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2010 IEEE Conference on Cybernetics and Intelligent Systems最新文献

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Study on C. elegans behaviors using recurrent neural network model 用递归神经网络模型研究秀丽隐杆线虫的行为
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518591
Jian-xin Xu, Xin Deng, Dongxu Ji
With the complete knowledge on the anatomical nerve connections of the nematode Caenorhabditis elegans (C. elegans), the chemotaxis behaviors including food attraction and toxin avoidance, are modeled using dynamic neural networks (DNN). This paper first uses artificial DNN, with 7 neurons, to model chemotaxis behaviors with single sensor neurons. Real time recurrent learning (RTRL) is carried out to train the DNN weights. Next, this paper split the single sensor neuron into the left and right pair (dual-sensor neuron), with the assumption that C. elegans can distinguish the input difference between left and right, and then the model is applied to learn to reproduce the chemotaxis behaviors. The simulation results conclude that DNN can well model the behaviors of C. elegans from sensory inputs to motor outputs both in single sensor and dual-sensor neuron networks.
在全面了解秀丽隐杆线虫(C. elegans)解剖神经连接的基础上,利用动态神经网络(DNN)对其趋化行为(包括食物吸引和毒素回避)进行建模。本文首先使用7个神经元的人工DNN,对单个传感器神经元的趋化行为进行建模。采用实时循环学习(RTRL)训练深度神经网络的权值。接下来,本文假设秀丽隐杆线虫能够区分左右输入的差异,将单个传感器神经元拆分为左右对(双传感器神经元),然后应用该模型学习再现趋化行为。仿真结果表明,无论是在单传感器还是双传感器神经元网络中,深度神经网络都能很好地模拟秀丽隐杆线虫从感觉输入到运动输出的行为。
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引用次数: 4
Digital image edge detection using an ant colony optimization based on genetic algorithm 基于蚁群优化遗传算法的数字图像边缘检测
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518567
Javad Rahebi, Z. Elmi, Ali Farzam nia, Kamran Shayan
In this paper a new method for enhancement of digital image edge detection using ant colony optimization based on genetic algorithm has been used. In the proposed method first by the series of answers has been formed by artificial ants and then formed in a manner i.e. useful for genetic algorithm, then the answers played the role as initial population for genetic algorithm and the next population is made by genetic algorithm. Our method compared with Jing Tian method enjoys higher speed, less processing time and more answer's optimum. Also the proposed method has a better edge than other classical methods (such as sobel, etc).
本文提出了一种基于遗传算法的蚁群优化增强数字图像边缘检测的新方法。在该方法中,首先由人工蚂蚁形成一系列的答案,然后以一种对遗传算法有用的方式形成答案,然后这些答案作为遗传算法的初始种群,下一个种群由遗传算法产生。与景甜法相比,该方法具有速度快、处理时间短、最优解多的优点。同时,该方法比其他经典方法(如sobel等)具有更好的优势。
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引用次数: 22
Semi-supervised classification for intrusion Detection System in networks 网络入侵检测系统的半监督分类
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518571
N. Chaudhari, Aruna Tiwari, Urjita Thakar, Jaya Thomas
We propose a semi supervised classifier for intrusion detection. In our approach, we classify the data entering the computer network. To achieve this, we start with two broad classes of data namely, malicious data and good data. We use Support vector machine based classifier with spherical decision boundaries to classify a chosen subset of malicious data taken as training samples. In the Intrusion Detection System (IDS) database, all data identified as malicious data according to our classifier is included as signature (of attack). Using our classifier for testing the out-of-sample data samples, we observe that the accuracy of the system is 72% for web log data.
提出了一种用于入侵检测的半监督分类器。在我们的方法中,我们对进入计算机网络的数据进行分类。为了实现这一点,我们从两大类数据开始,即恶意数据和良好数据。我们使用基于球面决策边界的支持向量机分类器对作为训练样本的恶意数据子集进行分类。在入侵检测系统(IDS)的数据库中,所有根据我们的分类器识别为恶意数据的数据都被作为攻击的签名。使用我们的分类器对样本外数据样本进行测试,我们观察到系统对web日志数据的准确率为72%。
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引用次数: 1
Reachability analysis based model validation in systems biology 系统生物学中基于模型验证的可达性分析
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518589
Yang Yang, Haibo Lin
Systems biology is an emerging multi-disciplinary area, which aims to understand the underneath regulatory mechanisms of the biomolecular interaction networks inside the cell through dynamical system approaches. The first challenge in systems biology is how to obtain an accurate and predictable computational model for the biomolecular networks under study. However, due to limited experimental data, it is unavoidable to have incomplete or even wrong models. Therefore, it is a critical task in systems biology to check the model's correctness, which is called model validation problem. This paper will focus on this issue, and propose a (un-)reachability analysis based model validation method. In particular, Petri net models are investigated, and the validation process is evaluated by the reachability of state equations. It is shown that the reachability can be checked by the existence of integer solutions of Diophantine equations. Two methods are proposed to solve the equations. The first one is by Smith normal form test, and the other is by integer programming. Two case studies are provided to demonstrate these two approaches. These tests can screen out the unreachable states and offer the hints to modify the model structure, which provides us more insights of the regulatory mechanism and helps biologists to generate hypotheses and design experiments.
