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2013 IEEE International Conference on Services Computing最新文献

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AESON: A Model-Driven and Fault Tolerant Composite Deployment Runtime for IaaS Clouds AESON:用于IaaS云的模型驱动和容错组合部署运行时
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.102
D. Jayasinghe, C. Pu, Fábio Oliveira, Florian Rosenberg, T. Eilam
Infrastructure-as-a-Service (IaaS) cloud environments expose to users the infrastructure of a data center while relieving them from the burden and costs associated with its management and maintenance. IaaS clouds provide an interface by means of which users can create, configure, and control a set of virtual machines that will typically host a composite software service. Given the increasing popularity of this computing paradigm, previous work has focused on modeling composite software services to automate their deployment in IaaS clouds. This work is concerned with the runtime state of composite services during and after deployment. We propose AESON, a deployment runtime that automatically detects node (virtual machine) failures and eventually brings the composite service to the desired deployment state by using information describing relationships between the service components. We have designed AESON as a decentralized peer-to-peer publish/subscribe system leveraging IBM's Bulletin Board (BB), a topic-based distributed shared memory service built on top of an overlay network.
基础设施即服务(IaaS)云环境向用户公开了数据中心的基础设施,同时减轻了与管理和维护相关的负担和成本。IaaS云提供了一个接口,用户可以通过该接口创建、配置和控制一组虚拟机,这些虚拟机通常托管组合软件服务。鉴于这种计算范式的日益普及,以前的工作主要集中在对组合软件服务进行建模,以便在IaaS云中自动部署它们。这项工作与部署期间和之后的组合服务运行时状态有关。我们提出AESON,这是一个部署运行时,它自动检测节点(虚拟机)故障,并通过使用描述服务组件之间关系的信息,最终将组合服务带到所需的部署状态。我们将AESON设计为一个分散的点对点发布/订阅系统,利用IBM的公告板(BB),这是一种基于主题的分布式共享内存服务,建立在覆盖网络之上。
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引用次数: 13
Measuring and Applying Service Request Effort Data in Application Management Services 在应用程序管理服务中度量和应用服务请求工作数据
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.64
Ying Li, K. Katircioglu
In Application Management Services (AMS), high resource utilization, effective resource planning and optimal assignment of service requests to resources are critical to success. Meeting these objectives requires a systematic and repeatable approach for determining the best way of measuring resource utilization, assessing workload and assigning service requests. In this paper, we present a two-step approach to help achieve the above objectives. We first measure the actual amount of effort that each resource spends on handling each service request (SR) based on a metadata model and a set of SR handling priority rules. Then, we proceed to measure resource utilization and assess SR assignment process based on the effort data calculated in step one.
在应用管理服务(AMS)中,高资源利用率、有效的资源规划和对资源的服务请求的最佳分配是成功的关键。要实现这些目标,需要一种系统的、可重复的方法来确定衡量资源利用、评估工作量和分配服务请求的最佳方法。在本文中,我们提出了一个两步走的方法来帮助实现上述目标。我们首先根据元数据模型和一组SR处理优先级规则度量每个资源在处理每个服务请求(SR)上花费的实际工作量。然后,基于第一步计算的工作数据,对资源利用率进行度量并评估SR分配过程。
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引用次数: 2
UCOS: Enhanced Online Skyline Computation by User Clustering UCOS:通过用户聚类增强在线天际线计算
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.14
Kehan Chen, Lichuan Ji, Kunyang Jia, Jian Wu
In this paper, we propose a skyline computation system UCOS (User Clustering based Online Skyline), which divides the computation into offline and online stages. Based on the truth that QoS similarity implies the skyline similarity, the offline stage of UCOS system dose user clustering according to the historical user-service QoS records by given distance metrics. Then, we compute the representative skyline for each cluster standing for the general characters of the users' skylines. Benefit from those offline results, the online stage is able to give a rapid prediction for online skyline request and achieves good online computation performance by doing refinement on the predicted results.
本文提出了一种基于用户聚类的在线天际线计算系统UCOS (User Clustering based Online skyline),该系统将计算分为离线和在线两个阶段。基于QoS相似度意味着天际线相似度的事实,UCOS系统的离线阶段根据给定距离度量的历史用户服务QoS记录进行用户聚类。然后,我们计算代表用户天际线一般特征的每个集群的代表性天际线。利用这些离线结果,在线阶段能够对在线天际线请求进行快速预测,并通过对预测结果进行细化,获得良好的在线计算性能。
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引用次数: 0
Learning Recommendation System for Automated Service Composition 面向自动化服务组合的学习推荐系统
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.66
Alexander Jungmann, B. Kleinjohann
The as a Service paradigm reflects the fundamental idea of providing basic coherent functionality in terms of components that can be utilized on demand. These so-called services may also be interconnected in order to provide more complex functionality. Automation of this service composition process is indeed a formidable challenge. In our work, we are addressing this challenge by decomposing service composition into sequential decision making steps. Each step is supported by a recommendation mechanism. If composition requests recur over time and if evaluations of composition results are fed back, a proper recommendation strategy can evolve over time through learning from experience. In this paper, we describe our general idea of modeling this service composition and recommendation process as Markov Decision Process and of solving it by means of Reinforcement Learning. A case study serves as proof of concept.
