参数估计在目标跟踪中应用仿真研究

本文采用最小二乘参数估计的方法在已知观测数据的基础上对假定的目标的初始位置和速度进行了估计，从而对目标进行跟踪仿真，并对跟踪性能进行了分析。     

Multivariate adaptive regression splines based simulation optimization using move-limit strategy

This paper makes an approach to the approximate optimum in structural design, which combines the global response surface (GRS) based multivariate adaptive regression splines (MARS) with Move-Limit strategy (MLS). MARS is an adaptive regression process, which fits in with the multidimensional problems. It adopts a modified recursive partitioning strategy to simplify high-dimensional problems into smaller highly accurate models. MLS for moving and resizing the search sub-regions is employed in the space of design variables. The quality of the approximation functions and the convergence history of the optimization process are reflected in MLS. The disadvantages of the conventional response surface method (RSM) have been avoided, specifically, highly nonlinear high-dimensional problems. The GRS/MARS with MLS is applied to a high-dimensional test function and an engineering problem to demonstrate its feasibility and convergence, and compared with quadratic response surface (QRS) models in terms of computational efficiency and accuracy.     

Structuring a Successful Instruction Internship

Internships and practicums allow MLS students the opportunity to gain knowledge of and experience with information literacy instruction. These experiences can supplement the theoretical information learned in graduate information literacy classes. Yet, the literature on structuring and creating a successful internship experience is sparse. This article reports on a survey of interns who completed an instruction internship at George Washington University's (GWU) Gelman Library and provides seven recommendations for creating a successful internship program.     

Evaluation of Library Resources in the Field of Economics:

Of the thousands of mass-market movies now available on video tape, only 64 (at the time this is being written) have been awarded the coveted Oscar as Best Picture of the Year. A library with a limited budget that wishes to provide a wide variety of high quality movies for patrons should look to the industry's top award-winners to give excellent value while simultaneously offering an overview of popular culture from low-budget, small-screen silent, black and white movies to multi-million dollar, wide-screen Technicolor extravaganzas.