系统生物学是一个新兴的多学科领域,旨在通过动力系统方法了解细胞内生物分子相互作用网络的底层调控机制。系统生物学的第一个挑战是如何为所研究的生物分子网络获得一个准确和可预测的计算模型。然而,由于实验数据有限,难免会出现不完整甚至错误的模型。因此,检验模型的正确性是系统生物学中的一项重要任务,称为模型验证问题。本文将针对这一问题,提出一种基于(非)可达性分析的模型验证方法。特别地,研究了Petri网模型,并通过状态方程的可达性来评估验证过程。通过丢芬图方程整数解的存在性,证明了该方程的可达性。提出了两种求解方法。第一种是用Smith范式检验,另一种是用整数规划。本文提供了两个案例研究来演示这两种方法。这些测试可以筛选出不可达的状态,并提供修改模型结构的提示,使我们对调控机制有更多的了解,并有助于生物学家提出假设和设计实验。
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引用次数: 8
Development of a facial expression recognition system for the laughter therapy 笑声治疗面部表情识别系统的研制
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518563
Yu-Jie Li, Sun-Kyung Kang, Young-Un Kim, Sung-Tae Jung
This paper proposes a facial expression recognition system for the laughter therapy. The proposed system takes two steps: face detection and facial expression recognition. At the face detection stage, candidate facial areas are detected in real time from images taken by a camera in consideration of Haar-like features, followed by the application of a SVM(Support Vector Machine) classifier to detect face images in a more correct way. Next, histogram matching-based illumination normalization is used to mitigate the influence of lighting on the detected images. At the facial expression recognition stage, PCA (Principle Component Analysis) is used to capture features of the face, and real-time laugher recognition is made via a multi-layer perceptron artificial neural network. From the findings of this study, we conclude that the proposed method can improve facial expression recognition through illumination normalization based on histogram matching and by testing candidate facial images with a SVM.
提出了一种用于笑声治疗的面部表情识别系统。该系统分为两个步骤:人脸检测和面部表情识别。在人脸检测阶段,考虑haar样特征,从相机拍摄的图像中实时检测候选面部区域,然后应用支持向量机(SVM)分类器更准确地检测人脸图像。其次,使用基于直方图匹配的光照归一化来减轻光照对检测图像的影响。在面部表情识别阶段,采用主成分分析(PCA)捕捉人脸特征,并通过多层感知器人工神经网络进行实时笑声识别。从本研究的结果来看,我们认为该方法可以通过基于直方图匹配的光照归一化和使用支持向量机测试候选面部图像来提高面部表情识别。
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引用次数: 2
Dynamic shift mechanism of continuous attractors in a class of recurrent neural networks 一类递归神经网络中连续吸引子的动态移位机制
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518543
Haixian Zhang, Zhang Yi
Continuous attractors of recurrent neural networks (RNNs) have attracted extensive interests in recent years. It is often used to describe the encoding of continuous stimuli such as orientation, moving direction and spatial location of objects. This paper studies the dynamic shift mechanism of a class of continuous attractor neural networks. It shows that if the external input is a gaussian shape with its center varying along with time, by adding a slight shift to the weights, the symmetry of gaussian weight function is destroyed. Then, the activity profile will shift continuously without changing its shape, and the shift speed can be controlled accurately by a given constant. Simulations are employed to illustrate the theory.
递归神经网络(rnn)的连续吸引子近年来引起了广泛的关注。它通常用于描述物体的方向、运动方向和空间位置等连续刺激的编码。研究了一类连续吸引子神经网络的动态移位机制。结果表明,如果外部输入是中心随时间变化的高斯形状,通过对权值进行轻微的偏移,可以破坏高斯权值函数的对称性。然后,活动剖面将在不改变其形状的情况下连续移动,并且可以通过给定常数精确控制移动速度。仿真是用来说明理论。
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引用次数: 1
Horizon detection from pseudo spectra images of water scenes 水景伪光谱图像的地平检测
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518566
R. Walia, R. Jarvis
Horizon detection is a pre-cursor to vision processing in air and water robotics. This paper makes three contributions to horizon detection. First, a theoretical framework for generating pseudo spectra images (PSI), from spectrum analysis of XYZ color-space is presented. Second, wavelengths in the visible spectrum are identified, at which the PSI has similar intensities for sky and clouds. Generating PSI at these wavelengths minimizes artifacts due to clouds in the sky, resulting in well defined horizon. Third, fitting ellipses are presented as an alternate to Hough Transform for horizon detection. Ellipses have lower computational complexity than Hough Transform and can accommodate curved edges as candidates for horizon.
