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GRAPH BASED CLUSTERING WITH CONSTRAINTS AND ACTIVE LEARNING 具有约束和主动学习的基于图的聚类
Pub Date : 2021-03-29 DOI: 10.15625/1813-9663/37/1/15773
Vu-Tuan Dang, V. Vu, Hong-Quan Do, Thi Kieu Oanh Le
During the past few years, semi-supervised clustering has emerged as a new interesting direction in machine learning research. In a semi-supervised clustering algorithm, the clustering results can be significantly improved by using side information, which is available or collected from users. There are two main kinds of side information that can be learned in semi-supervised clustering algorithms including class labels(seeds) or pairwise constraints. In this paper, we propose a semisupervised graph based clustering algorithm that tries to use seeds and constraints in the clustering process, called MCSSGC. Moreover, we also introduce a simple but efficient active learning method to collect the constraints that can boost the performance of MCSSGC, named KMMFFQS. These obtained results show that the proposed algorithm can significantly improve the clustering process compared to some recent algorithms.
在过去的几年里,半监督聚类已经成为机器学习研究中一个有趣的新方向。在半监督聚类算法中,利用用户可用或收集的侧信息可以显著提高聚类结果。在半监督聚类算法中可以学习到两种主要的侧信息,包括类标签(种子)或成对约束。在本文中,我们提出了一种基于半监督图的聚类算法,该算法尝试在聚类过程中使用种子和约束,称为MCSSGC。此外,我们还引入了一种简单而有效的主动学习方法来收集可以提高MCSSGC性能的约束,称为KMMFFQS。实验结果表明,与现有算法相比,该算法能显著改善聚类过程。
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引用次数: 0
A TIME SERIES FORECASTING MODEL BASED ON LINGUISTIC FORECASTING RULES 基于语言预测规则的时间序列预测模型
Pub Date : 2021-03-29 DOI: 10.15625/1813-9663/37/1/15852
Phạm Đình Phong
The fuzzy time series (FTS) forecasting models have been being studied intensively over the past few years. Most of the researches focus on improving the effectiveness of the FTS forecasting models using time-invariant fuzzy logical relationship groups proposed by Chen et al. In contrast to Chen’s model, a fuzzy set can be repeated in the right-hand side of the fuzzy logical relationship groups of Yu’s model. N. C. Dieu enhanced Yu’s forecasting model by using the time-variant fuzzy logical relationship groups instead of the time-invariant ones. The forecasting models mentioned above partition the historical data into subintervals and assign the fuzzy sets to them by the human expert’s experience. N. D. Hieu et al. proposed a linguistic time series by utilizing the hedge algebras quantification to converse the numerical time series data to the linguistic time series. Similar to the FTS forecasting model, the obtained linguistic time series can define the linguistic, logical relationships which are used to establish the linguistic, logical relationship groups and form a linguistic forecasting model. In this paper, we propose a linguistic time series forecasting model based on the linguistic forecasting rules induced from the linguistic, logical relationships instead of the linguistic, logical relationship groups proposed by N. D. Hieu. The experimental studies using the historical data of the enrollments of University of Alabama observed from 1971 to 1992 and the daily average temperature data observed from June 1996 to September 1996 in Taipei show the outperformance of the proposed forecasting models over the counterpart ones.
