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2017 Third International Conference on Research in Computational Intelligence and Communication Networks (ICRCICN)最新文献

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Monitoring negative opinion about vaccines from tweets analysis 从推文分析中监测对疫苗的负面意见
Eleonora D'Andrea, P. Ducange, F. Marcelloni
In this paper, we present an approach to monitor the Italian public opinion from tweets analysis, with reference to the vaccination topic. This topic has recently become controversial, due to the disinformation about the alleged connection between autism and vaccines. Further, the Italian Ministry of Health has noticed a drop in vaccination rates, enhancing the risk of reemergence of eradicated diseases. Thus, a system to monitor the negative public opinion about vaccines could become very important for decision making. The proposed approach i) fetches vaccine-related tweets, ii) applies a text elaboration on the tweets, and iii) performs a binary classification aimed at discriminating negative opinions tweets (i.e., not in favor of vaccination) from the rest of tweets. By employing the Simple Logistic classifier, we achieved a 75.5% average accuracy. Finally, we monitor the trend over time of public opinion about vaccination decision making in a free, real-time and quick fashion.
在本文中,我们提出了一种方法来监测意大利公众舆论从推特分析,参考疫苗接种的话题。由于有关自闭症和疫苗之间所谓联系的虚假信息,这个话题最近变得有争议。此外,意大利卫生部注意到疫苗接种率有所下降,这增加了已根除疾病重新出现的风险。因此,监测公众对疫苗的负面意见的系统可能对决策非常重要。所提出的方法i)获取与疫苗相关的推文,ii)对推文进行文本细化,以及iii)执行二元分类,旨在区分负面意见推文(即不赞成接种疫苗)与其他推文。通过使用简单逻辑分类器,我们达到了75.5%的平均准确率。最后,我们以免费、实时、快速的方式监测疫苗接种决策的公众舆论趋势。
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引用次数: 4
Security risk assessment in online social networking: A detailed survey 在线社交网络的安全风险评估:一项详细调查
Piyali De, Sandip Dey
Millions of users harvest their personal information (photo, video, status) on different online social networks (OSNs). Hence, these rich repositories of sensitive information attract the eyes of adversary to launch variety of cyber attacks on OSN. Here we have identified all crucial threats on social network that may lead to severe risks. In this paper, we have formalized possible social network risks into two types depending upon the origin of risk. Risks are presented here along with impact factor and control measures to mitigate the outcome of the security threats. The relationship between risks and basic security properties has been presented in tabular format. Finally we provide three case studies on identity theft.
数以百万计的用户在不同的在线社交网络(osn)上收集他们的个人信息(照片、视频、状态)。因此,这些丰富的敏感信息库吸引了对手的目光,对OSN发动各种网络攻击。在这里,我们已经确定了社交网络上可能导致严重风险的所有关键威胁。在本文中,我们根据风险的来源将可能的社会网络风险形式化为两种类型。这里介绍了风险以及影响因素和控制措施,以减轻安全威胁的后果。风险与基本安全属性之间的关系以表格形式表示。最后,我们提供了三个关于身份盗窃的案例研究。
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引用次数: 1
An efficient method for improving classification accuracy of handwritten Bangla compound characters using DCNN with dropout and ELU 基于dropout和ELU的手写体孟加拉复合字DCNN分类方法
Akm Ashiquzzaman, A. Tushar, S. Dutta, Farzana Mohsin
Handwritten character recognition is an essential part of optical character recognition domain. Bangla handwritten compound character recognition is a complex task that is challenging due to extensive size of and sheer diversity within the alphabet. The current work proposes a novel method of recognition of compound characters in Bangla language using deep convolutional neural networks (DCNN) and efficient greedy layer-wise training approach. Introduction of dropout technology mitigates data overfitting and Exponential Linear Unit (ELU) is introduced to tackle the vanishing gradient problem during training. ELU is a special rectified linear unit which provides sustainability against the vanishing as well as exploding gradients. Furthermore, dropout influences network elements to learn diverse representation of data, which contributes to generalization of model. The model is tested on CMATERdb 3.1.3.3 data set of compound characters, and the performance is found to outperform existing state-of-the-art methods of Bangla handwritten complex character recognition.
