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AN IMPROVEMENT OF TRUSTED SAFE SEMI-SUPERVISED FUZZY CLUSTERING METHOD WITH MULTIPLE FUZZIFIERS 多模糊化的可信安全半监督模糊聚类方法的改进
Pub Date : 2022-03-20 DOI: 10.15625/1813-9663/38/1/16720
Tran Manh Tuan, Phung The Huan, Pham Huy Thong, T. Ngan, Le Hoang Son
Data clustering are applied in various fields such as document classification, dental X-ray image segmentation, medical image segmentation, etc. Especially, clustering algorithms are used in satellite image processing in many important application areas, including classification of vehicles participating in traffic, logistics, classification of satellite images to forecast droughts, floods, forest fire, etc. In the process of collecting satellite image data, there are a number of factors such as clouds, weather, ... that can affect to image quality. Images with low quality will make the performance of clustering algorithms decrease. Apart from that, the parameter of fuzzification in clustering algorithms also affects to clustering results. In the past, clustering methods often used the same fuzzification parameter, m = 2. But in practice, each element should have its own parameter m. Therefore, determining the parameters m is necessary to increase fuzzy clustering performance. In this research, an improvement algorithm for the data partition with confidence problem and multi fuzzifier named as TS3MFCM is introduced. The proposed method consists of three steps namely as “FCM for labeled data”, “Data transformation”, and “Semi-supervised fuzzy clustering with multiple point fuzzifiers”. The proposed TS3MFCM method is implemented and experimentally compared against with the Confidence-weighted Safe Semi-Supervised Clustering (CS3FCM). The performance of proposed method is better than selected methods in both computational time and clustering accuracy on the same datasets
数据聚类应用于文档分类、牙科x射线图像分割、医学图像分割等多个领域。特别是,聚类算法在卫星图像处理中有许多重要的应用领域,包括参与交通、物流的车辆分类,以及对卫星图像进行分类预测干旱、洪水、森林火灾等。在采集卫星图像数据的过程中,有云层、天气、…这可能会影响图像质量。低质量的图像会使聚类算法的性能下降。除此之外,聚类算法中的模糊化参数也会影响聚类结果。过去,聚类方法通常使用相同的模糊化参数m = 2。但在实际中,每个元素都应该有自己的参数m。因此,确定参数m是提高模糊聚类性能的必要条件。本文提出了一种基于置信问题和多模糊指标的数据分割改进算法TS3MFCM。该方法由“标记数据的FCM”、“数据变换”和“多点模糊化半监督模糊聚类”三个步骤组成。实现了TS3MFCM方法,并与置信度加权安全半监督聚类(CS3FCM)进行了实验比较。在相同的数据集上,该方法在计算时间和聚类精度上都优于已有的方法
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引用次数: 0
A FAST OVERLAPPING COMMUNITY DETECTION ALGORITHM BASED ON LABEL PROPAGATION AND SOCIAL NETWORK GRAPH CLUSTERING COEFFICIENT 一种基于标签传播和社交网络图聚类系数的快速重叠社区检测算法
Pub Date : 2022-03-20 DOI: 10.15625/1813-9663/38/1/16537
Nguyen Hien Trinh, Doan Van Ban, Vu Vinh Quang, Cáp Thanh Tùng
Detecting community structure on social network has been an important and interesting issue on which many researchers have paid much attention and developed applications. Many graph clustering algorithms have been applied to find disjoint communities, i.e each node belongs to a single community. However, for social network in particular, public communication network in general, most of communities are not completely detached but they may be embedding, overlapping or crossing, that means certain nodes can belong to more than one community. Overlapping node plays a role of interface between communities and it is really interesting to study the community establishment of these nodes because it reflects dynamic behaviuor of participants.This article introduces the algorithm to find overlapping communities on huge social network. The proposed COPACN algorithm has been developed on the basis of label propagation, using advanced clustering coefficient to find overlapping communities on social network. Exprermental results on a set of popular, standard social networks and certain real network have shown the high speed and high effiency in finding overlapping structures.