模糊时间序列(FTS)预测模型在过去的几年中得到了广泛的研究。大多数研究都集中在利用Chen等人提出的时不变模糊逻辑关系群来提高FTS预测模型的有效性。与Chen的模型相反,Yu模型的模糊逻辑关系组的右侧可以重复一个模糊集。N. C. Dieu用时变模糊逻辑关系群代替定常模糊逻辑关系群对Yu的预测模型进行了改进。上述预测模型将历史数据划分为子区间,并根据人类专家的经验对其进行模糊集的分配。N. D. Hieu等人利用套期代数量化将数值时间序列数据转换为语言时间序列,提出了语言时间序列。与FTS预测模型类似,得到的语言时间序列可以定义语言、逻辑关系,用于建立语言、逻辑关系组,形成语言预测模型。本文提出了一种基于语言逻辑关系而不是N. D. Hieu提出的语言逻辑关系组的语言预测规则的语言时间序列预测模型。利用1971 ~ 1992年阿拉巴马大学招生历史资料和1996年6月~ 1996年9月台北市日平均气温资料进行的实验研究表明,所提出的预测模型优于同类预测模型。
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引用次数: 3
EFFICIENT CNN-BASED PROFILED SIDE CHANNEL ATTACKS 基于cnn的高效侧信道攻击
Pub Date : 2021-03-29 DOI: 10.15625/1813-9663/37/1/15418
Ngoc Quy Tran, Hong Quang Nguyen
Profiled side-channel attacks are now considered as a powerful form of side channel attacks used to break the security of cryptographic devices. A recent line of research has investigated a new profiled attack based on deep learning and many of them have used convolution neural network (CNN) as deep learning architecture for the attack. The effectiveness of the attack is greatly influenced by the CNN architecture. However, the CNN architecture used for current profiled attacks have often been based on image recognition fields, and choosing the right CNN architectures and parameters for adaption to profiled attacks is still challenging. In this paper, we propose an efficient profiled attack for unprotected and masking-protected cryptographic devices based on two CNN architectures, called CNNn, CNNd respectively. Both of CNN architecture parameters proposed in this paper are based on the property of points of interest on the power trace and further determined by the Grey Wolf Optimization (GWO) algorithm. To verify the proposed attacks, experiments were performed on a trace set collected from an Atmega8515 smart card when it performs AES-128 encryption, a DPA contest v4 dataset and the ASCAD public dataset.
侧信道攻击目前被认为是一种强大的侧信道攻击形式,用于破坏加密设备的安全性。最近的一项研究调查了一种基于深度学习的新攻击,其中许多人使用卷积神经网络(CNN)作为攻击的深度学习架构。攻击的有效性很大程度上受CNN架构的影响。然而,目前用于轮廓攻击的CNN架构通常是基于图像识别领域的,选择合适的CNN架构和参数来适应轮廓攻击仍然是一个挑战。在本文中,我们提出了一种基于两种CNN架构(分别称为CNNn, CNNd)的无保护和屏蔽保护加密设备的高效分析攻击。本文提出的两种CNN结构参数均基于功率轨迹上兴趣点的性质,并进一步由灰狼优化算法确定。为了验证所提出的攻击,在Atmega8515智能卡执行AES-128加密时收集的跟踪集,DPA竞赛v4数据集和ASCAD公共数据集上进行了实验。
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引用次数: 3
MAXIMIZING LIFETIME OF HETEROGENEOUS WIRELESS TURNABLE CAMERA SENSOR NETWORKS ENSURING STRONG BARRIER COVERAGE 最大限度地延长异构无线可旋转相机传感器网络的寿命,确保强大的屏障覆盖
Pub Date : 2021-03-29 DOI: 10.15625/1813-9663/37/1/15858
Nguyen Thi My Binh, H. T. Thanh Binh, N. Ngoc, Mai Dang Quan Anh, N. Phuong
Barrier coverage in wireless camera sensor networks (WCSNs) has drawn the attention of research community since it promises an extremely large potential in applications involve movement detection and surveillance. As the battery resources are limited, improving the efficiency of energy is one of the key drivers for prolonging the lifetime of barrier coverage. However, most prior studies on this problem only worked on the networks with homogeneous sensors as well as omni-directional sensing coverage. This paper thus investigates the problem of maximizing the network lifetime to ensure strong barrier coverage for heterogeneous case (MLBC-HWCSN), that has not been taken into account in WCSNs research. We formulate the problem, and then propose a Modified Maximum Flow Algorithm (MMFA) consisting of three stages: constructing the flow-network, finding the maximum flow and refining the solution to solve this problem. Experimental results on extensive instances show that the proposed methodology is suitable for the studied problem and more efficient than existing algorithms.
