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2016 19th International Conference on Computer and Information Technology (ICCIT)最新文献

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A tale of institutional education in Bangladesh: Students' perspective 孟加拉国机构教育的故事:学生的视角
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860253
Muḥammad Mahdī, Nafisa Anzum, Farzanah Siddique, Md. Rashidujjaman Rifat, Kazi Shahidullah, A. İslam
Education, i.e., the backbone of a nation, encompasses a variety of role players and stakeholders among which students are, perhaps, the most important one. However, analyzing students' feedback on institutional education system from a macro level is yet to be done in the literature. To address this issue, in this paper, we conduct a study on different perspectives of institutional education based on students' feedback. Here, we mostly focus on the institutional education in Bangladesh. Our study is based on the data collected from the students through both on-line and offline surveys. We analyze the collected data to dig out various key aspects such as appropriateness of educational contents, relationship between teachers and students, and extents of malpractice in the institutional education. Additionally, we attempt for identifying different personalities who exhibit significant influence on the students. Our study reveals a number of key findings that may facilitate effective reformation and enhancement of the current educational system under focus.
教育是一个国家的脊梁,它包含了各种各样的角色参与者和利益相关者,而学生可能是其中最重要的一个。然而,文献中还没有从宏观层面分析学生对院校教育系统的反馈。为了解决这一问题,本文以学生的反馈为基础,从不同的角度对大学教育进行了研究。在这里,我们主要关注孟加拉国的机构教育。我们的研究是基于通过在线和离线调查从学生那里收集的数据。我们通过对收集到的数据进行分析,挖掘出教育内容的适宜性、师生关系以及院校教育中的弊端程度等关键方面。此外,我们试图找出对学生有显著影响的不同性格。我们的研究揭示了一些重要的发现,这些发现可能有助于有效地改革和改善当前的教育制度。
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引用次数: 0
A content-aware hybrid architecture for answering questions from open-domain texts 用于回答来自开放领域文本的问题的内容感知混合架构
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860212
Md. Moinul Hoque, P. Quaresma
The current work blends the different paradigms of Question Answering systems and presents a content-aware hybrid architecture for an open-domain factoid questions. It combines a knowledge-based, information extraction-based and a web-based approach in a pipelined architecture to construct an answer to a question keeping the context and discourse of the question in view. The proposed semantic-aware hybrid architecture was compared with other QA systems designed over standard benchmark data. The work has shown enough potential in terms of accuracy and time domain complexity and can be used effectively as a semantic understanding-based QA system.
目前的工作融合了问答系统的不同范式,并提出了一个开放域事实问题的内容感知混合架构。它结合了基于知识、基于信息提取和基于网络的方法,在流水线架构中构建问题的答案,并保持问题的上下文和话语。将所提出的语义感知混合体系结构与基于标准基准数据设计的其他QA系统进行了比较。该方法在精度和时域复杂度方面显示出足够的潜力,可以有效地作为基于语义理解的QA系统。
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引用次数: 4
A novel approach to select most effective attributes for SVM algorithm 一种新的SVM算法中最有效属性选择方法
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860223
Protik Chandra Biswas, Mohiudding Ahmad
Support Vector Machine (SVM) is one of the most popular machine learning algorithms for pattern recognition of a specific dataset. The percentage of accuracy from a defined SVM model greatly depends on the selection of appropriate attributes for SVM model. But the most effective attributes selection for SVM algorithm is one of the most difficult tasks for any kind of data classification. A mathematical model is proposed in this paper through which effectiveness of attributes for SVM model can be calculated. The validity of this SVM model is justified by comparing the effectiveness of a SVM model with the rate of pattern recognition for corresponding SVM model. Linear, Radial Basis Function (RBF), Polynomial Kernel SVM algorithms are used for pattern recognition. The percentage of accuracy of pattern recognition increases with the effectiveness of SVM model. The range of value of effectiveness of SVM model is 0 to
支持向量机(SVM)是用于特定数据集模式识别的最流行的机器学习算法之一。所定义的SVM模型的准确率很大程度上取决于选择合适的SVM模型属性。但SVM算法中最有效的属性选择是任何类型数据分类中最困难的任务之一。本文提出了一个数学模型,通过该模型可以计算支持向量机模型属性的有效性。通过将SVM模型的有效性与相应SVM模型的模式识别率进行比较,验证了SVM模型的有效性。线性,径向基函数(RBF),多项式核支持向量机算法用于模式识别。随着支持向量机模型的有效性提高,模式识别的正确率也随之提高。SVM模型的有效性取值范围为0 ~
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引用次数: 0
Modeling of solar photovoltaic system using MATLAB/Simulink 利用MATLAB/Simulink对太阳能光伏系统进行建模
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860182
Md. Shohag Hossain, N. K. Roy, Md. Osman Ali
This work presents a Simulink-based model of a photovoltaic (PV) system using a single-diode and two-diode model of solar cell. A comparison between the two-diode and single-diode model of PV cell has been illustrated. In addition, the output of series-parallel connection of PV cells has been examined. In the model, series and shunt resistances are calculated by an efficient iteration method based on open-circuit voltage, short-circuit current and irradiance values. The PV module implemented in Simulink/MATLAB considers five parameters. The parameters are series and shunt resistance, reverse saturation current, photocurrent and ideality factor. Approximate parameters are obtained from the manufacturers datasheets. The model includes light intensity and ambient temperature as input. Power, cell temperature and voltage as well as any measurements of interests are the outputs. For the grid connection of solar cell, inverter, filter and a step-up transformer is utilized. The performance of the model is found satisfactory.
