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Efficacy Determination of Various Base Networks in Single Shot Detector for Automatic Mask Localisation in a Post COVID Setup 单次射击检测器中不同基础网络在COVID后设置中自动掩码定位的有效性确定
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-10-22 DOI: 10.1080/0952813X.2021.1960638
Gaurav Jee, GM Harshvardhan, Mahendra Kumar Gourisaria, Vijander Singh, S. Rautaray, M. Pandey
ABSTRACT The COVID-19 pandemic is one of the rarest events of global crises where a viral pathogen infiltrates every part of the world, leaving every country face an inevitable threat of having to lock down major cities and economic hubs and put firm restrictions on citizens thus slowing down the economy. The risk of removal of lockdowns is the emergence of new waves of a pandemic causing a surge in new cases. These facts necessitate the containment of the virus when the lockdowns end. Wearing masks in crowded places can help restrict the spread of the virus through minuscule droplets in the air. Through the automatic detection, enumeration, and localisation of masks from closed-circuit television footage, it is possible to keep violations of post-COVID regulations in check. In this paper, we leverage the Single-Shot Detection (SSD) framework through different base convolutional neural networks (CNNs) namely VGG16, VGG19, ResNet50, DenseNet121, MobileNetV2, and Xception to compare performance metrics attained by the different variations of the SSD and determine the efficacies for the best base network model for automatic mask detection in a post COVID world. We find that Xception performs best among all the other models in terms of mean average precision.
COVID-19大流行是全球危机中最罕见的事件之一,病毒病原体渗透到世界的每一个角落,使每个国家都面临着不可避免的威胁,不得不封锁主要城市和经济中心,并对公民实施严格限制,从而减缓经济。解除封锁的风险是出现新的大流行浪潮,导致新病例激增。这些事实要求在封锁结束后遏制病毒。在拥挤的地方戴口罩可以帮助限制病毒通过空气中的微小飞沫传播。通过从闭路电视镜头中自动检测、枚举和定位口罩,可以控制违反新冠疫情后规定的行为。在本文中,我们通过不同的基础卷积神经网络(cnn),即VGG16、VGG19、ResNet50、DenseNet121、MobileNetV2和Xception,利用单次检测(SSD)框架,比较SSD不同变体所获得的性能指标,并确定后COVID世界中用于自动掩码检测的最佳基础网络模型的有效性。我们发现,在所有其他模型中,Xception在平均精度方面表现最好。
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引用次数: 2
Threat detection in Internet of Things using Cuckoo search Chicken Swarm optimisation algorithm 基于布谷鸟搜索鸡群算法的物联网威胁检测
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-09-29 DOI: 10.1080/0952813X.2021.1970824
Sivaram Rajeyyagari
ABSTRACT Smart devices and people existing on the internet are connected to smart objects or things in the Internet of Things (IoT) technology. To protect the user information, it is required to detect malicious actions in the IoT environment. Even though different threat detection methods are introduced in the IoT technology, detecting malicious activity is still a significant challenge in the communication network. Hence, in this research work, an effective Cuckoo Search Chicken Swarm (CSCS) optimisation algorithm is proposed to detect the malicious threat in the network effectively. At first, the user activity information is simulated from the IoT network and stored in the user activity log. The user activity log file is forwarded to the feature extraction module, where the features, like logon, device, file, email, and Hypertext Transfer Protocol (HTTP) are extracted using the window length. For each user, the features are extracted with respect to the time stamp. Then, the dynamic feature index is constructed, and the threat detection is performed using the deep Long Short-Term Memory (LSTM) classifier, which is trained using the proposed CSCS algorithm. The proposed CSCS algorithm is designed by integrating the Cuckoo Search (CS) algorithm and the Chicken Swarm Optimisation (CSO) algorithm. Moreover, the proposed algorithm attained better performance with respect to the metrics, like namely F1-score, precision, and recall as 0.915, 0.975, and 0.884 by varying the k-value and 0.9286, 0.9235, and 0.9337 by varying the training data using window size as 10, respectively.