无线摄像传感器网络(WCSNs)中的屏障覆盖技术在运动检测和监视方面具有巨大的应用潜力,因此受到了研究界的广泛关注。由于电池资源有限,提高能量效率是延长屏障覆盖寿命的关键驱动因素之一。然而,以往对该问题的研究大多只针对具有均匀传感器和全向传感覆盖的网络。因此,本文研究了在异构情况下(MLBC-HWCSN)最大化网络生存期以保证强屏障覆盖的问题,这是wcsn研究中没有考虑到的问题。在此基础上,提出了一种改进的最大流量算法(MMFA),该算法分为构建流网络、寻找最大流量和细化解三个阶段来求解该问题。大量实例的实验结果表明,该方法适用于所研究的问题,并且比现有算法效率更高。
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引用次数: 1
RECENT RESULTS ON CARDINALITY ESTIMATION AND INFORMATION THEORETIC INEQUALITIES 基数估计和信息论不等式的最新研究结果
Pub Date : 2021-01-01 DOI: 10.15625/1813-9663/37/3/16129
H. Ngo
I would like to dedicate this little exposition to Prof. Phan Dinh Dieu, one of the giants and pioneers of Mathematics in Computer Science in Vietnam. In the past 15 years or so, new and exciting connections between fundamental problems in database theory and information theory have emerged. There are several angles one can take to describe this connection. This paper takes one such angle, influenced by the author's own bias and research results. In particular, we will describe how the cardinality estimation problem -- a corner-stone problem for query optimizers -- is deeply connected to information theoretic inequalities. Furthermore, we explain how inequalities can also be used to derive a couple of classic geometric inequalities such as the Loomis-Whitney inequality. A purpose of the article is to introduce the reader to these new connections, where theory and practice meet in a wonderful way. Another objective is to point the reader to a research area with many new open questions.
我想把这个小小的演讲献给Phan Dinh Dieu教授,他是越南计算机科学数学领域的巨人和先驱之一。在过去15年左右的时间里,数据库理论和信息论的基本问题之间出现了新的令人兴奋的联系。我们可以从几个角度来描述这种联系。受自身偏见和研究结果的影响,本文选取了一个这样的角度。特别是,我们将描述基数估计问题(查询优化器的基石问题)如何与信息理论不等式密切相关。此外,我们还解释了如何使用不等式来推导一些经典的几何不等式,如卢米斯-惠特尼不等式。这篇文章的目的之一是向读者介绍这些新的联系,理论和实践以一种奇妙的方式相遇。另一个目标是向读者指出一个有许多新的开放问题的研究领域。
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引用次数: 0
DEEP LEARNING FOR SEMANTIC MATCHING: A SURVEY 语义匹配的深度学习:综述
Pub Date : 2021-01-01 DOI: 10.15625/1813-9663/37/4/16151
Han Li, Yash Govind, Sidharth Mudgal, Theodoros Rekatsinas, A. Doan
Semantic matching finds certain types of semantic relationships among schema/data constructs. Examples include entity matching, entity linking, coreference resolution, schema/ontology matching, semantic text similarity, textual entailment, question answering, tagging, etc. Semantic matching has received much attention in the database, AI, KDD, Web, and Semantic Web communities. Recently, many works have also applied deep learning (DL) to semantic matching. In this paper we survey this fast growing topic. We define the semantic matching problem, categorize its variations into a taxonomy, and describe important applications. We describe DL solutions for important variations of semantic matching. Finally, we discuss future R&D directions.
语义匹配查找模式/数据结构之间的某些类型的语义关系。例子包括实体匹配、实体链接、共引用解析、模式/本体匹配、语义文本相似度、文本蕴涵、问答、标记等。语义匹配在数据库、AI、KDD、Web和语义Web社区中受到了广泛的关注。近年来,许多研究也将深度学习应用于语义匹配。本文对这一快速发展的课题进行了综述。我们定义了语义匹配问题,将其变体分类到一个分类法中,并描述了重要的应用。我们描述了语义匹配的重要变化的深度学习解决方案。最后,讨论了未来的研发方向。
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引用次数: 2
A CLOSED-FORM SOLUTION FOR A QUEUEING MODEL OF ENERGY EFFICIENT ETHERNET LINKS 节能以太网链路排队模型的封闭解
Pub Date : 2021-01-01 DOI: 10.15625/1813-9663/37/4/16126
Đỗ Văn Tiến, C. Rotter
To save energy consumption of Ethernet switches, IEEE has standardized a new energy-efficient operation for Ethernet links with a low-power state and transition mechanisms between the high-power state for transporting traffic and the low-power state.In this paper, we propose a queueing model with the Markov Modulated Compound Poisson Process that is able to characterize backbone packet traffic. We derive a closed-form solution for the stationary distribution of the proposed queueing model. We show that our model can capture an entire system where the transition times are constant.
