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Human Emotion Recognition using Polar-Based Lagged Poincare Plot Indices of Eye-Blinking Data 基于极性滞后庞加莱图指标的眨眼数据情感识别
Pub Date : 2021-11-03 DOI: 10.1142/s1469026821500231
Atefeh Goshvarpour, A. Goshvarpour
Emotion recognition using bio-signals is currently a hot and challenging topic in human–computer interferences, robotics, and affective computing. A broad range of literature has been published by analyzing the internal/external behaviors of the subjects in confronting emotional events/stimuli. Eye movements, as an external behavior, are frequently used in the multi-modal emotion recognition system. On the other hand, classic statistical features of the signal have generally been assessed, and the evaluation of its dynamics has been neglected so far. For the first time, the dynamics of single-modal eye-blinking data are characterized. Novel polar-based indices of the lagged Poincare plots were introduced. The optimum lag was estimated using mutual information. After reconstruction of the plot, the polar measures of all points were characterized using statistical measures. The support vector machine (SVM), decision tree, and Naïve Bayes were implemented to complete the process of classification. The highest accuracy of 100% with an average accuracy of 84.17% was achieved for fear/sad discrimination using SVM. The suggested framework provided outstanding performances in terms of recognition rates, simplicity of the methodology, and less computational cost. Our results also showed that eye-blinking data possesses the potential for emotion recognition, especially in classifying fear emotion.
利用生物信号进行情绪识别是当前人机干扰、机器人技术和情感计算领域的一个热点和具有挑战性的课题。通过分析受试者在面对情绪事件/刺激时的内部/外部行为,已经发表了大量的文献。眼动作为一种外部行为,在多模态情绪识别系统中被频繁使用。另一方面,通常对信号的经典统计特征进行了评估,而对其动力学的评估迄今为止一直被忽视。首次对单模态眨眼数据的动态特性进行了表征。介绍了滞后庞加莱图的新型极性指标。利用互信息估计最优时滞。重建后,用统计方法对各点的极坐标进行表征。采用支持向量机(SVM)、决策树和Naïve贝叶斯算法完成分类过程。支持向量机的恐惧/悲伤识别准确率最高,达到100%,平均准确率为84.17%。所建议的框架在识别率、方法的简单性和较少的计算成本方面具有突出的性能。我们的研究结果还表明,眨眼数据具有情感识别的潜力,特别是在分类恐惧情绪方面。
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引用次数: 0
FUSIONET: A Hybrid Model Towards Image Classification 一种用于图像分类的混合模型
Pub Date : 2021-11-03 DOI: 10.1142/s1469026821500218
Molokwu C. Reginald, Molokwu C. Bonaventure, Molokwu C. Victor, Okeke C. Ogochukwu
Image classification, a topic of pattern recognition in computer vision, is an approach of classification based on contextual information in images. Contextual here means this approach is focusing on the relationship of the nearby pixels also called neighborhood. An open topic of research in computer vision is to devise an effective means of transferring human’s informal knowledge into computers, such that computers can also perceive their environment. However, the occurrence of object with respect to image representation is usually associated with various features of variation causing noise in the image representation. Hence, it tends to be very difficult to actually disentangle these abstract factors of influence from the principal object. In this paper, we have proposed a hybrid model: FUSIONET, which has been modeled for studying and extracting meaning facts from images. Our proposition combines two distinct stack of convolution operation (3 × 3 and 1 × 1, respectively). Successively, these relatively low-feature maps from the above operation are fed as input to a downstream classifier for classification of the image in question.
