1,721,117 research outputs found
Cost-Efficient Scheduling of Elastic Processes in Hybrid Clouds
No full textCloud computing is becoming increasingly important for executing business processes. This development contributes to a novel class of Business Process Management Systems, called eBPMS, that inherit elasticity from cloud computing.
The aim of eBPMS is to improve the efficiency of process enactment, in particular regarding scalability and cost-efficiency. However, there is hardly any research that investigates scheduling for eBPMS so far. Against this background, we design an elastic scheduling approach for eBPMS and a corresponding formal problem definition in order to evaluate its data transfer capabilities - this is especially important for hybrid cloud environments. Through extensive evaluations, we are able to show that our approach reduces the total cost by a considerable share
8th IEEE International Conference on Cloud Computing, CLOUD 2015, New York City, NY, USA, June 27 - July 2, 2015
No full textSystem And Method For Preventing Race Condition Vulnerability
No full textA method for identifying vulnerable system call pairs is disclosed. The method is based on a model for identifying Time-Of-Check-To-Time-Of-Use (TOCTTOU) problem (called STEM), which enumerates the potential file system call pairs (called exploitable TOCTTOU pairs) that form the check/use steps. The system function calls are classified into a plurality of predefined classes and pairs of the function calls are formed according to predefined criteria, where the function calls within a pair are associated with the same file invariant.Georgia Tech Research Corporatio
8th IEEE International Conference on Cloud Computing, CLOUD 2015, New York City, NY, USA, June 27 - July 2, 2015
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Computer Program, Method, And Information Processing Apparatus For Analyzing Performance Of Computer System
No full textIn an information processing apparatus, a comparing unit determines whether the response time of each transaction falls within an acceptable time range that is specified previously. For each time window, a first calculation unit calculates a load of processes executed in parallel by the servers in a specified tier, based on transaction data of individual transactions. Further, a second calculation unit calculates a total progress quantity in each time window, based on the transaction data of transactions whose respective response times are determined to fall within the acceptable time range. A determination unit determines a specific load value as a threshold at which the total progress quantity begins to decrease in spite of an increase of the load.Fujitsu LimitedThe Georgia Tech Research Corporatio
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Information Processing Apparatus And Load Control Method
No full textAn information processing apparatus includes a processor that is capable of switching a performance level to one of a plurality of performance levels with different power consumption, and a storage unit that stores a program for controlling the performance level of the processor. The processor executing the program detects the periodicity of load variation of the information processing apparatus, and changes, according to the periodicity of the load variation, a determination interval for determining whether to switch the performance level of the processor.Fujitsu LimitedThe Georgia Tech Research Corporatio
Asset-centric security-aware service selection:cloud storage and app markets
Get PDFCatering for the runtime security of users and their assets (e.g. files, accounts, etc.) in service oriented environments is a challenging problem. We motivate the need for an adaptive framework that selects online services according to the runtime security requirements and cost constraints of assets. We report on a market-inspired approach (i.e. reversed Posted-Offer auction) that satisfies multiple, heterogeneous requests for online services in environments with shared and scarce resources. The solution is tested on the specific area of Cloud storage services
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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