编制评价地图聚类中确定分类数目的方法

本文探讨了在聚类分析中采用直观分析法和类间距离近似计算法对分类数目合理性的检验估计的方法,并应用数据实例具体介绍检验估计的步骤,以提供在编制评价类型或区划地图时确定分类数目的参考。

心率变异性信号的检测与仿真分析

心率变异性信号易受干扰而导致严重失真,为了提升心率变异性信号检测系统的抗干扰性能和检测效率,更有效地“复原”失真的数据点,设计了基于奇异函数法和马尔可夫链预测法的心率变异性信号联合检测算法,利用样本序列进行了仿真实验,并从样本序列截取数据长度(m)和分类数目(k)两个维度进行分析,仿真结果表明m和k对算法的时间复杂度(O)以及预测准确度(q)有极为重要的影响。在实际工程应用中,可参考仿真结果对系统的参数进行设定,从而实现检测速度和准确率的兼顾与平衡。

一维有序数据的最优分割

本文以数据类内误差最小且类间差异最大为原则，提出一维有序数据最优分割方法，并根据分类误差的变化速率确定分类数目。同时用该法对全国３４个县级医院的综合效益进行分类。

司马谈“六家”说的方法论意义管窥

司马谈率先明确提出“六家”概念,并对其中各家的理论内涵作了明确界定,迈出了先秦两汉学术发展的关键一步。司马谈“六家”说的继承与创新,尤其在“法家”提法及“数目分类法”上的继承与创新仍有继续探讨的空间。以西学为参照系对司马谈“六家”说加以考察后,发现司马谈的“六家”说运用了“综合”与“检验”的方法,体现了“主导”与“核心”的观念,具有构建“理想世界”与组建“概念装置”的色彩,蕴含着强烈的“系统”观念,为古典学方法论研究提供了典型样本。

Recent Data on Birds of Kinshasa in Democratic Republic of Congo

The study aimed at understanding the current avifauna characteristics, like composition, species diversity and evolution, in the city of Kinshasa. The study was conducted from 2006 to 2014, using observation, photography and Japanese nets. Results of the study indicate that there are 131 species of birds, which represents 40 families and 16 orders. Avifauna of Kinshasa represents 11% of species of the all country. Among those species, 12 are new. Passerines are the most, representing 86 species and 21 families, and are the most diversified. Few species have extended their geographical distribution and some are migratory. Overtime, avian fauna of Kinshasa region has undergone a lot of changes in its composition and diversity. Horizontal extension of the city associated with the consecutive various changes of the habitats seems to be the principal factors which modulate those characteristics. However, the study found that the majority of these species were under precarious statute of conservation.