This paper studies a model of diffusion in a fixed, finite connected network. There is an interested party that knows the quality of the product or idea being propagated and chooses an implant in the network to influence other agents to buy or adopt. Agents are either “innovators”, who adopt immediately, or rational. Rational consumers buy if buying rather than waiting maximizes ∗This is a subs...

During the last few years, researchers and developers had proposed various trials to put a standard conceptual design of ETL processes in data warehouse. These trials try to represent the main mapping activities at the conceptual level. Due to limitations of the previous trials, in this paper 1 We propose a model for conceptual design of ETL processes and we call it entity mapping diagram (EMD)...

this ability in fuzzy uml, practically leaves the customers and market’s need without response in this important and vital area. here, the available sequence diagrams in fuzzy uml will map into fuzzy petri net. however, the formal models ability will be added to the semi-formal fuzzy uml. this formalization will add the automatic processing ability to the semi-formal fuzzy uml. further more, ...

Modelling complex knowledge resources can be problematical as there is currently no formalism that can represent the nature of the data-seeking process at a conceptual level. We introduce the functional entity (FE), an encapsulated data resource that acts as a question-answering system, and identify nine different functional entities based on three main types of question-answer entailment: inst...

Abstract Among the many diversity indices in ecologist toolbox, measures that can be partitioned into additive terms are particularly useful as different components related to ecological processes shaping community structure. In this paper, an decomposition is proposed partition structure of a given three complementary fractions: functional diversity, redundancy and species dominance. These sum...

The purpose of the application view is described. A number of methods or models is given to use in this view: stakeholder and concerns, context diagram, static entity relationship models and dynamic flow models. Distribution This article or presentation is written as part of the Gaudí project. The Gaudí project philosophy is to improve by obtaining frequent feedback. Frequent feedback is pursue...