According to the characteristics of real data environment, this paper presents a kernel information model containing product data object, object relationship and the processes used to handle data.

本文根据产品数据环境这一特点，提出数据对象、对象关系以及处理数据的过程是产品数据管理的核心内容。

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Kernel Methods are concerned with mapping input data into a higher dimensional vector space where some classification or regression problems are easier to model.

核函数方法关心的是如何把输入数据映射到一个高维度的矢量空间，在这个空间中，某些分类或者回归问题可以较容易地解决。

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Kernel Methods are concerned with mapping input data into a higher dimensional vector space where some classification or regression problems are easier to model.

核函数方法关心的是怎样把输入数据映射到一个高维度的矢量空间，在这个空间中，某些分类或者回归问题可以较容易地解决。

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