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Periodic distributed delivery routes planning subject to operation uncertainty of vehicles travelling in a convoy 车队车辆运行不确定性下的周期性分布式配送路线规划
IF 2.7 Q1 Computer Science Pub Date : 2022-01-01 DOI: 10.1080/24751839.2022.2051925
G. Bocewicz, Peter Nielsen, Czeslaw Smutnicki, J. Pempera, Z. Banaszak
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引用次数: 0
Reconstruction of 3D digital heritage objects for VR and AR applications 为VR和AR应用重建3D数字遗产
IF 2.7 Q1 Computer Science Pub Date : 2021-12-02 DOI: 10.1080/24751839.2021.2008133
V. Nguyen, Son Thanh Le, Minh Khai Tran, Ha Manh Tran
ABSTRACT Constructing the 3D objects based on geometric modelling and graphical techniques is a well-known research activity applied in computer graphics. Techniques to process graphical models are widely used in the field of digital heritage and 3D game. Virtual reality (VR) and Augmented Reality (AR) are technical trends nowadays that can be studied and used in digital high-tech fields like medical training, digital heritage, entertainment industry, digital tourism and museum, etc. In this research, we present a new proposed method for reconstructing the 3D objects of tangible cultural heritages in the virtual environment based on the combination of geometric modelling, computer graphics, VR and AR technologies. The method consists of the following steps: we first collect data of a real object by using a 3D scanner. After processing obtained data, the output is a 3D point cloud. In the next step, we remove noisy data and triangulate the object surface. The novelty point focuses on reconstructing the 3D object by filling the holes. At the end, we build VR and AR applications for visualizing a virtual museum. The contribution of this research leads to open the door for applying in other fields such as 3D Game industry or digital tourism.
摘要基于几何建模和图形技术构建三维物体是计算机图形学中一项著名的研究活动。处理图形模型的技术被广泛应用于数字遗产和3D游戏领域。虚拟现实(VR)和增强现实(AR)是当今的技术趋势,可以在医疗培训、数字遗产、娱乐产业、数字旅游和博物馆等数字高科技领域进行研究和应用,基于几何建模、计算机图形学、VR和AR技术的结合,提出了一种在虚拟环境中重建有形文化遗产三维物体的新方法。该方法包括以下步骤:我们首先使用3D扫描仪收集真实物体的数据。在处理所获得的数据之后,输出是3D点云。在下一步中,我们将去除有噪声的数据,并对对象表面进行三角测量。新颖之处在于通过填充孔洞来重建3D对象。最后,我们构建了VR和AR应用程序,用于可视化虚拟博物馆。这项研究的贡献为3D游戏产业或数字旅游等其他领域的应用打开了大门。
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引用次数: 7
High accuracy human activity recognition using machine learning and wearable devices’ raw signals 利用机器学习和可穿戴设备的原始信号进行高精度的人类活动识别
IF 2.7 Q1 Computer Science Pub Date : 2021-11-10 DOI: 10.1080/24751839.2021.1987706
Andonis Papaleonidas, A. Psathas, L. Iliadis
ABSTRACT Human activity recognition (HAR) is vital in a wide range of real-life applications such as health monitoring of olderly people, abnormal behaviour detection and smart home management. HAR systems can employ smart human-computer interfaces and be parts of active, intelligent surveillance systems. The increasing use of high-tech mobile and wearable devices, such as smart phones, smart watches and smart bands, can be the key elements in building high accuracy models, as they can provide a tremendous number of signals. This research aims to develop and test a machine learning (ML) model, which can successfully recognize a performed activity using raw signals obtained by wearable devices. Photoplethysmography – Daily Life Activities (PPG-DaLiA) dataset contains data related to 15 individuals wearing physiological and motion sensors. PPG-DaLiA was used as an input to a custom data segmentation model to obtain the respective training and testing dataset. Overall, 23 ML well-established models were employed. The weighted and the fine k-nearest neighbours, the fine Gaussian support vector machines and the bagged trees were the algorithms that achieved the best performance with a very high accuracy level.
