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Proceedings of the 2019 8th International Conference on Software and Computer Applications最新文献

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DC Programming and DCA for Power Minimization Problem in Multi-User Beamforming Networks 多用户波束形成网络中功率最小化问题的DC规划与DCA
Tran Thi Thuy, Nguyen Van Nam, Ngo Tung Son, Tran Van Dinh
The beamforming technique is increasingly used in multi-user relay networks for directional signal transmission. The main purpose of this paper is to design beamforming coefficients to minimize the total relay transmitted power under destination Quality-of-Service (QoS) constraints. There are some techniques have been proposed previously to solve the class of these problems such as: semidefinite relaxation approach (SDR) and convex second-order cone programing form (SOCP). We propose another method named Difference of Convex functions Algorithm (DCA) and evaluate the performance of this approach.
波束形成技术越来越多地应用于多用户中继网络中进行定向信号传输。本文的主要目的是设计波束形成系数,使目标服务质量(QoS)约束下中继总传输功率最小。为了解决这类问题,以前已经提出了一些技术,如半定松弛法和凸二阶锥规划形式。我们提出了另一种称为凸函数差分算法(DCA)的方法,并对该方法的性能进行了评价。
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引用次数: 1
IPv6 QoS for Multimedia Applications: A Performance Analysis 多媒体应用的IPv6 QoS:性能分析
Farooq Haider, M. H. Chaudary, M. S. Naveed, M. Asif
Since the last decade, we have seen a swift formation of real-time applications on the web and numerous exploration regarding Quality of Service (QoS) [1] in mainly IPv4 (Internet Protocol version 4). In IPv4 the address pool has to turn out to be exhausted gradually. As the current development of Internet Protocol (IP) goes on, the placement of IPv6 QoS is proceeding. In IPv4 QoS solutions, DiffServ is the finest method to meet QoS needs for real-time applications. The aim of this research project is to assess the IPv4/IPv6 QoS performance for real-time multimedia applications like streaming of videos which drives over DiffServ in IPv4/IPv6 networks. In this paper, we also studied the Assured Forwarding (AF), Expedited Forwarding (EF), Traffic aggregation and the outcome of multiple performance parameters such as throughput packet loss, end-to-end delay, and variation in delay. Using different tools and techniques, we measured and analyzed DiffServ integration in IPv4/IPv6 network the research project shows that, IPV6 abilities against IPV4 and give confidence to ISP's to deploy IPv6 to provide their customer quality of services support.
自过去十年以来,我们已经看到了网络上实时应用的迅速形成和关于服务质量(QoS)的大量探索[1],主要是IPv4(互联网协议版本4)。在IPv4中,地址池不得不逐渐耗尽。随着当前互联网协议(IP)的发展,IPv6 QoS的部署也在进行中。在IPv4 QoS解决方案中,DiffServ是满足实时应用对QoS需求的最佳方法。本研究项目的目的是评估实时多媒体应用(如在IPv4/IPv6网络中通过DiffServ驱动的视频流)的IPv4/IPv6 QoS性能。在本文中,我们还研究了保证转发(AF)、加速转发(EF)、流量聚合以及吞吐量丢包、端到端延迟和延迟变化等多个性能参数的结果。使用不同的工具和技术,我们测量和分析了DiffServ在IPv4/IPv6网络中的集成,研究项目表明,IPv6相对于IPv4的能力,并给ISP部署IPv6提供客户服务质量支持的信心。
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引用次数: 5
Automating Business Process Model Generation from Ontology-based Requirements 从基于本体的需求中自动生成业务流程模型
Amarilis Putri Yanuarifiani, Fang-Fang Chua, Gaik-Yee Chan
Requirements elicitation process faces major challenges about how stakeholders can easily verify requirements. Requirements document allows developers to visualize requirements using modeling language to ensure stakeholders have the same perspective as them. It is also effective to give presentations to stakeholders about how business processes will be carried out after the requirements are implemented. Issues are raised in building requirements modeling as business users generally do not have enough knowledge to build requirements models in specific notations. Transforming requirements (natural language) into semi-formal notation (BPMN) manually lead to inconsistency of elements structure. The need to automatically generate requirements model become crucial because it will be the basis for the programming process. Existing studies are mostly concerned on auto-completion of modeling language using domain ontology as basic knowledge, and let the stakeholders building initial requirements model with limited knowledge. The idea of this paper is to propose a methodology for building business process model in semi-formal language (BPMN) to represent future business processes using ontology approach. This research continues from previous study which transform requirements list into requirements ontology to formalize the elements such as problem, actor and process. By using requirements ontology as input, rule-based mapping method is proposed to map ontology instances to BPMN elements.