社交网络上的社区结构检测一直是一个重要而有趣的问题,受到许多研究者的关注并开发了应用。许多图聚类算法被用于寻找不相交的群体,即每个节点属于一个单一的群体。然而,对于社交网络,特别是公共通信网络,大多数社区并不是完全分离的,它们可能是嵌入的,重叠的或交叉的,这意味着某些节点可能属于多个社区。重叠节点作为社区之间的接口,反映了参与者的动态行为,因此研究重叠节点的社区建立是一个非常有趣的问题。本文介绍了在大型社交网络中寻找重叠社区的算法。本文提出的COPACN算法是在标签传播的基础上发展起来的,利用先进的聚类系数来寻找社会网络上重叠的社区。在一组流行的、标准的社交网络和某些真实网络上的实验结果表明,该方法可以快速高效地发现重叠结构。
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引用次数: 0
AN EFFECTIVE DEEP LEARNING MODEL FOR RECOGNITION OF ANIMALS AND PLANTS 一种有效的动植物识别深度学习模型
Pub Date : 2022-03-20 DOI: 10.15625/1813-9663/38/1/16309
Trinh Thi Loan, P. T. Anh, Le Viet Nam, Hoang Van Dung
This paper presents a deep learning model to address the problem of recognition of animals and plants. The context of this work is to make an effort in protection of rare species that are seriously faced to the risk of extinction in Vietnam such as Panthera pardus, Dalbergia cochinchinensis, Macaca mulatta. The proposed approach exploits the advanced learning ability of convolutional neural networks and Inception residual structures to design a lightweight model for classification task. We also apply the transfer learning technique to fine-tune the two state-of-the-art methods, MobileNetV2 and InceptionV3, specific to our own dataset. Experimental results demonstrate the superiority of our object predictor (e.g., 95.8% accuracy) in comparison with other methods. In addition, the proposed model works very efficiently with the inference speed of around 113 FPS on a CPU machine, enabling it for deployment on mobile environment.
提出了一种解决动植物识别问题的深度学习模型。本研究的背景是为保护越南面临严重灭绝危险的珍稀物种如Panthera pardus、Dalbergia cochinchinensis、Macaca mulatta而努力。该方法利用卷积神经网络和Inception残差结构的高级学习能力,为分类任务设计轻量级模型。我们还应用迁移学习技术来微调两种最先进的方法,MobileNetV2和InceptionV3,具体到我们自己的数据集。实验结果表明,与其他方法相比,我们的目标预测器具有95.8%的准确率。此外,该模型在CPU机器上的推理速度约为113 FPS,非常有效,可以在移动环境下部署。
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引用次数: 0
A UNIFIED FRAMEWORK FOR WATER SURFACE EXTRACTION AND CHANGE PREDICTION IN IMAGERY DATA STREAMS 图像数据流中水面提取与变化预测的统一框架
Pub Date : 2022-03-20 DOI: 10.15625/1813-9663/38/1/16092
Tam Thanh Nguyen, Toan Thanh Nguyen, C. T. Phan, Quoc Viet Hung Nguyen
Changes in surface water might result in natural disasters such as floods, water shortages, landslides, waterborne diseases, which lead to loss of lives. Timely extracting for surface water and predicting its movement is essential for planning activities and decision-making processes. Most existing works on extracting water surface using satellite images focus on static spectral images and ignore the temporal evolution of data in streams, leading to less accuracy and lack of prediction power. Although some works realize that modeling temporal information of satellite signals could boost the forecasting capability on environmental changes, most of them only focus on prediction tasks independently and separately from the extraction task. In this paper, we propose a unified framework for water extraction and change prediction (WECP) built on top of imagery data streams, which are free to access from orbiting satellites, to locate water surface and predict its changes over time. Our framework is evaluated on Landsat 8 data due to its high spatial resolution. Empirical evaluations on real imagery datasets of different landscapes reveal that our framework is robust in extracting and capturing spatio-temporal changes in the water surface.
