Think globally, act locally
نویسنده
چکیده
In a large cyber-physical system, even if individual system elements interact with one another only locally, effects of local decisions quickly spread across the system and combine to yield global consequences. In order to reason about such a system without impractical amounts of communication and computation, we must summarize the system’s global state, and base individual decisions at least partly on aggregate properties. Heuristic methods for doing so have been proposed, but for many cyber-physical systems we need stronger guarantees than heuristics can provide. In this paper, we advocate a more formal methodology for basing local decisions on aggregate statistics. We demonstrate that, using this methodology, it is possible to prove tight performance bounds in a system with 150 degrees of freedom; we believe that similar methods will scale to still-larger systems.
منابع مشابه
Pulmonary dendritic cells: thinking globally, acting locally
The phrase "think globally, act locally" was coined in the early 1970s and directed individuals to clean up their local environment with the ultimate goal of improving the health of the entire planet. Several recent studies indicate that similar considerations apply to the immune system, in which small numbers of leukocytes, such as pulmonary dendritic cells, can modify the local immune environ...
متن کاملمشارکت اجتماعی آنلاین و توسعه اجتماعات محلی در ایران
This paper reviews the citizen media and studies the fourth generation of communication development theories emphasizes on participatory communication. In this kind of theories the cibizen’s parbicipation and their activeness is the center of case instead of the public Accessibility of media. Therefore providing an opportunity for dialogue through media and providing dialogue Democracy in ...
متن کاملمشارکت اجتماعی آنلاین و توسعه اجتماعات محلی در ایران
This paper reviews the citizen media and studies the fourth generation of communication development theories emphasizes on participatory communication. In this kind of theories the cibizen’s parbicipation and their activeness is the center of case instead of the public Accessibility of media. Therefore providing an opportunity for dialogue through media and providing dialogue Democracy in ...
متن کاملThink Globally, Act Locally: Promoting Pre-School Learning about other Cultures
In this paper we discuss our experience with the design of a system for supporting learning about other cultures in children attending kindergartens. In the paper we report the motivations behind our work, the requirements that we have identified, and briefly sketch the demonstrators that we have developed.
متن کاملProtein folding: Think globally, (inter)act locally
Protein folding appears to be almost too complex for a complete description or for accurate structure prediction from sequence data. A simple way of analysing local interactions, however, bears promise of linking theory with experiment and cutting through some of the complexities.
متن کامل