手写体字符识别是光学字符识别领域的重要组成部分。孟加拉语手写复合字识别是一项复杂的任务,由于其庞大的规模和绝对的多样性,具有挑战性。本文提出了一种基于深度卷积神经网络(DCNN)和高效贪婪分层训练方法的孟加拉语复合字识别新方法。引入dropout技术减轻了数据的过拟合,并引入指数线性单元(Exponential Linear Unit, ELU)来解决训练过程中梯度消失的问题。ELU是一种特殊的整流线性单元,它提供了对消失和爆炸梯度的可持续性。此外,辍学影响网络元素学习数据的多样化表示,有助于模型的泛化。在CMATERdb 3.1.3.3复合字数据集上对该模型进行了测试,结果表明该模型的性能优于现有的孟加拉文手写复合字识别方法。
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引用次数: 21
Relation recognition among named entities from a crime corpus using a web-based semantic similarity measurement 使用基于web的语义相似度度量来识别犯罪语料库中命名实体之间的关系
Priyanka Das, A. Das
The present work proposes an unsupervised approach for recognising relations between named entities from a large corpora based on crime in Indian states and union territories. Initially, named entities have been identified from the extracted crime corpus and certain pair of entities have been chosen that facilitates the crime analysis. Then the entity pairs with their intermediate context words have been represented as a shallow parse tree for relation instance. From the parse trees, only the head words (in each entity pair) reflecting the main meaning of the phrases has been considered for measuring a semantic similarity using a web search engine that retrieves the page count of those particular words and their conjunctives. The derived page count is used for measuring the Simpson Coefficient between the pairs and based on this similarity score, an agglomerative hierarchical clustering technique has been applied that makes several clusters of entity pairs of same relationship. The resultant clusters also have been characterised with the most frequent head word present in the group. This proposed method shows a simple similarity measure technique for relation extraction from crime data providing better accuracy than other existing methods.
目前的工作提出了一种无监督的方法,用于识别基于印度各州和联邦领土犯罪的大型语料库中指定实体之间的关系。首先,从提取的犯罪语料库中识别出命名实体,并选择特定的实体对以方便犯罪分析。然后将实体对及其中间上下文词表示为关系实例的浅解析树。从解析树中,只考虑反映短语主要含义的头词(在每个实体对中),以便使用检索这些特定词及其连词的页面计数的web搜索引擎测量语义相似性。导出的页面计数用于测量对之间的辛普森系数,并基于此相似性得分,应用了一种凝聚分层聚类技术,使具有相同关系的实体对组成多个聚类。由此产生的集群也具有在组中出现的最频繁的头部词的特征。该方法提供了一种简单的相似性度量技术,可用于犯罪数据的关联提取,比现有方法具有更高的准确性。
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引用次数: 1
Face recognition using ensemble support vector machine 基于集成支持向量机的人脸识别
A. Dey, S. Chowdhury, Manas Ghosh
In Face recognition, a combination of neural network (NN), known as an ensemble of neural network, often outperforms individual ones. This paper is aiming to present a support vector machines (SVM)-ensemble-based efficient face recognition system. The training samples are randomly chosen by means of bootstrap technique to train the different SVM independently. These SVM's are combined together to generate the ensemble SVM. The proposed method then makes a collective decision by aggregating them. It may be noted that, the performance of the practical SVM is far from the theoretical SVM as the implementations are based on approximated algorithms. The performance of the real SVM can be uplifted by using the proposed ensemble SVM with bagging (bootstrap aggregating). Finally, the proposed method takes the collective decision by aggregating the training samples. The proposed method is validated on AT&T, FERET face databases to show its supremacy over the single SVM-based methods.