地平线检测是空气和水机器人视觉处理的前驱。本文对地平探测有三方面的贡献。首先,提出了基于XYZ色彩空间的光谱分析生成伪光谱图像的理论框架。其次,确定了可见光谱中的波长,在这些波长上,PSI对天空和云具有相似的强度。在这些波长产生PSI可以最大限度地减少由于天空中云层造成的伪影,从而产生清晰的地平线。第三,提出拟合椭圆作为霍夫变换的替代方法用于地平线检测。椭圆比霍夫变换具有更低的计算复杂度,并且可以容纳弯曲的边缘作为视界的候选者。
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引用次数: 5
Managing search in a partitioned Search space in GA 遗传算法中分区搜索空间的搜索管理
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518570
Farhad Nadi, Ahamad Tajudin Khader
Converging to suboptimal solutions in genetic algorithms prevents the search from reaching the global optima. Search space could have several suboptimal but one optimal solution. As the suboptimal solutions are within the search space, dividing the search space would bound them in different divisions. Thus, searching in each division separately would increase the probability of reaching the global optima. In other words, the optimal solution would be bounded in one of the divisions and then searching that division would result in finding the optimal solution. Although, the suboptimal solutions could be in the same division as optimal solution but the chance of finding the optimal solution in this case would be more compared to the cases that have no division. The proposed methodology divide the search space into partitions called regions. Individuals will be assigned to each region. The search continues while each set of individuals are focused in searching a region. Preliminary results shows a fair improvement in the performance and efficiency compared to genetic algorithm.
遗传算法收敛到次优解会使搜索无法达到全局最优。搜索空间可能有多个次优解,但只有一个最优解。由于次优解在搜索空间内,划分搜索空间会将它们划分为不同的分区。因此,在每个分区中单独搜索将增加达到全局最优的概率。换句话说,最优解在其中一个除法中有界然后搜索这个除法就能找到最优解。虽然次优解可能和最优解在同一个除法中但在这种情况下找到最优解的机会比没有除法的情况要大。提出的方法将搜索空间划分为称为区域的分区。个人将被分配到每个区域。搜索继续进行,而每组人都专注于搜索一个区域。初步结果表明,与遗传算法相比,该算法在性能和效率上都有较大的提高。
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引用次数: 2
An alternative approach to design a Fuzzy Logic Controller for an autonomous underwater vehicle 一种自主水下航行器模糊控制器的设计方法
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518556
M. Amjad, K. Ishaque, S. Abdullah, Z. Salam
This paper presents a control scheme that provides an efficient and a simple way to design a Fuzzy Logic Controller (FLC) for the autonomous underwater vehicle (AUV). The proposed method, known as the Single Input Fuzzy Logic Controller (SIFLC), condenses the conventional two-input FLC (CFLC) to a single input single output (SISO) controller. The SIFLC significantly reduces the rules and simplifies the tuning of control parameters. Practically, it can be easily implemented by a look-up table using a low cost microprocessor due to its piecewise linear control surface. To verify the effectiveness of the designed controller, the control algorithm is simulated using the Marine Systems Simulator (MSS) on the Matlab/Simulink® platform. The result clearly indicates that both the SIFLC and CFLC give almost identical response to the same input sets. However SIFLC requires very minimum tuning effort and its execution time is in the orders of two magnitudes less than CFLC.
本文提出了一种控制方案,为自主水下航行器(AUV)模糊控制器(FLC)的设计提供了一种高效、简单的方法。所提出的方法被称为单输入模糊逻辑控制器(SIFLC),它将传统的双输入模糊逻辑控制器(CFLC)压缩为单输入单输出(SISO)控制器。SIFLC大大减少了规则,简化了控制参数的整定。实际上,由于其分段线性控制面,它可以很容易地通过使用低成本微处理器的查找表来实现。为了验证所设计控制器的有效性,利用Matlab/Simulink®平台上的船舶系统模拟器(MSS)对控制算法进行了仿真。结果清楚地表明,SIFLC和CFLC对相同输入集的响应几乎相同。然而,SIFLC只需要很少的调优工作,其执行时间比CFLC少两个数量级。
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引用次数: 17
Swiping with luminophonics 用发光音响刷屏
Pub Date : 2010-06-28 DOI: 10.1109/ICCIS.2010.5518580
Shern Shiou Tan, Tomas Henrique Bode Maul, Neil Mennie, P. Mitchell
Luminophonics is a system that aims to maximize cross-modality conversion of information, specifically from the visual to auditory modalities, with the motivation to develop a better assistive technology for the visually impaired by using image sonification techniques. The project aims to research and develop generic and highly-configurable components concerned with different image processing techniques, attention mechanisms, orchestration approaches and psychological constraints. The swiping method that is introduced in this paper combines several techniques in order to explicitly convert the colour, size and position of objects. Preliminary tests suggest that the approach is valid and deserves further investigation.
Luminophonics是一个旨在最大限度地实现信息跨模态转换的系统,特别是从视觉到听觉的模态转换,其动机是通过使用图像超声技术为视障人士开发更好的辅助技术。该项目旨在研究和开发通用的、高度可配置的组件,涉及不同的图像处理技术、注意机制、编排方法和心理约束。本文介绍的滑动方法结合了几种技术,以显式地转换对象的颜色、大小和位置。初步试验表明,该方法是有效的,值得进一步研究。
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引用次数: 5
期刊
2010 IEEE Conference on Cybernetics and Intelligent Systems
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