Data layout, data placement, and synchronization processes are notusually part of a speech application expert’s daily concerns. Yetfailure to carefully take these concerns into account in a highly parallelimplementation on the graphics processing units (GPUs) couldmean an order of magnitude of loss in application performance. Inthis paper we present an application framework for parallel programming of automatic speech recognition (ASR) applications thatallows a speech application expert to effectively implement speechapplications on the GPU. It is an approach for crystallizing and transferring the often tacit knowledge of effective parallel programmingtechniques while allowing for flexible adaptation to variousapplication usage scenarios.

关键词：自动语音识别；ASR；应用程序

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Reduction of resource consumption in data centers is becoming a growing concern for data center designers, operators and users. Accordingly, interest in the use of renewable energy to provide some portion of a data center's overall energy usage is also growing. One key concern is that the amount of renewable energy necessary to satisfy a typical data center's power consumption can lead to prohibitively high capital costs for the power generation and delivery infrastructure, particularly if on-site renewables are used. In this paper, we introduce a method to operate a data center with renewable energy that minimizes dependence on grid power while minimizing capital cost. We achieve this by integrating data center demand with the availability of resource supplies during operation. We discuss results from the deployment of our method in a production data center.

关键词：数据中心；净零能源；可再生能源；可持续发展

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We have developed a process to integrate microstripline wiring with transition edge sensors (TES). The process includes additional layers for metal-etch stop and dielectric adhesion to enable recovery of parameters achieved in non-microstrip pixel designs. We report on device parameters in close-packed TES arrays achieved with the microstrip process including R(sub n), G, and T(sub c) uniformity. Further, we investigate limits of this method of producing high-density, microstrip wiring including critical current to determine the ultimate scalability of TES arrays with two layers of wiring.

关键词：光机电；传感器；微波带状线；格式转换

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Cloud computing refers to the underlying infrastructure for an emerging model of service provision that has the advantage of reducing cost by sharing computing and storage resources, combined with an on-demand provisioning mechanism relying on a pay- per-use business model. These new features have a direct impact on information technology (IT) budgeting but also affect traditional security, trust and privacy mechanisms. The advantages of cloud computing - its ability to scale rapidly, store data remotely, and share services in a dynamic environment - can become disadvantages in maintaining a level of assurance sufficient to sustain confidence in potential customers. Some core traditional mechanisms for addressing privacy (such as model contracts) are no longer flexible or dynamic enough, so new approaches need to be developed to fit this new paradigm. In this chapter we assess how security, trust and privacy issues occur in the context of cloud computing and discuss ways in which they may be addressed.

关键词：云计算；隐私；安全；信任

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In the IT Outsourcing industry, a complex transition and transformation process is required for on-boarding large enterprise clients. The process begins after the client signs a contract, and ends when steady-state operation is attained by the service provider. Large outsourcing deals may last several years, involve several hundred million dollars, and are traditionally highly customized to the client. In this paper, we provide recommendations for a governance framework that can manage the on-boarding stage of large, customized deals. There are no existing governance frameworks that work well at the scale and diversity observed in these deals. The framework must standardize a set of processes to direct, control, and measure on-boarding activities and enable a governance organization to create and maintain a single data, process and program management instance for each client. It must also maintain a well-defined and comprehensive view of the key entities in the transition and transformation process, and their relationships. These entities may include projects, people, roles and responsibilities, process metrics, services, and the multiple internal and partner organizations and their operational level agreements (OLAs). Finally, the framework must improve repeatability across service deals, enforce adoption of best practices that are distilled from historical deals, and better avoid known problems and issues.

关键词：治理框架；过渡和转变； IT外包

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关键词：分配问题；不完善匹配；最低成本；不平衡的二分图；重量缩放算法

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This paper examines historical releases of Sendmail, Postfix, Apache httpd and OpenSSL by using static source code analysis and the entry-rate in the Common Vulnerabilities and Exposures dictionary (CVE) for a release, which we take as a measure of the rate of discovery of exploitable bugs. We show that the change in number and density of issues reported by the source code analyzer is indicative of the change in rate of discovery of exploitable bugs for new releases - formally we demonstrate a statistically significant correlation of moderate strength. The strength of the correlation is an artifact of other factors such as the degree of scrutiny: the number of security analysts investigating the software. This also demonstrates that static source code analysis can be used to make some assessment of risk even when constraints do not permit human review of the issues identified by the analysis. We find only a weak correlation between absolute values measured by the source code analyzer and rate of discovery of exploitable bugs, so in general it is unsafe to use absolute values of number of issues or issue densities to compare different applications or software. Our results demonstrate that software quality, as measured by the number of issues, issue density or number of exploitable bugs, does not always improve with each new release. However, generally the rate of discovery of exploitable bugs begins to drop three to five years after the initial release. Copyright ACM 2012. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in CCS'12, 19th ACM Conference on Computer and Communications Security, October 16 - 18, 2012, Raleigh, North Carolina, USA.

关键词：安全；防护；检测；静态分析；风险分析；开源软件

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We present the results of a multi-phase study to optimize strategies for generating personalized article recommendations at the Forbes.com web site. In the first phase we compared the performance of a variety of recommendation methods on historical data. In the second phase we deployed a live system at Forbes.com for five months on a sample of 82,000 users, each randomly assigned to one of 20 methods. We analyze the live results both in terms of click- through rate (CTR) and user session lengths. The method with the best CTR was a hybrid of collaborative-filtering and a content-based method that leverages Wikipedia-based concept features, post- processed by a novel Bayesian remapping technique that we introduce. It both statistically significantly beat decayed popularity and increased CTR by 37%.

关键词：个性化；推荐系统；协同过滤；内容分析；实时用户试用

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SRI International, in collaboration with Professor Jing Shih of the University of California- Riverside (UCR), Professor Nathan Newman of Arizona State University (ASU), and Professor Edmond Nowak of the University of Delaware (UD), has been funded (from June 2009 through September 2012) through ONR Contract (N00014-09-C-0292) to fabricate a magnetic sensor with a half- metallic ferromagnet (FM) contact and polymers and demonstrate its sensing capability. In this study we considered La0.7Sr0..3MnO3 (LSMO) and CoFe50Al25Si25 (CFAS) alloys for half-metallic FM contacts and poly(3,4- ethylenedioxythiophene) (PEDOT) and poly-3(hexylthiophene) (P3HT) for polymers. Room temperature operation of this ultrasensitive device requires half-metallic ferromagnetic contacts with high Curie temperature (Tc), ultra- lowmobilitypolymer with very high doping density, nano-scale trenches, successful charge and spin injection into polymers from FM half-metal contacts, and spin precession in polymers. The FM films for vertical and lateral devices were grown at UCR and ASU, respectively. Most device fabrication was carried out at SRI, while magnetic and noise measurements were performed at ASU and UD.

关键词：光机电；传感器；自旋进动；磁传感

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We present results on phonon quasidiffusion and Transition Edge Sensor (TES) studies in a large, 3-inch diameter, 1-inch thick (100) high purity germanium crystal, cooled to 50 mK in the vacuum of a dilution refrigerator, and exposed with 59.5 keV gamma-rays from an Am-241 calibration source. We compare calibration data with results from a Monte Carlo which includes phonon quasidiffusion and the generation of phonons created by charge carriers as they are drifted across the detector by ionization readout channels. The phonon energy is then parsed into TES based phonon readout channels and input into a TES simulator.

关键词：光机电；传感器；检测器

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