图像分类是一种基于图像上下文信息的分类方法,是计算机视觉中模式识别的一个研究课题。上下文在这里意味着这种方法关注的是附近像素之间的关系,也称为邻域。计算机视觉研究的一个开放课题是设计一种有效的方法,将人类的非正式知识转移到计算机中,使计算机也能感知他们的环境。然而,物体在图像表示方面的出现通常与图像表示中引起噪声的各种变化特征有关。因此,实际上很难将这些抽象的影响因素与主要对象分开。在本文中,我们提出了一种混合模型:FUSIONET,该模型用于从图像中学习和提取意义事实。我们的命题结合了两个不同的卷积操作堆栈(分别为3 × 3和1 × 1)。随后,这些来自上述操作的相对低特征映射作为输入馈送到下游分类器,用于对所讨论的图像进行分类。
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引用次数: 1
Heuristic-Assisted BERT for Twitter Sentiment Analysis Twitter情感分析的启发式辅助BERT
Pub Date : 2021-09-01 DOI: 10.1142/s1469026821500152
Gokul Yenduri, R. RajakumarBoothalingam, K. Praghash, D. Binu
The identification of opinions and sentiments from tweets is termed as “Twitter Sentiment Analysis (TSA)”. The major process of TSA is to determine the sentiment or polarity of the tweet and then classifying them into a negative or positive tweet. There are several methods introduced for carrying out TSA, however, it remains to be challenging due to slang words, modern accents, grammatical and spelling mistakes, and other issues that could not be solved by existing techniques. This work develops a novel customized BERT-oriented sentiment classification that encompasses two main phases: pre-processing and tokenization, and a “Customized Bidirectional Encoder Representations from Transformers (BERT)”-based classification. At first, the gathered raw tweets are pre-processed under stop-word removal, stemming and blank space removal. After pre-processing, the semantic words are obtained, from which the meaningful words (tokens) are extracted in the tokenization phase. Consequently, these extracted tokens are classified via optimized BERT, where biases and weight are tuned optimally by Particle-Assisted Circle Updating Position (PA-CUP). Moreover, the maximal sequence length of the BERT encoder is updated using standard PA-CUP. Finally, the performance analysis is carried out to substantiate the enhancement of the proposed model.
从推特中识别观点和情绪被称为“推特情绪分析(TSA)”。TSA的主要过程是确定tweet的情绪或极性,然后将其分类为消极或积极的tweet。实施TSA有几种方法,然而,由于俚语,现代口音,语法和拼写错误以及其他现有技术无法解决的问题,它仍然具有挑战性。这项工作开发了一种新的定制的面向BERT的情感分类,它包括两个主要阶段:预处理和标记化,以及基于“自定义的双向编码器表示来自变压器(BERT)”的分类。首先,对收集到的原始推文进行停词去除、词干提取和空格去除等预处理。预处理后获得语义词,在标记化阶段从中提取有意义的词(标记)。因此,这些提取的标记通过优化的BERT进行分类,其中偏差和权重通过粒子辅助圆更新位置(PA-CUP)进行优化调整。此外,使用标准PA-CUP更新BERT编码器的最大序列长度。最后,进行了性能分析,以验证所提出模型的改进。
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引用次数: 8
A Real-Time Approach for Automatic Food Quality Assessment Based on Shape Analysis 一种基于形状分析的食品质量实时自动评估方法
Pub Date : 2021-08-13 DOI: 10.1142/s146902682150019x
Luca Donati, Eleonora Iotti, A. Prati
Products sorting is a task of paramount importance for many countries’ agricultural industry. An accurate quality check assures that good products are not wasted, and rotten, broken and bent food are properly discarded, which is extremely important for food production chains. Such products sorting and quality controls are often performed with consolidated instruments, since simple systems are easier to maintain, validate, and they speed up the processing in terms of production line speed and products per second. Moreover, industries often lack advanced formation, required for more sophisticated solutions. As a result, the sorting task for many food products is mainly done by color information only. Sorting machines typically detect the color response of products to specific LEDs with various light wavelengths. Unfortunately, a color check is often not enough to detect some very common defects. The shape of a product, instead, reveals many important defects and is highly reliable in detecting external objects mixed with food. Also, shape can be used to take detailed measurements of a product, such as its area, length, width, anisotropy, etc. This paper proposes a complete treatment of the problem of sorting food by its shape. It treats real-world problems such as accuracy, execution time, latency and it provides an overview of a full system used on state-of-the-art measurement machines.