地表水的变化可能导致洪水、缺水、滑坡、水传播疾病等自然灾害,从而造成生命损失。及时提取地表水并预测其运动对规划活动和决策过程至关重要。现有的利用卫星图像提取水面的研究大多集中在静态光谱图像上,忽略了河流中数据的时间演变,导致精度较低,缺乏预测能力。虽然一些研究认识到对卫星信号的时间信息进行建模可以提高对环境变化的预测能力,但大多数研究都是将预测任务与提取任务分开进行独立的研究。在本文中,我们提出了一个基于图像数据流的水提取和变化预测(WECP)的统一框架,该框架可以免费从轨道卫星获取,以定位水面并预测其随时间的变化。我们的框架是在Landsat 8数据上进行评估的,因为它具有高空间分辨率。对不同景观的真实图像数据集的经验评估表明,我们的框架在提取和捕获水面时空变化方面具有鲁棒性。
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引用次数: 0
AUTOMATIC IDENTIFICATION OF SOME VIETNAMESE FOLK SONGS CHEO AND QUANHO USING CONVOLUTIONAL NEURAL NETWORKS 基于卷积神经网络的越南民歌“跳”和“全吼”的自动识别
Pub Date : 2022-03-20 DOI: 10.15625/1813-9663/38/1/15961
Chu Ba Thanh, Trinh Van Loan, Dao Thi Dieu Thuy
We can say that music in general is an indispensable spiritual food in human life. For Vietnamese people, folk music plays a very important role, it has entered the minds of every Vietnamese person right from the moment of birth through lullabies for children. In Vietnam, there are many different types of folk songs that everyone loves, and each has many different melodies. In order to archive and search music works with a very large quantity, including folk songs, it is necessary to automatically classify and identify those works. This paper presents the method of determining the feature parameters and then using the convolution neural network (CNN) to classify and identify some Vietnamese folk tunes as Quanho and Cheo. Our experimental results show that the average highest classification and identification accuracy are 99.92% and 97.67%, respectivel.
可以说,音乐是人类生活中不可缺少的精神食粮。对于越南人来说,民间音乐扮演着非常重要的角色,从出生的那一刻起,它就通过儿童摇篮曲进入了每个越南人的脑海。在越南,有许多不同类型的民歌,每个人都喜欢,每一个都有许多不同的旋律。为了对包括民歌在内的海量音乐作品进行归档和检索,有必要对这些作品进行自动分类和识别。本文提出了一种确定特征参数的方法,并利用卷积神经网络(CNN)对一些越南民间曲调进行分类和识别。实验结果表明,平均最高分类准确率为99.92%,最高识别准确率为97.67%。
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引用次数: 2
THE TRAVELING SALESMAN PROBLEM WITH MULTI-VISIT DRONE 多次访问无人机的旅行推销员问题
Pub Date : 2021-10-12 DOI: 10.15625/1813-9663/37/4/16180
Quang Minh Ha, Duy Manh Vu, Xuan Thanh Le, M. Hoang
This paper deals with the Traveling Salesman Problem with Multi-Visit Drone (TSP-MVD) in which a truck works in collaboration with a drone that can serve up to q > 1 customers consecutively during each sortie. We propose a Mixed Integer Linear Programming (MILP) formulation and a metaheuristic based on Iterated Local Search to solve the problem. Benchmark instances collected from the literature of the special case with q = 1 are used to test the performance of our algorithms. The obtained results show that our MILP model can solve a number of instances to optimality. This is the first time optimal solutions for these instances are reported. Our ILS performs better other algorithms in terms of both solution quality and running time on several class of instances. The numerical results obtained by testing the methods on new randomly generated instances show again the effectiveness of the methods as well as the positive impact of using the multi-visit drone.