人体活动识别(HAR)在老年人健康监测、异常行为检测和智能家居管理等广泛的现实应用中至关重要。HAR系统可以采用智能人机界面,并成为主动智能监控系统的一部分。越来越多地使用高科技移动和可穿戴设备,如智能手机,智能手表和智能手环,可以成为建立高精度模型的关键因素,因为它们可以提供大量的信号。本研究旨在开发和测试一种机器学习(ML)模型,该模型可以使用可穿戴设备获得的原始信号成功识别已执行的活动。光电容积脉搏图-日常生活活动(PPG-DaLiA)数据集包含与15个佩戴生理和运动传感器的个体相关的数据。使用PPG-DaLiA作为自定义数据分割模型的输入,获得相应的训练和测试数据集。总的来说,采用了23 ML成熟模型。其中,加权和精细k近邻、精细高斯支持向量机和袋装树算法的性能最好,准确率很高。
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引用次数: 3
Supportness of the protein complex standards in PPI networks PPI网络中蛋白质复合物标准的支持性
IF 2.7 Q1 Computer Science Pub Date : 2021-10-27 DOI: 10.1080/24751839.2021.1989241
Milana Grbić, Vukasin Crnogorac, M. Predojević, Aleksandar Kartelj, Dragan Matic
ABSTRACT A protein complex is a collection of two or more associated proteins that interact with each other in a stable long-term interaction. Protein complexes have essential roles in regulatory processes, cellular functions and signaling cascades. This paper examines how well-known collections of protein complexes are supported in protein–protein interaction (PPI) networks, i.e. whether they form connected subnetworks in a particular PPI network. For that purpose, we apply a variable neighbourhood search (VNS) metaheuristic algorithm for adding the minimum number of interactions in order to support protein complexes. Experimental results obtained on several PPI networks (BioGRID, WI-PHI and String) and four protein complex standards (MIPS, TAP06, SGD and CYC2008) show that considered networks do not include enough PPIs to support all complexes from complex standards. Deeper analysis indicates that there exists common PPIs which are probably missing in the considered networks. These findings can be useful for further biological interpretation and developing of PPI prediction models.
摘要蛋白质复合体是两种或两种以上相关蛋白质的集合,它们在稳定的长期相互作用中相互作用。蛋白质复合物在调节过程、细胞功能和信号级联中具有重要作用。本文研究了众所周知的蛋白质复合物集合是如何在蛋白质-蛋白质相互作用(PPI)网络中得到支持的,即它们是否在特定的PPI网络中形成连接的子网络。为此,我们应用可变邻域搜索(VNS)元启发式算法来添加最小数量的相互作用,以支持蛋白质复合物。在几种PPI网络(BioGRID、WI-PHI和String)和四种蛋白质复合物标准(MIPS、TAP06、SGD和CYC2008)上获得的实验结果表明,所考虑的网络不包括足够的PPI来支持来自复合物标准的所有复合物。更深入的分析表明,存在常见的PPI,这些PPI可能在所考虑的网络中缺失。这些发现可用于进一步的生物学解释和PPI预测模型的开发。
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引用次数: 0
An enhanced evolutionary approach for solving the community detection problem 一种用于解决社区检测问题的增强进化方法
IF 2.7 Q1 Computer Science Pub Date : 2021-10-17 DOI: 10.1080/24751839.2021.1987076
Salmi Cheikh, Bouchema Sara, Zaoui Sara
ABSTRACT Community detection concepts can be encountered in many disciplines such as sociology, biology, and computer science, etc. Nowadays, a huge amount of data is produced by digital social networks and needs to be processed. In fact, the analysis of this data makes it possible to extract new knowledge about groups of individuals, their communication modes, and orientations. This knowledge can be exploited in marketing, security, Web usage, and many other decisional purposes. Community detection problem (CDP) is NP-hard and many algorithms have been designed to solve it but not to a satisfactory level. In this paper, we propose a hybrid heuristic approach based on a combination of genetic algorithms and tabu search that does not need any prior knowledge about the number or the size of each community to tackle the CDP. The method is efficient because it uses an enhanced encoding, which excludes redundant chromosomes while performing genetic operations. This approach is evaluated on a wide range of real-world networks. The result of experiments shows that the proposed algorithm outperforms many other algorithms according to the modularity measure.