为了节约以太网交换机的能耗,IEEE规范了一种新的低功耗以太网链路的节能运行方式,以及用于传输业务的高功率状态和低功耗状态之间的转换机制。在本文中,我们提出了一个具有马尔可夫调制复合泊松过程的队列模型,该模型能够表征骨干分组流量。对于所提出的排队模型的平稳分布,我们得到了一个封闭的解。我们表明,我们的模型可以捕获整个系统,其中转换时间是恒定的。
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引用次数: 0
A UNIFIED APPROACH TO EXPONENTIAL STABILITY ANALYSIS FOR A GENERAL CLASS OF SWITCHED TIME-DELAY LINEAR SYSTEMS 一类切换时滞线性系统指数稳定性分析的统一方法
Pub Date : 2021-01-01 DOI: 10.15625/1813-9663/37/3/16063
Nguyen Khoa Son, N. Le
This paper proposes a unified approach to study global  exponential stability for  a class of switched time-delay linear  systems described by general linear functional differential equations. Several new delay-dependent criteria of exponential stability are established for this class of systems, under arbitrary switching which satisfies some assumptions on the minimum dwell time or the average dwell time. As particular cases, the obtained results are shown to include and improve many previously known results. An example is given to illustrate the proposed method.
本文提出了研究一类由一般线性泛函微分方程描述的切换时滞线性系统全局指数稳定性的统一方法。针对这类系统在任意切换条件下,满足最小停留时间或平均停留时间的一些假设,建立了指数稳定性的几个新的时滞相关判据。作为特殊情况,所获得的结果包括并改进了许多以前已知的结果。最后给出了一个实例来说明所提出的方法。
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引用次数: 0
THE ROLE OF ANNOTATED LOGICS IN AI: A REVIEW PAPER 注释逻辑在人工智能中的作用:综述论文
Pub Date : 2021-01-01 DOI: 10.15625/1813-9663/37/3/15955
J. Abe, K. Nakamatsu, A. Aharari, J. Filho
Annotated Logics are a category of non-classical logics that have recently appeared from a historical point of view. They are a type of paraconsistent, paracomplete and non-alethic logic. With the rapid development of AI and Automation and Robotics, more and more theory and techniques were coined to support the various issues that the themes were presenting. This expository work explores how to deal directly with conflicts (contradictions) and paracompleteness directly, without extra-logical devices. Support is given by the paraconsistent annotated evidential logic Et. Some applications are discussed.
从历史的角度来看,注释逻辑是最近出现的非经典逻辑的一类。它们是一种副一致、副完全和非真性逻辑。随着人工智能、自动化和机器人技术的快速发展,越来越多的理论和技术被创造出来,以支持主题所呈现的各种问题。这部说明性的作品探讨了如何直接处理冲突(矛盾)和半完整,而不使用额外的逻辑手段。给出了准一致标注证据逻辑Et的支持,并讨论了一些应用。
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引用次数: 0
ON A STOCHASTIC LINEAR DYNAMICAL SYSTEM DRIVEN BY A VOLTERRA PROCESS volterra过程驱动的随机线性动力系统
Pub Date : 2021-01-01 DOI: 10.15625/1813-9663/37/2/15340
T. Tran
The aim of this note is considering a dynamical system expressed by a Langevin equation driven by a Volterra process. An Ornstein - Uhlenbeck process as the solution of this kind of equation is described and a problem of state estimation (filtering) for this dynamical system is investigated as well.
本文的目的是考虑一个由Volterra过程驱动的朗之万方程表示的动力系统。描述了Ornstein - Uhlenbeck过程作为这类方程的解,并研究了这类动力系统的状态估计(滤波)问题。
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引用次数: 0
期刊
Journal of Computer Science and Cybernetics
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