这项工作提出了一个基于simulink的光伏(PV)系统模型,使用单二极管和双二极管模型的太阳能电池。对双二极管和单二极管光伏电池模型进行了比较。此外,还研究了光伏电池串并联时的输出。该模型采用基于开路电压、短路电流和辐照度值的高效迭代方法计算串联电阻和并联电阻。在Simulink/MATLAB中实现的PV模块考虑了五个参数。参数包括串联和并联电阻、反向饱和电流、光电流和理想因数。近似参数从制造商的数据表中获得。该模型包括光强和环境温度作为输入。输出功率、电池温度和电压以及任何感兴趣的测量值。太阳能电池并网采用逆变器、滤波器和升压变压器。该模型的性能令人满意。
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引用次数: 17
Combining a rule-based classifier with ensemble of feature sets and machine learning techniques for sentiment analysis on microblog 将基于规则的分类器与特征集集成和机器学习技术相结合用于微博情感分析
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860214
Umme Aymun Siddiqua, Tanveer Ahsan, Abu Nowshed Chy
Microblog, especially Twitter, have become an integral part of our daily life, where millions of users sharing their thoughts daily because of its short length characteristics and simple manner of expression. Monitoring and analyzing sentiments from such massive Twitter posts provide enormous opportunities for companies and other organizations to estimate the user acceptance of their products and services. But the ever-growing unstructured and informal user-generated posts in Twitter demands sentiment analysis tools that can automatically infer sentiments from Twitter posts. In this paper, we propose an approach for sentiment analysis on Twitter, where we combine a rule-based classifier with a majority voting based ensemble of supervised classifiers. We introduce a set of rules for the rule-based classifier based on the occurrences of emoticons and sentiment-bearing words. To train the supervised classifiers, we extract a set of features grouped into Twitter specific features, textual features, parts-of-speech (POS) features, lexicon based features, and bag-of-words (BoW) feature. A supervised feature selection method based on the chi-square statistics (χ2) and information gain (IG) is applied to select the best feature combination. We conducted our experiments on Stanford sentiment140 dataset. Experimental results demonstrate the effectiveness of our method over the baseline and known related work.
