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2011 IEEE Recent Advances in Intelligent Computational Systems最新文献

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Integrating online learning technology with computational fluid dynamics to control combustion process 将在线学习技术与计算流体动力学相结合,控制燃烧过程
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069323
X. Liu, R. Bansal
The work presented in this paper has been developed aiming at how to integrate an online learning controller with an online simulation module to control a complex combustion process, in which some critical process variables which are not easy to be measured using industry instruments. First, it is intended to design a neural network based adaptive controller which owns the ability of learning a real time process. This work consists of designing an online indirect adaptive controller based on radial basis function (RBF) and combining the controller with a numerical combustion process simulated using computational fluid dynamics (CFD). Secondly, the integrated system is simulated in Simulink. Finally, another proportional-integral-derivation (PID) controller is built which substitutes the proposed online learning controller combined with CFD based simulation module to test the proposed control system. The performance of the two different controllers is compared and the results show that the online learning controller is more efficient than PID controller. Moreover, all the work show encouraging results that integrating online learning controller with CFD based online simulation module can provide a new strategy to control a complex combustion process in which instrument reading data is difficult to obtain.
本文提出的工作旨在如何将在线学习控制器与在线仿真模块集成在一起,以控制复杂的燃烧过程,其中一些关键过程变量不易使用工业仪器测量。首先,设计了一种具有实时过程学习能力的基于神经网络的自适应控制器。本文设计了一种基于径向基函数(RBF)的在线间接自适应控制器,并将该控制器与计算流体力学(CFD)模拟的燃烧过程相结合。其次,在Simulink中对集成系统进行了仿真。最后,构建了另一个比例积分导数(PID)控制器,取代所提出的在线学习控制器,并结合基于CFD的仿真模块对所提出的控制系统进行了测试。比较了两种不同控制器的性能,结果表明在线学习控制器比PID控制器更有效。研究结果表明,将在线学习控制器与基于CFD的在线仿真模块相结合,可以为复杂燃烧过程中难以获得仪表读数数据的控制提供一种新的策略。
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引用次数: 0
Novel Data dependent pausible clocking scheme with pll calibration for GALS NOC 基于锁相环校准的新型GALS NOC数据相关可调时钟方案
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069422
V. Khetade, Rashtrasant Tukdoji Maharaj
Asynchronous design offers an attractive solution to overcome the problems faced by Networks-on-Chip (NoC) designers such as timing constraints. GALS Asynchronous NoCs requires efficient calibrated clocking scheme which has minimum drift, independent of Process Voltage Temperature(PVT), use minimum static and dynamic power. Clocking scheme should enable smooth synchronization among different clock domain. This paper first presents novel data dependent Pausible clocking scheme with Phase lock loop calibration. It calibrate for phase alignment. Local Clock is calibrated with reference clock generated from reference clock source with PLL mode for the desired frequency which is set with dealylined. This aligned local clock will use for clocking of synchronous module which is wrapped with asynchronous wrapper. It helps in avoiding metastability during crossing of data from one clock domain to another clock domain. Here we present the Petri net models of the Globally Asynchronous and Locally Synchronous(GALS) architectures for speed independent (SI). The models are feed into Petrify to produce logic equations for gate level implementation of asynchronous circuit. The synchronous and asynchronous circuits are implemented on technology of saed90nm provided with Synopsys university program. Simulation is carried on VCS of Synopsys and synthesis on design compiler.
异步设计为克服片上网络(NoC)设计人员面临的时间限制等问题提供了一个有吸引力的解决方案。GALS异步noc需要有效的校准时钟方案,具有最小的漂移,独立于过程电压温度(PVT),使用最小的静态和动态功率。时钟方案应使不同时钟域之间的同步平滑。本文首先提出了一种新的数据依赖锁相环校准的可调时钟方案。它用于相位校准。本地时钟是用参考时钟源产生的参考时钟进行校准的,参考时钟具有锁相环模式,所需频率由dealyline设置。这个对齐的本地时钟将用于用异步包装器包装的同步模块的时钟。它有助于避免数据在从一个时钟域到另一个时钟域的交叉过程中的亚稳态。在这里,我们提出了用于速度无关(SI)的全局异步和局部同步(GALS)架构的Petri网模型。将模型输入Petrify,生成异步电路门级实现的逻辑方程。同步和异步电路是在新思科技大学提供的saed90nm技术上实现的。在Synopsys的VCS上进行仿真,在设计编译器上进行综合。
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引用次数: 1
Reinforcement Learning solution for economic scheduling with stochastic cost function 具有随机成本函数的经济调度的强化学习解
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069350
Imthias Ahmed, F. Pazheri, Jasmin E A
Reinforcement Learning (RL) is a machine learning paradigm in which learning system learns which action to take in different situations by using a scalar evaluation received from the environment on performing an action. One major feature of this learning method is that it can learn in a stochastic environment. RL has been successfully applied to many power system optimization problems. Economic Scheduling is an important optimization problem to decide the amount of generation to be allocated to each generating unit so that the total cost of generation is minimized without violating system constraints. One scheduling issue is to accommodate the stochastic cost behaviour of the different generating units. In this paper we demonstrate the capacity of RL algorithm to account the stochastic nature of fuel cost.
