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2016 IEEE International Conference on Services Computing (SCC)最新文献

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A Query-Based Summarization Service from Multiple News Sources 基于查询的多新闻源摘要服务
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.13
Elaheh Shafieibavani, M. Ebrahimi, R. Wong, Fang Chen
It can be time consuming to search Internet news, due to multiple sources reporting repetitive information. Given a query and a set of relevant text articles, query-focused multi-document summarization (QMDS) aims to generate a fluent, well-organized, and compact summary that answers the query. While QMDS helps to summarize search results, most top-performing systems for this purpose remain largely extractive. Extractive summarization extracts a group of sentences and concatenates them. In this paper, we propose a summarization service based on abstractive QMDS using multi-sentence compression (MSC). Our proposed service generates a novel summary representing the gist of the content of the source document(s). Experiments using popular summarization benchmark datasets demonstrate the effectiveness of the proposed service.
搜索互联网新闻可能会耗费大量时间,因为有多个来源报道重复的信息。给定一个查询和一组相关的文本文章,以查询为中心的多文档摘要(QMDS)旨在生成回答查询的流畅、组织良好和简洁的摘要。虽然QMDS有助于总结搜索结果,但大多数用于此目的的高性能系统在很大程度上仍然是提取的。摘要提取是将一组句子提取出来并将它们连接起来。本文提出了一种基于多句压缩(MSC)的抽象QMDS摘要服务。我们建议的服务生成一个新颖的摘要,表示源文档内容的要点。使用流行的摘要基准数据集进行的实验证明了所提出服务的有效性。
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引用次数: 7
HAWKS: A System for Highly Available Executions of Workflows 一个高可用性工作流执行系统
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.24
D. Schäfer, A. Weiss, M. Tariq, V. Andrikopoulos, Santiago Gómez Sáez, Lukas Krawczyk, K. Rothermel
The workflow technology is the de facto standard for managing business processes. Today, workflows are even used for automating interactions and collaborations between business partners, e.g., for enabling just-in-time production. Every workflow that is part of such a collaboration needs to be highly available. Otherwise, the business operations, e.g., the production, might be hindered or even stopped. Since today's business partners are scattered across the globe, the workflows are executed in a highly distributed and heterogeneous environment. Those environments are, however, failure-prone and, thus, providing availability is not trivial. In this work, we improve availability by replicating workflow executions, while ensuring that the outcome is the same as in a non-replicated execution. For making workflow replication easily usable with current workflow technology, we derive the requirements for modeling a workflow replication system. Then, we propose the HAWKS system, which adheres to the previously specified requirements and is compatible with current technology. We implement a proof-of-concept in the open-source workflow execution engine Apache ODE for demonstrating this compatibility. Finally, we extensively evaluate the impact of using HAWKS in terms of performance and availability in the presence of failures.
工作流技术是管理业务流程的事实上的标准。今天,工作流甚至被用于自动化业务伙伴之间的交互和协作,例如,用于支持即时生产。作为这种协作的一部分的每个工作流都需要是高度可用的。否则,可能会阻碍甚至停止生产等业务经营。由于今天的业务伙伴分散在全球各地,工作流在高度分布式和异构的环境中执行。然而,这些环境容易发生故障,因此,提供可用性并不是微不足道的。在这项工作中,我们通过复制工作流执行来提高可用性,同时确保结果与非复制执行中的结果相同。为了使工作流复制在当前的工作流技术中易于使用,我们推导了工作流复制系统建模的需求。然后,我们提出了符合先前规定要求并与当前技术兼容的HAWKS系统。我们在开源工作流执行引擎Apache ODE中实现了概念验证,以演示这种兼容性。最后,我们广泛评估了在出现故障时使用HAWKS对性能和可用性的影响。
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引用次数: 5
Securing Docker Containers from Denial of Service (DoS) Attacks 保护Docker容器免受拒绝服务(DoS)攻击
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.123
Jeeva Chelladhurai, P. Chelliah, S. Kumar
The concept of containerization and virtualization is getting traction in the cloud based IT environments. Docker engine is popular implementation for simplifying and streamlining containerization technology. IT industry realizes numerous automation and acceleration features and facilities through the embracement of the Docker-sponsored containerization paradigm, which is an operating system (OS)-level and lightweight virtualization. However the security issues affect the widespread and confident usage of Docker platform. In this paper, we have discussed important security issues of the Docker containers as well as the related work that is being carried out in this area. Also we have proposed security algorithms and methods to address DoS attacks related issues in the Docker container technology. The preliminary experiments and testing of the security methods are promising.
