication technologies (ICT) allow the creation of smart cities to provide better quality services to citizens by exchanging information with the general public. In Morocco, the waste management is the primary challenge for the competent authority to reduce the amount of solid waste generated and satisfy the environmental regulations. The waste collection and treatment plan is the first pillar to optimize in order to better manage the quantities of waste produced by different industrial activities. Smart technologies were identified as alternative solution having the required qualifications for the creation the smart cities. They haves great potential to increase the efficiency and quality of waste collection. High costs and low efficiency are the two main challenges of smart garbage collection. An inconsequent management leads to resources waste at all levels. For example, the city resources are misused and a colossal amount of gasoline is wasted every day. This problem can be solved by managing and protecting all storage spaces using machine learning technics. A key goal of machine learning is the development of algorithms to make future predictions. Machine Learning Based Automatic Waste Recycling Framework has been proposed to classify and separate materials in a mixed recycling application to improve the separation of complex waste. The main purpose of the present paper is to assess machine learning algorithms used in recycling systems. As result, Machine Learning (ML) and Internet of Things (IoT) were proposed for smart waste management to surround the waste collection issue in the smart city. Powered devices can be installed in waste containers, including recycling bins, and provide real-time data on waste-generation.
信息和通信技术(ICT)允许创建智慧城市,通过与公众交流信息,为市民提供更优质的服务。在摩洛哥,废物管理是主管当局减少固体废物产生量和满足环境法规的主要挑战。废物收集和处理计划是优化的第一个支柱,以便更好地管理不同工业活动产生的废物数量。智能技术被确定为具有创建智慧城市所需资格的替代解决方案。它们在提高废物收集的效率和质量方面具有巨大潜力。高成本和低效率是智能垃圾收集面临的两大挑战。管理不善导致各级资源的浪费。例如,城市资源被滥用,每天大量的汽油被浪费。这个问题可以通过使用机器学习技术管理和保护所有存储空间来解决。机器学习的一个关键目标是开发算法来预测未来。提出了基于机器学习的自动废物回收框架,对混合回收应用中的物料进行分类和分离,以提高复杂废物的分离。本文的主要目的是评估回收系统中使用的机器学习算法。因此,机器学习(ML)和物联网(IoT)被提出用于智能废物管理,以围绕智慧城市的废物收集问题。动力装置可以安装在包括回收箱在内的废物容器中,并提供废物产生的实时数据。
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引用次数: 2
Agriculture 4.0: Literature Review and Application Challenges in the “Beni Mellal-Khenifra” region 农业4.0:“贝尼梅拉-肯尼夫拉”地区的文献综述与应用挑战
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934114
Khalid El Moutaouakil, B. Jabir, N. Falih
Agriculture 4.0 is a technological revolution in the agricultural field which consists of digitizing agricultural processes and taking advantage of advanced digital technologies in order to boost productivity, optimize resources, adapt to climate change and avoid food waste. Advanced technologies related to artificial intelligence, Big data Analytics, Cloud Computing and the Internet of Things constitute the lever of the agriculture transformation that allows a predictive and a strategic analysis of the massive data collected for smart and optimal management of agricultural plots. In this context, we share results from a detailed study on the latest advanced digital technologies used in the different agricultural sectors, the agricultural potential of the Beni Mellal-Khenifra region, the limits and the challenges facing the application of these technologies in the different agricultural sectors. This work is also intended to be a roadmap for researchers wishing to understand more about this new mode of agriculture.
