نتایج جستجو برای: parametric possibility distribution

تعداد نتایج: 815100  

2009
Kevin Loquin Olivier Strauss

In this paper, we propose a novel approach for quantifying the noise level at each location of a digital signal. This method is based on replacing the conventional kernelbased approach extensively used in signal filtering by an approach involving another kind of kernel: a possibility distribution. Such an approach leads to interval-valued resulting methods instead of point-valued ones. We show,...

Journal: :Statistics and Computing 2011
Jun Ma Sigurbjorg Gudlaugsdottir Graham Wood

We consider independent sampling from a two-component mixture distribution, where one component (called the parametric component) is from a known distributional family and the other component (called the non-parametric component) is unknown. This is a semi-parametric mixture distribution. We discretize the non-parametric component and estimate the parameters of this mixture model, namely the mi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم و فنون مازندران 0

مدل روزنه های موازی موج دار (corrugated oarallel bundle model) برای تعریف اثر ساختمان روزنه ها در نفوذ-واکنش (diffusion and reaction) در کاتالیستهای متخلخل بکار می رود. در مدل روزنه های موج دار، از یک دسته روزنه های اصلی (pore) استفاده شده است . هر یک از این روزنه های اصلی دارای یکسری عناصر روزنه می باشد که هر عنصر دارای یک شعاع تعیین شده به صورت اتفاقی از یک توزیع اندازه روزنه ها (pore size di...

Journal: :IET Biometrics 2014
Vitomir Struc Jerneja Zganec-Gros Bostjan Vesnicer Nikola Pavesic

Similarity scores represent the basis for identity inference in biometric verification systems. However, because of the so-called miss-matched conditions across enrollment and probe samples and identity-dependent factors these scores typically exhibit statistical variations that affect the verification performance of biometric systems. To mitigate these variations, scorenormalisation techniques...

2013
Pegah Taherifard Ali Delpisheh Ramin Shirali Abdorrahim Afkhamzadeh Yousef Veisani

Background. Postpartum depression (PPD) is considered as one of the mood disturbances occurring during 2-3 months after delivery. The present study aimed to determine the prevalence of PPD and its associated risk factors in border city of Ilam, western Iran. Methods. Through a descriptive cross-sectional study in 2011, overall, 197 women who attended Obstetrics & Gynecology clinics postpartumly...

2008
Shahram Izadi

While the pervasive use of interactive whiteboards in education has emphasized the need for large public displays, a growing number of schools are moving towards a one to one (student to computer) ratio. Thus there is significant interest in understanding how personal devices (e.g. laptops, clickers) can be coupled with large public displays in a technology enabled classroom. We describe a corr...

Journal: :MSMR 2015
Kasi M Chu Oseizame V Emasealu Zheng Hu Francis L O'Donnell Leslie L Clark

Postpartum depression (PPD) is one of the most common psychiatric conditions of the postpartum period. Several studies have found an association between PPD and other mental health disorders. The Defense Medical Surveillance System (DMSS) was used to identify a cohort of primiparous service women with PPD between 1998 and 2010 and match them by month of delivery to a cohort of women without PPD...

2003
Athinodoros S. Georghiades

There are computer graphics applications for which the shape and reflectance of complex objects, such as faces, cannot be obtained using specialized equipment due to cost and practical considerations. We present an imagebased technique that uses only a small number of example images, and assumes a parametric model of reflectance, to simultaneously and reliably recover the Bidirectional Reflecta...

2004
Valerie E. Whiffen

Many myths exist about postpartum depression (PPD), all of which are based on the assumption that PPD differs qualitatively from depression that occurs at other times in women’s lives. These myths paint a misleading picture of how PPD arises and may prevent women from receiving treatment for their difficulties. In this article, I identify five common myths and review the research literature to ...

2010
Luciana dos Santos Medeiros Carla Dray Marassi Eduardo Eustáquio S. Figueiredo Walter Lilenbaum

Bovine tuberculosis, a chronic infection in cattle caused by Mycobacterium bovis, remains an economic and public health problem for several countries. Due to its economic impact on international trade, contagious nature, and implications for human health, global programs to eradicate the disease were implemented worldwide. Those programs are based on slaughtering PPD-reactive animals. Despite t...

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