[ACM Press the 1999 workshop on new paradigms in information visualization and manipulation in conjunction with the eighth ACM internation conference - Kansas City, Missouri, United States (1999.11.02-1999.11.06)] Proceedings of the 1999 workshop on new paradigms in information visualization and manipulation in conjunction with the eighth ACM internation conference on Information and knowledge management - NPIVM '99 - Temporal, geographical and categorical aggregations viewed through coordinated displays