摘要社区检测的概念在社会学、生物学和计算机科学等许多学科中都可以遇到。如今,数字社交网络产生了大量的数据,需要进行处理。事实上,通过对这些数据的分析,可以提取关于个人群体、他们的沟通模式和取向的新知识。这些知识可以用于营销、安全、网络使用和许多其他决策目的。社区检测问题(CDP)是一个NP难问题,已经设计了许多算法来解决它,但并没有达到令人满意的水平。在本文中,我们提出了一种基于遗传算法和禁忌搜索相结合的混合启发式方法,该方法不需要任何关于每个社区的数量或大小的先验知识来解决CDP。这种方法是有效的,因为它使用了增强的编码,在进行遗传操作时排除了多余的染色体。这种方法在广泛的现实世界网络上进行了评估。实验结果表明,该算法在模块性度量方面优于其他算法。
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引用次数: 0
Gender and region detection from human voice using the three-layer feature extraction method with 1D CNN 基于1D CNN的三层特征提取方法在人声性别和区域检测中的应用
IF 2.7 Q1 Computer Science Pub Date : 2021-10-10 DOI: 10.1080/24751839.2021.1983318
Mohammad Amaz Uddin, Refat Khan Pathan, Md Sayem Hossain, Munmun Biswas
ABSTRACT Analysing the human voice has always been a challenge to the engineering society for various purposes such as product review, emotional state detection, developing AI, and much more. Two basic grounds of voice or speech analysis are to detect human gender and the geographical region based on accent. This study presents a three-layer feature extraction method from the raw human voice to detect the gender as male or female, as well as the region from where that voice belongs. Fundamental frequency, spectral entropy, spectral flatness, and mode frequency have been calculated in the first layer of feature extraction. On the other hand, Mel Frequency Cepstral Coefficient has been used to extract the features in the second layer and linear predictive coding in the third layer. Regular voice contains some noises which have been removed with multiple audio data filtering processes to get noise-free smooth data. Multi-Output-based 1D Convolutional Neural Network has been used to recognize gender and region from a combined dataset which consists of TIMIT, RAVDESS, and BGC datasets. The model has successfully predicted the gender with 93.01% and region with 97.07% accuracy. This method works better than usual state-of-the-art methods in separate datasets along with the combined dataset on both gender and region classification.
摘要分析人声一直是工程社会面临的挑战,用于各种目的,如产品审查、情绪状态检测、开发人工智能等。语音分析的两个基本依据是检测人类性别和基于口音的地理区域。本研究提出了一种从原始人声中提取三层特征的方法,以检测男性或女性的性别,以及该语音所属的区域。在第一层特征提取中计算了基频、谱熵、谱平坦度和模式频率。另一方面,在第二层中使用梅尔频率倒谱系数来提取特征,在第三层中使用线性预测编码。常规语音中包含一些噪声,这些噪声已通过多次音频数据过滤过程去除,以获得无噪声的平滑数据。基于多输出的1D卷积神经网络已被用于从由TIMIT、RAVDESS和BGC数据集组成的组合数据集中识别性别和区域。该模型成功地预测了性别,准确率为93.01%,地区预测准确率为97.07%。这种方法在单独的数据集以及在性别和区域分类方面的组合数据集中比通常的最先进的方法效果更好。
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引用次数: 6
New convolutional neural network models for efficient object recognition with humanoid robots 基于卷积神经网络的人形机器人高效目标识别新模型
IF 2.7 Q1 Computer Science Pub Date : 2021-10-06 DOI: 10.1080/24751839.2021.1983331
Simge Nur Aslan, A. Uçar, C. Güzelı̇ş
ABSTRACT Humanoid robots are expected to manipulate the objects they have not previously seen in real-life environments. Hence, it is important that the robots have the object recognition capability. However, object recognition is still a challenging problem at different locations and different object positions in real time. The current paper presents four novel models with small structure, based on Convolutional Neural Networks (CNNs) for object recognition with humanoid robots. In the proposed models, a few combinations of convolutions are used to recognize the class labels. The MNIST and CIFAR-10 benchmark datasets are first tested on our models. The performance of the proposed models is shown by comparisons to that of the best state-of-the-art models. The models are then applied on the Robotis-Op3 humanoid robot to recognize the objects of different shapes. The results of the models are compared to those of the models, such as VGG-16 and Residual Network-20 (ResNet-20), in terms of training and validation accuracy and loss, parameter number and training time. The experimental results show that the proposed model exhibits high accurate recognition by the lower parameter number and smaller training time than complex models. Consequently, the proposed models can be considered promising powerful models for object recognition with humanoid robots.
