منابع مشابه
Picking a Pooling
We introduce a concept we call “mutual metainformation” as a criterion for determining the maximum statistically significant number of clusters in distributional clustering problems. In distributional clustering, one has data drawn from an ensemble of probability distributions and seeks to group similar distributions together. We focus on the case of multinomials, such as a set of biased coins ...
متن کاملManipulating picking sequences
Picking sequences are a natural way of allocating indivisible items to agents in a decentralized manner: at each stage, a designated agent chooses an item among those that remain available. We address the computational issues of the manipulation of picking sequences by an agent or a coalition of agents. We show that a single agent with additively separable preferences can compute an optimal man...
متن کاملShort Note Semblance picking
Tomography in the post-migrated domain is quickly becoming the standard approach for obtaining velocities in complex areas. The standard flow to update the velocity through tomography in the post-migrated domain begins by migrating the data using some initial velocity model. This migration method can be Kirchhoff (Etgen, 1990), downward continuation methods (Clapp, 2001b; Mosher et al., 2001), ...
متن کاملPicking the winners
We analyze the problem of choosing the w contestants who will win a competition within a group of n > w competitors when all jurors commonly observe who the w best contestants are, but they may be biased. We study conditions on the con guration of the jury so that it is possible to induce the jurors to always choose the best contestants, whoever they are. If the equilibrium concept is dominant ...
متن کاملPicking the clathrin lock
Bacteria diversify nfectious bacteria often grow in their hosts as biofilms. Blaise Boles, Matthew Thoendel, and Pradeep Singh (University of Iowa, Iowa City, IA) now report that growth in biofilms causes Pseudomonas aeruginosa bacteria to diversify. The resultant diverse populations are probably more able to cope with changing environmental conditions, providing a bacterial correlate of the re...
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ژورنال
عنوان ژورنال: Science
سال: 2007
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.318.5852.889b