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所属行业:信息传输、软件和信息技术服务业

  • 43081.引入集体自由:云功能的应用服务器的管理基础

    [信息传输、软件和信息技术服务业] [2013-12-10]

    Evolutionary forces driving the IT industry toward cloud computing increase the pressureon application server management solutions to both accommodate traditional infrastructuredeployments and enable cloud-based deployments. Lightweight, standards-based, flexiblescalability are among the necessary hallmarks of an architecture that embraces this duality.Liberty collectives deliver next generation application server management for the IBM ebSphere Application Server Liberty profile both inside and outside the cloud.
    关键词:剖析;发展模型;配置管理;云计算
  • 43082.土地信息系统模拟比较美国大陆的四个降水压力数据集

    [信息传输、软件和信息技术服务业] [2013-12-10]

    This paper and poster presented a description of the current real-time SPoRT-LIS run over the southeastern CONUS to provide high-resolution, land surface initialization grids for local numerical model forecasts at NWS forecast offices. The LIS hourly output also offers a supplemental dataset to aid in situational awareness for convective initiation forecasts, assessing flood potential, and monitoring drought at fine scales. It is a goal of SPoRT and several NWS forecast offices to expand the LIS to an entire CONUS domain, so that LIS output can be utilized by NWS Western Region offices, among others. To make this expansion cleanly so as to provide high-quality land surface output, SPoRT tested new precipitation datasets in LIS as an alternative forcing dataset to the current radar+gauge Stage IV product. Similar to the Stage IV product, the NMQ product showed comparable patterns of precipitation and soil moisture distribution, but suffered from radar gaps in the intermountain West, and incorrectly set values to zero instead of missing in the data-void regions of Mexico and Canada. The other dataset tested was the next-generation GOES-R QPE algorithm, which experienced a high bias in both coverage and intensity of accumulated precipitation relative to the control (NLDAS2), Stage IV, and NMQ simulations. The resulting root zone soil moisture was substantially higher in most areas.
    关键词:电子信息;信息系统;土地;压力
  • 43083.安全信息自动取款机(SIATM)的正式完整框架与应用

    [计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2013-12-10]

    Information Security is traditionally treated in three main categories: Con dentiality, Integrity, and Availability. While much work has been done on modelling Con dentiality and Availability, aspects involving comprehensive modelling and quality of data integrity in complex systems appear to be, on a relative scale, much less well understood and implemented. Further, most work on Integrity and resultant implementations seems to have focussed more on a matters related to source authentication and transmission assurance. However, the quality of data aspect is becoming more critical for attention, given the increasing levels of automation of information fusion and data transformation in a globalised Cyberspace. In this paper, we survey the existing integrity models and identify shortcomings of these with regard to a general integrity framework encompassing the quality of data aspect. We then propose and formally model a new framework, illustrating the approach with reference to use cases built around the Secure Information ATM (SIATM) - a highly accreditable security system currently under development.
    关键词:电子信息;信息系统;安全;应用
  • 43084.在IBM的纯应用系统备份和恢复——备份什么以及如何备份

    [信息传输、软件和信息技术服务业] [2013-12-10]

    IBM PureApplication System does not currently allow a full backup of all the storage on thesystem. Instead, what it does is permit a back up of the system configuration of PureApplicationSystem that would enable a system to be reconstructed in the case of a total PSM failure.In addition, the system can optionally also back up the virtual system images. We currentlyrecommend that you allocate about 160 GB of storage to cover the system db files and userimages, although this figure could change over time as you create new custom images and obtainnew patterns. This system and image backup is currently implemented through SSH copies, and isdone incrementally, where only deltas are recorded after the first full system backup.Since PureApplication System does not allow a full backup of all storage, users of PureApplicationSystem have to be more selective about what other parts of the user storage (besides the systemconfiguration above) is backed up. Remember that PureApplication System essentially runssystem workloads that consist of instances of patterns that are composed of virtual images, plusthe deployable artifacts (application code, such as JARs, WARs, and EARs) that are deployedinto those pattern instances. Given the automation that is either built into the system or that werecommend be added onto the system, what we contend is that the pattern instances can beentirely recreated from the patterns and the deployment automation at any time. Thus, the onlyinformation that can't be easily reconstructed would be user-specific data, such as databasecontents or the contents of specific files that hold user data. Thus, those are the only parts of theremaining data that need to be backed up. So, what we recommend is that any database that is stored on PureApplication System havean IBM Tivoli?Storage Manager agent configured on it so that it can be backed up onto a TivoliStorage Manager infrastructure. This is something that is already preconfigured in the Databaseas a Service (DBAAS) images. For other IBM DB2?images (for example, the built-in DB2HADRimages) you have to write a simple script package to install and configure the Tivoli StorageManager agent to point to the location of your existing Tivoli Storage Manager servers.
    关键词:可视化系统;数据库恢复;系统和图像备份
  • 43085.在IBM的纯应用系统虚拟应用程序模式可扩展性和弹性