微博,尤其是推特,已经成为我们日常生活中不可或缺的一部分,由于其简短的长度特点和简单的表达方式,数以百万计的用户每天分享他们的想法。监控和分析这些大量Twitter帖子的情绪为公司和其他组织提供了巨大的机会来评估用户对其产品和服务的接受程度。但Twitter上不断增长的非结构化和非正式用户生成的帖子需要情感分析工具,这些工具可以自动从Twitter帖子中推断出情绪。在本文中,我们提出了一种在Twitter上进行情感分析的方法,其中我们将基于规则的分类器与基于多数投票的监督分类器组合在一起。我们根据表情符号和带有情感的词的出现情况,为基于规则的分类器引入了一套规则。为了训练监督分类器,我们提取了一组特征,这些特征分为Twitter特定特征、文本特征、词性特征、基于词典的特征和词袋特征。采用基于χ2统计量和信息增益(IG)的监督特征选择方法来选择最佳特征组合。我们在斯坦福大学的sentiment140数据集上进行了实验。实验结果证明了我们的方法在基线和已知相关工作上的有效性。
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引用次数: 24
Mutual information-based selection of audiovisual affective features to predict instantaneous emotional state 基于相互信息的视听情感特征选择预测瞬时情绪状态
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860242
Sudipta Paul, Nurani Saoda, S M Mahbubur Rahman, D. Hatzinakos
Automatic prediction of continuous level emotional state requires selection of suitable affective features to develop a regression system based on supervised machine learning. This paper investigates the performance of low-level dynamic features for predicting two common dimensions of emotional state, namely, valence and arousal instantaneously. Low-complexity features are extracted from audio and visual modalities independently and fused in the feature level. Features with minimum redundancy and maximum relevancy are chosen by using the mutual information-based selection process. The performance of frame-by-frame prediction of emotional state using the moderate length features as proposed in this paper is evaluated on spontaneous and naturalistic human-human conversation of SEMAINE database. Experimental results show that the proposed features selected by mutual information can be used for instantaneous prediction of emotional state with an accuracy higher than traditional audio or visual features that are used for affective computation.
连续水平情绪状态的自动预测需要选择合适的情感特征来开发基于监督式机器学习的回归系统。本文研究了低级动态特征在预测情绪状态的两个常见维度即效价和唤醒方面的表现。从音频和视觉模态中独立提取低复杂度特征,并在特征层进行融合。采用基于互信息的选择过程,选择冗余最小、关联度最大的特征。在SEMAINE数据库的自发、自然的人-人对话中,对本文提出的中等长度特征逐帧预测情绪状态的性能进行了评价。实验结果表明,通过互信息选择的特征可以用于情绪状态的即时预测,其准确性高于传统的用于情感计算的音频或视觉特征。
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引用次数: 3
Smartphone based blood flow feature extraction and classification from Doppler spectrum images 基于智能手机的多普勒频谱图像血流特征提取与分类
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860203
Biswabandhu Jana, S. Mitra, K. Oswal, G. Saha, S. Banerjee
Ultrasound (US) Doppler spectrograms have been widely used for diagnosing vascular obstructions. This paper presents an Android smartphone based new approach for detecting the blood flow condition based on the US Doppler spectrogram images. A set of 59 spectrograms acquired from a US Doppler system is processed to extract features, and these non-redundant features are fed into a supervised classifier to determine the normal and abnormal blood flow. The classification is performed using the k-nearest neighbors (k-NN), Support vector machine (SVM), Naive Bayes (NB) and Multilayer perception (MLP) based classifiers. The SVM based classifier has shown superior performance, having an accuracy of 86.4 %, with a sensitivity and specificity of 96.4 % and 77.4 % respectively. The complete technique is implemented as an Android application and the results show the efficacy of the presented approach for the automated diagnosis of arterial diseases.
超声(US)多普勒频谱已广泛用于诊断血管阻塞。本文提出了一种基于安卓智能手机的基于美国多普勒频谱图像的血流状态检测新方法。从美国多普勒系统获得的一组59个频谱图进行处理以提取特征,并将这些非冗余特征输入到监督分类器中以确定正常和异常的血流。分类使用k近邻(k-NN)、支持向量机(SVM)、朴素贝叶斯(NB)和基于多层感知(MLP)的分类器进行。基于支持向量机的分类器表现出优异的性能,准确率为86.4%,灵敏度和特异性分别为96.4%和77.4%。完整的技术作为Android应用程序实现,结果表明该方法对动脉疾病的自动诊断是有效的。
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引用次数: 0
Blind Reader: An intelligent assistant for blind 盲人阅读器:盲人智能助手
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860200
S. Sabab, Md. Hamjajul Ashmafee
In the real world, books and documents are the sources of knowledge. But this knowledge is only bounded to people with clear vision. Our society includes a group of people who does not have a clear vision or people who are blind. For this group, world is like a black illusion. The shape and structure's information of an object is unavailable to them let alone reading a document. For blind acquiring knowledge by reading documents is cumbersome. Braille is one of the methods which is used to read a book or document. In this method, any document has to be converted to braille format to become understandable to a blind. The problem arises due to the fact that, this is an expensive procedure and many times not available. The solution is rather simple, introduce a smart device with a multimodal system that can convert any document to the interpreted form to a blind. A blind can read document only by tapping words which is then audibly presented through text to speech engine. “Blind Reader” — developed for touch devices which is user friendly and effective interactive system for visionless or low vision people.