即服务范式反映了以可按需使用的组件形式提供基本一致功能的基本思想。这些所谓的服务也可以相互连接,以提供更复杂的功能。此服务组合过程的自动化确实是一项艰巨的挑战。在我们的工作中,我们通过将服务组合分解为连续的决策制定步骤来解决这一挑战。每个步骤都由推荐机制支持。如果作文请求随着时间的推移而重复出现,并且对作文结果的评估得到反馈,那么通过从经验中学习,适当的推荐策略可以随着时间的推移而发展。在本文中,我们描述了我们将这种服务组合和推荐过程建模为马尔可夫决策过程的总体思路,并通过强化学习的方法来解决它。案例研究可以作为概念的证明。
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引用次数: 6
Clustering and Spherical Visualization of Web Services Web服务的聚类和球形可视化
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.90
B. Kumara, Y. Yaguchi, Incheon Paik, Wuhui Chen
Web service clustering is one of a very efficient approach to discover Web services efficiently. Current clustering approaches use traditional clustering algorithms such as agglomerative as the clustering algorithm. The algorithms have not provided visualization of service clusters that gives inspiration for a specific domain from visual feedback and failed to achieve higher noise isolation. Furthermore iterative steps of algorithms consider about the similarity of limited number of services such as similarity of cluster centers. This leads to reduce the cluster performance. In this paper we apply a spatial clustering technique called the Associated Keyword Space(ASKS) which is effective for noisy data and projected clustering result from a three-dimensional (3D) sphere to a two dimensional(2D) spherical surface for 2D visualization. One main issue, which affects to the performance of ASKS algorithm is creating the affinity matrix. We use semantic similarity values between services as the affinity values. Most of the current clustering approaches use similarity distance measurement such as keyword, ontology and information-retrieval-based methods. These approaches have problem of short of high quality ontology and loss of semantic information. In this paper, we calculate the service similarity by using hybrid term similarity method which uses ontology learning and information retrieval. Experimental results show our clustering approach is able to plot similar services into same area and aid to search Web services by visualization of the service data on a spherical surface.
Web服务集群是高效发现Web服务的一种非常有效的方法。目前的聚类方法采用传统的聚类算法,如agglomerative作为聚类算法。这些算法没有提供服务集群的可视化,无法从视觉反馈中为特定领域提供灵感,也无法实现更高的噪声隔离。此外,算法的迭代步骤考虑了有限数量服务的相似性,如聚类中心的相似性。这将导致集群性能降低。在本文中,我们应用了一种称为关联关键字空间(ASKS)的空间聚类技术,该技术对噪声数据和从三维(3D)球体到二维(2D)球面的投影聚类结果有效,用于二维可视化。影响ASKS算法性能的一个主要问题是关联矩阵的创建。我们使用服务之间的语义相似值作为亲和值。目前的聚类方法大多采用相似距离度量方法,如关键字、本体和基于信息检索的方法。这些方法存在缺乏高质量本体和语义信息丢失的问题。本文采用本体学习和信息检索相结合的混合术语相似度方法计算服务相似度。实验结果表明,我们的聚类方法能够将相似的服务绘制到同一区域,并通过在球面上可视化服务数据来帮助搜索Web服务。
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引用次数: 9
Sensor Data as a Service -- A Federated Platform for Mobile Data-centric Service Development and Sharing 传感器数据即服务——以移动数据为中心的服务开发和共享的联合平台
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.34
Jia Zhang, Bob Iannucci, M. Hennessy, Kaushik Gopal, S. Xiao, Sumeet Kumar, David Pfeffer, Basmah Aljedia, Yuan Ren, M. Griss, Steven Rosenberg, J. Cao, Anthony G. Rowe
The Internet of Things (IoT) offers the promise of integrating the digital world of the Internet with the physical world in which we live. But realizing this promise necessitates a systematic approach to integrating the sensors, actuators, and information on which they operate into the Internet we know today. This paper reports the design and development of an open community-oriented platform aiming to support federated sensor data as a service, featuring interoperability and reusability of heterogeneous sensor data and data services. The concepts of virtual sensors and virtual devices are identified as central autonomic units to model scalable and context-aware configurable/reconfigurable sensor data and services. The decoupling of the storage and management of sensor data and platform-oriented metadata enables the handling of both discrete and streaming sensor data. A cloud computing-empowered prototyping system has been established as a proof of concept to host smart community-oriented sensor data and services.
