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2020 International Conference on Computational Science and Computational Intelligence (CSCI)最新文献

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Proposed Design for Effectively Expand Adaptive-ticks Feature in the Linux Kernel to Full Tickless Function 一种有效扩展Linux内核自适应滴答特性为完全无滴答功能的设计方案
Abdullah Aljuhni, Shaji Yusuf, C. Edward Chow, Oluwatobi Akanbi, Amer Aljaedi
Operating systems use timers available in the processor to trigger timer interrupts that help the kernel manage several tasks, ranging from time management of system software to scheduling and task switching. Traditionally, operating systems program the system timer to tick at regular intervals ranging from 1 ms to 100 ms, depending on the required system response and type of load. The periodic tick timer is the simplest and most common way of managing the system’s management activities. However, advancements in microprocessors and operating system scheduler allows for a more efficient and better-performing solution by eliminating regular timer interrupts. In this research, we illustrate the implementation of Adaptive-ticks feature and analyze the performance of Adaptive-ticks scheduler in Linux kernel version 4.0.9. We also propose a new full Adaptive-ticks design to support multiple tasks in the ready queue. This new proposed design extends the current Adaptive-ticks feature to improve performance and power efficiency by getting rid of unwanted interrupts.
操作系统使用处理器中可用的计时器来触发计时器中断,从而帮助内核管理多个任务,从系统软件的时间管理到调度和任务切换。传统上,操作系统根据所需的系统响应和负载类型,对系统计时器进行编程,使其以1毫秒到100毫秒的定期间隔滴答。周期计时器是管理系统管理活动的最简单和最常用的方法。然而,微处理器和操作系统调度器的进步允许通过消除常规计时器中断来实现更高效、性能更好的解决方案。在本研究中,我们说明了Adaptive-ticks特性的实现,并分析了Linux内核4.0.9版本中Adaptive-ticks调度器的性能。我们还提出了一种新的全自适应刻度设计,以支持就绪队列中的多个任务。这个新提出的设计扩展了当前的Adaptive-ticks特性,通过摆脱不必要的中断来提高性能和功率效率。
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引用次数: 0
Designing a composite platform for operational efficiency 设计一个提高作业效率的复合平台
Wangjie Xu, T. Fujimoto, Ziran Fan
This paper focuses on the problem of in-house split information systems and the resulting decline in operational efficiency. According to the result of the authors' investigation for the business environment of small and medium-sized enterprises, the simplification of information and communication among employees has become an issue to be solved in many enterprises today in order to improve operational efficiency. Based on this, in this paper, we design a composite platform that integrates information tools commonly used in companies. By covering all information-related operations with one platform, we support improvement of companies’ operational efficiency. We also show the effectiveness of the proposed platform by comparing it with existing information systems. We mainly examine the design concept of the composite platform and its construction requirements.
本文主要研究内部信息系统的分裂问题以及由此导致的运营效率的下降。根据笔者对中小企业经营环境的调查结果显示,为了提高经营效率,员工之间的信息和沟通的简化已经成为当今许多企业需要解决的问题。基于此,本文设计了一个集成了企业常用信息工具的复合平台。通过一个平台覆盖所有与信息相关的业务,我们支持企业提高运营效率。我们还通过与现有信息系统的比较,证明了所提出的平台的有效性。我们主要研究了复合平台的设计理念及其施工要求。
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引用次数: 0
Performance Analysis of Tor Website Fingerprinting over Time using Tree Ensemble Models 基于树集成模型的Tor网站指纹识别性能分析
Hyoung-Jin Oh, Donghoon Kim, Won-gyum Kim, Doosung Hwang
Tor (The Onion Router) ensures network anonymity by encrypting contents through multiple relay nodes. Recent studies on website fingerprinting (WF) showed that websites can be identified with high accuracy by analyzing traffic data. However, websites are changing over time by updating contents, which can significantly reduce the accuracy of WF attacks. This study analyzes the performance over time by using ensemble models with excellent WF attack performance. The experiment are conducted in two cases with the initial model. The not updated analyzes the accuracy of models made from initial data over time, whereas the updated adds data that has changed over time to update the model to analyzes the accuracy. The average accuracy of the initial ensemble models is over 90.0% and the Rotation Forest algorithm shows high performance of 93.5%. Comparing the models trained after 30 days with the initial model, the classification performance dropped in both cases; the not updated dropped by more than 30.0% and the updated dropped by about 10.0%. The experimental results suggest that WF using machine learning may require model learning on a regular basis.