在物联网(IoT)技术中,存在于互联网上的智能设备和人与智能对象或事物相连。为了保护用户信息,需要检测物联网环境中的恶意行为。尽管在物联网技术中引入了不同的威胁检测方法,但检测恶意活动仍然是通信网络中的一个重大挑战。为此,本研究提出了一种有效的布谷鸟搜索鸡群(CSCS)优化算法来有效检测网络中的恶意威胁。首先,从物联网网络模拟用户活动信息并存储在用户活动日志中。用户活动日志文件被转发到特征提取模块,在该模块中,使用窗口长度提取诸如登录、设备、文件、电子邮件和超文本传输协议(HTTP)等特征。对于每个用户,根据时间戳提取特征。然后,构建动态特征索引,使用深度长短期记忆(LSTM)分类器进行威胁检测,该分类器使用CSCS算法进行训练。该算法将布谷鸟搜索(Cuckoo Search, CS)算法和鸡群优化(Chicken Swarm optimization, CSO)算法相结合。此外,通过改变k值,本文算法在f1得分、精度和召回率指标上取得了更好的性能,分别为0.915、0.975和0.884;通过改变窗口大小为10的训练数据,分别为0.9286、0.9235和0.9337。
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引用次数: 0
Predicting focal point solution in divergent interest tacit coordination games 利益分歧性默契协调博弈焦点解的预测
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-09-05 DOI: 10.1080/0952813X.2021.1974953
Dor Mizrahi, Ilan Laufer, Inon Zuckerman
ABSTRACT In divergent interest tacit coordination games there is a tradeoff between selecting a solution with a high individual payoff and one which is perceptually more salient to both players, i.e., a focal point. To construct a cognitive model of decision making in such games we need to consider both the social value orientation of the players and the game features. Therefore, the goal of this study was to construct a cognitive model for predicting the probability of selecting a focal point solution in these types of games. Using bootstrap aggregated ensemble of decision trees that was trained on the “bargaining table’ game behavioural data were able to predict when players will select a focal point solution. The binary classification achieved an accuracy level of 85%. The main contribution of the current study is the ability to model players behaviour based on the interaction between different SVOs and game features. This interaction enabled us to gain different insights regarding player’s behaviour. For example, a prosocial player often showed a tendency towards focal point solutions even when their personal gains were lower than that of the co-player. Thus, SVO is not a sufficient model for explaining behaviour in different divergent interest scenarios.
在分歧利益隐性协调博弈中,在选择具有高个人收益的解决方案和选择对双方参与者在感知上更显著的解决方案(即焦点)之间存在权衡。为了构建这类游戏中的决策认知模型,我们需要同时考虑玩家的社会价值取向和游戏特征。因此,本研究的目标是构建一个认知模型来预测在这些类型的游戏中选择焦点解决方案的概率。使用基于“议价桌”游戏行为数据训练的决策树集合,我们能够预测玩家何时会选择焦点解决方案。二元分类的准确率达到85%。当前研究的主要贡献在于能够基于不同svo和游戏功能之间的相互作用为玩家行为建模。这种互动使我们能够获得关于玩家行为的不同见解。例如,亲社会玩家往往倾向于焦点解决方案,即使他们的个人收益低于合作玩家。因此,SVO模型并不足以解释不同利益分歧情景下的行为。
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引用次数: 5
The role of an ant colony optimisation algorithm in solving the major issues of the cloud computing 蚁群优化算法在解决云计算主要问题中的作用
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-08-30 DOI: 10.1080/0952813X.2021.1966841
Saied Asghari, N. J. Navimipour
ABSTRACT There are many issues and problems in cloud computing that researchers try to solve by using different techniques. Most of the cloud challenges are NP-hard problems; therefore, many meta-heuristic techniques have been used for solving these challenges. As a famous and powerful meta-heuristic algorithm, the Ant Colony Optimisation (ACO) algorithm has been recently used for solving many challenges in the cloud. However, in spite of the ACO potency for solving optimisation problems, its application in solving cloud issues in the form of a review article has not been studied so far. Therefore, this paper provides a complete and detailed study of the different types of ACO algorithms for solving the important problems and issues in cloud computing. Also, the number of published papers for various publishers and different years is shown. In this paper, available challenges are classified into different groups, including scheduling, resource allocation, load balancing, consolidation, virtual machine placement, service composition, energy consumption, and replication. Then, some of the selected important techniques from each category by applying the selection process are presented. Besides, this study shows the comparison of the reviewed approaches and also it highlights their principal elements. Finally, it highlights the relevant open issues and some clues to explain the difficulties. The results revealed that there are still some challenges in the cloud environments that the ACO is not applied to solve.