物联网(IoT)提供了将互联网的数字世界与我们生活的物理世界融合在一起的希望。但是,实现这一承诺需要一种系统的方法,将传感器、执行器和它们所依赖的信息集成到我们今天所知道的互联网中。本文报告了一个开放的面向社区的平台的设计和开发,旨在支持联邦传感器数据作为服务,具有异构传感器数据和数据服务的互操作性和可重用性。虚拟传感器和虚拟设备的概念被确定为中央自治单元,用于建模可扩展和上下文感知的可配置/可重构传感器数据和服务。传感器数据的存储和管理与面向平台的元数据的解耦使得处理离散和流传感器数据成为可能。一个基于云计算的原型系统已经建立,作为托管面向社区的智能传感器数据和服务的概念验证。
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引用次数: 44
Multi-tenancy Support with Organization Management in the Cloud of Things 多租户支持和物联网中的组织管理
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.61
S. Kim, Daeyoung Kim
"Cloud of Things" (CoT) is a concept that provides smart things' functions as a service and allows them to be used by multiple applications. In the CoT, a single smart thing instance should efficiently host multiple applications, called multi-tenancy. However, since multiple applications may simultaneously access the same smart things, they may contend for uses of the same smart things, which is called resource conflicts. Moreover, smart things inherently form complex dependencies, examples of which are include a group of smart things in a room, a group of smart things owned by a person, etc. Since handling resource conflicts and complex dependencies at an application level is typically ad-hoc and error-prone, it results in exacerbating readability of application codes. To address these issues, we propose a middleware for Cloud of Things called ECO. The ECO middleware manages organizations to handle dependency among/between smart things and virtualizes physical smart things to enable isolation between/among multiple applications using shared smart things yet internally controls smart things's sharing to resolve resource conflicts. Also, it provides consolidation by harmonizing different smart things's execution contexts of multiple applications for efficient utilization of the shared smart things. As a result, ECO middleware facilitates development of multiple applications over heterogeneous smart things with efficient sharing. The ECO middleware is implemented with heterogeneous device frameworks like UPnP, ZigBee, and CoAP over 6LoWPAN. We show that ECO middleware provides efficient sharing controls and access controls with negligible virtualization overhead.
“物云”(CoT)是一个概念,它将智能事物的功能作为一种服务提供,并允许它们被多个应用程序使用。在CoT中,单个智能设备实例应该有效地托管多个应用程序,称为多租户。但是,由于多个应用程序可能同时访问相同的智能设备,因此它们可能会争夺使用相同的智能设备,这称为资源冲突。此外,智能事物本质上形成复杂的依赖关系,其中的例子包括房间中的一组智能事物,个人所拥有的一组智能事物等。由于在应用程序级别处理资源冲突和复杂的依赖关系通常是特别的,而且容易出错,因此会导致应用程序代码的可读性恶化。为了解决这些问题,我们提出了一种名为ECO的物联网中间件。ECO中间件管理组织处理智能设备之间的依赖关系,并虚拟化物理智能设备,以启用使用共享智能设备的多个应用程序之间的隔离,同时在内部控制智能设备的共享以解决资源冲突。此外,它还通过协调多个应用程序的不同智能设备的执行上下文来提供整合,从而有效地利用共享的智能设备。因此,ECO中间件通过高效共享,促进了异构智能设备上多个应用程序的开发。ECO中间件通过异构设备框架(如UPnP、ZigBee和6LoWPAN上的CoAP)实现。我们展示了ECO中间件提供了高效的共享控制和访问控制,虚拟化开销可以忽略不计。
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引用次数: 9
Services for Context Aware Knowledge Enhancement and Its Application in the Chinese Enterprise Management Tank (CEMT) 情境感知知识增强服务及其在中国企业管理库中的应用
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.32
Ke Ning, Zhangbing Zhou, Jianhua Zheng, Dong Liu, Liang-Jie Zhang
In the era of knowledge economy, knowledge resources have become the most valuable assets for enterprises. To better understand and reuse knowledge, it is necessary to relate it with the context in which the knowledge is generated and used. This is a process that usually occurs in an experienced knowledge-worker's mind and without efficient supporting tools. This paper proposes an approach for the acquisition and utilization of context for the enhancement of knowledge and with a particular focus on methods to enable context extraction from industrial settings. The approach adopts a knowledge context ontology, to correlate knowledge and its context in the high-level activities of a knowledge worker. Knowledge context are extracted by utilizing a combination of methods including context identification, context reasoning, and context similarity measurement. Based on the proposed approach, a set of services for context aware knowledge enhancement are developed and applied in The Chinese Enterprise Management Tank (CEMT), a knowledge sharing and reusing platform for business management knowledge workers in all around China.
