منابع مشابه
Negative dependence in sampling
The strong Rayleigh property is a new and robust negative dependence property that implies negative association; in fact it implies conditional negative association closed under external fields (CNA+). Suppose thatX1, . . . , XN and Y1, . . . , YN are two families of 0-1 random variables that satisfy the strong Rayleigh property and let Zi := Xi + Yi. We show that {Zi} conditioned on ∑ iXiYi = ...
متن کاملNegative Dependence and Srinivasan’s Sampling Process
In [1] Dubhashi, Jonasson, and Ranjan study the negative dependence properties of Srinivasan’s sampling processes (SSPs), random processes which sample sets of a fixed size with prescribed marginals. In particular they prove that linear SSPs have conditional negative association, by using the Feder-Mihail theorem [3] and a coupling argument. We consider a broader class of SSPs that we call tour...
متن کاملNegative Dependence and Srinivasan's Sampling Process
In [1] Dubhashi, Jonasson, and Ranjan study the negative dependence properties of Srinivasan’s sampling processes (SSPs), random processes which sample sets of a fixed size with prescribed marginals. In particular they prove that linear SSPs have conditional negative association, by using the Feder-Mihail theorem [3] and a coupling argument. We consider a broader class of SSPs that we call tour...
متن کاملRelationship of Opioid Dependence and Positive and Negative Symptoms in Schizophrenic Patients
Abstract Background: Many schizophrenic patients are engaged in self-medication drug abuse, including narcotics. It is assumed that many of these patients have a greater number of psychotic symptoms, and show noncompliance with treatment. In this study, we investigated relationship of positive and negative symptoms and opioid dependence in these patients. Methods: This was a descriptive...
متن کاملNegative-Sampling Word-Embedding Method
The word2vec software of Tomas Mikolov and colleagues has gained a lot of traction lately, and provides state-of-the-art word embeddings. The learning models behind the software are described in two research papers [1, 2]. We found the description of the models in these papers to be somewhat cryptic and hard to follow. While the motivations and presentation may be obvious to the neural-networks...
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ژورنال
عنوان ژورنال: Scandinavian Journal of Statistics
سال: 2012
ISSN: 0303-6898
DOI: 10.1111/j.1467-9469.2011.00766.x