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2012 15th International Conference on Computer and Information Technology (ICCIT)最新文献

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Novel approaches for detecting fabric fault using Artificial Neural Network with K-fold validation 基于K-fold验证的人工神经网络织物故障检测新方法
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509767
A. Andalib, A. Salekin, Mohammad Raihanul Islam, Md. Abdulla-Al-Shami
In this paper we have proposed a novel method to detect the defects in woven fabric based on the abrupt changes in the intensity of fabric image due to the defects and have constructed a classification model to properly identify the defects. We have also improved an existing method based on histogram processing for the classifier. In classification model we have implemented Artificial Neural Network (ANN). Both of our newly proposed method and improved technique have outperformed the existing methods. We have implemented K-validation to estimate the performance of our classification model. Additionally we have analyzed the performance of our classification model for different experimental parameters. Finally we have presented a comparative analysis of these techniques.
本文提出了一种基于疵点引起织物图像强度突变的织物疵点检测方法,并建立了疵点分类模型。我们还改进了现有的基于直方图处理的分类器方法。在分类模型上,我们采用了人工神经网络(ANN)。我们提出的新方法和改进的技术都优于现有的方法。我们已经实现了k验证来估计我们的分类模型的性能。此外,我们还分析了我们的分类模型在不同实验参数下的性能。最后对这些技术进行了比较分析。
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引用次数: 2
Scalability and performance analysis of CRUD matrix based fragmentation technique for distributed database 基于CRUD矩阵的分布式数据库分片技术的可扩展性和性能分析
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509702
S. I. Khan, A. S. M. L. Hoque
Distributed processing is an efficient way to improve performance of a database management system significantly. Distribution of data involves fragmentation, replication and allocation process. Previous research works provided fragmentation solution based on empirical data which are not applicable at the initial stage of a distributed database. In this paper we have presented a fragmentation technique that can be applied at the initial stage when no experimental data are present as well as in later stages of a distributed database system for partitioning the relations. Scalability of our proposed technique also investigated for different situation those may arise in practical cases of a distributed database. Experimental results show that our technique can solve initial fragmentation problem of distributed database system properly also compete with other non initial fragmentation techniques quite good in later stages.
分布式处理是显著提高数据库管理系统性能的有效途径。数据的分布包括碎片化、复制和分配过程。以往的研究工作提供了基于经验数据的碎片化解决方案,这在分布式数据库的初始阶段并不适用。在本文中,我们提出了一种碎片化技术,它可以应用于没有实验数据的初始阶段,也可以应用于分布式数据库系统的后期阶段,用于划分关系。我们所提出的技术的可扩展性还研究了在分布式数据库的实际情况中可能出现的不同情况。实验结果表明,该技术能够较好地解决分布式数据库系统的初始分片问题,并在后期与其他非初始分片技术有较好的竞争。
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引用次数: 11
Modeling business processes for PLM services integration in PLM system 为PLM系统中的PLM服务集成建模业务流程
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509743
S. A. Hossain, S. E. Kadiri, A. Bouras
Business Process modeling plays the central role in the business management through systems engineering from the perspective of enterprise modeling. Every organization prior to adapting an enterprise solution for productivity and efficiency needs to analyze the current processes within the organization and identify the required process efficiency and quality along with the transformation needed. The Object Management Group (OMG) Product Life Cycle Management (PLM) Services 2.0 prescribes specifications based on information and computational model for engineering objects that facilitate life cycle management. Besides, this specification also provides high level scenarios for the independent model rather than specific domain. For an efficient enterprise solution using PLM system, through PLM services, there is an emergent need for business process modelling since PLM system does not cover all the business processes and which converge towards the OMG PLM Services 2.0 specification with the required business change managements. This paper highlights key modeling issues for the business processes from the perspective of OMG PLM Services 2.0 using a case study in industrial context, and proposes a methodology for the transformation of BPM towards PLM Services. The proposed methodology satisfies the business process constraints for the PLM services.