在人脸识别中,神经网络(NN)的组合,即神经网络的集合,通常优于单个神经网络。本文旨在提出一种基于支持向量机集成的高效人脸识别系统。采用自举法随机选取训练样本,对不同的支持向量机进行独立训练。将这些支持向量机组合在一起生成集成支持向量机。然后,所提出的方法通过聚合它们来做出集体决策。值得注意的是,实际支持向量机的性能与理论支持向量机相差甚远,因为实现是基于近似算法的。采用带bagging (bootstrap aggregating)的集成支持向量机可以提高实际支持向量机的性能。最后,对训练样本进行集合决策。在AT&T, FERET人脸数据库上进行了验证,证明了该方法优于基于支持向量机的单一方法。
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引用次数: 3
Self-organized criticality, causality and correlation of probability of recurrence between daily mean temperature and dew point across India 印度各地日平均温度和露点之间的自组织临界性、因果关系和复发概率的相关性
Rajdeep Ray, Payel Majumder, M. H. Khondekar, K. Ghosh, A. Bhattacharjee
The temperature and dew point records of seven weather stations, located in India have been scrutinized under the self-organized criticality regime. The data models an almost ideal scaling behaviour as of the type of t/fα noise; with α≈1. This scaling behaviour strongly suggests the presence of self-organized criticality (SOC) behind both the signals. To draw more insight into the detailed dynamics and to strengthen the explanation of such behaviour, causal relationship exploiting singularity spectrum analysis (SSA), multivariate singularity spectrum analysis (MSSA) and Correlation of Probability of Recurrence (CPR) based on recurrence plot have been studied in between the two signals for all the stations. The results reveal sufficient causal relationship and high correlation of probability of recurrence for strong support behind such critical dynamical systems.
在自组织临界状态下,对位于印度的7个气象站的温度和露点记录进行了审查。数据模型在t/fα噪声类型下具有几乎理想的标度行为;与α≈1。这种缩放行为强烈表明,这两个信号背后都存在自组织临界性(SOC)。为了进一步深入了解这一现象的具体动态并加强对这一现象的解释,本文利用奇异谱分析(SSA)、多元奇异谱分析(MSSA)和基于递归图的复现概率相关(CPR)对所有台站两个信号之间的因果关系进行了研究。结果表明,这些临界动力系统具有充分的因果关系和高度的重现概率相关性,为其提供了强有力的支持。
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引用次数: 1
Mutual auditing framework for service level security auditing in cloud 云服务级安全审计的相互审计框架
Soumitra Sasmal, Indrajit Pan
Cloud computing technology is gaining rapid growth in popularity. Mostly it is web based service and some private modules are built on intranet or virtual private network. Network security is a major concern for both cloud users and hosts of data centers. In addition to this, clients are also concerned about the infrastructure and service quality offered by cloud service providers. Cloud service providers equally need to monitor clients' activities and applications running in the client terminals. This paper presents a mutual auditing framework in client-server mode. This interactive framework will keep track of different service modules from both end and will establish a mutual agreement of trust. Proposed framework has been tested on CloudSim and Xen hypervisor under different scale, scope and complexity. Experimental results show effectiveness and efficacy of the framework.
云计算技术正在迅速普及。它主要是基于web的服务,一些专用模块建立在内部网或虚拟专用网上。网络安全是云用户和数据中心主机关心的主要问题。除此之外,客户还关注云服务提供商提供的基础设施和服务质量。云服务提供商同样需要监控客户端的活动和运行在客户端终端上的应用程序。本文提出了一个客户端-服务器模式下的相互审计框架。这个交互框架将跟踪来自两端的不同服务模块,并将建立相互信任的协议。本文提出的框架已经在CloudSim和Xen hypervisor上进行了不同规模、范围和复杂度的测试。实验结果表明了该框架的有效性。
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引用次数: 3
Design of hybrid (CSA-CSkA) adder for improvement of propagation delay 改进传输延迟的混合(CSA-CSkA)加法器设计
Sujan Sarkar, Jishan Mehedi
Adders are the main components in digital designs not only in additions but also in filter designing, multiplexing, and division. The circuit performance depends on the design of base adder. The demand of high-performance VLSI (very large scale integration) systems is increasingly rapidly for used in small and portable devices. The speed of operation is depends on the delay of the basic adder and it is a very important parameter for high performance. There are so many research works have been so far done on the adder to reduce the delay of it. This paper have done comparative study of various parallel adders and proposed a hybrid adder circuit to improve the delay. Carry Save Adder (CSA) and Carry Skip Adder (CSkA) have been incorporated to improve propagation delay. The result shows the effectiveness for propagation delay improvement.
