原子轨道杂化态与非过渡元素的立体化学

本文提出公式化的方法确定分子的杂化轨道数,进而推断分子的杂化轨道类型,确定主族元素共价分子的成键情况和几何构型,并且探讨了影响杂化态的因素。     

ATM网络中综合业务漏桶算法的研究

对综合业务的漏桶算法进行了分析，得出了实时业务和非实时业务的漏桶性能（分组丢失率，平均时延）与输入业务统计特性及漏桶参数之间的关系．计算机模拟结果表明它与理论分析的一致性。     

自适应多波束形成的算法

论述了一种窄带和宽带多波束形成的算法,这种算法所依据的准则是在波束满足指向和振幅要求的约束条件下使阵列输出功率最小。对于 N 元阵列,可同时形成 N-1个独立波束。根据对约束条件的不同控制,利用这种算法可实现波束扫描,形成宽波束、实现干扰对消或旁瓣对消等。同时还给出了所述算法的计算机模拟结果,结果表明所述算法是很有效的。     

大脑皮层成像的一种新算法

大脑皮层成像技术是近年出现的较有前景的脑电三维成像方法。本文通过对其成像过程物理实质的分析，提出了新的成像计算公式，使计算过程得到简化，计算精度有所提高。     

遗传算法在活动网络有限资源分配问题中的应用

有限资源合理分配是网络计划中一个复杂的组合优化问题。应用遗传算法,本文建立了描述有限资源合理分配问题的染色体结构和适应度函数,设计了问题的遗传运算,并举例说明了该遗传算法的有效性。这一工作对于处理工程项目施工安排问题具有重要意义。     

改进的多目标多传感器数据融合相关算法

数据融合是利用计算机对数据进行一定处理，得出目标状态及势态估计的多层次多平台过程。详细讨论了对目标的跟踪算法，此算法不仅对多目标，而且对新出现目标和机动目标均能进行识别和跟踪。     

Analysis of Irish third-level college applications data

Summary.  The Irish college admissions system involves prospective students listing up to 10 courses in order of preference on their application. Places in third-level educational institutions are subsequently offered to the applicants on the basis of both their preferences and their final second-level examination results. The college applications system is a large area of public debate in Ireland. Detractors suggest that the process creates artificial demand for 'high profile' courses, causing applicants to ignore their vocational callings. Supporters argue that the system is impartial and transparent. The Irish college degree applications data from the year 2000 are analysed by using mixture models based on ranked data models to investigate the types of application behaviour that are exhibited by college applicants. The results of this analysis show that applicants form groups according to both the discipline and the geographical location of their course choices. In addition, there is evidence of the suggested 'points race' for high profile courses. Finally, gender emerges as an influential factor when studying course choice behaviour.     

岩体分级的进化支持向量机方法研究

将进化支持向量机方法应用到岩体的工程分级中，提出了岩体工程分级的进化支持向量机方法．该方法将遗传算法和支持向量机有机结合，充分发挥二者各自的优点．结果表明这种方法具有很好的精度，达到了较好的分级效果．     

略论音乐能力禀赋与环境的统一

音乐能力禀赋有两个方面的因素 :生物的因素和社会的因素 ,二者统一于人类个体。而具有决定作用的 ,主要靠后天环境的影响     

Local Linear Additive Quantile Regression

Abstract.  We consider non-parametric additive quantile regression estimation by kernel-weighted local linear fitting. The estimator is based on localizing the characterization of quantile regression as the minimizer of the appropriate 'check function'. A backfitting algorithm and a heuristic rule for selecting the smoothing parameter are explored. We also study the estimation of average-derivative quantile regression under the additive model. The techniques are illustrated by a simulated example and a real data set.