本文研究了具有多访问无人机的旅行推销员问题(TSP-MVD),其中一辆卡车与一架无人机协同工作,在每次出动期间可以连续服务多达q > 1个客户。我们提出了一个混合整数线性规划(MILP)公式和一个基于迭代局部搜索的元启发式方法来解决这个问题。从q = 1的特殊情况的文献中收集的基准实例用于测试我们的算法的性能。仿真结果表明,该模型可以解决多个实例的最优问题。这是首次报道这些实例的最优解决方案。在若干类实例上,我们的ILS在解决方案质量和运行时间方面的性能优于其他算法。在新的随机生成实例上对方法进行了数值测试,结果再次表明了方法的有效性以及使用多访问无人机的积极影响。
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引用次数: 3
SENTIMENT ANALYSIS FOR SOCIAL MEDIA: A SURVEY 社交媒体的情感分析:一项调查
Pub Date : 2021-10-12 DOI: 10.15625/1813-9663/37/4/15892
H. Phan, N. Nguyen, D. Hwang
With the rapid development of the Internet industry, an increasing number of social media platforms have been developed. These social media platforms have become the main channels for communication among most users. Opinions from social media platforms provide the most updated and inclusive information. Sentiments from opinions are a valuable data source for solving many issues. Therefore, sentiment analysis has developed into one of the most popular natural language processing fields. Hence, improving the performance of sentiment analysis methods or discovering new problems related to these methods is essential. In this context, we must be aware of the general information relevant to this area. This survey presents a summary of the necessary stages for building a complete model to be used in sentiment analysis. For each procedure, we list the popular techniques that have been widely used in recent years. In addition, discussions and comparisons related to these methods are provided. Additionally, we discuss the challenges and possible research directions for future research in this field.
随着互联网行业的快速发展,越来越多的社交媒体平台应运而生。这些社交媒体平台已经成为大多数用户交流的主要渠道。来自社交媒体平台的意见提供了最新和最具包容性的信息。来自意见的情感是解决许多问题的宝贵数据来源。因此,情感分析已经发展成为自然语言处理领域中最受欢迎的领域之一。因此,提高情感分析方法的性能或发现与这些方法相关的新问题至关重要。在这方面,我们必须了解与这一领域有关的一般情况。这项调查提出了一个必要的阶段的总结,以建立一个完整的模型,用于情感分析。对于每个手术,我们列出了近年来广泛使用的流行技术。此外,还对这些方法进行了讨论和比较。此外,我们还讨论了该领域未来研究的挑战和可能的研究方向。
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引用次数: 0
INFORMATION AND MATHEMATICAL STRUCTURES CONTAINED IN THE NATURAL LANGUAGE WORD DOMAINS AND THEIR APPLICATIONS 包含在自然语言词域中的信息和数学结构及其应用
Pub Date : 2021-09-26 DOI: 10.15625/1813-9663/37/3/16106
N. C. Ho
The study stands on the standpoint that there exist relationships between real-world structures and their provided information in reality. Such relationships are essential because the natural language plays a specifically vital and crucial role in, e.g., capturing, conveying information, and accumulating knowledge containing useful high-level information. Consequently, it must contain certain semantics structures, including linguistic (L-) variables’ semantic structures, which are fundamental, similar to the math variables’ structures. In this context, the fact that the (L-) variables’ word domains can be formalized as algebraic semantics-based structures in an axiomatic manner, called hedge algebras (HAs,)  is still a novel event and essential for developing computational methods to simulate the human capabilities in problem-solving based on the so-called natural language-based formalism. Hedge algebras were founded in 1990. Since then, HA-formalism has been significantly developed and applied to solve several application problems in many distinct fields, such as fuzzy control, data classification and regression, robotics, L-time series forecasting, and L-data summarization. The study gives a survey to summarize specific distinguishing fundamental features of HA-formalism, its applicability in problem-solving, and its performance. 