需求引出过程面临的主要挑战是涉众如何容易地验证需求。需求文档允许开发人员使用建模语言可视化需求,以确保涉众拥有与他们相同的视角。向涉众介绍在需求实现后如何执行业务流程也是有效的。由于业务用户通常没有足够的知识来用特定的符号构建需求模型,因此在构建需求建模时就会出现问题。将需求(自然语言)手工转换为半形式化符号(BPMN)会导致元素结构的不一致。自动生成需求模型的需求变得至关重要,因为它将是编程过程的基础。现有的研究多关注以领域本体为基础知识的建模语言自动完成,让利益相关者利用有限的知识构建初始需求模型。本文的思想是提出一种用半形式语言(BPMN)构建业务流程模型的方法,以使用本体方法表示未来的业务流程。本研究延续了前人的研究,将需求列表转化为需求本体,将问题、参与者、过程等要素形式化。以需求本体为输入,提出了将本体实例映射到BPMN元素的基于规则的映射方法。
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引用次数: 6
Data Mining Using Clustering Algorithm as Tool for Poverty Analysis 基于聚类算法的贫困分析数据挖掘
J. A. Talingdan
Poverty in one place can be reduced or minimized if proper poverty alleviation programs are given to the community. In this study different clustering algorithms were evaluated using silhouette index to get the best clustering algorithm to group the households and analyze the poverty data. The k-means algorithm where k=3 outperformed DBSCAN and k-medoids with a silhouette of 0.308. The algorithm produced three groups or clusters and labelled as non-poor, near poor and poor. The result can help policy-makers formulate and implement poverty reduction policies and programs that are clear, reasonable, realistic, and enforceable.
一个地方的贫困可以减少或最小化,如果适当的扶贫项目给予社区。本研究利用剪影指数对不同的聚类算法进行了评价,以获得最佳的聚类算法来对家庭进行分组并分析贫困数据。k=3的k-means算法优于DBSCAN和k-medoids,剪影为0.308。该算法产生了三组或聚类,分别被标记为非贫穷、接近贫穷和贫穷。研究结果可以帮助决策者制定和实施明确、合理、现实和可执行的减贫政策和项目。
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引用次数: 3
The Extraction of Hidden Fault Diagnostic Knowledge in Equipment Technology Manual Based on Semantic Annotation 基于语义标注的设备技术手册隐性故障诊断知识提取
Zhen Wang, Yanling Qian, Long Wang, Shigang Zhang, Xu Luo
Due to small quantities, lack of service experience, and poor fault diagnosis knowledge of new-type equipment, it is often difficult to determine the exact location of a trouble. To address this problem, a knowledge capitalization and fault diagnosis method based on semantic annotation was proposed, which can extract deep fault knowledge implied in the technical publications. Firstly, the unstructured nature of deep fault knowledge in the technical publications is outlined. And the role of semantic annotation in the process of knowledge acquisition is highlighted. Secondly, an ontology model for deep fault diagnosis knowledge extraction is developed to annotate the technical publications semantically. And the annotation method is presented to translate the unstructured and implicit knowledge into formal-defined and computer readable semantic net. Then, a fault diagnostic algorithm is proposed to use the annotation results based on hierarchical diagnosis algorithm of directed graph. Finally, an application case of VE-type fuel-injection pump verifies the feasibility and effectiveness of this method.
