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A Model for Performance Measure of Industrial Robots 工业机器人性能测量模型
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.118
B. B. Choudhury, Anshuman Mishra, B. Biswal
Robots play a major role in flexible manufacturing system (FMS) and the performance measure of a robot is one of the critical issues in the design of robotic work cells. Performance measure and selection of robot for an application is usually done based on experience, intuition and at most using the kinematic considerations like workspace, manipulability, etc. This problem has become more cumbersome in recent years due to increasing complexity, available features, and facilities offered by different robotic products. In the present work a systematic procedure is developed for performance measure of robots based on various attributes. Subsequently, the selection procedure proceeds to select the alternatives in the shortlist by employing different attributes based specification methods. This is an attempt to create exhaustive procedure by identifying maximum possible number of attributes for robot manipulators. The selection procedures are illustrated with example.
机器人在柔性制造系统(FMS)中起着重要的作用,机器人的性能测量是机器人工作单元设计中的关键问题之一。机器人的性能测量和选择通常基于经验和直觉,最多使用运动学考虑,如工作空间,可操作性等。近年来,由于不同机器人产品提供的复杂性、可用功能和设施的增加,这个问题变得更加麻烦。在本工作中,开发了一个基于各种属性的机器人性能测量系统程序。随后,选择过程继续通过使用基于不同属性的规范方法在候选列表中选择备选项。这是一个尝试通过识别机器人操作器的最大可能数量的属性来创建详尽的过程。通过实例说明了选择过程。
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引用次数: 2
An Improvement in Apriori Algorithm Using Profit and Quantity 基于利润和数量的Apriori算法改进
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.46
P. Sandhu, D. Dhaliwal, S. Panda, A. Bisht
Association rule mining has been an area of active research in the field of knowledge discovery and numerous algorithms have been developed to this end. Of late, data mining researchers have improved upon the quality of association rule mining for business development by incorporating the influential factors like value (utility), quantity of items sold (weight) and more, for the mining of association patterns. In this paper, we propose an efficient approach based on weight factor and utility for effectual mining of significant association rules. Initially, the proposed approach makes use of the traditional Apriori algorithm to generate a set of association rules from a database. The proposed approach exploits the anti-monotone property of the Apriori algorithm, which states that for a k-itemset to be frequent all (k-1) subsets of this itemset also have to be frequent. Subsequently, the set of association rules mined are subjected to weight age (W-gain) and utility (U-gain) constraints, and for every association rule mined, a combined Utility Weighted Score (UW-Score) is computed. Ultimately, we determine a subset of valuable association rules based on the UW-Score computed. The experimental results demonstrate the effectiveness of the proposed approach in generating high utility association rules that can be lucratively applied for business development.
关联规则挖掘一直是知识发现领域的一个活跃研究领域,并为此开发了许多算法。最近,数据挖掘研究人员通过将价值(效用)、销售物品数量(权重)等影响因素纳入关联模式挖掘,提高了业务开发关联规则挖掘的质量。本文提出了一种基于权重因子和效用的有效关联规则挖掘方法。该方法首先利用传统的Apriori算法从数据库中生成一组关联规则。提出的方法利用了Apriori算法的反单调性,即对于k-项集来说,该项集的所有(k-1)个子集也必须是频繁的。随后,挖掘的关联规则集受到权重年龄(W-gain)和效用(U-gain)约束,并且对于挖掘的每个关联规则,计算组合效用加权分数(UW-Score)。最后,我们根据计算的UW-Score确定有价值的关联规则子集。实验结果证明了该方法在生成高效用关联规则方面的有效性,这些关联规则可以有效地应用于业务开发。
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引用次数: 26
Animal Situation Tracking Service Using RFID, GPS, and Sensors 使用RFID, GPS和传感器的动物状况跟踪服务
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.40
So-Hyeon Kim, Do-Hyeun Kim, Hee-Dong Park
With the technology of sensor, RFID, and GPS, many researches are recently being carried out on monitoring animal behavior and interactions with the environment. Plus, the technology is applicable to develop new zoological systems for animal trace ability, identification, and anti-theft. Yet, there is a lack of studies of providing zoos with intelligent animal tracking and management services based on RFID, GPS, and sensors. Accordingly, in this paper, we propose an intelligent animal situation tracking service for zoological gardens, based on GPS, RFID, and sensors. Firstly, we present a service scenario of animal situation tracking and introduce the tracking system configuration. The proposed system can provide real-time animal situation information such as the current location, bodily temperature, and pictures. Plus, it can track the animals based on the information even when they escape their cages. Next, we design and implement a prototype of the proposed animal situation tracking system.
