Java bytecode instrumentation is a widely used technique, especially for profiling purposes. In order to ensure the instrumentation of all classes in the system, including dynamically generated or downloaded code, ins...
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ISBN:
(纸本)9780769528809
Java bytecode instrumentation is a widely used technique, especially for profiling purposes. In order to ensure the instrumentation of all classes in the system, including dynamically generated or downloaded code, instrumentation has to be performed at runtime. the standard offers some mechanisms for dynamic instrumentation, which however either require the use of native code or impose severe restrictions on the instrumentation certain core classes of the JDK these limitations prevent several instrumentation techniques that are important for efficient, calling context-sensitive profiling. In this we present a generic bytecode instrumentation framework that goes beyond these restrictions and enables the customized, dynamic instrumentation of all classes in pure Java. Our framework addresses important issues, such as bootstrapping an instrumented JDK, as well as avoiding measurement perturbations due to dynamic instrumentation or execution of instrumentation code. We validated and evaluated our framework using an instrumentation for exact profiling which generates complete calling context trees of various platform-independent dynamic metrics.
We propose an automatic and dynamic generation of GPU programs to mix renderings and enhance informations for visualization of high scale scenes. Mixing different kinds of rendering techniques in the same frame enhanc...
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ISBN:
(纸本)9780889866911
We propose an automatic and dynamic generation of GPU programs to mix renderings and enhance informations for visualization of high scale scenes. Mixing different kinds of rendering techniques in the same frame enhances pertinent informations on 2D images or 3D scenes. this is achieved in one pass because one and only one GPU program is used to render the scene. New rendering techniques can be imported and we present a method to automatically build and dynamically updated the program used by the GPU. For a given 3D scene or a 2D image, the user chooses key points, imports rendering techniques described as GPU programs and our model constructs one GPU program that render the scene withthese different rendering techniques. the key points, the rendering techniques used, the camera position can be interactively changed by the user. In this paper we present the model used to mix renderings, a method to automatically generate and dynamically update GPU programs. the images produced by our system are presented and results are discussed.
Alternative splicing plays a prominent role in eukaryotic gene regulations that allow a single gene to generate the multiple mRNA products. the recent advent of GeneChip Human Exon 1.0 ST Array enables us to measure t...
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A major bottleneck in the evolutionary design of electronic circuits is the problem of scale. this refers to the very fast growth of the number of gates, used in the target circuit, as the number of inputs of the evol...
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ISBN:
(数字)9783540746263
ISBN:
(纸本)9783540746256
A major bottleneck in the evolutionary design of electronic circuits is the problem of scale. this refers to the very fast growth of the number of gates, used in the target circuit, as the number of inputs of the evolved logic function increases. Another related obstacle is the time required to calculate the fitness value of a circuit. In this paper, We propose a new means (Gene Expression programming) for designing electronic circuits and introduces the encoding of the circuit as a chromosome, the genetic operators and the fitness function. From the case studies show this means has proved to be efficient to the electronic circuit and the evolution speed is fast. the experiments results show that we have attained the better results.
AC based nodal pricing method makes market rule less transparent and affects market decisions on risk and opportunity in short-run and long-run periods. therefore, AC based nodal pricing formulation is simplified into...
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ISBN:
(纸本)9783540725879
AC based nodal pricing method makes market rule less transparent and affects market decisions on risk and opportunity in short-run and long-run periods. therefore, AC based nodal pricing formulation is simplified into DC based nodal pricing formulation, which maximizes total social welfare withthe condition of satisfying Kirchhoff's laws and other operational constraints in modified DC optimal power flow model. then, a simple but practical linear programming based nodal pricing method, which can be applied to solve market clearing mode with piecewise constant supply and demand curves, is proposed! the proposed method is tested on IEEE 30 bus system. Test results show that it can avoid premature and divergent phenomenon, which always occurs in the solution of AC based nodal pricing formulation, and has potential application in competitive electricity market.
Data mining and knowledge discovery has made great progress during the last fifteen years. As one of the major tasks of data mining, classification has wide business and scientific applications. Among a variety of pro...
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ISBN:
(纸本)9783540725879
Data mining and knowledge discovery has made great progress during the last fifteen years. As one of the major tasks of data mining, classification has wide business and scientific applications. Among a variety of proposed methods, mathematical programming based approaches have been proven to be excellent in terms of classification accuracy, robustness, and efficiency. However, there are several difficult issues. Two of these issues are of particular interest of this research. the first issue is that it is challenging to find optimal solution for large-scale dataset in mathematical programming problems due to the computational complexity. the second issue is that many mathematical programming problems require specialized codes or programs such as CPLEX or LINGO. the objective of this study is to propose solutions for these two problems. this paper proposed and applied mathematical programming model to classification problems to address two aspects of data mining algorithm: speed and scalability.