加法器是数字设计的主要组成部分,不仅在加法设计中,而且在滤波器设计、多路复用和除法设计中都是如此。电路的性能取决于基极加法器的设计。高性能VLSI(超大规模集成电路)系统在小型和便携式设备中的应用需求日益增长。运算速度取决于基本加法器的延迟,它是实现高性能的一个重要参数。为了减少加法器的延迟,人们做了大量的研究工作。本文对各种并行加法器进行了比较研究,提出了一种混合加法器电路来改善延迟。采用进位保存加法器(CSA)和进位跳加法器(CSkA)来改善传输延迟。结果表明,该方法对改进传输延迟是有效的。
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引用次数: 9
Performance analysis of FIR and IIR filters for ECG signal denoising based on SNR 基于信噪比的心电信号去噪FIR和IIR滤波器的性能分析
Nilotpal Das, M. Chakraborty
Filtering of ECG signal is an essential step in ECG signal processing and analysis. Since ECG is a low amplitude biosignal, it is easily corrupted by external noises, and by the presence of other biosignals. The aim of filtering is to remove unwanted noise while preserving important characteristics of the signal. Various filtering techniques are available thus choosing the right filter for ECG denoising is a problem. This study aims to solve that problem by quantifying and comparing performance of various FIR and IIR filters, based on their SNR values, in both diagnostic and monitoring mode. For this purpose, ECG signals are collected from MIT-BIH Physionet Database. This study identifies the order at which filters perform best, thus order optimization for each filter design has been done. Readers will be able to understand the variation of filter performance with filter order and choose the best filter for ECG signal denoising.
心电信号滤波是心电信号处理和分析的重要环节。由于心电信号是一种低幅度的生物信号,它很容易被外界噪声和其他生物信号的存在所破坏。滤波的目的是去除不需要的噪声,同时保留信号的重要特性。由于滤波技术多种多样,因此选择合适的滤波器进行心电去噪是一个问题。本研究旨在通过量化和比较各种FIR和IIR滤波器在诊断和监测模式下的性能,基于它们的信噪比值来解决这个问题。为此,从MIT-BIH Physionet数据库中收集心电信号。本研究确定了滤波器表现最佳的顺序,从而对每个滤波器设计进行了顺序优化。读者将能够了解滤波器性能随滤波器阶数的变化,从而选择最佳的心电信号去噪滤波器。
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引用次数: 21
Modified minterms genarations algorithm using weighted sum method 改进加权和法最小项生成算法
Jishan Mehedi, Souvik Paul, R. Upadhyay
This paper proposed a Boolean expression simplification method with reduced complexity. To avoid bulky size of the truth table for multiple input combinational circuits, a reduced truth table is proposed here and this methodology is able to reduce its present size. This paper discusses about the generation of minterms from the SOP form of the Boolean expression. Here any input system is described as SOP form and represented by a matrix. This paper shows the effectiveness for reducing the computational complexity for Boolean expression simplification.
本文提出了一种降低复杂度的布尔表达式简化方法。为了避免多输入组合电路的真值表过于庞大,本文提出了一种简化的真值表,该方法能够减小其目前的大小。本文讨论了从布尔表达式的SOP形式生成最小项的问题。这里,任何输入系统都被描述为SOP形式,并用矩阵表示。本文证明了布尔表达式简化降低计算复杂度的有效性。
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引用次数: 1
期刊
2017 Third International Conference on Research in Computational Intelligence and Communication Networks (ICRCICN)
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