近年来,随着传感器、RFID和GPS等技术的发展,人们对动物行为及其与环境的相互作用进行了许多研究。此外,该技术适用于开发新的动物追踪能力,识别和防盗动物学系统。然而,为动物园提供基于RFID、GPS和传感器的智能动物跟踪和管理服务的研究还很缺乏。为此,本文提出了一种基于GPS、RFID和传感器的智能动物园动物状态跟踪服务。首先,提出了一种动物状态跟踪的服务场景,并介绍了跟踪系统的配置。该系统可以提供实时的动物状况信息,如当前位置、体温和图片。此外,它可以根据这些信息跟踪动物,即使它们逃离了笼子。接下来,我们设计并实现了所提出的动物状态跟踪系统的原型。
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引用次数: 56
Opportunistic Spectrum Access in OFDMA Systems OFDMA系统中的机会频谱接入
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.30
Shehzad Ahmad, A. Shahid, R. M. Ahmad, Adeel Akram, M. A. Nasim
This paper presents the novel idea for opportunity detection (detecting unoccupied sub-carriers/sub-channels) in downlink (DL) orthogonal frequency division multiple access (OFDMA) systems using cognitive radio (CR) sensing techniques and sub-channel utilization history information. Assuming availability of information about the basic parameters of the primary system as well as time and frequency synchronization of CR user with primary system, three techniques have been proposed for detection of unoccupied sub-channels in DL OFDMA systems: 1) Detection Method— it identifies unoccupied sub-carriers/sub-channel in DL OFDMA systems by exploiting the CR sensing techniques (i.e. matched filter and energy detection). 2) Prediction Method— it forecasts the future sub-channel state (empty or occupied) by classifying sub-channel history into different traffic patterns using ‘Traffic Classification Algorithm’. 3) Hybrid of Detection and Prediction Method— it also utilizes ‘Traffic Classification Algorithm’ to decide when to use detection and prediction methods in order to determine either sub-channel will remain empty or occupied in next time slot.
本文提出了一种利用认知无线电(CR)感知技术和子信道利用历史信息在下行正交频分多址(OFDMA)系统中进行机会检测(检测未被占用的子载波/子信道)的新思路。假设主系统基本参数信息的可用性,以及CR用户与主系统的时间和频率同步,提出了三种检测DL OFDMA系统中未占用子信道的技术:1)检测方法-利用CR感知技术(即匹配滤波器和能量检测)识别DL OFDMA系统中未占用的子载波/子信道。2)预测方法-它通过使用“流量分类算法”将子通道历史分类为不同的流量模式来预测未来子通道状态(空或被占用)。3)检测和预测方法的混合-它还利用“流量分类算法”来决定何时使用检测和预测方法,以确定哪个子通道将在下一个时隙保持空或被占用。
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引用次数: 0
Part-of-Speech Approach to Evaluation of Textbook Reviews 基于词性的教材评价方法
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.31
P. Tanawongsuwan
Book reviews are comments written by readers regarding their experiences about a particular book. Some reviews contain useful information and may help prospective buyers in making a purchase decision, while some are viewed as less helpful, such as, complaints about shipping delay. The review’s content is the key to differentiating them. Presenting a methodology for evaluating the helpfulness of a book view, this research employed the part-of-speech (POS) approach. A review’s content initially underwent a POS tagging process. Various features were then extracted and used as attributes for classification algorithms. The relation between adjectives and review’s helpfulness was also analyzed. The system’s effectiveness was assessed using textbook reviews obtained from an on-line bookstore.