云计算中存在许多问题,研究者试图通过使用不同的技术来解决这些问题。大多数云挑战都是np难题;因此,许多元启发式技术被用于解决这些挑战。蚁群优化算法(Ant Colony optimization, ACO)作为一种著名而强大的元启发式算法,近年来被用于解决云计算中的许多挑战。然而,尽管蚁群算法在解决优化问题方面具有潜力,但它在以综述文章的形式解决云问题方面的应用迄今尚未得到研究。因此,本文对不同类型的蚁群算法进行了完整而详细的研究,以解决云计算中的重要问题和问题。此外,还显示了不同出版商和不同年份发表的论文数量。在本文中,可用的挑战被分为不同的组,包括调度、资源分配、负载平衡、整合、虚拟机放置、服务组合、能源消耗和复制。然后,通过应用选择过程,介绍了从每个类别中选择的一些重要技术。此外,本研究还对所研究的方法进行了比较,并突出了它们的主要要素。最后,强调了相关的开放问题和解释困难的一些线索。结果表明,在云环境中仍然存在一些未应用蚁群算法来解决的挑战。
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引用次数: 4
State-of-the-Art in Automated Story Generation Systems Research 最新的自动化故事生成系统研究
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-08-30 DOI: 10.1080/0952813X.2021.1971777
R. A. Ansag, Avelino J. Gonzalez
ABSTRACT This paper presents a review of research works from the last several years in automated story generation systems. These systems are categorised into interactive story generation systems and non-Interactive story generation systems. Interactive systems are those that collaborate with a user/author during the process of creating and/or executing the story. The extent of user interaction varies across systems but remains an integral part of the creation and/or the unfolding of the story. Non-Interactive systems concentrate on complete automation of the creative process involved in narrative generation to create diverse and interesting stories. Interactive story generators specifically designed for video game narratives are reviewed as a separate sub-class of interactive story generation systems. Also reviewed are the methods used for evaluation of story generation systems as a way to explore the possibility of having standard methods of evaluation within the research community. The paper includes a discussion of trends and directions of the research discipline.
本文综述了近年来在自动化故事生成系统方面的研究工作。这些系统分为交互式故事生成系统和非交互式故事生成系统。交互系统是那些在创建和/或执行故事的过程中与用户/作者协作的系统。用户交互的程度因系统而异,但仍然是故事创造和/或展开的组成部分。非互动系统专注于叙事生成过程的完全自动化,以创造多样化和有趣的故事。专门为电子游戏叙事设计的互动故事生成器被视为互动故事生成系统的一个独立子类。本文还回顾了用于评估故事生成系统的方法,以此来探索在研究界采用标准评估方法的可能性。文章还讨论了该学科的发展趋势和方向。
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引用次数: 3
Weighted holoentropy-based features with optimised deep belief network for automatic sentiment analysis: reviewing product tweets 基于加权全熵的特征与优化的深度信念网络用于自动情感分析:审查产品推文
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-08-30 DOI: 10.1080/0952813X.2021.1966839
Hema Krishnan, M. Elayidom, T. Santhanakrishnan
ABSTRACT In this paper, a novel sentiment analysis model is implemented, which consists of six stages: (i) Pre-processing, (ii) Keyword extraction and its sentiment categorisation, (iii) Semantic word extraction, (iv) Semantic similarity checking, (v) Feature extraction, and (vi) Classification. Initially, the Mongodb documented tweets are subjected to pre-processing that includes steps such as stop word removal, stemming, and blank space removal. Accordingly, from the pre-processed tweets, the keywords are extracted. Based on the extracted keywords, the prevailing semantic words are extracted after classifying the sentimental keywords. Further, the evaluation of the semantic similarity score with the keywords takes place. Also, it exploits joint holoentropy and cross holoentropy. Here, the extraction of weighted holoentropy features is the main contribution, where a weight function is multiplied by the holoentropy features. To improve the performance of classification, a constant term is used for calculating weight function. It is tuned or optimised in such a way that the accuracy of the proposed method is better. The optimisation strategy uses the hybrid model that merges Particle Swarm Optimisation (PSO) into Whale Optimisation Algorithm (WOA). Hence, the proposed algorithm is named as Swarm Velocity-based WOA (SV-WOA). Finally, the analysis is done to prove the efficiency of the proposed model.