Tor (The Onion Router)通过多个中继节点对内容进行加密,保证了网络的匿名性。近年来对网站指纹技术的研究表明,通过对流量数据的分析,可以较准确地识别出网站。然而,随着时间的推移,网站会不断更新内容,这大大降低了WF攻击的准确性。本研究通过使用具有优异WF攻击性能的集成模型来分析性能随时间的变化。用初始模型进行了两种情况下的实验。未更新的模型分析基于初始数据的模型随时间的准确性,而更新的模型添加随时间变化的数据来更新模型以分析准确性。初始集成模型的平均精度超过90.0%,旋转森林算法的性能达到93.5%。将30天后训练的模型与初始模型进行比较,两种情况下的分类性能都有所下降;未更新的降幅超过30.0%,更新的降幅约为10.0%。实验结果表明,使用机器学习的WF可能需要定期进行模型学习。
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引用次数: 3
Replay Spoof Attack Detection using Deep Neural Networks for Classification 基于深度神经网络分类的重放欺骗攻击检测
Salahaldeen Duraibi, Wasim Alhamdani, Frederick T. Sheldon
In this paper, we explore the use of the deep learning approach for replay spoof detection in speaker verification systems. Automatic speaker verifications (ASVs) can be easily spoofed by previously recorded genuine speech. In order to counter the issues of spoofing, detecting spoofing attacks play an important role. Hence, we consider the detection of replay attack spoofing that is the most easily accomplished spoofing attack. In this light, we propose a deep neural network-based (DNN) classifier using a hybrid feature from Mel-frequency cepstral coefficient (MFCC) and constant Q cepstral coefficient (CQCC). Several experiments were conducted on the latest version of ASVspoof 2017 dataset. The results are compared with a base line system that uses the Gaussian mixture model (GMM) classifier with different features that include MFCC, CQCC, and the hybrid feature of the two. The experiment results reveal that the DNN classifier outperforms the conventional GMM classifier. It was found that the hybrid-based features are superior to single features, such as CQCC and MFCC in terms of equal error rate (ERR). In addition, like many previous researchers have found, it turned out that high-frequency regions of speech utterance convey much more discriminative information for replay attack detection.
在本文中,我们探索了在说话人验证系统中使用深度学习方法进行重放欺骗检测。自动说话者验证(asv)很容易被先前录制的真实语音欺骗。为了对抗欺骗攻击的问题,检测欺骗攻击起着重要的作用。因此,我们认为检测重放攻击欺骗是最容易实现的欺骗攻击。鉴于此,我们提出了一种基于深度神经网络(DNN)的分类器,该分类器使用mel频率倒谱系数(MFCC)和常数Q倒谱系数(CQCC)的混合特征。在最新版本的ASVspoof 2017数据集上进行了多次实验。将结果与使用高斯混合模型(GMM)分类器的基线系统进行比较,该分类器具有不同的特征,包括MFCC, CQCC以及两者的混合特征。实验结果表明,DNN分类器优于传统的GMM分类器。结果表明,混合特征在等错误率(ERR)方面优于CQCC和MFCC等单一特征。此外,就像许多先前的研究人员发现的那样,事实证明语音的高频区域传递了更多的重放攻击检测的判别信息。
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引用次数: 4
Behavior-based Outlier Detection for Indoor Environment 基于行为的室内环境异常点检测
Shinjin Kang, Sookyun Kim
In this paper, we introduce a system that can detect the space outlier utilization of residents in indoor environment at low cost. Our system facilitates autonomous data collection from mobile app logs and the Google app server and generates a high-dimensional dataset required to detect outlier behaviors. For this, we used density-based clustering algorithm with t-distributed stochastic neighbor embedding (t-SNE). Our system enables easy acquisition of large volumes of data required for outlier detection. Our methodology can assist spatial analysis for indoor environments housing residents and help reduce the cost of space utilization feedback.