Based on interactive fuzzy goal programming, a model is introduced for extended hub-and-spoke regional port transportation network optimization problem where one of the objective functions is considered as a non-linea...
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ISBN:
(纸本)9783540725893
Based on interactive fuzzy goal programming, a model is introduced for extended hub-and-spoke regional port transportation network optimization problem where one of the objective functions is considered as a non-linear function. the proposed model considers the imprecise nature of the input data and assumes that each objective function has a fuzzy goal, and aims at jointly minimizing the total costs including the sailing cost and handling cost as well as the total transit times consisting of sailing time and handling time. Meanwhile it optimizes the following factors: transportation quantities via a hub port from an original port to a destination port, transportation quantities directly from an original port to a destination port. the solution procedure to the proposed model is then presented. At last, a numerical example is given to demonstrate the effectiveness of the proposed model and evaluate the performance of the solution procedure.
the objective of the TARGET VISITATION PROBLEM is to determine a path for an unmanned aerial vehicle that begins at a point of origin and needs to visit several targets before returning to its starting point. An optim...
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ISBN:
(纸本)9783540743545
the objective of the TARGET VISITATION PROBLEM is to determine a path for an unmanned aerial vehicle that begins at a point of origin and needs to visit several targets before returning to its starting point. An optimal visitation sequence is one which minimizes the total distance traveled and maximizes the utility of the visitation order. this utility measure is defined for each pair of targets and represents the relative value of visiting a particular target before another. In this chapter, we present the results of a preliminary study investigating the effectiveness of a genetic algorithm for the TARGET VISITATION PROBLEM. the encoding scheme is based on random keys. Numerical results are presented for a set of randomly generated test problems and compared withthe optimal solutions as computed by a commercial integer programming package.
It is very important to organize streams well to make stream programs take advantage of the parallel computing and memory system of the stream processor effectively, especially for scientific stream programs. In this ...
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ISBN:
(纸本)9783540729044
It is very important to organize streams well to make stream programs take advantage of the parallel computing and memory system of the stream processor effectively, especially for scientific stream programs. In this paper, after analyzing typical scientific programs, we present and characterize two methods to optimize the stream organization: stream reusing and stream transpose. Several representative scientific stream programs with and without our optimization are performed on a stream typical processor simulator. Simulation results show that these methods can improve scientific stream program performance greatly.
the proceedings contain 25 papers. the special focus in this conference is on Cooperative Control and Optimization. the topics include: Cooperative Vision Based Estimation and Tracking Using Multiple UAVs;waypoint sel...
ISBN:
(纸本)3540743545
the proceedings contain 25 papers. the special focus in this conference is on Cooperative Control and Optimization. the topics include: Cooperative Vision Based Estimation and Tracking Using Multiple UAVs;waypoint selection in constrained domains (for cooperative systems);cooperative formation flying in autonomous unmanned air systems with application to training;Virtual leader based formation control of multiple unmanned ground vehicles (UGVs): Control design, simulation and real-time experiment;cooperative control of multiple agents and search strategy;Real-time optimal time-critical target assignment for UAVs;sequential inspection using loitering;distributed cooperative systems with human operator-in-the-loop;decentralized extremum-seeking control of nonholonomic vehicles to form a communication chain;out-of-order sigma-point kalman filtering for target localization using cooperating unmanned aerial vehicles;an adaptive sequential game theoretic approach to coordinated mission planning for aerial platforms;characteristics of the distribution of hamming distance values between multidimensional assignment problem solutions;robust cooperative visual tracking: A combined nonlinear dimensionality reduction/robust identification approach;a Lagrangian-based algorithm for a combinatorial motion planning problem;a random keys based genetic algorithm for the target visitation problem;cooperative rendezvous between active autonomous vehicles;multi-cumulant control for zero-sum differential games: Performance-measure statistics and state-feedback paradigm;decentralized cooperative optimization for multi-criteria decision making;simultaneous localization and planning for cooperative air munitions;Second-order cone programming (SOCP) techniques for coordinating large-scale robot teams in polygonal environments;UAV splay state configuration for moving targets in wind;a risk-based approach to sensor resource management;constructing optimal cyclic tours for planar exploration and
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