由于新型设备的数量少,缺乏服务经验,故障诊断知识贫乏,往往难以确定故障的确切位置。针对这一问题,提出了一种基于语义标注的知识资本化和故障诊断方法,该方法可以提取技术出版物中隐含的深层故障知识。首先,概述了技术出版物中深断层知识的非结构化性质。强调了语义标注在知识获取过程中的作用。其次,建立了深度故障诊断知识抽取的本体模型,对技术出版物进行语义标注。提出了将非结构化、隐式知识转化为形式化、计算机可读的语义网络的标注方法。在此基础上,提出了一种基于有向图分层诊断算法的故障诊断算法。最后,以ve型喷油泵为例,验证了该方法的可行性和有效性。
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引用次数: 3
A Genre-Based Item-Item Collaborative Filtering: Facing the Cold-Start Problem 基于类型的项目-项目协同过滤:面对冷启动问题
Surajit Das Barman, M. Hasan, Falguni Roy
Recommender System is a technique which is used to recommend an item or product to a user based on the user's preference'. Collaborative filtering is an approach that is vastly used in recommender systems. Item-item-based collaborative filtering is a collaborative filtering recommender system technique where the user got the recommendation based on the similarity among the item ratings. Here, we present an approach where we calculate the similarity among the items based on the genre of items. Any item may belong to more than one genre or category. Based on items propensity to a specific genre or category we propose a new item-item-based similarity metric and a little improvement in prediction method that can efficiently compute the ratings and provide more accurate recommendation compare to the state-of-art works. Our model addresses the problem of the cold start since traditional similarity model takes the user ratings into account whereas our model can calculate the similarity based on item genre or category among them. We also show the extensive simulation results based on sparsity and other recommender system evaluation techniques. We also distinguish that our result outperforms than the traditional collaborative filtering recommender systems.
推荐系统是一种根据用户的偏好向用户推荐商品或产品的技术。协同过滤是一种在推荐系统中广泛使用的方法。基于物品的协同过滤是一种协同过滤推荐系统技术,用户根据物品评分之间的相似度获得推荐。在这里,我们提出了一种方法,我们根据项目的类型计算项目之间的相似性。任何项目都可以属于多个类型或类别。基于物品对特定类型或类别的倾向,我们提出了一种新的基于物品的相似度度量,并对预测方法进行了一些改进,该方法可以有效地计算评分并提供比最新作品更准确的推荐。我们的模型解决了冷启动的问题,因为传统的相似度模型考虑了用户评分,而我们的模型可以根据其中的项目类型或类别来计算相似度。我们还展示了基于稀疏性和其他推荐系统评估技术的广泛模拟结果。我们还发现,我们的结果优于传统的协同过滤推荐系统。
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引用次数: 12
Social Media Application Usage and Women Entrepreneurship Achievement through E-Business Model: Case of Setiu Wetland 社交媒体应用与电子商务模式下的女性创业成就——以塞提湿地为例
Masita Masila Bt Abd Jalil, Fatihah Mohd, M. Man, N. Ali, S. Muhamad
Over the decades, Information and Communication Technology (ICT) has become a new trend in the business environment and widely spread in no time at all. Considering all the benefits of ICT, the study utilizes Facebook social media as the electronic business (e-business) and networking platform in marketing the local products of Setiu Wetland women entrepreneurs into wider customer base. This paper presents a case study of rural women entrepreneur in Setiu Wetland, Terengganu, Malaysia from the period of March 2017 until February 2018. To help improve the livelihood through e-business, women entrepreneurs needs to be equipped with entrepreneurship skill explicitly and Information and Communication (ICT) skill implicitly. Through the twelve months' period of tracking the respondent's income, the outcome of this project depicts a 100% achievement with linear proportion of increasing income rate.
几十年来,信息通信技术(ICT)已成为商业环境中的一种新趋势,并在短时间内得到广泛传播。考虑到信息和通信技术的所有好处,该研究利用Facebook社交媒体作为电子商务和网络平台,向Setiu湿地女企业家的本地产品进行营销,以获得更广泛的客户群。本文介绍了2017年3月至2018年2月期间马来西亚登嘉楼塞提乌湿地农村女企业家的案例研究。为了通过电子商务帮助改善生计,女性企业家需要明确掌握创业技能,并隐性掌握信息和通信(ICT)技能。通过对被调查者收入的12个月的跟踪,这个项目的结果描述了一个100%的成就,与收入增长率成线性比例。
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引用次数: 0
(In)Security of the AAβ Cryptosystem for Transmitting Large Data (二)大数据传输中aaaa密码系统的安全性
Muhammad Asyraf Asbullah, M. Ariffin, Z. Mahad, Muhamad Azlan Daud
The AAβ cryptosystem is a well-designed encryption scheme for securing a message (or plaintext) which could transmit large dataset than its key size. Nevertheless, the idea to transmit data larger than the specified condition is not a good idea. This work will explain why it is the case. As a result, we show that some most significant bit of the data can be recovered. In spite the very fact that the complete parameter cannot be recovered fully, anyway by leaks of its most significant bits, even of a very little amount could lead any cryptosystem insecure.