容器化和虚拟化的概念在基于云的IT环境中越来越受欢迎。Docker引擎是简化和精简容器化技术的流行实现。IT行业通过采用docker支持的容器化范式实现了许多自动化和加速特性和设施,容器化范式是一种操作系统级别的轻量级虚拟化。然而,安全问题影响了Docker平台的广泛和自信的使用。在本文中,我们讨论了Docker容器的重要安全问题以及在这一领域正在进行的相关工作。此外,我们还在Docker容器技术中提出了解决DoS攻击相关问题的安全算法和方法。安全防护方法的初步实验和测试是有希望的。
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引用次数: 61
What Code Implements Such Service? A Behavior Model Based Feature Location Approach 什么代码实现这样的服务?基于行为模型的特征定位方法
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.23
Guangtai Liang, Yabin Dang, Hao Chen, Lijun Mei, Shaochun Li, Yi-Min Chee
Enterprises today are keen to unlock new business values of their legacy services towards new trends (e.g., cloud and mobile). To accelerate such process, automatic feature location techniques can enable developers to rapidly locate/understand implementations of certain services (e.g., services to expose, transform or improve). Existing feature location techniques [1-3, 5-10, 32] provide a good foundation but have several key limitations: limited leverage of description sources, less considerations of internal behaviors, and ineffectiveness for the identification of service-relevant code entries. To address these limitations, we propose a behavior model based feature location approach and implement a tool named BMLocator. In the offline phase, BMLocator applies Natural Language Processing (NLP) techniques and static code analysis to extract “behavior models” of code units via considering multiple information sources. While in the online phase, given a service description, BMLocator first extracts its behavior model and then recommends service-relevant code units/entries by matching its behavior model with code units under analysis. Through evaluations with public service requests of open-source projects (e.g., Tomcat and Hadoop), we show that the approach is more effective in recommending service-relevant code entries (e.g., most of entries are prioritized as the first ones) than existing techniques (i.e., TopicXP[37], CVSSearch[6]).
今天的企业热衷于将其遗留服务的新业务价值释放给新的趋势(例如,云和移动)。为了加速这一过程,自动特性定位技术可以使开发人员快速定位/理解某些服务的实现(例如,要公开、转换或改进的服务)。现有的特征定位技术[1- 3,5 - 10,32]提供了一个良好的基础,但有几个关键的局限性:对描述源的利用有限,对内部行为的考虑较少,以及对服务相关代码条目的识别无效。为了解决这些限制,我们提出了一种基于行为模型的特征定位方法,并实现了一个名为BMLocator的工具。在离线阶段,BMLocator应用自然语言处理(NLP)技术和静态代码分析,通过考虑多个信息源,提取代码单元的“行为模型”。在联机阶段,给定一个服务描述,BMLocator首先提取其行为模型,然后通过将其行为模型与正在分析的代码单元相匹配,推荐与服务相关的代码单元/条目。通过对开源项目(例如Tomcat和Hadoop)的公共服务请求的评估,我们表明该方法在推荐与服务相关的代码条目(例如,大多数条目被优先考虑为第一个)方面比现有技术(例如,TopicXP[37], CVSSearch[6])更有效。
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引用次数: 0
A Top-Down Pricing Algorithm for IT Service Contracts Using Lower Level Service Data 使用低级服务数据的IT服务契约自顶向下定价算法
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.99
Kugamoorthy Gajananan, Aly Megahed, M. Abe, Taiga Nakamura, Mark A. Smith
Information technology (IT) service providers competing for high valued contracts need to produce a compelling proposal with competitive price. The traditional approach to pricing IT service deals, which builds up the bottom-up costs from the hierarchy of services, is often time consuming, resource intensive, and only available late as it requires granular information of a solution. Recent work on top-down pricing approach enables efficient and early estimates of cost and prices using high level services to overcome and complement these problems. In this paper, we describe an extended pricing method for top-down pricing using the secondary service level. The method makes use of data lower level services to calculate improved estimates, yet still requires minimal input. We compare the previous and new approaches based on industrial data on historical and market deals, and demonstrate that the new approach can generate more accurate estimates. In addition, we also show that mining historical data would yield more accurate estimation than using market data for services, experimental results are in consistent with our findings in previous work.