本文介绍了一种低成本的室内环境中居民空间异常值利用检测系统。我们的系统有助于从移动应用日志和谷歌应用服务器中自动收集数据,并生成检测异常行为所需的高维数据集。为此,我们使用基于密度的聚类算法与t分布随机邻居嵌入(t-SNE)。我们的系统可以轻松获取离群值检测所需的大量数据。我们的方法可以帮助住户对室内环境进行空间分析,并有助于减少空间利用反馈的成本。
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引用次数: 0
Using Serde to Serialize and Deserialize DIS PDUs 使用Serde对DIS pdu进行序列化和反序列化
Noah W. Scott, D. Hodson, Richard Dill, M. Grimaila
Serialization is the process of translating a data structure into a format that can be stored and/or transmitted, and then subsequently reconstructed at a later time to create an identical clone of the original. The use of data serialization assures data objects can be transmitted, stored, and reliably reconstructed across differing computer architectures, even with different data type sizes or endianness, with no additional effort.Serializing the data in an architecture-independent format prevents the problems of byte ordering, memory layout, or representing data structures in different programming languages. This is especially important in the context of live, virtual, and constructive (LVC) simulation environments where multiple geographically separated computers, each with many independent threads, are connected and must communicate with as little latency as possible to remain near "real-time" like in terms of responsiveness.In this paper, we demonstrate the use of Serde, a Rust-based systems programming language crate, to serialize and deserialize IEEE standard Distribute Interactive Simulation (DIS) Protocol Data Units (PDUs) to support DIS-based network interoperability. The results show that Serde is an efficient mechanism for serialization/deserialization when using the inherently safe Rust programming language.
序列化是将数据结构转换为可以存储和/或传输的格式的过程,然后在稍后的时间重建以创建原始数据的相同克隆。数据序列化的使用确保了数据对象可以在不同的计算机体系结构之间传输、存储和可靠地重构,甚至可以使用不同的数据类型大小或端序,而无需额外的工作。以独立于体系结构的格式序列化数据可以避免字节排序、内存布局或用不同编程语言表示数据结构的问题。这在实时、虚拟和建设性(LVC)模拟环境中尤其重要,在这种环境中,多台地理上分开的计算机,每台计算机都有许多独立的线程,并且必须以尽可能少的延迟进行通信,以便在响应性方面保持接近“实时”。在本文中,我们演示了使用Serde(一种基于rust的系统编程语言crate)来序列化和反序列化IEEE标准的分布式交互仿真(DIS)协议数据单元(pdu),以支持基于DIS的网络互操作性。结果表明,当使用本质上安全的Rust编程语言时,Serde是一种有效的序列化/反序列化机制。
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引用次数: 0
Density-Based Server Placement for Collaborative Virtual Services 基于密度的协同虚拟服务服务器布局
Sakir Yucel
The boundaries on different domains are blurring as corporations and infrastructure providers are collaborating to offer end-to-end services over the networks and infrastructures of various network, service, cloud, content delivery and other infrastructure providers as well as the customer premises. To capture opportunities and shine in competitive service market, infrastructure and service providers need to excel in addressing the changing customer requirements and in the operations and management of the resources. They should welcome effective collaboration with other network and infrastructure providers in delivering quality services to customers. Effective sharing of the infrastructure resources is essential in meeting the customer demands and reducing the cost. Server placement problem for end-to-end virtual services becomes a crucial optimization challenge for providers in such collaborative environments. We formulate the collaborative virtual server placement problem and suggest density-based clustering algorithms to address this problem.
不同领域的界限正在变得模糊,因为企业和基础设施提供商正在合作,通过各种网络、服务、云、内容交付和其他基础设施提供商以及客户场所的网络和基础设施提供端到端服务。要在竞争激烈的服务市场中把握机遇,并在竞争中脱颖而出,基础设施和服务供应商必须在应对不断变化的客户需求,以及资源的运作和管理方面表现出色。他们应欢迎与其他网络和基础设施供应商有效合作,为客户提供优质服务。有效地共享基础设施资源对于满足客户需求和降低成本至关重要。在这种协作环境中,端到端虚拟服务的服务器放置问题成为提供商面临的关键优化挑战。我们提出了协作虚拟服务器放置问题,并提出了基于密度的聚类算法来解决这个问题。
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引用次数: 1
Sensor-Based Air Pollution Prediction Using Deep CNN-LSTM 基于传感器的深度CNN-LSTM空气污染预测
Kabir Nagrecha, Pratyush Muthukumar, Emmanuel Cocom, Jeanne Holm, Dawn Comer, Irene Burga, M. Pourhomayoun
The devastating impacts of air pollution have be-come more and more evident in recent years. As our measurement technologies improve, we gain better insight into the true impact of this deadly, yet often ignored, threat. The first step in reducing the damages caused by this problem is being able to analyze and predict its patterns. The problem of predicting air quality and the presence of particulate matter lies in the nature of the data needed to create an accurate system. The sheer number of factors affecting air quality mean that previously proposed approaches often utilize a great many sources of data, aiming to incorporate images, wind graphs, traffic information, and more. Yet in truth, most areas outside large metropolises lack ready access to high-quality data, preventing them from ever implementing an effective system. We propose a system utilizing a 1-D deep convolutional neural network to analyze past sensor readings and predict air pollutant concentrations up to a day in the future at a 3-hour resolution. We specifically developed this model for predicting PM2.5 values. The system receives PM2.5 sensor values and discovers temporal pattern in the data, which will be later used for prediction. By removing the dependency on complex data inputs, the system becomes accesible and easily implementable for any region. Despite this simplified approach, the results are comparable to — and often better than — any current state-of-the-art predictive systems in this domain.