    [信息传输、软件和信息技术服务业] [2013-12-10]

    IBM PureApplication System is an integrated system that combines hardware resources(compute nodes, storage, and networking) with software resources, using virtualization tomaximize the utilization of the system. Workloads (for example, transactional applications, webapplications, or data-centric applications) are supported via the use of patterns, which offerabstract views of the software components of a solution; for example, web applications, ordatabases. This article describes the various options that exist in IBM PureApplication Systemand IBM Workload Deployer for the creation of scalable middleware deployments using virtualapplication patterns.
    关键词:水平和垂直缩放;可视化应用模型;手动缩放
  • 43086.IBM公司形象建设和合成工具:创建Windows映像在IBM纯应用系统的使用

    [信息传输、软件和信息技术服务业] [2013-12-10]

    This article describes how to use the IBM?Image Construction and Composition Tool tocapture an image of a Windows?virtual machine running on a VMware ESX hypervisorexternal to IBM PureApplication?System. Then, after capturing the base image, you will seehow you can use the tool to configure your Windows image for use in virtual system and virtualapplication patterns within PureApplication System.
    关键词:虚拟机;构建及合成工具;云服务提供商
  • 43087.别回头看:事后分类检测通过稀疏重构

    [信息传输、软件和信息技术服务业] [2013-12-10]

    We consider optimal representations for representing prototypical categories in the latent deformable part model framework, with a specific emphasis on category-level retrieval tasks defined “on the fly” for a large corpus. In this
    setting, it is impractical to perform an exhaustive search with a full model; we investigate methods which approximately reconstruct the score function of a novel category from a set of precomputed responses. We propose a novel
    sparse reconstruction method where part classifiers are decomposed via a shared dictionary of part filters; in turn, our method can efficiently reconstruct approximate part responses on large image corpora using a sparse matrixvector product based on pre-computed filter responses instead of exhaustive convolutions. We compare our method to baseline schemes using SVD-based or nearest-category approximation and show our method is more effective at detecting novel categories. We additionally demonstrate results towards an end-to-end system for activity detection which trains a protoype category concept model from one dataset (PASCAL), learns post-hoc categories on the fly based on training data from a second dataset where labeled data are available (ImageNet), and sucessfully detects instances
    in test data from a third dataset (TRECVID MED) via reconstruction with the precomputed prototype models.
    关键词:模型框架原型;类级别检索;穷举搜索;稀疏重建方法;
  • 43088.评论专栏:对IBMWorkloadDeployer中和IBM纯粹的应用系统部署模式租赁政策

    [信息传输、软件和信息技术服务业] [2013-12-10]

    Discover the reasons for introducing lease policies into large cloud environments. This articleelaborates on one specific pattern deployment lease policy tailored for IBM PureApplication System, IBM SmartCloud Provisioning, and IBM Workload Deployer. The design andimplementation described here is a proven example of building lease policies for a cloudenvironment.
    关键词:模式部署租用策略;实施;希望
  • 43089.准备IBM的纯应用系统,第4部分:使用高级中间件配置工具V1.1入职培训应用到云计算

    [信息传输、软件和信息技术服务业] [2013-12-10]

    Using IBM PureApplication System, you can create and deploy virtual servers in the cloud thatrepresent middleware topologies and application configurations. However, you still face thechallenge of moving existing applications onto the cloud and automating them.This article describes how to capture and automate the deployment of a middleware topologyand application by using Advanced Middleware Configuration. This process is known as"onboarding." Before you begin, read through the instructions and make sure you have thenecessary permissions for all the steps you need to complete.
    关键词:纯应用系统;可视化应用;高级中间件;架构服务
  • 43090.从不同的生产工作负载的MapReduce的设计见解

    [信息传输、软件和信息技术服务业] [2013-12-10]

    In this paper, we analyze seven MapReduce workload traces from production clusters at Facebook and at Cloudera customers in e-commerce, telecommunications,edia, and retail. Cumulatively, these traces comprise over a year’s worth of data logged from over 5000 machines, and contain over two million jobs that perform 1.6 exabytes of I/O. Key observations include input data forms up to 77% of all bytes, 90% of jobs access KB to GB sized files that make up less than 16% of stored bytes, up to 60% of jobs re-access data that has been touched within the past 6 hours, peak-to-median job submission rates are 9:1 or greater, an average of 68% of all compute time is spent in map, task-seconds-per-byte is a key metric for balancing compute and data bandwidth, task durations range from seconds to hours, and five out of seven workloads contain map-only jobs. We have also deployed a public workload repository with workload replay tools so that the researchers can systematically assess design priorities and compare performance across diverse MapReduce workloads.
    关键词:集群生产工作量;电子商务;公共负载资料库;工作负载
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