本文实现了一种新的情感分析模型,该模型包括六个阶段:(i)预处理,(ii)关键字提取及其情感分类,(iii)语义词提取,(iv)语义相似度检查,(v)特征提取和(vi)分类。最初,Mongodb记录的tweet要经过预处理,包括删除停止词、词干提取和删除空白等步骤。相应地,从预处理的tweet中提取关键字。在提取的关键字基础上,对情感关键字进行分类,提取出流行的语义词。进一步,评估与关键词的语义相似度得分。同时利用了联合全熵和交叉全熵。在这里,加权全熵特征的提取是主要贡献,其中权函数乘以全熵特征。为了提高分类的性能,我们使用一个常数项来计算权重函数。它以这样一种方式进行调整或优化,使所提出的方法的准确性更好。该优化策略采用混合模型,将粒子群优化(PSO)算法与鲸鱼优化算法(WOA)相结合。因此,本文提出的算法被命名为基于群速度的WOA (SV-WOA)。最后,通过分析验证了所提模型的有效性。
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引用次数: 0
Stability for a retarded impulsive Cohen–Grossberg BAM neural network system 迟滞脉冲Cohen-Grossberg BAM神经网络系统的稳定性
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-08-30 DOI: 10.1080/0952813X.2021.1966840
Sakina Othmani, N. Tatar
ABSTRACT In this paper, an impulsive Cohen-Grossberg bidirectional associative neural network with both time-varying and distributed delays is examined. Novel sufficient conditions for deriving stability with a desired rate, including the exponential one, are obtained. We consider a large class of admissible kernels encompassing the existing ones. Our findings cover the existing stability results in the literature. Finally, a numerical example is given for the validation of the theoretical outcomes.
研究了一种具有时变时滞和分布时滞的脉冲Cohen-Grossberg双向关联神经网络。得到了具有期望速率(包括指数速率)的稳定性的新的充分条件。我们考虑一大类包含现有核的可容许核。我们的发现涵盖了文献中已有的稳定性结果。最后,通过数值算例对理论结果进行了验证。
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引用次数: 0
Refined PSO Clustering for Not Well-Separated Data 非分离数据的改进PSO聚类
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-08-27 DOI: 10.1080/0952813X.2021.1970238
Chilankamol Sunny, Shibu Kumar K. B
ABSTRACT Cluster analysis is the most popular and often the foremost task in big data analytics as it helps in unearthing hidden patterns and trends in data. Traditional single-objective clustering techniques often suffer from accuracy fluctuations especially when applied over data groups of varying densities and imbalanced distribution as well as in the presence of outliers. This paper presents a multi-phase clustering solution that achieves good accuracy measures even in the case of noisy and not- well-separated data (linearly not separable data). The proposed design combines a two-stage Particle Swarm Optimisation (PSO) clustering with K-means logic and a state-of-the-art outlier removal technique. The use of two different optimisation criteria in the two stages of PSO clustering equips the model with the ability to escape local minima traps in the process of convergence. Extensive experiments featuring a wide variety of data have been carried out and the system could achieve accuracy levels as high as 99.9% and an average of 87.4% on notwell-separated data. The model has also been proved to be robust on eight out of the ten datasets of the Fundamental Clustering Problem Suit (FCPS), a benchmark for clustering algorithms.
聚类分析是大数据分析中最流行的,也是最重要的任务,因为它有助于揭示数据中隐藏的模式和趋势。传统的单目标聚类技术往往存在精度波动,特别是当应用于不同密度和分布不平衡的数据组以及存在异常值时。本文提出了一种多阶段聚类解决方案,即使在有噪声和非分离数据(线性不可分离数据)的情况下也能获得良好的精度测量。提出的设计结合了两阶段粒子群优化(PSO)聚类与K-means逻辑和最先进的离群值去除技术。在PSO聚类的两个阶段使用两种不同的优化准则,使模型能够在收敛过程中逃脱局部最小陷阱。在大量数据的实验中,该系统可以达到高达99.9%的准确率,在未分离的数据上平均达到87.4%。该模型还被证明在基本聚类问题套件(FCPS)的10个数据集中的8个数据集上具有鲁棒性,FCPS是聚类算法的基准。
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引用次数: 2
Prediction of cardiovascular disease using deep learning algorithms to prevent COVID 19 使用深度学习算法预测心血管疾病以预防COVID - 19
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-08-25 DOI: 10.1080/0952813X.2021.1966842
M. S, Arockia Raj Y, Abhishek Kumar, V. A. Ashok Kumar, Ankit Kumar, E. D, V. D. A. Kumar, Chitra B, A. Abirami
ABSTRACT The leading cause of mortality is due to cardio vascular disease (CVD) globally. CVD is the major cause of death all over the world for the past years because an estimation of 17.5 million people died from CVD in 2012 and premature death from CVD is 37% below the age of 70. In health-care field, the data generated are large, critical, and more complex and multi-dimensional. In the current situation, the medical professionals working in the field of heart disease can predict up to 67% accuracy but the doctors need an accurate prediction of heart disease. The ultimate goal of this study is to early prediction of CVD by enhancing both predictive analysis and probabilistic classification. Deep learning techniques such as CNN and RNN emulate human cognition and learn from training examples to predict future events. As a result, the future prediction of the cardiovascular disease has been found. The prediction of CVD can be used for the prevention of COVID-19 disease using deep learning algorithm. So, this can be employed to detect the early stage of the disease. The importance of the CVD refers to the conditions like narrowed or blocked blood vessels which may lead to some other diseases like heart attack, chest pain or stroke.
