23,171 research outputs found

    On-line planning and scheduling: an application to controlling modular printers

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    We present a case study of artificial intelligence techniques applied to the control of production printing equipment. Like many other real-world applications, this complex domain requires high-speed autonomous decision-making and robust continual operation. To our knowledge, this work represents the first successful industrial application of embedded domain-independent temporal planning. Our system handles execution failures and multi-objective preferences. At its heart is an on-line algorithm that combines techniques from state-space planning and partial-order scheduling. We suggest that this general architecture may prove useful in other applications as more intelligent systems operate in continual, on-line settings. Our system has been used to drive several commercial prototypes and has enabled a new product architecture for our industrial partner. When compared with state-of-the-art off-line planners, our system is hundreds of times faster and often finds better plans. Our experience demonstrates that domain-independent AI planning based on heuristic search can flexibly handle time, resources, replanning, and multiple objectives in a high-speed practical application without requiring hand-coded control knowledge

    Democracy Promotion in the Obama Administration: An Opportunity to Match Action to Rhetoric

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    This article addresses whether and to what extent the Obama administration should continue the Bush administration policies relating to democracy promotion. The focus of the article is on the ADVANCE Act of 2007, a legislative enactment that institutionalized democracy promotion in the State Department. After explicating the key provisions of this Act, as well as their implementation status, the article addresses key critiques leveled at democracy promotion, as well as areas where the Obama administration can expand on what has been accomplished thus far in this field. In the end, democracy promotion should continue to be an integral component of the United States\u27 foreign policy, and the Obama administration is uniquely placed to ensure the efficacy of such efforts in the near-term. Whether the administration can add such a broadly conceived endeavor to its current plate is another, unaddressed, issue

    Cutting the Climate-Development Gordian Knot - Economic options in a politically constrained world

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    Combating climate change cannot but be a cooperative venture amongst nations. Together with the problem posed by the withdrawal of the US from the Kyoto Protocol, the key challenge for winning the battle is the involvement of developing countries in efforts to alter their GHGs emissions trends. This involvement is necessary technically but also politically to bring the largest emitter of the planet back on the battle field. In the first section we draw on history to outline the intellectual underpinning of North/South divide around climate affairs. In the second section we show the economic basis for a leverage effect between development and climate policies. The third section ventures to propose some guidance to develop a viable climate regime strong enough to support an ambitious effort to decarbonize economies and we show that the Kyoto framework, once re-interpreted and amended is not so far from this working drawing.climate policy; development
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