在知识经济时代,知识资源已经成为企业最宝贵的资产。为了更好地理解和重用知识,有必要将其与生成和使用知识的上下文联系起来。这个过程通常发生在经验丰富的知识工作者的脑海中,没有有效的辅助工具。本文提出了一种获取和利用上下文的方法,以增强知识,并特别关注从工业环境中提取上下文的方法。该方法采用知识上下文本体,将知识及其上下文关联到知识工作者的高层活动中。知识语境的提取方法包括语境识别、语境推理和语境相似度测量。基于该方法,本文开发了一套上下文感知知识增强服务,并将其应用于面向全国企业管理知识型员工的知识共享和重用平台——中国企业管理库(CEMT)。
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引用次数: 1
Data Decomposition Based Partial Replication Model for Software Services 基于数据分解的软件服务部分复制模型
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.83
Shuo Chen, Chi-Hung Chi, Chen Ding, R. Wong
Nowadays many software services are hosted in the Cloud. When there are more requests on these services, there are also more queries sent to the underlying database. In order to keep up with the increasing workload, it is necessary to have multiple servers hosting the data. Some cloud providers offer the full data replication solution. However, this solution only works when the load mainly consists of the read requests, and when the number of write requests increases, it does not scale well. Although data decomposition has been widely used in data-intensive web sites, not much study has been done on how to decompose the underlying data of software services for the purpose of data replication. In this paper, we propose a data-decomposition-based partial replication model for software services. We devise an automatic algorithm for data decomposition under the constraint of the capacity limit of the host machines. We evaluate our approach from two aspects: scalability and performance, using two benchmarks: RUBiS and TPC-W. In the experiment, we test the algorithm using different workload inputs, and also compare our approach with the full data replication approach.
如今,许多软件服务托管在云中。当在这些服务上有更多的请求时,也会有更多的查询发送到底层数据库。为了跟上不断增加的工作负载,有必要使用多个服务器来托管数据。一些云提供商提供完整的数据复制解决方案。但是,这种解决方案只适用于负载主要由读请求组成的情况,而当写请求数量增加时,它的可伸缩性就不好了。虽然数据分解在数据密集型网站中得到了广泛的应用,但是对于如何分解软件服务的底层数据以实现数据复制的研究还不多。本文提出了一种基于数据分解的软件服务部分复制模型。在主机容量限制的约束下,设计了一种数据自动分解算法。我们从两个方面评估我们的方法:可伸缩性和性能,使用两个基准:RUBiS和TPC-W。在实验中,我们使用不同的工作负载输入来测试算法,并将我们的方法与完整的数据复制方法进行了比较。
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引用次数: 1
A CCRA Based Mass Customization Development for Cloud Services 基于CCRA的云服务大规模定制开发
Pub Date : 2013-06-28 DOI: 10.1109/SCC.2013.113
Bo Hu, Yutao Ma, Liang-Jie Zhang, Chunxiao Xing, Jun Zou, Ping Xu
With the incredible popularity of cloud computing, the adoption of mass customization (MC) is significant for building a cloud computing system that could provide services provisioning in a manner of multi-tenancy. Because of lack of a standard architecture that supports MC development for cloud services, the existing metadata or model driven approaches have insufficient abilities to realize personalized requirements with mass production when applied to product development in large-scale enterprises. Aiming at these problems, this paper presents a novel MC-based development approach for enterprise-level business cloud services based on the specification of the Cloud Computing Reference Architecture (CCRA), and shares the practice about how the approach is applied to building Kingdee K/3 Collaboration Development Cloud (CDC). Successful practice has proved that by adopting our MC development approach, we can develop platforms and tools on the cloud at a low cost and more effectively.
随着云计算的普及,大规模定制(MC)的采用对于构建能够以多租户方式提供服务供应的云计算系统非常重要。由于缺乏支持云服务MC开发的标准体系结构,现有的元数据或模型驱动方法在应用于大型企业的产品开发时,无法实现大规模生产的个性化需求。针对这些问题,本文提出了一种基于云计算参考体系结构(CCRA)规范的基于mc的企业级业务云服务开发新方法,并分享了该方法在构建金蝶K/3协同开发云(CDC)中的应用实践。成功的实践证明,采用我们的MC开发方法,我们可以以低成本和更有效的方式在云上开发平台和工具。
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引用次数: 5
期刊
2013 IEEE International Conference on Services Computing
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