Network-based marketing refers to a collection of marketing techniquesthat take advantage of links between consumers to increase sales. Weconcentrate on the consumer networks formed using direct interactions(e.g., communications) between consumers. We survey the diverseliterature on such...

The study of complex systems should be based on a systems-theoretic framework which requires both self-organizing and symbolic dimensions. An inclusive framework based on the notion of semiotics is advanced to build models capable of representing, as well as evolving in their environments, with...

This paper presents an analysis of trends in Internet security based on an investigation of 4,299 Internet security-related incidents reported to the CERT{reg_sign} Coordination Center (CERT{reg_sign}/CC) from 1989 through 1995. Prior to this research, knowledge of actual Internet security...