农业4.0是农业领域的一场技术革命,它包括农业过程数字化和利用先进的数字技术,以提高生产力、优化资源、适应气候变化和避免粮食浪费。人工智能、大数据分析、云计算和物联网等先进技术构成了农业转型的杠杆,可以对收集的大量数据进行预测和战略分析,从而实现农业地块的智能和优化管理。在此背景下,我们分享了对不同农业部门使用的最新先进数字技术、贝尼梅拉-肯尼夫拉地区的农业潜力、这些技术在不同农业部门应用所面临的限制和挑战的详细研究结果。这项工作也旨在为希望更多地了解这种新农业模式的研究人员提供路线图。
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引用次数: 1
Accounting for large jobs for a single-processor online model 考虑单处理器在线模型的大型作业
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934593
E. Tarasova, N. Grigoreva
The paper proposes for consideration an online scheduling model for single processor with a deadlines and minimization of the total delay. A new LJSF algorithm has been proposed that takes into account the size of the jobs entering the process and is adapted to cases of large jobs. In comparison with existing algorithms, LJSF improved the results on average by 3% - 20% in more than 40% of examples for different testing groups, while in other cases the values of the objective functions were close with a deviation of no more than 2%.
提出了一种单处理机在线调度模型,该模型具有最后期限和总延迟最小。提出了一种新的LJSF算法,该算法考虑了进入进程的作业的大小,并适用于大型作业的情况。与现有算法相比,LJSF在不同测试组超过40%的样例中平均提高了3% - 20%的结果,而在其他情况下目标函数的值接近,偏差不超过2%。
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引用次数: 1
An Optimized Adaptive Learning Approach Based on Cuckoo Search Algorithm 基于布谷鸟搜索算法的优化自适应学习方法
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934280
El Miloud Smaili, Salma Azzouzi, My El Hassan Charaf
The rapid expansion of MOOCs (massive open online courses) allows learners to benefit from these courses by removing the barriers that obstruct the right to an open high-quality education. The courses offered on MOOC platforms are often free which has revolutionized this mode of distance learning, especially with the restrictions imposed by the advent of the COVID-19 pandemic. However, even though the number of registrants to MOOCs is quite considerable, only 10% of the learners complete the MOOC and obtain a certification. This phenomenon leads us to dig deeper to wonder about the means to avoid the high dropout rate of learners in such platforms. For this purpose, we suggest in this paper two complementary systems: a preventive system coupled with a proactive system to personalize the learners' pathways according to their specific needs and prior knowledge. The optimization of the pathways will be handled using a metaheuristic optimization algorithm called: Cuckoo Search Algorithm.
mooc(大规模开放在线课程)的迅速扩张,使学习者能够从这些课程中受益,消除了阻碍他们接受开放高质量教育的障碍。MOOC平台上提供的课程通常是免费的,这给这种远程学习模式带来了革命性的变化,特别是在COVID-19大流行到来的限制下。然而,尽管MOOC的注册人数相当可观,但只有10%的学习者完成了MOOC课程并获得了认证。这一现象促使我们更深入地思考如何避免此类平台中学习者的高辍学率。为此,我们在本文中提出了两个互补的系统:一个预防系统与一个主动系统相结合,根据学习者的具体需求和先验知识个性化学习者的路径。路径的优化将使用一种称为布谷鸟搜索算法的元启发式优化算法来处理。
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引用次数: 0
Optimal Additive C-Fuzzy Regression Trees for Software Development Effort Prediction 软件开发工作量预测的最优加性c -模糊回归树
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934558
Assia Najm, A. Zakrani, A. Marzak
There is evidence that precise prediction of the software development effort plays a crucial role in properly monitoring and managing software projects. Researchers have suggested many software effort estimation techniques. Nonetheless, none of these methods performed well in all circumstances. Ensemble models have been recently proposed in the literature to overcome the significant drawbacks of single machine learning approaches. In this study, we proposed a novel model, the ensemble of optimal additive cluster-based fuzzy regression trees for software development effort prediction. We performed an empirical evaluation using four datasets and the 30% holdout cross-validation technique. We compared the performance of our proposed ensemble model to the c-fuzzy regression tree, the bagged c-fuzzy regression tree model, the ensemble of optimal trees, random forest, and regression trees. Our suggested model outperforms all the compared models in Pred (25%), MMRE, and MdMRE in all employed datasets.