全球死亡的主要原因是心血管疾病(CVD)。心血管疾病是过去几年全世界死亡的主要原因,因为2012年估计有1750万人死于心血管疾病,70岁以下心血管疾病导致的过早死亡占37%。在卫生保健领域,产生的数据量大、关键,而且更为复杂和多维。在目前的情况下,在心脏病领域工作的医疗专业人员可以预测高达67%的准确率,但医生需要准确的预测心脏病。本研究的最终目的是通过增强预测分析和概率分类来早期预测心血管疾病。CNN和RNN等深度学习技术模拟人类认知,并从训练示例中学习以预测未来事件。由此,对未来心血管疾病的预测有了一定的发现。CVD的预测可用于使用深度学习算法预防COVID-19疾病。因此,这可以用来检测疾病的早期阶段。心血管疾病的重要性是指血管变窄或堵塞,这可能导致一些其他疾病,如心脏病发作,胸痛或中风。
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引用次数: 2
A novel solution of an elastic net regularisation for dementia knowledge discovery using deep learning 一种基于深度学习的痴呆知识发现弹性网络正则化新解决方案
IF 2.2 4区 计算机科学 Q3 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2021-08-21 DOI: 10.1080/0952813X.2021.1970237
K. Shrestha, O. H. Alsadoon, A. Alsadoon, Tarik A. Rashid, R. Ali, P. Prasad, Oday D. Jerew
ABSTRACT Accurate classification of Magnetic Resonance Images (MRI) is essential to accurately predict Mild Cognitive Impairment (MCI) to Alzheimer’s Disease (AD) conversion. Meanwhile, deep learning has been successfully implemented to classify and predict dementia disease. However, the accuracy of MRI image classification is low. This paper aims to increase the accuracy and reduce the processing time of classification through Deep Learning Architecture by using Elastic Net Regularisation in Feature Selection. The proposed system consists of Convolutional Neural Network (CNN) to enhance the accuracy of classification and prediction by using Elastic Net Regularisation. Initially, the MRI images are fed into CNN for features extraction through convolutional layers alternate with pooling layers, and then through a fully connected layer. After that, the features extracted are subjected to Principle Component Analysis (PCA) and Elastic Net Regularisation for feature selection. Finally, the selected features are used as an input to Extreme Machine Learning (EML) for the classification of MRI images. The result shows that the accuracy of the proposed solution is better than the current system. In addition to that, the proposed method has improved the classification accuracy by 5% on average and reduced the processing time by 30 ~ 40 seconds on average. The proposed system is focused on improving the accuracy and processing time of MCI converters/non-converters classification. It consists of features extraction, feature selection, and classification using CNN, FreeSurfer, PCA, Elastic Net, and Extreme Machine Learning. Finally, this study enhances the accuracy and the processing time by using Elastic Net Regularisation, which provides important selected features for classification.
磁共振图像(MRI)的准确分类对于准确预测轻度认知障碍(MCI)向阿尔茨海默病(AD)的转化至关重要。同时,深度学习在痴呆症分类和预测方面也得到了成功的应用。然而,MRI图像分类的准确率较低。本文旨在通过深度学习架构,在特征选择中使用弹性网正则化,提高分类的准确率,减少分类的处理时间。该系统由卷积神经网络(CNN)组成,通过弹性网络正则化来提高分类和预测的精度。首先,将MRI图像输入CNN,通过卷积层与池化层交替进行特征提取,然后通过全连接层进行特征提取。然后,对提取的特征进行主成分分析(PCA)和弹性网正则化进行特征选择。最后,选择的特征被用作极限机器学习(EML)的输入,用于MRI图像的分类。结果表明,该方法的精度优于现有系统。此外,该方法将分类精度平均提高了5%,处理时间平均缩短了30 ~ 40秒。该系统旨在提高MCI转换/非转换分类的准确性和处理时间。它包括特征提取、特征选择和分类,使用CNN、FreeSurfer、PCA、Elastic Net和Extreme Machine Learning。最后,本研究利用弹性网正则化方法提高了分类的准确率和处理时间,为分类提供了重要的选择特征。
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引用次数: 2
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Journal of Experimental & Theoretical Artificial Intelligence
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