due to business and environmental issues, the efficient design of an integrated forward/reverse logistics network has recently attracted more attention from researchers. the significance of transportation cost and customer satisfaction spurs an interest in developing a flexible network design model with different delivery paths. this paper proposes a flexible mixed-integer programming model to ...

Images and computer graphics play an increasingly important role in the design and manufacture of medical prostheses and implants. Images provide guidance on optimal design in terms of location, preparation and the overall shape and configuration of subcomponents. Direct manipulation of a graphical representation provides a natural design environment. RaPiD is a CAD-like knowledge-based assista...

Marketers have recently begun to embrace complex experimental designs for marketing and advertising testing. Full-factorial, fractional-factorial and Plackett–Burman designs have given marketers new statistical tools to increase the speed, power, and profitability of their testing programs. This case study shows how well constructed and managed experimental designs offer marketing professionals...

We introduce a system that helps users construct interactive visualizations with constant information density. This work is an extension of the DataSplash database visualization environment. DataSplash is a direct manipulation system in which users can construct and navigate visualizations. Objects’ appearances change as users zoom closer to or further away from the visualization. Users specify...

In this paper we discuss some interface design concepts for supporting and enhancing collaborative creativity in multi-user interactive environments. We focus on the design of affordances for direct manipulation and collaboration on table-top displays. As an application of our concepts, we introduce the EnLighTable, an appliance for creative teamwork in the selection of pictures and layout desi...