有证据表明,对软件开发工作的精确预测在适当地监视和管理软件项目中起着至关重要的作用。研究人员已经提出了许多软件工作量估算技术。然而,这些方法都不能在所有情况下都表现良好。最近,文献中提出了集成模型,以克服单一机器学习方法的显着缺点。在这项研究中,我们提出了一种新的模型,即基于最优加性聚类的模糊回归树的集合,用于软件开发工作量的预测。我们使用4个数据集和30%滞留交叉验证技术进行了实证评估。我们将我们提出的集成模型的性能与c-模糊回归树、袋装c-模糊回归树模型、最优树、随机森林和回归树的集成模型进行了比较。我们建议的模型在所有使用的数据集中优于Pred(25%)、MMRE和MdMRE的所有比较模型。
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引用次数: 0
Predicting Stock Market Price Movement using Machine Learning Techniques 使用机器学习技术预测股票市场价格走势
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934252
Ibtissam Medarhri, Mohamed Hosni, Najib Nouisser, F. Chakroun, Khalid Najib
Accurately predicting upcoming values of stock market index is a very difficult task due to instability of financial stock markets. In fact, an accurate prediction helps brokers to make adequate decision on buying or selling stock. Toward this aim, six Machine Learning (ML) techniques namely: Support Vector Regression (SVR), K-nearest Neighbor (Knn), Decision trees (DTs), Random Forest, Artificial Neural Networks (MLPs), Deep learning technique, were built to predict the future closing price for five companies that are part of the S&P500 index and the closing price of S&P500 index. Teen years of data and six new generated variables were used as inputs for our used models, which were assessed using two performance metrics and build using the grid search optimization technique. The results show that there is no best ML technique that may adopted to predict the trends of a given stock price. However, all the constructed techniques yield a very promising performance, and that the MLP and LSTM techniques, which belong to ANN family, may be considered as best techniques.
由于金融股票市场的不稳定性,准确预测股指的未来值是一项非常困难的任务。事实上,准确的预测有助于经纪人在买卖股票时做出适当的决定。为此,建立了六种机器学习(ML)技术,即:支持向量回归(SVR), k近邻(Knn),决策树(dt),随机森林,人工神经网络(mlp),深度学习技术,以预测标准普尔500指数组成部分的五家公司的未来收盘价和标准普尔500指数的收盘价。我们使用了十几年的数据和六个新生成的变量作为我们使用的模型的输入,这些模型使用两个性能指标进行评估,并使用网格搜索优化技术构建。结果表明,没有最好的机器学习技术可以用来预测给定股票价格的趋势。然而,所有构建的技术都产生了非常有希望的性能,并且属于神经网络家族的MLP和LSTM技术可以被认为是最好的技术。
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引用次数: 1
Numerical optimization methods for financial time series GARCH(p, q) model, a comparative approach 数值优化方法对金融时间序列GARCH(p, q)模型进行比较
Pub Date : 2022-10-06 DOI: 10.1109/ICOA55659.2022.9934755
A. Razouk, Rachid Ait daoud, Moulay El Mehdi Falloul
Maximum likelihood estimation (MLE) is often used in econometric and other statistical models despite its computational considerations and because of its strong theoretical appeal. The non-linear optimization discipline provides feasible alternative methods for calculating MLE's, especially when the special structure may be exploited, for example in probabilistic choice models. This paper examines the estimation of the financial time series model parameters named GARCH(p, q) using four numerical optimization methods and gives numerical comparisons of these methods. Among the issues considered in this paper are the theoretical background of MLE. Also, methods of approximating the Hessian are presented. These include (DFP and BFGS) and statistical approximations (BHHH).
最大似然估计(MLE)经常用于计量经济和其他统计模型,尽管它的计算考虑和因为它强大的理论吸引力。非线性优化学科为计算最大似然值提供了可行的替代方法,特别是当特殊结构可能被利用时,例如在概率选择模型中。本文研究了四种数值优化方法对金融时间序列模型参数GARCH(p, q)的估计,并对这些方法进行了数值比较。本文考虑的问题之一是最大似然学习的理论背景。并给出了逼近黑森线的方法。这些包括(DFP和BFGS)和统计近似值(BHHH)。
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引用次数: 0
期刊
2022 8th International Conference on Optimization and Applications (ICOA)
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