强化学习(RL)是一种机器学习范式,其中学习系统通过使用从环境中获得的标量评估来学习在不同情况下采取何种行动。这种学习方法的一个主要特点是它可以在随机环境中学习。RL已成功地应用于许多电力系统优化问题。经济调度是一个重要的优化问题,其目的是在不违反系统约束的情况下,确定分配给各发电机组的发电量,使发电总成本最小。调度问题之一是适应不同发电机组的随机成本行为。在本文中,我们证明了RL算法考虑燃料成本随机性的能力。
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引用次数: 3
Generic protocol for seamless control of test instrumentation towards realization of electro optical sensors 实现光电传感器测试仪器无缝控制的通用协议
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069291
Amit Dave, Jitendra Sharma, Ashutosh Dutt, Anil Sukheja
Space Applications Center (SAC) of Indian Space Research Organization (ISRO) designs and develops electro optical sensors for earth observations and inter-planetary exploration missions. The sensors are fairly complex systems involving linear/area imaging elements, optics, electronics having large number of spectral bands, making their development a highly challenging task. To ensure in-orbit performance, the sensors are exhaustively tested on ground before being flown. XSCoPE (UNIX based Software System for Payload Evaluation) caters to the evaluation requirement throughout the development cycle of the cameras accomplishing data acquisition, parametric evaluation and optimizations. The paper describes an instrument control protocol (ICP) developed as part of the system and provides an abstraction layer in order to seamlessly interface with the test instrumentation having different underlying hardware interfaces. The protocol specifically developed for tests involving repeated measurements and automation, is scalable, generic in nature and can be adopted for different situations. Details of implementation of the protocol are given citing spectral response measurement test as a specific case to explain the idea.
印度空间研究组织(ISRO)的空间应用中心(SAC)设计和开发用于地球观测和行星际探测任务的光电传感器。传感器是相当复杂的系统,涉及线性/区域成像元件,光学,具有大量光谱带的电子元件,使其开发成为一项极具挑战性的任务。为了确保在轨道上的性能,传感器在飞行前在地面上进行了详尽的测试。XSCoPE(基于UNIX的有效载荷评估软件系统)满足了摄像机在整个开发周期中完成数据采集、参数评估和优化的评估需求。本文描述了作为系统一部分的仪器控制协议(ICP),并提供了一个抽象层,以便与具有不同底层硬件接口的测试仪器无缝接口。专门为涉及重复测量和自动化的测试开发的协议具有可扩展性和通用性,可用于不同的情况。以光谱响应测量测试为例,给出了协议的具体实现细节。
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引用次数: 1
Optimal placement and sizing of the DER in distribution systems using Shuffled Frog Leap Algorithm 用shuffle Frog Leap算法优化配电系统中DER的位置和大小
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069273
Chandrasekhar Yammani, Naresh Siripurapu, Sydulu Maheswarapu, S. Matam
Electrical power consumption is increasing day by day, complicating the operation of distribution systems. Distributed Energy Resource (DER) integration in distribution system is one of the options which give benefits like loss minimization, peak shaving, over load relieving and improved reliability. This paper presents an algorithm for optimal placement and size of the DER considering system loss minimization and voltage profile improvement as objective functions. This work is tested on IEEE 15, 33, 69 and 85 bus distribution systems. For all cases studied, a new heuristic optimization technique Shuffled Frog Leaping Algorithm (SFLA) is applied and current injection based distribution load flow method is employed. Further the results are compared with those results obtained by Particle swarm optimization (PSO) method and found to be encouraging.
