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

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An Ensemble Filter Feature Selection Method and Outlier Detection Method for Multiclass Classification 多类分类的集成滤波特征选择方法和离群点检测方法
Dalton Ndirangu, W. Mwangi, L. Nderu
Feature selection methods facilitate removal of irrelevant attributes. Ineffective features may contain outliers that degrade performance of classifiers. We propose an ensemble filter base feature selection technique for multiclass classification. The technique combines results of four selection methods to create an ensemble list. The study uses a red wine dataset drawn from UC Irvine machine learning data repository and WEKA, a collection of machine learning algorithms for data mining tasks. The multiclass red wine dataset is binarized using WekaMulticlassClassifier utilizing the 1against 1 with pairwise coupling decomposing scheme. Using random forest algorithm and root mean square error values, a learning curve is generated that establishes an optimal ensemble sub-list. Outliers are detected using the Tukey statistical method. The proposed ensemble method outperformed the single feature methods. The study concludes by showing that unnecessary features and presence of outliers degrades classifiers performance. We recommend further studies on the effect of gradual selective removal of outliers on classification.
特征选择方法有助于去除不相关的属性。无效的特征可能包含会降低分类器性能的异常值。提出了一种基于集成滤波器的多类分类特征选择技术。该技术结合了四种选择方法的结果来创建一个集合列表。该研究使用了来自加州大学欧文分校机器学习数据存储库和WEKA的红酒数据集,WEKA是用于数据挖掘任务的机器学习算法集合。使用WekaMulticlassClassifier对多类红酒数据进行二值化,采用1对1的两两耦合分解方案。利用随机森林算法和均方根误差值生成学习曲线,建立最优集成子列表。使用Tukey统计方法检测异常值。所提出的集成方法优于单一特征方法。研究结果表明,不必要的特征和异常值的存在会降低分类器的性能。我们建议进一步研究逐渐选择性去除异常值对分类的影响。
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引用次数: 2
Multi-Attention Network for Aspect Sentiment Analysis 面向方面情感分析的多注意网络
Huiyu Han, Xiaoge Li, Shuting Zhi, Haoyue Wang
Aspect sentiment analysis is a fine-gained task in sentiment analysis. In this paper, we propose a novel LSTM network model, which combines multi-attention and aspect contexts, i.e. LSTM-MATT-AC. Multi-attention mechanism that integrates the factors of location, content and class could adaptively capture important information in the contexts with the supervision of aspect targets. In other words, the model is more robust against irrelevant information. Simultaneously, aspect context mechanism extends differentiate left and right contexts given aspect targets and strengthens the expressive power of the model for handling more complication by mining deeper semantic information. Experiment results on SemEval2014 Task4 and Twitter datasets show that the accuracy of sentiment classification reaches 80.6%, 75.1% and 71.1% respectively. Compared to previous neural network-based sentiment analysis models, the accuracy has been further improved.
方面情感分析是情感分析中的一项精细任务。本文提出了一种结合多注意和方面上下文的LSTM网络模型,即LSTM- matt - ac。多注意机制融合了地点、内容和类别等因素,能够在方面目标的监督下自适应地捕捉情境中的重要信息。换句话说,模型对不相关信息的鲁棒性更强。同时,方面上下文机制扩展了在给定方面目标的情况下区分左右上下文的能力,并通过挖掘更深层次的语义信息增强了模型的表达能力,以处理更复杂的问题。在SemEval2014 Task4和Twitter数据集上的实验结果表明,情感分类的准确率分别达到80.6%、75.1%和71.1%。与以往基于神经网络的情感分析模型相比,精度得到了进一步提高。
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引用次数: 8
Towards Efficient Implementation of Realizability Checking for Reactive System Specifications 面向响应式系统规范可实现性检验的有效实现
Masaya Shimakawa, Atsushi Ueno, Shohei Mochizuki, Takashi Tomita, Shigeki Hagihara, N. Yonezaki
Realizability checking is used to detect flaws in reactive system specifications that are difficult for humans to find. However, these checks are computationally costly. To address this problem, researchers have studied efficient methods for implementing such checking procedures. In this paper, we propose a new implementation method of realizability checking. While symbolic approaches have been adopted in many previous methods, we take a partially symbolic approach, in which binary decision diagrams (BDDs) are used partially. We developed a prototype realizability checker based on our method, and experimentally compared it to tools based on other implementation methods. Our prototype was efficient in comparison to the other tools.
