论文标题
表示异质性
Representation Heterogeneity
论文作者
论文摘要
语义异质性通常被理解为目标现实表示，由独立各方，不同数据库，模式和/或数据建模时的差异。我们认为，仅仅是必要的差异的编码不足以应对代表性异质性问题，因为也有必要编码表现出这种差异的统一基础。为此，本文从表示统一和表示多样性的共同概念方面介绍了表示异质性的概念。当两个异质表示以相同的目标现实模型，否则表示多样性时，我们就会有代表统一。反过来，本文还强调了这两个概念如何在任何表示的两层（即语言和知识）中实例化。
Semantic Heterogeneity is conventionally understood as the existence of variance in the representation of a target reality when modelled, by independent parties, in different databases, schemas and/ or data. We argue that the mere encoding of variance, while being necessary, is not sufficient enough to deal with the problem of representational heterogeneity, given that it is also necessary to encode the unifying basis on which such variance is manifested. To that end, this paper introduces a notion of Representation Heterogeneity in terms of the co-occurrent notions of Representation Unity and Representation Diversity. We have representation unity when two heterogeneous representations model the same target reality, representation diversity otherwise. In turn, this paper also highlights how these two notions get instantiated across the two layers of any representation, i.e., Language and Knowledge.
