منابع مشابه
Digital Map Library of the Canary Islands
The quality of the Map Libraries is obvious and the expert’s access to the cartographic funds (metadata and images) is a constant aim of the scientific task. However, it is sometimes arduous due to the dispersion of maps in the various museums, libraries and collections. Historians and documentary experts need to access remotely to every existing information, that can be compiled in a single pl...
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Papadimitriou, C.H. and M. Yannakakis, Shortest paths without a map, Theoretical Computer Science 84 (1991) 127-150. We study several versions of the shortest-path problem when the map is not known in advance, but is specified dynamically. We are seeking dynamic decision rules that optimize the worst-case ratio of the distance covered to the length of the (statically) optimal path. We describe ...
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Acetylcholine has been shown to modulate many forms of cortical plasticity. New evidence indicates that reorganization of adult primary auditory cortex is still possible after removal of cholinergic inputs. This finding suggests that acetylcholine may act less as a gate and more as a gain control on cortical plasticity.
متن کاملCoupled Map Lattices without Cluster Expansion
We present an approach to the investigation of the statistical properties of weakly coupled map lattices that avoids completely cluster expansion techniques. Although here it is implemented on a simple case we expect similar strategies to be applicable in a much larger class of situations.
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We investigate the problem for an agent to reach one of a number of goal states by taking actions, where actions cause a deterministic state change. Initially, the topology of the state space and its size are unknown to the agent. We compare a zero-initialized version of Q-learning, that minimizes deliberation time between action executions, with other uninformed search algorithms (i.e. where t...
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ژورنال
عنوان ژورنال: Chigaku Zasshi (Jounal of Geography)
سال: 2008
ISSN: 0022-135X,1884-0884
DOI: 10.5026/jgeography.117.412