Abstract principal component analysis

We present the basic idea of abstract principal component analysis(APCA)as a general approach that extends various popular data analysis techniques such as PCA and GPCA.We describe the mathematical theory behind APCA and focus on a particular application to mode extractions from a data set of mixed temporal and spatial signals.For illustration,algorithmic implementation details and numerical examples are presented for the extraction of a number of basic types of wave modes including,in particular,dynamic modes involving spatial shifts.

基于语义映射及组件化方法的促销规则模型研究

针对电商促销规则形式繁多、结构复杂等问题,提出一种基于语义映射结合组件化方法的促销规则模型,通过建立业务语境到规则脚本的语义映射、提供组件化拓展能力、抽象计算接口等方法 ,在充分简化规则实现过程的同时,提高规则的复用能力。经过模型实例证明,使用该模型可以低代码方式快速完成电商促销规则的迭代更新,降低业务规则所需要的时间和成本。