本研究的观点是,现实世界的结构与其在现实中提供的信息之间存在关系。这种关系是必不可少的,因为自然语言在捕获、传递信息和积累包含有用高级信息的知识等方面起着特别重要和关键的作用。因此,它必须包含一定的语义结构,包括语言(L-)变量的语义结构,这是基本的,类似于数学变量的结构。在这种情况下,(L-)变量的词域可以以一种公理的方式形式化为基于代数语义的结构,称为对冲代数(HAs),这一事实仍然是一个新颖的事件,对于开发计算方法来模拟基于所谓的基于自然语言的形式主义解决问题的人类能力至关重要。对冲代数成立于1990年。从那时起,HA-formalism得到了显著的发展,并应用于解决许多不同领域的几个应用问题,如模糊控制、数据分类和回归、机器人、l -时间序列预测和l -数据汇总。本研究概述了ha -形式主义的具体区别基本特征,其在问题解决中的适用性及其性能。
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引用次数: 0
DEVELOPING REAL-TIME FACE MASK DETECTION WITH FACIAL TEMPERATURE MEASURE FOR COVID-19 INDOOR MONITORING SYSTEM 研制基于面部温度测量的新型冠状病毒室内实时口罩检测系统
Pub Date : 2021-09-26 DOI: 10.15625/1813-9663/37/3/15962
A. Aharari, J. Abe, K. Nakamatsu
The coronavirus (COVID-19) is the latest pandemic that hit human health in 2019. Wear a face mask in public areas to decrease the spread of the coronavirus. This work presents real-time face mask detection with facial temperature measures for the COVID-19 indoor monitoring system. Detecting people using ultrasonic sensors, face mask detection, and facial temperature measure using Grid-Eye Sensor are three modules applied in the proposed system. We also evaluated the proposed monitoring system in the real environment and confirmed the accuracy of 98.8% of mask detection.
冠状病毒(COVID-19)是2019年危害人类健康的最新大流行病。在公共场所戴口罩,以减少冠状病毒的传播。本研究为新型冠状病毒室内监测系统提供基于面部温度测量的实时口罩检测。采用超声波传感器进行人体检测、面罩检测和网格眼传感器进行面部温度测量是该系统的三个主要模块。我们还在真实环境中对所提出的监测系统进行了评估,并证实了掩模检测的准确率为98.8%。
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引用次数: 0
A HYBRID MODEL USING THE PRETRAINED BERT AND DEEP NEURAL NETWORKS WITH RICH FEATURE FOR EXTRACTIVE TEXT SUMMARIZATION 一种基于预训练的Bert和深度神经网络的混合模型,具有丰富的特征,用于抽取文本摘要
Pub Date : 2021-05-31 DOI: 10.15625/1813-9663/37/2/15980
Tuan Minh Luu, H. T. Le, T. Hoang
Deep neural networks have been applied successfully to extractive text summarization tasks with the accompany of large training datasets. However, when the training dataset is not large enough, these models reveal certain limitations that affect the quality of the system’s summary. In this paper, we propose an extractive summarization system basing on a Convolutional Neural Network and a Fully Connected network for sentence selection. The pretrained BERT multilingual model is used to generate embeddings vectors from the input text. These vectors are combined with TF-IDF values to produce the input of the text summarization system. Redundant sentences from the output summary are eliminated by the Maximal Marginal Relevance method. Our system is evaluated with both English and Vietnamese languages using CNN and Baomoi datasets, respectively. Experimental results show that our system achieves better results comparing to existing works using the same dataset. It confirms that our approach can be effectively applied to summarize both English and Vietnamese languages.
深度神经网络已经成功地应用于大型训练数据集的文本摘要提取任务。然而,当训练数据集不够大时,这些模型会显示出某些局限性,从而影响系统总结的质量。本文提出了一种基于卷积神经网络和全连接网络的句子抽取摘要系统。使用预训练的BERT多语言模型从输入文本生成嵌入向量。这些向量与TF-IDF值相结合,产生文本摘要系统的输入。利用最大边际相关性方法消除输出摘要中的冗余句子。我们的系统分别使用CNN和Baomoi数据集使用英语和越南语进行评估。实验结果表明,与使用相同数据集的现有工作相比,我们的系统取得了更好的效果。这证实了我们的方法可以有效地应用于英语和越南语的总结。
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引用次数: 1
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Journal of Computer Science and Cybernetics
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