近年来,空气污染的破坏性影响变得越来越明显。随着我们测量技术的改进,我们对这种致命但往往被忽视的威胁的真正影响有了更好的了解。减少这一问题造成的损害的第一步是能够分析和预测其模式。预测空气质量和颗粒物质存在的问题在于创建准确系统所需的数据的性质。影响空气质量的因素众多,这意味着以前提出的方法通常利用大量的数据来源,旨在整合图像、风图、交通信息等。然而,事实上,大城市以外的大多数地区缺乏现成的高质量数据,这阻碍了他们实施有效的系统。我们提出了一个利用一维深度卷积神经网络分析过去传感器读数的系统,并以3小时的分辨率预测未来一天的空气污染物浓度。我们专门开发了这个模型来预测PM2.5值。该系统接收PM2.5传感器值,并在数据中发现时间模式,之后将用于预测。通过消除对复杂数据输入的依赖,该系统在任何地区都易于访问和实现。尽管采用了这种简化的方法,但其结果可与该领域中任何当前最先进的预测系统相媲美,而且往往优于该系统。
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引用次数: 8
Unsupervised Learning with Word Embeddings Captures Quiescent Knowledge from COVID-19 Drugs Literature 使用词嵌入的无监督学习从COVID-19药物文献中捕获静态知识
Tasnim Gharaibeh, E. Doncker
As COVID-19 patients flood hospitals worldwide, physicians are trying to search for effective antiviral therapies to save lives. However, there is currently a lack of proven effective medications against COVID-19. Multiple COVID-19 vaccine trials and treatments are underway, but yet need more time and testing. Furthermore, the SARS-CoV-2 virus that causes COVID-19 replicates poorly in multiple animals, including dogs, pigs, chickens, and ducks, which limits preclinical animal studies. We built an unsupervised deep learning model (CDVec) to produce word-embeddings using word2vec from a corpus of articles selectively focusing on COVID-19 candidate drugs that appeared in the literature to identify promising target drugs that could be used in COVID-19 treatment.
随着COVID-19患者涌入世界各地的医院,医生们正在努力寻找有效的抗病毒疗法来挽救生命。然而,目前缺乏针对COVID-19的有效药物。多种COVID-19疫苗试验和治疗正在进行中,但还需要更多的时间和测试。此外,导致COVID-19的SARS-CoV-2病毒在包括狗、猪、鸡和鸭在内的多种动物中复制不良,这限制了临床前动物研究。我们建立了一个无监督深度学习模型(CDVec),使用word2vec从文献中出现的文章语料库中选择性地关注COVID-19候选药物产生词嵌入,以确定可能用于COVID-19治疗的有希望的靶标药物。
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引用次数: 1
Next Generation of Gallery Sharing in VR VR中的下一代画廊共享
W. Phillips, L. Deligiannidis
The use of digital photo albums, social media posts, and embedded videos connect people closer to their memories. We believe the next generation of visual albums will immerse individuals through modern virtual reality technologies. This paper examines new methods for enhancing photo albums and visual content; achieved in highly interactive and realistic environments where users are presented with interactable frames, 360 imagery, videos, and dynamic exhibits.
数码相册、社交媒体帖子和嵌入式视频的使用将人们与他们的记忆联系得更紧密。我们相信,下一代视觉专辑将通过现代虚拟现实技术让个人沉浸其中。本文研究了增强相册和视觉内容的新方法;在高度互动和逼真的环境中实现,用户可以看到可交互的框架、360度图像、视频和动态展品。
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引用次数: 1
期刊
2020 International Conference on Computational Science and Computational Intelligence (CSCI)
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