从企业建模的角度看,业务流程建模在系统工程的业务管理中起着核心作用。每个组织在调整企业解决方案以提高生产力和效率之前,都需要分析组织内的当前流程,并确定所需的流程效率和质量以及所需的转换。OMG (Object Management Group) PLM (Product Life Cycle Management) Services 2.0为工程对象制定了基于信息和计算模型的规范,便于生命周期管理。此外,该规范还为独立模型而不是特定领域提供了高级场景。对于使用PLM系统、通过PLM服务实现高效的企业解决方案,由于PLM系统不能覆盖所有的业务流程,并且与所需的业务变更管理向OMG PLM服务2.0规范融合,因此迫切需要对业务流程建模。本文通过对工业环境中的一个案例研究,从OMG PLM Services 2.0的角度强调了业务流程的关键建模问题,并提出了一种将BPM转换为PLM Services的方法。所提出的方法满足PLM服务的业务流程约束。
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引用次数: 1
Pattern classification of deep brain local field potentials for brain computer interfaces 脑机接口深部脑局部场电位模式分类
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509740
K. Mamun, M. N. Huda, M. Mace, M. Lutman, J. Stein, X. Liu, T. Aziz, R. Vaidyanathan, S. Wang
The trend of current brain computer interfaces (BCI) seek to establish bi-directional communication with the brain, for instance, recovering motor functions by externally controlling devices and directly stimulating the brain. This will greatly assist paralyzed individuals through bypassing the damaged brain region. The key process of this communication interface is to decode movements from neural signals and encode information into neural activity. The majority of decoding or pattern classification studies have focused on cortical areas for BCIs, but deep brain structures have also been involved in motor control. The subthalamic nucleus (STN) in the basal ganglia is involved in the preparation, execution and imagining of movements, and may be an alternative source for driving BCIs. This study therefore aimed to classify patterns of deep brain local field potentials (LFPs) related to execution of visually cued movements. LFPs were recorded bilaterally from the STN through deep brain stimulation electrodes implanted in patients with Parkinson's disease. The frequency dependent components of the LFPs were extracted using the wavelet packet transform. In each frequency component, signal features were extracted using an alternative approach called neural synchronization by analyzing Granger causality between the STN. Based on these extracted features, a new feature selection strategy, namely weighted sequential feature selection (WSFS) was developed to efficiently select the optimal feature subset. A support vector machine (SVM) classifier was implemented alongside this novel feature extraction and selection strategy, and evaluated using a cross-validation procedure. Using this optimised feature subset, average correct pattern classification accuracy of movement (left or right) reached 76.0±3.1%. The results obtained in this study are encouraging and suggest that the neural activity in the deep neural circuit (basal ganglia) can be used for controlling BCIs.
当前脑机接口(BCI)的趋势是寻求与大脑建立双向通信,例如通过外部控制设备和直接刺激大脑来恢复运动功能。这将极大地帮助瘫痪的人绕过受损的大脑区域。该通信接口的关键过程是对神经信号的运动进行解码,并将信息编码为神经活动。大多数解码或模式分类研究都集中在脑机接口的皮质区域,但大脑深部结构也参与了运动控制。基底神经节中的丘脑下核(STN)参与运动的准备、执行和想象,可能是驱动脑机接口的另一个来源。因此,本研究旨在对与视觉提示运动执行相关的深部脑局部场电位(LFPs)模式进行分类。通过植入帕金森病患者的深部脑刺激电极,从STN记录双侧lfp。利用小波包变换提取lfp的频率相关分量。在每个频率分量中,通过分析STN之间的格兰杰因果关系,使用一种称为神经同步的替代方法提取信号特征。在此基础上,提出了一种新的特征选择策略,即加权序列特征选择(WSFS),以有效地选择最优特征子集。支持向量机(SVM)分类器与这种新的特征提取和选择策略一起实现,并使用交叉验证过程进行评估。使用该优化的特征子集,运动(左或右)的平均正确模式分类准确率达到76.0±3.1%。本研究结果令人鼓舞,提示深部神经回路(基底神经节)的神经活动可用于脑机接口的控制。
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引用次数: 2
Multiband low profile Modified Inverted-FL strip antenna for 5.2/5.8 GHz WLAN and 5.5 GHz WiMAX applications in laptop computer 适用于笔记本电脑5.2/5.8 GHz无线局域网和5.5 GHz WiMAX应用的多频段低轮廓改进倒fl带天线
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509729
Farzana Khanam, S. Mitra, Md. Selim Hossain, D. Karmokar
This paper contains a multiband low profile Modified Inverted-FL (IFL) strip antenna for 5.2/5.8 GHz WLAN and 5.5 GHz WiMAX operations in a laptop computer. The simulation results are analyzed by means of Numerical Electromagnetic Code-2 (4NEC2) software. This antenna covers −10 dB return loss bandwidth of 900 MHz (5150 MHz ∼6050 MHz). The antenna provides very high peak gains with lower gain variation in its operating bands. The antenna has suitable omnidirectional radiation characteristics. The dimension of the antenna is 16×18.5 mm2, which is very compact in size. So, this low profile antenna is promising to be embedded within the different portable devices employing WiMAX and WLAN applications.
