نتایج جستجو برای: driven sampling

تعداد نتایج: 434092  

Journal: :Journal of the Royal Statistical Society: Series A (Statistics in Society) 2014

Journal: :IEEE Transactions on Visualization and Computer Graphics 2014

Journal: :iranian journal of public health 0
s navadeh regional knowledge hub for hiv/aids surveillance, kerman university of medical sciences, kerman, iran ; dept. of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. a mirzazadeh l mousavi aa haghdoost n fahimfar a sedaghat

we estimated the prevalence of hiv, sexually transmitted infections (stis), and risky behaviors among female sex workers (fsw) in kerman city, iran.women, 18 years or older, who reported selling sex for at least 6 months during their lifetime and had at least one sexual contact with a client in the recent 12 months were sampled using responding driven sampling (rds). participants were interview...

Journal: :Physical review letters 2017
Sonja Barkhofen Tim J Bartley Linda Sansoni Regina Kruse Craig S Hamilton Igor Jex Christine Silberhorn

Sampling the distribution of bosons that have undergone a random unitary evolution is strongly believed to be a computationally hard problem. Key to outperforming classical simulations of this task is to increase both the number of input photons and the size of the network. We propose driven boson sampling, in which photons are input within the network itself, as a means to approach this goal. ...

2010
Matthias Schonlau Elisabeth Liebau

Respondent driven sampling (RDS) is a network sampling technique typically employed for hard-to-reach populations (e.g. drug users, men who have sex with men, people with HIV). Similar to snowball sampling, initial seed respondents recruit additional respondents from their network of friends. The recruiting process repeats iteratively, thereby forming long referral chains. Unlike in snowball sa...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Sharad Goel Matthew J Salganik

Respondent-driven sampling (RDS) is a network-based technique for estimating traits in hard-to-reach populations, for example, the prevalence of HIV among drug injectors. In recent years RDS has been used in more than 120 studies in more than 20 countries and by leading public health organizations, including the Centers for Disease Control and Prevention in the United States. Despite the widesp...

پایان نامه :وزارت علوم، تحقیقات و فناوری - موسسه آموزش عالی غیرانتفاعی و غیردولتی سجاد مشهد - دانشکده برق 1390

در چندین دهه اخیر، تکثیر جهانی کامپیوترها، سیستم های الکترونیکی و تجهیزات قابل انتقال، باعث شده که طراحان و محققان تمرکز بیشتری بر طراحی سیستم های ولتاژ و توان پایین داشته باشند. یک ota ولتاژ و توان بسیار پایین در این پروژه پیشنهاد شده است. برای طراحی مدارات ولتاژ پایین، آینه جریان ها و طبقات ورودی و خروجی بررسی می شوند. روش های زیادی برای طراحی otaهای ولتاژ و توان پایین وجود دارد. یکی از این...

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