对许多国家的农业来说,产品分类是一项至关重要的任务。准确的质量检查确保好产品不被浪费,腐烂、破碎和弯曲的食品被适当丢弃,这对食品生产链至关重要。这种产品分拣和质量控制通常是用综合仪器进行的,因为简单的系统更容易维护和验证,并且它们在生产线速度和每秒产品数量方面加快了处理速度。此外,行业往往缺乏更复杂的解决方案所需的先进信息。因此,许多食品的分类任务主要是通过颜色信息来完成的。分选机通常检测产品对不同波长的特定led的颜色响应。不幸的是,颜色检查通常不足以检测到一些非常常见的缺陷。相反,产品的形状揭示了许多重要的缺陷,在检测食品中混入的外部物体时非常可靠。此外,形状可以用来对产品进行详细测量,如面积、长度、宽度、各向异性等。本文提出了一种完整的方法来处理按形状分类食物的问题。它处理现实世界的问题,如准确性、执行时间、延迟,并提供了在最先进的测量机器上使用的完整系统的概述。
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引用次数: 1
A Method of Environmental Sound Classification Based on Residual Networks and Data Augmentation 基于残差网络和数据增强的环境声分类方法
Pub Date : 2021-08-13 DOI: 10.1142/s1469026821500188
Jinfang Zeng, Y. Li, Yu Zhang, Da Chen
Environmental sound classification (ESC) is a challenging problem due to the complexity of sounds. To date, a variety of signal processing and machine learning techniques have been applied to ESC task, including matrix factorization, dictionary learning, wavelet filterbanks and deep neural networks. It is observed that features extracted from deeper networks tend to achieve higher performance than those extracted from shallow networks. However, in ESC task, only the deep convolutional neural networks (CNNs) which contain several layers are used and the residual networks are ignored, which lead to degradation in the performance. Meanwhile, a possible explanation for the limited exploration of CNNs and the difficulty to improve on simpler models is the relative scarcity of labeled data for ESC. In this paper, a residual network called EnvResNet for the ESC task is proposed. In addition, we propose to use audio data augmentation to overcome the problem of data scarcity. The experiments will be performed on the ESC-50 database. Combined with data augmentation, the proposed model outperforms baseline implementations relying on mel-frequency cepstral coefficients and achieves results comparable to other state-of-the-art approaches in terms of classification accuracy.
由于声音的复杂性,环境声音分类(ESC)是一个具有挑战性的问题。迄今为止,各种信号处理和机器学习技术已经应用于ESC任务,包括矩阵分解、字典学习、小波滤波器组和深度神经网络。观察到,从深层网络中提取的特征往往比从浅层网络中提取的特征获得更高的性能。然而,在ESC任务中,只使用包含多个层的深度卷积神经网络(cnn),忽略了残差网络,导致性能下降。同时,对cnn的有限探索和对简单模型的难以改进的一个可能解释是ESC的标记数据相对稀缺。本文提出了一种用于ESC任务的残余网络EnvResNet。此外,我们建议使用音频数据增强来克服数据稀缺的问题。实验将在ESC-50数据库上进行。结合数据增强,所提出的模型优于依赖mel频率倒谱系数的基线实现,并在分类精度方面达到与其他最先进方法相当的结果。
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引用次数: 0
Discrete Social Spider Algorithm for Solving Traveling Salesman Problem 离散社会蜘蛛算法求解旅行商问题
Pub Date : 2021-08-13 DOI: 10.1142/s1469026821500206
A. Khosravanian, M. Rahmanimanesh, P. Keshavarzi
The Social Spider Algorithm (SSA) was introduced based on the information-sharing foraging strategy of spiders to solve the continuous optimization problems. SSA was shown to have better performance than the other state-of-the-art meta-heuristic algorithms in terms of best-achieved fitness values, scalability, reliability, and convergence speed. By preserving all strengths and outstanding performance of SSA, we propose a novel algorithm named Discrete Social Spider Algorithm (DSSA), for solving discrete optimization problems by making some modifications to the calculation of distance function, construction of follow position, the movement method, and the fitness function of the original SSA. DSSA is employed to solve the symmetric and asymmetric traveling salesman problems. To prove the effectiveness of DSSA, TSPLIB benchmarks are used, and the results have been compared to the results obtained by six different optimization methods: discrete bat algorithm (IBA), genetic algorithm (GA), an island-based distributed genetic algorithm (IDGA), evolutionary simulated annealing (ESA), discrete imperialist competitive algorithm (DICA) and a discrete firefly algorithm (DFA). The simulation results demonstrate that DSSA outperforms the other techniques. The experimental results show that our method is better than other evolutionary algorithms for solving the TSP problems. DSSA can also be used for any other discrete optimization problem, such as routing problems.