书评是读者就他们对某本书的体验所写的评论。有些评论包含有用的信息,可能会帮助潜在买家做出购买决定,而有些评论则被认为没有什么帮助,比如对发货延迟的抱怨。评论的内容是区分他们的关键。本研究采用词性(POS)方法,提出了一种评估书籍观点的有用性的方法。评论的内容最初经历了一个POS标记过程。然后提取各种特征并将其用作分类算法的属性。分析了形容词与评论的有用性之间的关系。该系统的有效性是通过从网上书店获得的教科书评论来评估的。
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引用次数: 6
Location Dependent Query Processing – Issues, Challenges and Applications 位置相关查询处理——问题、挑战和应用
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.39
Kahkashan Tabassum, Maniza Hijab, A. Damodaram
The growth in the number of mobile users is motivating the new technology of mobile computing to offer many new types of services like location-based services that pose many challenging problems for location-dependent query processing and data management. In this paper, we discuss the various challenges in distributed processing of location-dependent continuous queries in a mobile environment by studying the different scenarios in which both the querying unit and the object being queried are in motion. Then we proceed to classify different types of location dependent queries. We discuss the different solutions to solve these complex location dependent queries using caching techniques that facilitate fast access to data and at the same time minimize the massive network traffic generated due to location dependent query processing in a wireless environment. To further reduce the data transfer the query results are cached so that these results are reusable. The conventional query processing method like join processing of data from mobile units and server is directly applied in the mobile environment. Additionally this paper also focuses on the methods of location-dependent query processing and applications. The main goal of this paper is to study the various location dependent query processing methods along with data management problems involved in evaluation of Location-dependent queries and classify them.
移动用户数量的增长促使移动计算的新技术提供了许多新的服务类型,如基于位置的服务,这给依赖于位置的查询处理和数据管理带来了许多具有挑战性的问题。在本文中,我们通过研究查询单元和被查询对象都处于运动状态的不同场景,讨论了在移动环境中分布式处理位置依赖连续查询的各种挑战。然后我们继续对不同类型的位置相关查询进行分类。我们将讨论使用缓存技术来解决这些复杂的位置相关查询的不同解决方案,这些技术可以促进对数据的快速访问,同时最大限度地减少由于无线环境中位置相关查询处理而产生的大量网络流量。为了进一步减少数据传输,查询结果被缓存,以便这些结果可重用。将传统的对移动设备和服务器数据进行联接处理的查询处理方法直接应用到移动环境中。此外,本文还重点介绍了位置相关查询的处理方法和应用。本文的主要目的是研究各种位置相关查询处理方法,以及位置相关查询评估中涉及的数据管理问题,并对其进行分类。
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引用次数: 14
Prioritized Quality of Service Support Medium Access Control for Real Time Flows 优先服务质量支持实时流的介质访问控制
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.69
Jims Marchang, Sukumar Nandi, N. Sarma
In multi-hop wireless mobile ad hoc network each node is capable of sending, receiving and forwarding data packets. Since it is an infrastructure-less networks, it makes it feasible to set up at anyplace and at any time. Supporting Quality of Service (QoS) in such network is a challenge due to limited available resources like bandwidth etc. This paper describes a new approach of Medium Access Control (MAC) which supports QoS for real time applications. Each node is assigned priorities dynamically based on their roles (as sender, receiver or forwarding node) and type of traffics (Real Time Packet – RTP or Non Real Time Packet - NRTP) in the networks. This approach enhances QoS for Real Time data in terms of bandwidth utilization and delay. This ensures higher network throughput with lower delay for packet delivery. New queue has been designed to fit in to the proposed MAC protocol. Simulation shows that our proposed MAC performs much better than the standard IEEE 802.11 DCF in terms of average throughput, delay, MAC overheads in support of RTP and fairness within a class of traffic also increases.
在多跳无线移动自组网中,每个节点都具有发送、接收和转发数据包的能力。由于它是一个无基础设施的网络,因此可以在任何地点和任何时间进行设置。由于带宽等可用资源有限,在这种网络中支持服务质量(QoS)是一个挑战。本文提出了一种新的支持QoS的实时应用介质访问控制(MAC)方法。每个节点根据其在网络中的角色(发送节点、接收节点或转发节点)和流量类型(实时报文RTP或非实时报文NRTP)动态分配优先级。这种方法在带宽利用率和延迟方面增强了实时数据的QoS。这确保了更高的网络吞吐量和更低的数据包传输延迟。为了适应提议的MAC协议,设计了新的队列。仿真表明,我们提出的MAC在平均吞吐量、延迟、支持RTP的MAC开销和一类流量内的公平性方面都比标准的IEEE 802.11 DCF性能好得多。
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引用次数: 0
Stock Exchange of Thailand Index Prediction Using Back Propagation Neural Networks 利用反向传播神经网络预测泰国证券交易所指数
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.21
P. Sutheebanjard, W. Premchaiswadi
In this paper, we investigate predicting the Stock Exchange of Thailand Index movement. Currently, there are two stock markets in Thailand; the Stock Exchange of Thailand (SET) and the Market for Alternative Investment (MAI). This paper focuses on the movement of the Stock Exchange of Thailand Index (SET Index). The back propagation neural network (BPNN) technology was employed in forecasting the SET index. An experiment was conducted by using data of 124 trading days from 2 July 2004 to 30 December 2004. The data were divided into two groups: 53 days for BPNN training and 71 days for testing. The experimental results show that the BPNN successfully predicts the SET Index with less than 2% error. The BPNN also achieves a lower prediction error when compared with the Adaptive Evolution Strategy, but a higher prediction error when compared with the (1+1) Evolution Strategy.