在现实世界中,书籍和文献是知识的来源。但这种知识只局限于有清晰视野的人。我们的社会包括一群没有清晰视野的人或盲人。对于这群人来说,世界就像一个黑色的幻觉。他们无法获得对象的形状和结构信息,更不用说读取文档了。对于盲目地通过阅读文献来获取知识是很麻烦的。盲文是用于阅读书籍或文件的方法之一。在这种方法中,任何文档都必须转换为盲文格式,以便盲人可以理解。问题的出现是由于这是一个昂贵的过程,而且很多时候是不可用的。解决方案非常简单,引入一个带有多模式系统的智能设备,该系统可以将任何文档转换为盲的解释形式。盲人只能通过点击文字来阅读文件,然后通过文本向语音引擎发出声音。“盲人阅读器”-为无视力或低视力人士开发的触摸设备,这是一个用户友好和有效的互动系统。
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引用次数: 18
Towards optimal convolutional neural network parameters for bengali handwritten numerals recognition 孟加拉手写体数字识别的卷积神经网络参数优化研究
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860237
A. Chowdhury, M. S. Rahman
This work attempts to find the most optimal setting for a convolutional neural network (CNN) for Bengali digit dataset classification. Recognition of handwritten Bengali numerals has recently gained much interest among researchers due to the significant performance gain found in the recognition of English numerals using neural network based architecture. In this work, a new dataset of 70,000 samples were created first by taking handwriting of 1750 persons where 982 persons were male and the rests were female. These individual image samples are then converted to grayscale, normalized, inverted and pickled to complete the data preprocessing step. Later this dataset was recognized using several convolutional neural network settings where the most optimal setting being found to be two convolution layer with Tanh activation, one hidden layer with Tanh activation and one output layer with softmax activation. The proposed optimal number of feature maps is (35, 45). The minimum validation error has been found to be 1.22% which is the current best result compared to all other methods in the literature.
这项工作试图为卷积神经网络(CNN)找到孟加拉数字数据集分类的最佳设置。手写体孟加拉数字的识别最近引起了研究人员的极大兴趣,因为使用基于神经网络的体系结构在识别英文数字方面发现了显著的性能提升。在这项工作中,首先收集了1750人的笔迹,其中982人是男性,其余的是女性,并创建了7万个样本的新数据集。然后将这些单独的图像样本转换为灰度、归一化、倒置和泡渍,完成数据预处理步骤。后来,使用几个卷积神经网络设置来识别该数据集,其中发现最优设置是两个具有Tanh激活的卷积层,一个具有Tanh激活的隐藏层和一个具有softmax激活的输出层。提出的最优特征映射数为(35,45)。最小验证误差为1.22%,与文献中所有其他方法相比,这是目前最好的结果。
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引用次数: 10
Emotion recognition using the shapes of the wrinkles 利用皱纹的形状进行情感识别
Pub Date : 2016-12-01 DOI: 10.1109/ICCITECHN.2016.7860193
Rim Afdhal, R. Ejbali, M. Zaied
The emotion recognition has become a hot research topic in different domains: Human-Machine-Interaction, Natural Language processing etc. Recent research in the domain of Human Computer Interaction aims at recognizing the user's emotional state to give a smooth interface between humans and computers and to improve their interaction. In this paper we propose an emotion recognition system based on the analysis of the shapes of the wrinkles. The system contains four steps. The first one is detection of face's elements which is realized by the Viola and Jones detector. The second is localization of the wrinkles which is achieved automatically. Then, the information extraction. Finally, the classification using the wavelet network.
情感识别已成为人机交互、自然语言处理等领域的研究热点。人机交互领域的最新研究旨在识别用户的情感状态,为人机交互提供一个流畅的界面,从而改善人机交互。本文提出了一种基于皱纹形状分析的情绪识别系统。该系统包含四个步骤。首先是人脸元素的检测,由Viola and Jones检测器实现。二是自动定位皱纹。然后,进行信息提取。最后,利用小波网络进行分类。
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引用次数: 4
期刊
2016 19th International Conference on Computer and Information Technology (ICCIT)
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