This book constitutes the refereed proceedings of the 7th International Conference on Conceptual Structures, ICCS'99, held in Blacksburg, Virginia, USA in July 1999.
The 34 revised full papers presented were carefully reviewed and selected for inclusion in the book. Also included is a 65 page proposed draft standard for conceptual graphs. The papers are organized in sections on conceptual graph modeling; natural language; applications; SISYPHUS-I, contexts, logics and conceptual graphs; and position papers.

This book is the proceedings of the Second International Conference on Conceptual Structures, ICCS '94, held at College Park, Maryland, USA in August 1994.
This proceedings presents, on an international scale, up-to- the-minute research results on theoretical and applicational aspects of conceptual graphs, particularly on the use of contexts in knowledge representation. The concept of contexts is highly important for all kinds of knowledge-intensive systems. The book is organized into sections on natural language understanding, rational problem solving, conceptual graph theory, contexts...