可实现性检查用于检测反应性系统规范中人类难以发现的缺陷。然而,这些检查在计算上是昂贵的。为了解决这个问题,研究人员研究了实施这种检查程序的有效方法。本文提出了一种新的可实现性检验的实现方法。虽然许多以前的方法都采用了符号方法,但我们采用了部分符号方法,其中部分使用了二进制决策图(bdd)。在此基础上开发了一个原型可实现性检查器,并与基于其他实现方法的工具进行了实验比较。与其他工具相比,我们的原型是高效的。
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引用次数: 1
Privacy Enhancement for Delivery Route Optimization through Occupancy Prediction 利用占用率预测优化配送路线的隐私增强
Shimpei Ohsugi, Kenji Tanaka, N. Koshizuka
Delivery route optimization for logistic industry is one of applications proposed on smart meter infrastructure. It's expected to drastically reduce absent-delivery which amounts to 20% of total delivery in Japan, which estimated to save $billions a year. But as previous works pointed out, the concern on user privacy is the biggest hurdle yet to be addressed. In this research, we proposed a new approach to improve user privacy by converting electricity data into route data and optimize it before providing to service provider. Then, we tested pragmatic privacy improvement and route optimization through actual delivery experiment. Results showed that the information leakage rate (# of absence detection per delivery) decreased from 23% to 4% by this system and decreased to 2% with additional operational change. Also, the experiment validated decrease of absent-delivery rate from 23% to 2% and travel distance by 5% while improving privacy. Applying adequate method to "delivery optimization through occupancy prediction" enabled achieving both user privacy and absent-delivery reduction significantly.
物流配送路线优化是智能电表基础设施的应用领域之一。预计这将大大减少缺货,缺货率占日本总快递量的20%,预计每年可节省数十亿美元。但正如之前的研究指出的那样,对用户隐私的担忧是迄今为止需要解决的最大障碍。在本研究中,我们提出了一种将电力数据转换为路线数据并在提供给服务提供商之前进行优化的新方法来提高用户隐私。然后,我们通过实际交付实验,测试了实用的隐私改进和路径优化。结果表明,该系统的信息泄漏率(每次交付的缺勤检测#)从23%下降到4%,在额外的操作更改后下降到2%。实验还验证了缺勤率从23%下降到2%,出行距离减少了5%,同时提高了隐私性。采用适当的方法“通过入住率预测来优化交付”,可以显著减少用户隐私和缺勤交付。
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引用次数: 1
Adoption Issues in DevOps from the Perspective of Continuous Delivery Pipeline 从持续交付管道的角度看DevOps的采用问题
M. Toh, S. Sahibuddin, M. N. Mahrin
DevOps and Continuous Delivery (CD) are the terms that are always related to each other in Software Delivery and Operation Process area. DevOps introduces a significant agile perspective to deliver the software product in short cycle time that will reduce technical debt that is caused by delay. Continuous Delivery is one of the DevOps' practices that enables software organization to release new features and new products rapidly. However, the correct practices are still in ambiguity to the current CD process. This paper investigates the advantages and limitation of DevOps adoption to improve the CD process. A qualitative web survey has been conducted to identify the DevOps and Continuous Delivery advantages and adoption problems. 13 respondents' feedbacks have been collected and analyzed. Based on the survey, there are four significant DevOps' practices that need to be considered and developed as a proper guideline to introduce to practitioners.
