منابع مشابه
War and Natural Resource Exploitation
Although the relationship between natural resources and civil war has received much attention, little is known about the underlying mechanisms. Controversies and contradictions in the stylized facts persist because resource extraction is treated as exogenous while in reality fighting affects extraction. We study endogenous fighting, armament, and extraction method, speed and investment. Rapacio...
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In a mixed strategy, game-theoretical scenario mimicking the behaviour of fishing vessels competing for a limited renewable resource, agents following either a Collective Intelligence or a purely selfish strategy quickly outperform fully-cooperative teams as well as agents not planning for future action by acting randomly. The stable balance between fully selfish agents and the Collective Intel...
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The probability that an agent takes a certain action or a certain event occurs depends often on the actions taken by some agents. If this probability depends not only on current actions but on the sum of all past actions, these stock-dependent risks imply an intertemporal effect. In the present paper, we analyse this problem using an example concerning the exploitation of a non-renewable, exhau...
متن کاملNatural Language Based Reformulation Resource and Web Exploitation for Question Answering
We describe and evaluate how a generalized natural language based reformulation resource in our TextMap question answering system improves web exploitation and answer pinpointing The reformulation resource which can be viewed as a clausal extension of WordNet supports high precision syntactic and semantic reformulations of questions and other sentences as well as inferencing and answer generati...
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We describe and evaluate how a generalized natural language based reformulation resource in our TextMap question answering system improves web exploitation and answer pinpointing. The reformulation resource, which can be viewed as a clausal extension of WordNet, supports high-precision syntactic and semantic reformulations of questions and other sentences, as well as inferencing and answer gene...
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ژورنال
عنوان ژورنال: European Economic Review
سال: 2012
ISSN: 0014-2921
DOI: 10.1016/j.euroecorev.2012.09.003