Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What is relational knowledge discovery?

April 26, 2017Discovery knowledge Relational

0

Posted

What is relational knowledge discovery?

1 Answer

0

Posted

Knowledge discovery is the extraction of non-trivial, previously unknown, and useful information from data. Relational knowledge discovery is knowledge discovery in relational data. For the purposes of this discussion, a relational data structure is a labeled, directed graph in which objects from the domain of discourse are connected by links that represent relationships between pairs of objects. Both objects and links can have an arbitrary number of attributes. Figure 1 shows a fragment of a relational data structure from the cinematic domain. The objects include movies (e.g., Network and The Thomas Crown Affair), people (Faye Dunaway), studios (MGM), and awards (Oscars). The links include (among others) the ActorIn relationship between a person and a movie; the StudioOf relationship between a studio and a movie; and the Nominated relationship between a movie or a person and an award.