电力消耗日益增加,使配电系统的运行复杂化。分布式能源集成在配电系统中具有最小化损耗、调峰、缓解过载和提高可靠性等优点。本文提出了一种以系统损耗最小化和电压分布改善为目标函数的分布式电源优化配置和优化尺寸的算法。该工作在IEEE 15、33、69和85总线配电系统上进行了测试。针对各种情况,本文采用了一种新的启发式优化技术——shuffle Frog leapalgorithm (SFLA),并采用了基于电流注入的配电网潮流法。并与粒子群优化(PSO)方法的结果进行了比较,得到了令人鼓舞的结果。
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引用次数: 21
Clinical decision support system based on Jordan/Elman neural networks 基于Jordan/Elman神经网络的临床决策支持系统
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069313
P. Kharat, Dr. Sanjay Vasant Dudul
Epilepsy is a common neurological disorder that is characterized by recurrent unprovoked seizures. About 40 to 50 million people worldwide have epilepsy. In this paper the authors present clinical decision support system (DSS) for the diagnosis of epilepsy. The validity of neural network to diagnose the epilepsy is checked and the most suitable neural network is recommended for the diagnosis of epilepsy. Three different diagnosis of Normal, Epileptic (interictal) and Epileptic (ictal), where estimated by a neural network. The results showed that we were able to achieve 100% results for testing data by using Jordan/Elman neural network
癫痫是一种常见的神经系统疾病,其特点是反复发作。全世界约有4000万至5000万人患有癫痫。本文介绍了一种用于癫痫诊断的临床决策支持系统(DSS)。检验神经网络诊断癫痫的有效性,并推荐最适合的神经网络用于癫痫的诊断。三种不同的诊断正常,癫痫(间歇)和癫痫(间歇),其中由神经网络估计。结果表明,使用Jordan/Elman神经网络对测试数据的准确率达到100%
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引用次数: 5
Design and development of FPGA based adaptive thresholder for image processing applications 基于FPGA的图像处理自适应阈值器的设计与开发
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069387
Azeema Sultana, M. Meenakshi
This paper presents design, implementation and real time validation of Image binarization process using weight based clustering algorithm, which uses the clustering property of neural network. The generic technique for image binarization requires choosing a threshold value and comparing the pixel values with the threshold and classifying as black and white. The proposed algorithm calculates a global optimum threshold by learning from the image background and foreground features. A simple two-weight neural network is implemented to cluster the foreground and background pixels. Here an adaptive thresholding technique based on competitive learning is selected for Weight Updating. The developed algorithm is implemented on a FPGA platform hardware system, which consists of two functional blocks. The first block is used to obtain the threshold value for the image frame; another block to apply the threshold value to the frame. This parallelism and the simple hardware component of both blocks make this approach suitable for real-time applications, while the performance remains comparable with the Otsu technique frequently used in off-line threshold determination. Results from the proposed algorithm are presented for numerous examples, both from simulations and experimentally using the FPGA.
本文利用神经网络的聚类特性,设计、实现了基于权重的聚类算法,并对其进行了实时验证。一般的图像二值化技术需要选择一个阈值,并将像素值与阈值进行比较,然后进行黑白分类。该算法通过学习图像的背景和前景特征,计算出全局最优阈值。一个简单的双权重神经网络实现了前景和背景像素的聚类。本文选择一种基于竞争学习的自适应阈值技术进行权重更新。所开发的算法在FPGA平台硬件系统上实现,该系统由两个功能模块组成。所述第一块用于获取所述图像帧的阈值;另一个块用于将阈值应用于帧。这种并行性和两个块的简单硬件组件使这种方法适合于实时应用程序,而性能仍然与离线阈值确定中经常使用的Otsu技术相当。本文给出了基于FPGA的仿真和实验结果。
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引用次数: 13
Lateral stability augmentation system for Micro air Vehicle - Towards autonomous flight 微型飞行器横向增稳系统——走向自主飞行
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069373
M. Meenakshi, M. Bhat
This paper presents a generic design methodology of robust fixed order H2 controller and onboard computer for Micro air Vehicles. The efficacy of the proposed method is demonstrated by designing a fixed order robust H2 stability augmentation system for lateral dynamics of a Micro air Vehicle, named Sarika-1. Strengthened Discrete Optimal Projection Equations, which approximate the first order necessary optimality condition, are used for the controller design. Effect of low frequency gust disturbance and high frequency sensor noise is alleviated through the output sensitivity and control sensitivity minimization. Digital Signal Processor (DSP) based onboard computer named Flight Instrumentation Controller (FIC) is designed to operate under automatic or manual mode. The controller is ported on to the flight computer, and subsequently, it is validated through the real-time hardware-in-loop-simulation. The responses obtained from the hardware-in-loop-simulation compares well with those obtained from the off-line simulation.