aaaa密码系统是一种设计良好的加密方案,用于保护可能传输比其密钥大小大的数据集的消息(或明文)。然而,传输大于指定条件的数据并不是一个好主意。这项工作将解释为什么会这样。因此,我们证明了一些最重要的数据位是可以恢复的。尽管完整的参数不可能完全恢复,无论如何,通过泄漏其最重要的位,即使是非常少的量也可能导致任何密码系统不安全。
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引用次数: 2
Meta-Analysis of Acoustic Feature Extraction for Machine Listening Systems 机器听力系统声学特征提取的元分析
Ricardo A. Catanghal, T. Palaoag, C. Dayagdag
Generally, the concentration of the study and research in the understanding of sounds revolves around the speech and music area, on the contrary, there are few in environmental and non-speech recognition. This paper carries out a meta-analysis of the acoustic transformation and feature set extraction of the environmental sound raw signal form into a parametric type representation in handling analysis, perception, and labeling for audio analysis of sound identification systems. We evaluated and analyzed the various contemporary methods and feature algorithms surveyed for the acoustic identification and perception of surrounding sounds, the Gammatone spectral coefficients (GSTC) and Mel Filterbank (FBEs) then the acoustic signal classification the Convolutional Neural Network (ConvNet) was applied. The outcome demonstrates that GSTC accomplished better as a feature in contrast to FBEs, but FBEs tend to improve performance when merge or incorporated with other feature. The analysis demonstrates that merging or incorporating with other features set is encouraging in achieving a much better accuracy in contrast to a single feature in classifying environmental sounds that is useful in the advancement of the intelligent machine listening frameworks.
一般来说,对声音理解的研究集中在语音和音乐领域,而对环境和非语音识别的研究却很少。本文对环境声音原始信号形式的声学变换和特征集提取进行了元分析,将其转化为参数型表示,用于处理声音识别系统的音频分析、感知和标记。本文对现有的各种声学识别和感知方法和特征算法进行了评价和分析,并结合伽玛酮谱系数(GSTC)和梅尔滤波组(FBEs)对声学信号进行了分类,采用卷积神经网络(ConvNet)对声学信号进行分类。结果表明,与fbe相比,GSTC作为一个特性完成得更好,但是当与其他特性合并或合并时,fbe倾向于提高性能。分析表明,在对环境声音进行分类时,与单一特征相比,合并或合并其他特征集在实现更高的准确性方面是令人鼓舞的,这对智能机器听力框架的进步很有用。
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引用次数: 0
ML Polymorphism of Linear Lambda Calculus with First-class Continuations 一类延拓线性λ演算的ML多态性
S. Nishizaki
The Curry-Howard isomorphism shows that an intuitionistic deductive system is similar to a formal computational system; propositions correspond to types, proofs to lambda-terms, and a proof normalization procedure to an evaluation strategy. Furthermore, the duality between computation values and continuations is discovered under the Curry-Howard isomorphism. In the traditional lambda calculus, duplication and erasing of values are allowed but those of continuations prohibited. On the other hand, in the lambda calculus with first-class continuations, both values and continuations are permitted to be duplicated and erased. In our previous paper, we proposed a linear lambda calculus with first-class continuations, in which we cannot duplicate and erase values but can do continuations. In this paper, we propose an ML polymorphic type system for the linear lambda calculus with first-class continuations and design a type inference algorithm of the type system.
Curry-Howard同构表明,一个直觉演绎系统类似于一个形式计算系统;命题对应于类型,证明对应于lambda项,证明规范化过程对应于评估策略。进一步,在Curry-Howard同构下发现了计算值与延拓之间的对偶性。在传统的lambda演算中,允许值的重复和擦除,但禁止延续的重复和擦除。另一方面,在具有一等延续的lambda演算中,值和延续都允许被复制和删除。在我们之前的论文中,我们提出了一类延续性的线性λ演算,其中我们不能复制和擦除值,但可以进行延续性。本文提出了一类延续性线性λ演算的ML多态类型系统,并设计了该类型系统的类型推断算法。
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引用次数: 0
期刊
Proceedings of the 2019 8th International Conference on Software and Computer Applications
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