منابع مشابه
Hitting the Right Paraphrases in Good Time
We present a random-walk-based approach to learning paraphrases from bilingual parallel corpora. The corpora are represented as a graph in which a node corresponds to a phrase, and an edge exists between two nodes if their corresponding phrases are aligned in a phrase table. We sample random walks to compute the average number of steps it takes to reach a ranking of paraphrases with better ones...
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Managing customer relationships was easier in earlier times. Merchants knew their customers – the members of their households, what they generally bought, their likely future purchases, and their current and potential value as customers. This knowledge helped merchants create highly effective customer relationships. However, that close understanding of customers eroded as people became more mob...
متن کاملSpatial Modeling of Vesicle Transport and the Cytoskeleton: The Challenge of Hitting the Right Road
The membrane trafficking machinery provides a transport and sorting system for many cellular proteins. We propose a mechanistic agent-based computer simulation to integrate and test the hypothesis of vesicle transport embedded into a detailed model cell. The method tracks both the number and location of the vesicles. Thus both the stochastic properties due to the low numbers and the spatial asp...
متن کاملHitting the Optimal Vaccination Percentage and the Risks of Error: Why to Miss Right
OBJECTIVE To determine the optimal level of vaccination coverage defined as the level that minimizes total costs and explore how economic results change with marginal changes to this level of coverage. METHODS A susceptible-infected-recovered-vaccinated model designed to represent theoretical infectious diseases was created to simulate disease spread. Parameter inputs were defined to include ...
متن کاملThe Polyhedron-Hitting Problem
We consider polyhedral versions of Kannan and Lipton's Orbit Problem [14, 13] determining whether a target polyhedron V may be reached from a starting point x under repeated applications of a linear transformation A in an ambient vector space Q. In the context of program veri cation, very similar reachability questions were also considered and left open by Lee and Yannakakis in [15], and by Bra...
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ژورنال
عنوان ژورنال: Journal of Perinatal Education
سال: 2009
ISSN: 1058-1243
DOI: 10.1624/105812409x461171