PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Representation of irrelevance relations by annotated graphs

Wybrane pełne teksty z tego czasopisma
Języki publikacji
EN
Abstrakty
EN
Irrelevance relations are sets of statements of the form: given that the `value' of Z is known, the `values' of Y can add no further information about the `values' of X. Undirected Graphs (UGs), Directed Acyclic Graphs (DAGs) and Chain Graphs (CGs) were used and investigated as schemes for the purpose of representing irrelevance relations. It is known that, although all three schemes can approximate irrelevance, they are inadequate in the sense that there are relations which cannot be fully represented by anyone of them. In this paper annotated graphs are defined and suggested as a new model for graphical representation. It is shown that this new model is a proper generalization of the former models: any irrelevance relation that can be represented by either one of the previous models can also be represented by an annotated graph, and there are relations that can be represented by an annotated graph but cannot be represented by either one of the former models. The question of whether this new model is powerful enough to represent all the irrelevance relations, as well as some other related questions, is still open.
Wydawca
Rocznik
Strony
149--199
Opis fizyczny
bibliogr. 8 poz.
Twórcy
autor
autor
autor
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS1-0008-0007