在软件交付和操作过程领域中,DevOps和持续交付(CD)是两个总是相互关联的术语。DevOps引入了一个重要的敏捷视角,在较短的周期内交付软件产品,这将减少由延迟引起的技术债务。持续交付是DevOps的实践之一,它使软件组织能够快速发布新功能和新产品。然而,对于当前的CD过程来说,正确的实践仍然是模糊的。本文研究了采用DevOps来改进CD过程的优点和局限性。一个定性的网络调查已经进行,以确定DevOps和持续交付的优势和采用问题。收集并分析了13个受访者的反馈。根据调查,有四个重要的DevOps实践需要考虑和开发,作为向从业者介绍的适当指南。
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引用次数: 19
A User Attribute Recommendation Algorithm and Peer3D Technology based WebVR P2P Transmission Scheme 基于用户属性推荐算法和Peer3D技术的WebVR P2P传输方案
Huijuan Zhang, Lei Qiao, Dongqing Wang
At present, the WebVR technology based on mobile Internet is becoming more and more mature, but there is relatively little research on P2P transmission of WebVR scene data between mobile web pages. For the past WebTorrent scheme, the concept of interest domain and avatar behavior grouping is not considered, but only pure P2P transmission problem is considered. On the one hand, a more scalable WebVR peer-to-peer transmission platform is implemented based on PeerJS, on the other hand, considering the behavioral characteristics of WebVR avatars, a WebVR interest domain partitioning method based on user attribute recommendation algorithm is proposed. Experimental results show that the proposed scheme has good results for WebVR peer-to-peer transmission.
目前,基于移动互联网的WebVR技术日趋成熟,但关于WebVR场景数据在移动网页间P2P传输的研究相对较少。以往的WebTorrent方案没有考虑兴趣域和头像行为分组的概念,只考虑纯P2P传输问题。一方面,基于PeerJS实现了更具可扩展性的WebVR点对点传输平台,另一方面,考虑到WebVR虚拟人物的行为特征,提出了一种基于用户属性推荐算法的WebVR兴趣域划分方法。实验结果表明,该方案在WebVR点对点传输中取得了良好的效果。
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引用次数: 0
Reinforcing the Decision-making Process in Chemometrics: Feature Selection and Algorithm Optimization 强化化学计量学中的决策过程:特征选择与算法优化
Samer Muthana Sarsam
With the development of society, applying data mining schemes in the chemometrics discipline is increasing rapidly which makes this field very popular. However, machine learning algorithms face challenges in selecting best algorithm's parameters as well as selecting the features of the data that affect the decision-making process. Limited studies have in-depth explored ways of enhancing decision support systems in the chemometrics domain. Therefore, this study aims at reinforcing the decision-making process through proposing a robust approach: "feature selection" and "algorithm optimization" in conjunction with "cross-validation". Precisely, stratified tenfold cross-validation method was utilized to evaluate the parameter selection of both Multilayer perceptron and Partial least-squares regression algorithms, from the one hand, and to select the best prediction features, from the other hand. Results exhibited that Multilayer perceptron model overperformed partial least-squares regression model. This confirms that Multilayer perceptron can be efficiently used in the chemometrics discipline. Our result also listed the selected feature for the utilized data. Consequently, current study opens the door for enhancing the industry, generally, and the chemometrics-related manufacturing, especially. It also sheds some light on the significance of adopting cross-validation for model selection and parameter optimization in the chemometrics domain for improving the quality of the decision-making process.
随着社会的发展,数据挖掘方案在化学计量学领域的应用越来越多,这使得该领域非常受欢迎。然而,机器学习算法在选择最佳算法参数以及选择影响决策过程的数据特征方面面临挑战。有限的研究深入探索了化学计量学领域中增强决策支持系统的方法。因此,本研究旨在通过提出一种鲁棒的方法来强化决策过程:“特征选择”和“算法优化”结合“交叉验证”。采用分层十倍交叉验证方法,一方面对多层感知器和偏最小二乘回归算法的参数选择进行评估,另一方面选择最佳预测特征。结果表明,多层感知器模型优于偏最小二乘回归模型。这证实了多层感知器可以有效地应用于化学计量学领域。我们的结果还列出了所使用数据的选定特性。因此,目前的研究打开了提升工业的大门,一般来说,特别是与化学计量学相关的制造业。同时也说明了在化学计量学领域中采用交叉验证进行模型选择和参数优化对提高决策质量的重要意义。
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引用次数: 10
DC programming and DCA for Secure Guarantee with Null Space Beamforming in Two-Way Relay Networks 双向中继网络中零空间波束形成安全保障的DC编程和DCA
N. T. Duy, Tran Thi Thuy, Luong Thuy Chung, Ngo Tung Son, Tran Van Dinh
In this paper, we consider a two-way relay network system which contains multiple cooperative relays transmitting information between two sources with attendance of an eavesdropper. A null space beamforming scheme is applied to ensure the secrecy in system. Our goal is achieving maximal secrecy sum rate with a certain level power transmit. In [1], authors propose an approach to solve Secrecy Sum Rate Maximization (SSRM) problem, whereas we use another approach based on Different of Convex Functions Algorithm (DCA).