摘要:类人机器人有望操纵他们以前在现实生活中从未见过的物体。因此,机器人具有物体识别能力是很重要的。然而,在不同的位置和不同的物体位置上,物体识别仍然是一个具有挑战性的实时问题。本文提出了四种基于卷积神经网络的小结构仿人机器人目标识别模型。在所提出的模型中,使用了一些卷积的组合来识别类标签。MNIST和CIFAR-10基准数据集首先在我们的模型上进行了测试。通过与最先进的最佳模型的比较,显示了所提出的模型的性能。然后将这些模型应用于Robotis-Op3人形机器人上,以识别不同形状的物体。在训练和验证准确性和损失、参数数量和训练时间方面,将模型的结果与VGG-16和残差网络-20(ResNet-20)等模型的结果进行了比较。实验结果表明,与复杂模型相比,该模型具有较低的参数数量和较小的训练时间,具有较高的识别精度。因此,所提出的模型可以被认为是人形机器人物体识别的有前途的强大模型。
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引用次数: 0
Development of real size IT systems with language competence as a challenge for a Less-Resourced Language: a methodological proposal for Indo-Aryan languages 开发具有语言能力的真实规模的IT系统是对资源较少的语言的挑战:印度雅利安语言的方法论建议
IF 2.7 Q1 Computer Science Pub Date : 2021-10-02 DOI: 10.1080/24751839.2021.1966236
Z. Vetulani, Grazyna Vetulani, P. Mohanty
ABSTRACT In this paper, based on the example of our early works for Polish, we want to share our experience in the challenging task of developing NLP-based technologies in the situation of initial scarcity of digital language resources that ranked Polish among the Less-Resourced Languages. We present some of our projects aiming at language resources and tools we had to create in order to be able to process texts in Polish and develop real-scale systems with language understanding competence. The case study we present here is the rule-based system POLINT-112-SMS for improving information management in emergency situations. We argue in favour of the lexicon-grammar approach to the formal description of inflecting languages and present our current work on this grammatical paradigm. Our current work is on the implementation of the ideas presented in the first part of the paper on three prominent Indian languages, that is, Hindi, Odia, and Bengali.
在本文中,基于我们早期对波兰语的工作,我们想分享我们在数字语言资源最初稀缺的情况下开发基于nlp技术的挑战任务的经验,波兰语被列为资源较少的语言。我们展示了一些针对语言资源和工具的项目,我们必须创建这些资源和工具,以便能够处理波兰语文本并开发具有语言理解能力的实际规模系统。我们在此介绍的案例研究是基于规则的POLINT-112-SMS系统,用于改善紧急情况下的信息管理。我们主张用词典-语法方法来正式描述屈折语言,并介绍我们目前在这种语法范式上的工作。我们目前的工作是将论文第一部分中提出的关于三种主要印度语言(即印地语、奥迪亚语和孟加拉语)的想法付诸实施。
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引用次数: 1
Prediction of user loyalty in mobile applications using deep contextualized word representations 使用深度语境化词表示预测移动应用程序中的用户忠诚度
IF 2.7 Q1 Computer Science Pub Date : 2021-10-01 DOI: 10.1080/24751839.2021.1981684
Z. H. Kilimci
ABSTRACT Customer loyalty is important for many industries, including banking, telecommunications, gaming, and shopping, in terms of sustainability. In mobile applications, it is observed that the demand rises with the usage of mobile devices such as smartphones. Therefore, it is important to predict when players tend to leave an application. Most of the studies so far focus on churn prediction or customer loyalty in mobile applications by analyzing demographic, economic, and behavioral data about customers. In this work, we introduce sentiment analysis-based customer loyalty prediction in mobile applications using word embeddings, deep learning algorithms, and deep contextualized word representations. To our knowledge, this is the first study to evaluate loyalty of customers analyzing sentiments of users from their comments using deep learning, word embedding, and deep contextualized word representation models. For this purpose, CNNs, RNNs, LSTMs, BERT, MBERT, DistilBERT, RoBERT are used for classification purpose. On the other hand, word embedding models such as Word2Vec, GloVe, and FastText are employed for text representation. To demonstrate the impact of proposed model, comprehensive experiments are performed on seven different datasets. The experiment results show sentiment analysis of users in mobile applications can be a powerful indicator in terms of predicting customer loyalty.