竞争高价值合同的信息技术(IT)服务提供商需要提供具有竞争力价格的引人注目的提案。为IT服务交易定价的传统方法(从服务层次结构中构建自底向上的成本)通常非常耗时、资源密集,并且只有在需要解决方案的细粒度信息时才可用。最近关于自上而下定价方法的工作能够利用高水平的服务来克服和补充这些问题,从而有效和早期地估计成本和价格。本文描述了一种基于二级服务层次的自顶向下定价的扩展定价方法。该方法利用数据较低级的服务来计算改进的估计,但仍然需要最少的输入。我们比较了基于历史和市场交易的工业数据的旧方法和新方法,并证明新方法可以产生更准确的估计。此外,我们还表明,挖掘历史数据比使用市场数据对服务进行评估更准确,实验结果与我们之前的研究结果一致。
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引用次数: 10
The rSLA Framework: Monitoring and Enforcement of Service Level Agreements for Cloud Services rSLA框架:云服务服务水平协议的监控和执行
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.87
Mohamed Mohamed, Obinna Anya, T. Sakairi, S. Tata, N. Mandagere, Heiko Ludwig
Managing service quality in heterogeneous Cloud environments is complex: different Cloud providers expose different management interfaces. To manage Service Level Agreements (SLAs) in this context, we have developed the rSLA framework that enables fast setup of SLA monitoring in dynamic and heterogeneous Cloud environments. The rSLA framework is made up of three main components: the rSLA language to formally represent SLAs, the rSLA Service, which interprets the SLAs and implements the behavior specified in them, and a set of Xlets - lightweight, dynamically bound adapters to monitoring and controlling interfaces. In this paper, we present the rSLA framework, and describe how it enables the monitoring and enforcement of service level agreements for heterogeneous Cloud services.
在异构云环境中管理服务质量是复杂的:不同的云提供商公开不同的管理接口。为了在这种情况下管理服务水平协议(SLA),我们开发了rSLA框架,可以在动态和异构云环境中快速设置SLA监控。rSLA框架由三个主要组件组成:正式表示sla的rSLA语言,解释sla并实现其中指定的行为的rSLA服务,以及一组xlet——用于监视和控制接口的轻量级、动态绑定的适配器。在本文中,我们介绍了rSLA框架,并描述了它如何监视和实施异构云服务的服务水平协议。
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引用次数: 16
Recommending Analytic Services for Population Health Studies Based on Feature Significance 基于特征显著性推荐人群健康研究分析服务
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.67
Jinhui Yao, M. Shepherd, Jing Zhou, Lina Fu, Dennis Quebe, J. Echols, Xuejin Wen
Service-oriented thinking is one of the fastest growing paradigms in information technology, with relevance to many other disciplines. Service-oriented analytic workflows can bring together various analytic computing tools and compute resources offered as services to answer complex research questions. The current healthcare system in United States is experiencing fundamental transformation as it moves from a volume-based business to a value-based business. One strategy that healthcare organizations start to deploy is leveraging their healthcare data to gain insights for optimizing their operation. Therefore it is perfectly logical to extend the application of service-oriented analytic workflows to population health studies, as these rely on both medical expertise and processing of large data sets to serve end users of various backgrounds and skill sets. However, in the practical application of such service oriented approach, the user often finds it difficult to choose the right services or workflows that can help them to find the answers to their questions. To tackle this problem, we propose a heuristic recommendation method based on the feature significance. The user submits an enquiry, then based on which, the system will recommend the services and compositions that are likely to produce meaningful answers. In this paper, we will elaborate the interactions between different roles in a service oriented analytic system, develop the modeling to illustrate the relations among enquiry, features, services and workflows, propose the algorithm for service recommendation, architect the system and show a reference implementation of a prototype.
面向服务的思维是信息技术中发展最快的范例之一,与许多其他学科相关。面向服务的分析工作流可以将各种分析计算工具和计算资源作为服务提供,以回答复杂的研究问题。美国目前的医疗保健系统正在经历根本性的转变,从以数量为基础的业务转向以价值为基础的业务。医疗保健组织开始部署的一种策略是利用其医疗保健数据来获得优化其运营的见解。因此,将面向服务的分析工作流程的应用扩展到人口健康研究是完全合乎逻辑的,因为这些研究既依赖于医学专业知识,也依赖于对大型数据集的处理,以服务于不同背景和技能的最终用户。然而,在这种面向服务的方法的实际应用中,用户经常发现很难选择正确的服务或工作流来帮助他们找到问题的答案。为了解决这一问题,我们提出了一种基于特征显著性的启发式推荐方法。用户提交一个查询,然后系统将根据它推荐可能产生有意义的答案的服务和组合。在本文中,我们将详细阐述面向服务的分析系统中不同角色之间的交互,开发建模来说明查询、特征、服务和工作流之间的关系,提出服务推荐算法,构建系统并展示原型的参考实现。
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引用次数: 0
An Empirical Analysis of Diagnosis of Industrial Business Processes at Sub-process Levels 基于子过程层次的工业业务过程诊断实证分析
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.33
Suman Roy, A. Sajeev, A. Gopichand, A. Bhattacharya
Business process models expressed in languages such as BPMN (Business Process Model and Notation) play a critical role in implementing the workflows in modern organizations. However, control flow errors such as deadlock and lack of synchronization as well as syntactic errors arising out of poor modeling practices often occur in industrial process models. In this paper, we provide an empirical diagnostic analysis of such errors for real-life industrial process models. The investigation involved models from different application domains. It turns out that error frequency has non-linear relation with error depth (the maximum depth at which an error occurred) across models from all domains. Error occurrence has statistically significant correlations (p <; 0.0001) with the size of sub-processes as well as with the swim-lane interactions, however only the former correlation is strong (Spearman's ρ = 0.579). We also develop a logistic regression model to estimate error probability in terms of the following metrics: sub-process size, coefficient of connectivity, sequentiality and structuredness; the predictive model fits well with the data (χ2(4, N = 1261) = 720.68, p <; 0.001).
