We propose a mathematical approach based on a multi-stage stochastic mixed-integer programming for lumber supply chain tactical planning under demand and supply uncertainty. Due to its large size for real instances, w...
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We propose a mathematical approach based on a multi-stage stochastic mixed-integer programming for lumber supply chain tactical planning under demand and supply uncertainty. Due to its large size for real instances, we decouple it into two sub-models inspiring from the common practice in industry. Each sub-model is then solved by a Scenario Cluster Decomposition (SCD) method. In order to speed-up solving cluster subproblems, a Lagrangian-Relaxation based heuristic and a Variable Fixing algorithm are embedded into the SCD algorithm. Computational experiments on a real-size lumber supply chain clearly indicate the effectiveness of the proposed solution approaches in terms of CPU time and quality of solutions.
Recently, there were numerous ballet posture education systems using various IT techniques. We can divide these systems into three categories, such as wearable devices based systems;Kinect based systems;and other syst...
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Micro-reviews are a considered as a source of review content in the social media. In this work, we study the micro-reviews, and use them to solve the problem of review selection. We introduce a novel formulation of re...
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Variability and uncertainty associated withthe growth of variable renewable generation, particularly wind power, introduce significant challenges to grid system operators. this paper proposes a day-ahead chance const...
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the present study utilizes VirtualBox virtual environment technology to develop the Personal, small size, Big Data platform that can effectively replicate a VM Hadoop system and provides an environment for developers ...
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ISBN:
(纸本)9781467390057
the present study utilizes VirtualBox virtual environment technology to develop the Personal, small size, Big Data platform that can effectively replicate a VM Hadoop system and provides an environment for developers to easily design and implement Hadoop Map/Reduce programming. this study also performs the benchmark by using the VM Hadoop, small-cluster Hadoop, and NCHC's large-scale Hadoop cluster, Braavos. the benchmark results show that the VM Hadoop is an ideal platform for the Map/Reduce code development and testing purpose, and the Braavos Hadoop cluster is the most appropriate for production runs. Moreover, based on the standard WordCount example, the computing time of Braavos Hadoop cluster is 232 times faster than the small-cluster Hadoop. In addition, an engineering example, the image recognition of flow monitoring, is given to illustrate the way of big image data analytics in the Hadoop system. Finally, the VM Hadoop, in term of a Big Data development platform, is ready for users to download. the first author of this paper would like to give a demonstration for the proposed VM Hadoop system as well as an engineering application.
the double-digit growth of the number of mobile broadband subscribers has resulted in an exponential growth of mobile traffic in recent years. A major part of mobile traffic is the duplicate downloads of popular conte...
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the paper proposes a Debris tracking system that associates Debris in water bodies in sequential video frames and gives the movement of debris between the frames. Hence we can identify and track Debris in water bodies...
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the advent of native mobile technologies particularly advances in the Mobile Operating Systems (OS), popularly among Android, Windows Mobile OS, iOS and their acceptance as an alternative to existing browser based acc...
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the SmartDriver framework is an open extension of Selenium WebDriver framework aimed at decreasing implementation and maintenance costs of automated tests. It composes from two principal modules working in synergy. th...
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ISBN:
(纸本)9781509037667
the SmartDriver framework is an open extension of Selenium WebDriver framework aimed at decreasing implementation and maintenance costs of automated tests. It composes from two principal modules working in synergy. the structuring module ensuring three layer architecture of reusable objects, page objects and tests. Besides decreasing of implementation and maintenance costs, this module allows to create tests which can be easily read by testers or business analysts without previous extensive programming knowledge. the maintenance module then decreases time needed to update the scripts. When a test fails when locating a page element which does not exist due to obsolete test script, SmartDriver automatically analyzes if the element has been just moved to another place in the page. If so, it gives this information to the script developer.
High performance cluster need to consume lots of powerHigh power consumption is an important factor that restricts the development of system in both technical and economic waysthe power control technology has become a...
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ISBN:
(纸本)9781510828087
High performance cluster need to consume lots of powerHigh power consumption is an important factor that restricts the development of system in both technical and economic waysthe power control technology has become a hot issue in the area of high performance computing systems and data center managementFor different programs, reducing power consumption can exert different influence on performanceIn order to minimize the losses of performance, adjustments of power consumption should be made based on the characteristics of programsthis paper aims at solving the problem of power control of nodes in high performance computing systemPCPI(Power Control programming Interface) is designed to acquire real-time power consumption state and to provide function of dynamic power consumption control, so as to make effective power adjustments according to the operating characteristics of programsIn this way, power consumption can be reduced while the losses of performance are minimized.
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