客户忠诚度对于包括银行、电信、游戏和购物在内的许多行业的可持续性都很重要。在移动应用程序中,可以观察到需求随着智能手机等移动设备的使用而上升。因此,预测玩家何时会离开应用程序非常重要。到目前为止,大多数研究都是通过分析用户的人口统计、经济和行为数据来关注手机应用的流失预测或用户忠诚度。在这项工作中,我们使用词嵌入、深度学习算法和深度上下文化词表示,在移动应用程序中引入基于情感分析的客户忠诚度预测。据我们所知,这是第一个评估客户忠诚度的研究,该研究使用深度学习、词嵌入和深度语境化词表示模型,从用户的评论中分析用户的情绪。为此,使用cnn、rnn、LSTMs、BERT、MBERT、DistilBERT、RoBERT进行分类。另一方面,使用Word2Vec、GloVe和FastText等词嵌入模型进行文本表示。为了验证所提出的模型的影响,在七个不同的数据集上进行了综合实验。实验结果表明,移动应用中用户情绪分析可以作为预测用户忠诚度的有力指标。
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引用次数: 3
The application of machine learning and deep learning in sport: predicting NBA players’ performance and popularity 机器学习和深度学习在体育中的应用:预测NBA球员的表现和受欢迎程度
IF 2.7 Q1 Computer Science Pub Date : 2021-09-28 DOI: 10.1080/24751839.2021.1977066
Nguyen Hoang Nguyen, Duy Thien An Nguyen, Bingkun Ma, Jiang Hu
ABSTRACT Basketball is known for the vast amount of data collected for each player, team, game, and season. As a result, basketball is an ideal domain to work on different data analysis techniques to gain useful insights. In this study, we continued our previous study published in 2020 Computational Collective Intelligence (12th International Conference, ICCCI 2020, Da Nang, Vietnam, November 30 – December 3, 2020, Proceedings) reviewing some important factors to predict players’ future performance and being selected in an All-Star game, one of the most prestigious events, of National Basket Association league. Besides traditional Machine Learning, Deep Learning is also applied in this study for prediction purpose. However, compared to traditional Machine Learning, Deep Learning’s performance is not as good for our dataset. It is understandable when our data are relatively small and structured with a few predictor variables which limited Deep Learning’s ability to deal with a vast amount of Big Data. Our final results, through both Regression and Classification Analysis, indicated that scoring is the most important factor from the primary players for any team and also basketball fan’s favourable style.
篮球以收集每个球员、球队、比赛和赛季的大量数据而闻名。因此,篮球是研究不同数据分析技术以获得有用见解的理想领域。在本研究中,我们继续了之前发表在2020年计算集体智能(第12届国际会议,ICCCI 2020,越南岘港,2020年11月30日至12月3日,Proceedings)上的研究,回顾了预测球员未来表现和入选全明星赛的一些重要因素,全明星赛是全国篮协联赛最负盛名的赛事之一。除了传统的机器学习之外,本研究还应用了深度学习来进行预测。然而,与传统的机器学习相比,深度学习在我们的数据集上的表现并不好。当我们的数据相对较小且只有几个预测变量时,这是可以理解的,这限制了深度学习处理大量大数据的能力。通过回归和分类分析,我们的最终结果表明,得分是任何球队的主要球员最重要的因素,也是篮球迷的有利风格。
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引用次数: 14
期刊
Journal of Information and Telecommunication
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