基于蜘蛛的信息共享觅食策略,引入社会蜘蛛算法(Social Spider Algorithm, SSA)来解决连续优化问题。结果表明,在最佳适应度值、可扩展性、可靠性和收敛速度方面,SSA比其他最先进的元启发式算法具有更好的性能。在保留离散社会蜘蛛算法的所有优点和突出性能的基础上,本文提出了一种新的离散社会蜘蛛算法(Discrete Social Spider algorithm, DSSA),通过对原SSA的距离函数的计算、跟随位置的构造、运动方法和适应度函数进行一些修改来解决离散优化问题。利用DSSA求解对称和非对称旅行商问题。为了证明DSSA的有效性,使用TSPLIB基准测试,并将结果与离散蝙蝠算法(IBA)、遗传算法(GA)、基于岛屿的分布式遗传算法(IDGA)、进化模拟退火算法(ESA)、离散帝国主义竞争算法(DICA)和离散萤火虫算法(DFA)六种不同优化方法的结果进行了比较。仿真结果表明,DSSA技术优于其他技术。实验结果表明,该方法在求解TSP问题上优于其他进化算法。DSSA也可以用于任何其他离散优化问题,如路由问题。
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引用次数: 1
The Exploitation of Distance Distributions for Clustering 距离分布在聚类中的应用
Pub Date : 2021-08-12 DOI: 10.1142/S1469026821500164
Michael C. Thrun
Although distance measures are used in many machine learning algorithms, the literature on the context-independent selection and evaluation of distance measures is limited in the sense that prior knowledge is used. In cluster analysis, current studies evaluate the choice of distance measure after applying unsupervised methods based on error probabilities, implicitly setting the goal of reproducing predefined partitions in data. Such studies use clusters of data that are often based on the context of the data as well as the custom goal of the specific study. Depending on the data context, different properties for distance distributions are judged to be relevant for appropriate distance selection. However, if cluster analysis is based on the task of finding similar partitions of data, then the intrapartition distances should be smaller than the interpartition distances. By systematically investigating this specification using distribution analysis through the mirrored-density (MD plot), it is shown that multimodal distance distributions are preferable in cluster analysis. As a consequence, it is advantageous to model distance distributions with Gaussian mixtures prior to the evaluation phase of unsupervised methods. Experiments are performed on several artificial datasets and natural datasets for the task of clustering.
虽然距离度量在许多机器学习算法中使用,但在使用先验知识的意义上,关于距离度量的上下文独立选择和评估的文献是有限的。在聚类分析中,目前的研究在应用基于误差概率的无监督方法后评估距离度量的选择,隐式地设置再现数据中预定义分区的目标。此类研究使用的数据簇通常基于数据的上下文以及特定研究的自定义目标。根据数据上下文,距离分布的不同属性被判断为与适当的距离选择相关。然而,如果聚类分析的任务是寻找相似的数据分区,那么分区内的距离应该小于分区间的距离。通过镜像密度(MD图)的分布分析系统地研究了这一规范,表明多模态距离分布在聚类分析中更可取。因此,在无监督方法的评估阶段之前,用高斯混合模型来模拟距离分布是有利的。在几个人工数据集和自然数据集上进行了聚类实验。
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引用次数: 5
Regularized Semi-Supervised Metric Learning with Latent Structure Preserved 保留隐结构的正则化半监督度量学习
Pub Date : 2021-06-09 DOI: 10.1142/S1469026821500139
Qianying Wang, Ming Lu, Meng Li, Fei Guan
Metric learning is a critical problem in classification. Most classifiers are based on a metric, the simplest one is the KNN classifier, whose outcome is directly decided by the given metric. This ...
度量学习是分类中的一个关键问题。大多数分类器都是基于度量的,最简单的分类器是KNN分类器,其结果直接由给定的度量决定。这个…
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引用次数: 1
A Multi-Swarm ABC Algorithm for Parameters Optimization of SOFM Neural Network in Dynamic Environment 动态环境下SOFM神经网络参数优化的多群ABC算法
Pub Date : 2021-06-09 DOI: 10.1142/S1469026821500140
Dongli Jia, Fan Li, Jun Tu
Self-organizing feature map (SOFM) neural network is a kind of competitive unsupervised learning neural network, which has strong self-organizing and self-learning capabilities. It has been widely ...
自组织特征映射(SOFM)神经网络是一种竞争性无监督学习神经网络,具有较强的自组织和自学习能力。它已经被广泛地…
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引用次数: 1
GA2RM: A GA-Based Action Rule Mining Method GA2RM:一种基于ga的动作规则挖掘方法
Pub Date : 2021-06-09 DOI: 10.1142/S1469026821500127
S. Hashemi, P. Shamsinejad
Action Mining is a subfield of Data Mining that tries to extract actions from traditional data sets. Action Rule is a type of rule that suggests some changes in its consequent part. Extracting acti...
动作挖掘是数据挖掘的一个子领域,它试图从传统的数据集中提取动作。动作规则是一种建议在其后续部分进行某些更改的规则。提取活动……
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引用次数: 1
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Int. J. Comput. Intell. Appl.
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