用BPMN(业务流程模型和符号)等语言表示的业务流程模型在实现现代组织中的工作流方面发挥着关键作用。然而,控制流错误(如死锁和缺乏同步)以及由不良建模实践引起的语法错误经常发生在工业流程模型中。在本文中,我们为现实工业过程模型提供了这种误差的实证诊断分析。调查涉及来自不同应用领域的模型。结果表明,在所有领域的模型中,错误频率与错误深度(错误发生的最大深度)呈非线性关系。错误发生率与统计学显著相关(p <;0.0001)与子过程的大小以及泳道相互作用有关,但只有前者的相关性很强(斯皮尔曼ρ = 0.579)。我们还开发了一个逻辑回归模型,根据以下指标来估计错误概率:子过程大小、连通性系数、顺序性和结构性;预测模型与数据拟合良好(χ2(4, N = 1261) = 720.68, p <;0.001)。
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引用次数: 0
Case Studies in Managing Traffic in a Developing Country with Privacy-Preserving Simulation as a Service 在发展中国家使用隐私保护模拟服务管理流量的案例研究
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.130
B. Srivastava, M. Pallan, M. Madhavan, Ravi Kokku
Simulation is known to be an effective technique to understand and manage traffic in cities of developed countries. However, in developing countries, traffic management is lacking due to a wide diversity of vehicles on the road, their chaotic movement, little instrumentation to sense traffic state and limited funds to create IT and physical infrastructure to ameliorate the situation. Under these conditions, in this paper, we present our approach of using the Megaffic traffic simulator as a service to gain actionable insights for two use-cases and cities in India, a first. Our approach is general to be readily used in other use cases and cities, and our results give new insights: (a) using demographics data, traffic demand can be reduced if timings of government offices are altered in Delhi, (b) using a mobile company's Call Data Record (CDR) data to mine trajectories anonymously, one can take effective traffic actions while organizing events in Mumbai at local scale.
模拟被认为是一种有效的技术来了解和管理在发达国家的城市交通。然而,在发展中国家,由于道路上的车辆种类繁多,运动混乱,检测交通状态的仪器很少,用于改善这种状况的信息技术和物理基础设施的资金有限,交通管理缺乏。在这些条件下,在本文中,我们提出了使用Megaffic交通模拟器作为服务的方法,以获得针对印度两个用例和城市的可操作见解,这是第一次。我们的方法通常很容易用于其他用例和城市,我们的结果提供了新的见解:(a)使用人口统计数据,如果德里政府办公室的时间改变,交通需求可以减少;(b)使用移动公司的通话数据记录(CDR)数据匿名挖掘轨迹,人们可以在孟买组织当地规模的活动时采取有效的交通行动。
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引用次数: 0
A Services Lifecycle to Support the Business Processes Lifecycle: From Modeling to Execution and Beyond 支持业务流程生命周期的服务生命周期:从建模到执行及以后
Pub Date : 2016-06-01 DOI: 10.1109/SCC.2016.117
Andrea Delgado
The realization of business process with services has gain more importance in the last decade. Several organizations are focusing nowadays in the modeling and execution of their business processes, seizing the advantages provided by both the BPMN 2.0 notation which allows these models to be executed, and the emergence of BPMS platforms which are able to execute business processes invoking internal and external services from partners and/or the cloud when needed. Although many lifecycle proposals exist to guide the definition and management of both business process and services, there is no clear relationship defined between them, i.e. how services should be defined and managed to support business processes. This is a key element that should be taken into account when implementing services for this kind of systems, in order to systematize the work and obtain better results. In this paper we present a service lifecycle to support business processes, which helps developing services for business process systems.
近十年来,用服务实现业务流程变得越来越重要。现在,一些组织正在关注其业务流程的建模和执行,抓住BPMN 2.0符号(允许执行这些模型)和BPMS平台(能够在需要时从合作伙伴和/或云调用内部和外部服务)所提供的优势。尽管存在许多生命周期建议来指导业务流程和服务的定义和管理,但它们之间没有明确的关系,即应该如何定义和管理服务以支持业务流程。这是为这类系统提供服务时应考虑到的一个关键因素,以便使工作系统化并取得更好的结果。在本文中,我们提出了一个支持业务流程的服务生命周期,它有助于为业务流程系统开发服务。
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引用次数: 2
期刊
2016 IEEE International Conference on Services Computing (SCC)
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