在本文中,我们考虑了一个双向中继网络系统,该系统包含多个协作中继,在一个窃听者的参与下在两个信源之间传输信息。为了保证系统的保密性,采用了零空间波束形成方案。我们的目标是在一定的功率传输水平下实现最大的保密和速率。在[1]中,作者提出了一种解决保密和速率最大化(SSRM)问题的方法,而我们使用了另一种基于不同凸函数算法(DCA)的方法。
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引用次数: 1
Research on Domain Ontology Automation Construction Based on Chinese Texts 基于中文文本的领域本体自动化构建研究
Bo Wang, Junwei Luo, Shuyuan Zhu
The main construction method of the current ontology is to rely on ontology experts for manual construction. Because manual construction requires a lot of manual participation, manual construction has great limitations. Text data as one of the main forms of data source, how to construct domain ontology automatically from texts and how to provide semantic retrieval support to text quickly by ontology is the hotspot of ontology research at present. Aiming at the above problems, an automatic construction method of domain ontology based on knowledge graph and association rule mining is presented, and it can extract the concepts, hierarchies and non-hierarchies of domain ontology from text, and finally form ontology by Jena. It also provides semantic retrieval of text by associating text and concepts in the process of ontology construction. Finally, the effect of automatic ontology construction is verified by the effect of text retrieval.
目前本体的主要构建方法是依靠本体专家进行人工构建。由于手工施工需要大量的人工参与,手工施工有很大的局限性。文本数据作为数据源的主要形式之一,如何从文本中自动构建领域本体,并通过本体快速为文本提供语义检索支持是当前本体研究的热点。针对上述问题,提出了一种基于知识图和关联规则挖掘的领域本体自动构建方法,该方法可以从文本中提取领域本体的概念、层次和非层次,最后通过Jena生成本体。在本体构建过程中,通过文本与概念的关联,提供文本的语义检索。最后,通过文本检索的效果验证了本体自动构建的效果。
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引用次数: 3
Verifying Cloud Application for the Interaction Correctness Using SoaML and SPIN 使用SoaML和SPIN验证云应用程序的交互正确性
Chunling Hu, Guoqing Geng, Bixin Li, Chao Tang, Xiaofeng Wang
Cloud application is a kind of software implemented using cloud computing technology and deployed in the cloud environment. This paper focuses on guaranteeing the interaction correctness between cloud application and users. In general, the main methods to do this are testing and verification. But in the cloud environment, testing is costly and the operation is extremely difficult, while the verification can avoid these shortcomings, and be suitable for cloud application. In this paper, we use SoaML(Service-Oriented Architecture Modeling Language) to model cloud application, apply hierarchical automaton to formalize ServiceInterface of SoaML, and translate SeviceInterface into PROMELA according to the semantics of automaton; Meanwhile, describe the ServiceContract of SoaML using linear temporal logic (LTL). Both PROMELA and LTL formula are integrated into SPIN model checker for automatic verification of cloud application. Experiment shows that we can verify the correctness of cloud application effectively.
云应用是一种利用云计算技术实现并部署在云环境中的软件。本文主要研究如何保证云应用与用户交互的正确性。一般来说,实现这一点的主要方法是测试和验证。但在云环境下,测试成本高,操作难度大,而验证可以避免这些缺点,适合云应用。本文采用面向服务的体系结构建模语言SoaML(Service-Oriented Architecture Modeling Language)对云应用进行建模,采用层次自动机对SoaML的ServiceInterface进行形式化,并根据自动机的语义将ServiceInterface转换为PROMELA;同时,使用线性时间逻辑(LTL)描述SoaML的serviceconcontract。将PROMELA和LTL公式集成到SPIN模型检查器中,用于云应用程序的自动验证。实验表明,我们可以有效地验证云应用的正确性。
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引用次数: 2
期刊
Proceedings of the 2019 8th International Conference on Software and Computer Applications
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