本文设计了一种适用于笔记本电脑5.2/5.8 GHz WLAN和5.5 GHz WiMAX的多频段低轮廓改进反转fl (IFL)条形天线。利用数值电磁码-2 (4NEC2)软件对仿真结果进行了分析。该天线覆盖900 MHz (5150 MHz ~ 6050 MHz)的−10 dB回波损耗带宽。该天线提供非常高的峰值增益,在其工作频带中增益变化较小。该天线具有合适的全向辐射特性。天线的尺寸为16×18.5 mm2,尺寸非常紧凑。因此,这种低调的天线有望嵌入到采用WiMAX和WLAN应用的不同便携式设备中。
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引用次数: 6
Design and optimization of a low cost multi band microstrip patch antenna for K-band, Ku-band and X-band applications 低成本多波段微带贴片天线的设计与优化,适用于k波段、ku波段和x波段
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509750
M. A. Motin, Md. Imran Hasan, Md. Asaduz-Zaman
The main motto of this paper is to design the effective shape of a microstrip patch antenna which can provide lower return losses, better gain and performance for K-band (18 GHz to 26 GHz), Ku-band (12 GHz to 18 GHz) and X-band (2 GHz to 12 GHz) applications. Attempts have been made to optimize the antenna performance by using a single slot in different position in patch, by increasing the number of slots in vertical and horizontal direction and by using array technique. The simulation is performed by using GEMS simulator which is commercially available antenna simulator. The antenna is designed by using Taconic TLY-5 dielectric substrate with permittivity □r =2.2 and height, h=1.588 mm. Without using array technique we have got the return losses in the range of −20 db to −25 db at the frequencies around 19.5 GHz. The series feed array offers −13db return loss around 21GHz, −17.5 db return loss around 16 GHz and −7.25 db return loss around 11.5 GHz. Therefore, this antenna is suitable for K-band, Ku-band and X-band applications.
本文的主要宗旨是设计一种有效的微带贴片天线形状,为k频段(18 GHz至26 GHz)、ku频段(12 GHz至18 GHz)和x频段(2 GHz至12 GHz)的应用提供更低的回波损耗、更好的增益和性能。通过在贴片的不同位置使用单个插槽、增加垂直方向和水平方向的插槽数量以及采用阵列技术来优化天线性能。利用市售的天线模拟器GEMS模拟器进行仿真。天线采用介电常数□r =2.2,高度h=1.588 mm的Taconic TLY-5介电基片设计。在不使用阵列技术的情况下,我们在19.5 GHz左右的频率下得到了−20 db至−25 db的回波损耗。串联馈电阵列在21GHz时提供- 13db回波损耗,在16ghz时提供- 17.5 db回波损耗,在11.5 GHz时提供- 7.25 db回波损耗。因此,该天线适用于k波段、ku波段和x波段应用。
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引用次数: 6
Local Gabor directional pattern for facial expression recognition 面部表情识别的局部Gabor方向模式
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509762
S. Z. Ishraque, A. BanNa, O. Chae
Humans display emotions through facial expressions. Detecting and recognizing these expressions comes naturally to us. But recognizing expressions is not straight forward for machines. In recent years a lot of literatures surged concerning automatic facial expression recognition. While some of these efforts have generated very good results, room for improvement still remains. There are several ways facial expression recognition can be performed. In this work we are proposing an appearance based method for extracting a new type of image descriptor based on Gabor wavelet which can be used for creating a feature vector of an image. To achieve this goal we applied Gabor filter over the image and recorded the edge response at each pixel. For each pixel we take several responses on several orientations. Finally we encode the responses and create a feature vector from the generated codes. We also showed experimental results on standard database for facial expression recognition using our proposed method.
人类通过面部表情来表达情感。探测和识别这些表情对我们来说是很自然的。但是对于机器来说,识别表情并不是直截了当的。近年来,有关面部表情自动识别的文献大量涌现。虽然其中一些努力产生了很好的结果,但仍有改进的余地。有几种方法可以进行面部表情识别。在这项工作中,我们提出了一种基于外观的方法来提取一种基于Gabor小波的新型图像描述子,该方法可用于创建图像的特征向量。为了实现这一目标,我们在图像上应用Gabor滤波器并记录每个像素的边缘响应。对于每个像素,我们在几个方向上取几个响应。最后,我们对响应进行编码,并从生成的代码中创建特征向量。并在标准数据库上给出了人脸表情识别的实验结果。
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引用次数: 12
Stock market prediction model using TPWS and association rules mining 基于TPWS和关联规则挖掘的股票市场预测模型
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509756
Sheikh S. Abdullah, M. Rahaman
The objective of this research is to classify or forecast the stock market from the general investor's point of view. There are three parts in this research. In the first part we performed a survey on most of the well known data mining indicators, implemented the algorithms and calculated the accuracy by applying them on historical data. Then we presented an indicator algorithm which has higher accuracy compare to existing algorithms and it also provides a decision point that helps the investor to understand the significance of the result of the indicator. Finally we applied association rules mining to group the selected (based on precision) indicator algorithms to come up with a model to increase the overall accuracy. However motivating fact is we achieved far better results from our suggested model than other comparable indicator algorithms or strategy. For our research we used the data of Dhaka Stock Exchange (DSE), capital market of Bangladesh.