本文研究了泰国证券交易所指数走势的预测问题。目前,泰国有两个股票市场;泰国证券交易所(SET)和另类投资市场(MAI)。本文主要研究泰国证券交易所指数(SET指数)的走势。采用反向传播神经网络(BPNN)技术对SET指数进行预测。利用2004年7月2日至2004年12月30日124个交易日的数据进行实验。数据分为两组:BPNN训练53天,测试71天。实验结果表明,BPNN能够成功预测SET指数,误差小于2%。与自适应进化策略相比,BPNN的预测误差较小,但与(1+1)进化策略相比,预测误差较大。
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引用次数: 47
Breast Carcinoma Pigeonholing and Vaticination Using an Interspersed and Malleable Approach 用一种分散和可延展性的方法对乳腺癌进行分类和诊断
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.96
H. Mathkour, Muneer Ahmad
Breast carcinoma is considered as the second major cause of death in females. Malignant tumor affects some tissues of breast and may spread over neighboring tissues. Early detection of this malignant mass is very important to save the precious lives. Although the death rate is reduced by application of modern tools yet research for optimal solutions is still in progress to bring more comprehensive mechanisms. In this paper, we are proposing an interspersed approach for breast tumor pigeonholing and vatic nation. We trained our neural network over datasets obtained from the University of Wisconsin Hospitals, Madison and tested over many other datasets with diverse network architectures. The proposed approach was sectioned in applications of data filters. Our network architecture showed 96% of malignant and 99.45% of benign diagnosis for training confusion matrix and 100% for malignant and 97% benign for cross validation matrix. We have given detailed experimentations in light of training and cross validation mean square errors and demonstrated results even for minute curve fluctuations.
乳腺癌被认为是女性死亡的第二大原因。恶性肿瘤影响乳房的某些组织,并可能扩散到邻近组织。早期发现这种恶性肿块对挽救宝贵的生命至关重要。尽管现代工具的应用降低了死亡率,但仍在进行最佳解决办法的研究,以建立更全面的机制。在本文中,我们提出了一种乳腺肿瘤分类和分类的分散方法。我们使用从威斯康辛大学麦迪逊分校医院获得的数据集来训练我们的神经网络,并在许多其他具有不同网络架构的数据集上进行测试。最后对该方法在数据过滤器中的应用进行了介绍。我们的网络架构显示,训练混淆矩阵的恶性诊断率为96%,良性诊断率为99.45%;交叉验证矩阵的恶性诊断率为100%,良性诊断率为97%。我们根据训练和交叉验证均方误差给出了详细的实验,并证明了即使是微小的曲线波动也能得到结果。
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引用次数: 0
Protection Optimization for MPLS Networks MPLS网络保护优化
Pub Date : 2010-04-23 DOI: 10.1109/ICCNT.2010.94
R. Rizk, A. Elmaghraby, Mahmoud Mariee
A crucial aspect in the development of a fault management system is the selection of backup paths. The main issue in this selection is a tradeoff between the resource consumption and the minimization of failure recovery time, link failure, and packet loss. In this paper, a general QoS backup protection optimization policy applicable to a wide range of network situations and traffic types is proposed. A comparison between the proposed policy and the conventional protection backup methods is performed. The numerical results show a significant improvement of the QoS protection over conventional protection backup methods at variable protection parameters, network constraints and traffic types.
在故障管理系统的开发中,备份路径的选择是一个至关重要的方面。这种选择的主要问题是在资源消耗和最小化故障恢复时间、链路故障和数据包丢失之间进行权衡。本文提出了一种适用于多种网络情况和流量类型的通用QoS备份保护优化策略。将提出的策略与传统的保护备份方法进行了比较。数值结果表明,在可变保护参数、网络约束和流量类型下,QoS保护比传统的保护备份方法有显著的改善。
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引用次数: 1
期刊
2010 Second International Conference on Computer and Network Technology
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