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The separate development between the storage system and scientific application has hidden most of internal implementation strategies of the storage system from the scientific application designers. This would worsen the existing I/O bottleneck problem ...

In this paper, a class of two-level difference schemes including a parameter are discussed for the numerical solution of one-dimensional telegraphic equations with source terms, where ? ? [0,4]. The truncation errors of these schemes are O (k2 + h4) if ?...

Forecasting the volume of foreign trade is important to policy formulation for local governments. This study proposes a machine-learning algorithm as a forecasting tool that is based on Rough sets and Shannon entropy. This study uses historical data ...

In this paper, by constructing a new high-order parallel alternating group iterative algorithm, we solve the two point boundary value problem. The main method is to dividing the system of different equations into a set of subsystem which can be solved ...

In this paper, the linear mapping from the constrained solution sets to their independent parameter spaces is constructed, and its properties are studied. Based on these properties and the classical algorithm LSQR for solving the (unconstrained) LS ...

In order to tackle the problems of current recommendation system, such as lack of domain knowledge and limited applications in e-commerce field, a domain-driven recommendation method based on binary data is proposed in this paper. By introducing the ...

For two given matrices A and B, the extremum of the Frobenius norm of matrix B-XA is established when X is running all over the unitary matrices. By using the technique of singular value decomposition, the extremum of the Frobenius norm matrix is ...

This paper brings option trading into perishable products supply chain, with high demand uncertainties, long production lead-times and short selling period, and explores the application of independent option in flexible contract. Based on these, it ...

Ren-chang Li has obtained more bounds on eigenvalue variation in [1]. Theorem 2.3 in [1] gives some bounds on eigenvalue variation of two matrices. The bounds are available for the diagonalizable matrices with nonnegative eigenvalues. We obtain that the ...

Two classes of new nonlinear conjugate gradient methods are proposed in order to avoid the drawbacks of FR and CD. By induction and contradiction, we prove the sufficient descent properties without any line search and the global convergence with the ...

The use of optimization in a simulation-based design of automotive, aerospace and consumer products has become a common trend today. Designers are faced with the continuous challenge of reducing manufacturing costs and design cycle times while improving ...

Low-thrust transfers in the central gravitational field involve a large number of orbital revolutions, which poses a real challenge to trajectory optimization. This article uses an orbital averaging technique based on Fourier series Expansion to ...

In our previous work, an undulating robotic fin is developed, the design of which is inspired by the pectoral fin of stingray. A Computational Fluid Dynamics (CFD) based comparison of optimal thrust and efficiency generation among four typical fin ...

This article proposes a model to analyze the transporttion networks with heterogeneous agents, who contribute to congestion differently. This is the generalization of homogeneous model. It turns out that the optimum from social planning is high ...

In order to handle the hypercompetitive and volatile market, an innovative design framework is presented in this paper to make the simulation system flexible, extensible and reusable. The simulation model is divided into three sub-models: the core model ...

A novel phase retrieval method for hard X-ray in-line phase contrast imaging is presented in this paper, which is based on a parallel hybrid genetic algorithm. Different from the tradition numerical algorithm, our approach is a parallel hybrid ...

IPO under pricing is always the focus of finance theory and practice. According to behavioral finance, this paper explores the inherent process of IPO under pricing from microscopic investor behavior and market environment by constructing an agent-based ...

The fast multipole virtual boundary element method (VBEM) is used to simulate the 2-D elastic solid containing inclusions in this paper. Basic idea of fast multipole method (FMM) is changing the computational structure to enhance the speed and reduce ...

In this study a trimaran hull form has been investigated in order to predict the fluid flow of the ship using Computational Fluid Dynamics (CFD). Calculations for total resistance are carried out for Froude numbers in the range of 0.14 to 0.75. ...

To evaluate the predictive capabilities of K-E turbulence models, three turbulence models (the standard K-E model, the RNG K-E model and the Realizable K-E model) in conjunction with a fully-developed boundary condition and a standard wall function were ...

We present a group update algorithm based on truncated trust region strategy for large-scale sparse unconstrained optimization. In large sparse optimization computing the whole Hessian matrix and solving exactly the Newton-like equations at each ...

Conjugate gradient method is one of the most useful methods for solving unconstrained optimization problem. In this paper, we propose a hybrid conjugate gradient method for unconstrained optimization based on the Hestenes-Stiefel and Dai-Yuan conjugate ...

The restricted shortest path problem (RSP) is considered as one of the key components of the Quality of Service (QoS) routing. It is well-known that this problem is NP-hard. A simple and fast algorithm for solving RSP is presented in this paper. The ...

In this paper, basing on the existence of the global solution for a class of partial differential system with and without impulses, impulsive synchronization of the system is investigated. Sufficient conditions for the solution of impulsive error system ...