本研究的目的是从一般投资者的角度对股票市场进行分类或预测。本研究分为三个部分。在第一部分中,我们对大多数已知的数据挖掘指标进行了调查,实现了算法并通过将其应用于历史数据来计算精度。在此基础上,提出了一种比现有算法具有更高准确率的指标算法,并提供了一个决策点,帮助投资者理解指标结果的重要性。最后,我们应用关联规则挖掘对所选择的(基于精度的)指标算法进行分组,得出一个模型,以提高整体精度。然而,令人鼓舞的事实是,我们从我们建议的模型中获得了比其他可比指标算法或策略更好的结果。在我们的研究中,我们使用了达卡证券交易所(DSE)的数据,孟加拉国的资本市场。
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引用次数: 8
Reconfigurable encryption system: Encrypt digital data 可重构加密系统:加密数字数据
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509805
M. J. Hossain, Md. Billal Hossain, K. M. Morshed
This paper presents a reconfigurable system that can encrypt digital data. The system provides the option of choosing one of familiar encryption methods DES, 3 DES and AES to the user. All these methods are symmetric type block cipher cryptography. DES takes 64 bit key to encrypt each 64 bits block of the entire message. AES on the contrary takes 128 bit key to encrypt each 128 bits block. Providing reconfigurability, the architecture enables the user to choose one of the existing techniques according to the level of security required. So the designed architecture is both flexible and reliable enough for the user to secure their privacy of conversation or e-commerce transaction. The architecture is designed using Verilog hardware description language, synthesized in Xilinx Synthesis Tool (XST) and Simulated by Verilogger Pro 6.5. It may be implemented in commercially available FPGAs.
本文提出了一种可重构的数字数据加密系统。系统为用户提供了常用加密方式DES、3des和AES三种加密方式中的一种选择。这些方法都是对称型分组密码。DES使用64位密钥对整个消息的每个64位块进行加密。相反,AES采用128位密钥对每个128位块进行加密。该体系结构提供了可重构性,使用户能够根据所需的安全级别选择一种现有技术。因此,所设计的体系结构具有足够的灵活性和可靠性,可以保护用户的会话隐私或电子商务交易隐私。该体系结构采用Verilog硬件描述语言进行设计,在Xilinx Synthesis Tool (XST)中进行合成,并用Verilogger Pro 6.5进行仿真。它可以在商用fpga中实现。
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引用次数: 4
Implementation of an efficient bangla soft keyboard with text-to-image replacement support 实现了一个高效的孟加拉软键盘,支持文本到图像的替换
Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509781
Sk. Imran Hossain, Md. Fahim Chowdhury, Md. Amer Muntaq Ganim, M. S. Sadi
In present world, Bangla is one of the most spoken languages. But, in the arena of electronic devices, tools for Bangla writing are inadequate. Also, there are limitations for typing Bangla faster in an efficient way because of the lack of proper layout. After forty-one years of the liberation war, an optimal and widely accepted Bangla keyboard layout has not yet been obtained. And in present days, smart-phones and tabs are being used profoundly where soft keyboard is the most essential input method. In Bangla soft keyboard, the arrangement of letters should be in such a way that paves the way towards an easy and efficient text input method. Our primary evaluation shows a significant improvement in typing speed, ease of learning and reduction in error rates. Hence we propose an efficient Fixed Bangla Keyboard Layout where Bangla alphabets are mapped phonetically on the standard QWERTY keyboard and a Bangla text-to-image replacement technique for non-Bangla supported smartphones. In this paper we present a soft keyboard implemented on Android platform using this layout with text-to-image conversion support.
在当今世界,孟加拉语是使用人数最多的语言之一。但是,在电子设备的舞台上,孟加拉语写作的工具是不够的。此外,由于缺乏适当的布局,以有效的方式更快地键入孟加拉语也存在限制。经过四十一年的解放战争,至今还没有一个最优的、被广泛接受的孟加拉语键盘布局。如今,智能手机和标签被广泛使用,软键盘是最基本的输入法。在孟加拉软键盘中,字母的排列应该是这样一种方式,为简单有效的文本输入法铺平道路。我们的初步评估显示,它在打字速度、易学性和错误率方面有了显著提高。因此,我们提出了一种有效的固定孟加拉语键盘布局,其中孟加拉语字母按语音映射到标准QWERTY键盘上,并为不支持孟加拉语的智能手机提供孟加拉语文本到图像的替换技术。在本文中,我们提出了一个在Android平台上实现的软键盘,使用这种布局支持文本到图像的转换。
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引用次数: 1
期刊
2012 15th International Conference on Computer and Information Technology (ICCIT)
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