提出了一种用于微型飞行器的鲁棒定序H2控制器和机载计算机的通用设计方法。通过设计Sarika-1微型飞行器的定阶鲁棒H2稳定性增强系统,验证了该方法的有效性。采用近似一阶必要最优性条件的强化离散最优投影方程进行控制器设计。通过最小化输出灵敏度和控制灵敏度,减轻了低频阵风干扰和高频传感器噪声的影响。基于数字信号处理器(DSP)的机载计算机飞行仪表控制器(FIC)被设计为在自动或手动模式下运行。将该控制器移植到飞行计算机上,并通过实时硬件在环仿真对其进行验证。硬件在环仿真得到的响应与离线仿真得到的响应比较好。
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引用次数: 1
An optimized feature set for music genre classification based on Support Vector Machine 基于支持向量机的音乐类型分类优化特征集
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069383
P. Deepa, K. Suresh
Multimedia datas are growing at a fast rate. Music, which is one of the most popular types of online information, is a part of multimedia data and there are now hundreds of music streaming and downloading services operating on the World-Wide Web. Some of the music collections available are approaching the scale of ten million tracks and this has posed a major challenge for searching, retrieving, and organizing music content. So there is a need for automatic music classification methods for organizing these collections into different classes according to the certain information. In this work, a new effective feature extraction method is proposed for the classification of music according to the genre. Based on the calculated features, a new feature set is proposed to characterize the music content. The multi-class SVM is used for the classification purposes, which is one of the best classifying engines among the existing ones. Experiment result shows that the proposed method outperforms the existing methods implemented on the same database. A retrieval method is also proposed and its accuracy is verified using the proposed classification algorithm. The obtained accuracy indicates that the classifier and the retriever are very efficient compared to the existing ones.
多媒体数据正在快速增长。音乐是最受欢迎的在线信息类型之一,也是多媒体数据的一部分,现在有数百种音乐流媒体和下载服务在万维网上运行。一些可用的音乐收藏已经接近1000万首曲目的规模,这对搜索、检索和组织音乐内容提出了重大挑战。因此,需要一种音乐自动分类方法,将这些收藏根据一定的信息进行分类。本文提出了一种新的有效的基于体裁的音乐特征提取方法。在此基础上,提出了一个新的特征集来描述音乐内容。多类支持向量机用于分类,是现有分类引擎中性能最好的分类引擎之一。实验结果表明,该方法优于现有的在同一数据库上实现的方法。提出了一种检索方法,并用所提出的分类算法验证了检索方法的准确性。结果表明,与现有的分类器和检索器相比,该分类器和检索器是非常高效的。
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引用次数: 6
Weather Data Mining using Artificial Neural Network 基于人工神经网络的天气数据挖掘
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069300
Soumadip Ghosh, A. Nag, Debasish Biswas, J. Singh, S. Biswas, D. Sarkar, P. Sarkar
Weather Data Mining is a form of Data mining concerned with finding hidden patterns inside largely available meteorological data, so that the information retrieved can be transformed into usable knowledge. A variety of data mining tools and techniques are available in the industry, but they have been used in a very limited way for meteorological data. In this paper, a neural network-based algorithm for predicting the atmosphere for a future time and a given location is presented. We have used Back Propagation Neural (BPN) Network for initial modelling. The results obtained by BPN model are fed to a Hopfield Network. The performance of our proposed ANN-based method (BPN and Hopfield Network based combined approach) tested on 3 years weather data set comprising 15000 records containing attributes like temperature, humidity and wind speed. The prediction error is found to be very less and the learning converges very sharply. The main focus of this paper is based on predictive data mining by which we can extract interesting (non-trivial, implicit, previously unknown and potentially useful) patterns or knowledge from huge amount of meteorological data.
天气数据挖掘是数据挖掘的一种形式,涉及在大量可用的气象数据中发现隐藏的模式,以便将检索到的信息转换为可用的知识。行业中有各种各样的数据挖掘工具和技术,但它们用于气象数据的方式非常有限。本文提出了一种基于神经网络的预测未来某一特定时间和地点大气的算法。我们使用反向传播神经网络(BPN)进行初始建模。将BPN模型得到的结果馈送到Hopfield网络。我们提出的基于人工神经网络的方法(基于BPN和Hopfield网络的组合方法)的性能在3年的天气数据集上进行了测试,该数据集包含15000条记录,其中包含温度、湿度和风速等属性。预测误差非常小,学习收敛速度非常快。本文的主要重点是基于预测数据挖掘,通过预测数据挖掘,我们可以从大量的气象数据中提取有趣的(非平凡的,隐含的,以前未知的和潜在有用的)模式或知识。
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引用次数: 21
期刊
2011 IEEE Recent Advances in Intelligent Computational Systems
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