Ego-networks analysis with R (IV). Multilevel analysis

Homogeneity of social networks by age and marital status: A multilevel analysis of ego-centered networks

Is homogeneity in personal relationships in one trait the by-product of selection on another trait, or is it the result of direct selection on that trait? This question has often been analyzed in the context of marriage homogamy. We apply this issue to the question of whether there is selection in networks based on age on the one hand, and marital status on the other hand. The role of age has b...

rodbar dam slope stability analysis using neural networks

در این تحقیق شبکه عصبی مصنوعی برای پیش بینی مقادیر ضریب اطمینان و فاکتور ایمنی بحرانی سدهای خاکی ناهمگن ضمن در نظر گرفتن تاثیر نیروی اینرسی زلزله ارائه شده است. ورودی های مدل شامل ارتفاع سد و زاویه شیب بالا دست، ضریب زلزله، ارتفاع آب، پارامترهای مقاومتی هسته و پوسته و خروجی های آن شامل ضریب اطمینان می شود. مهمترین پارامتر مورد نظر در تحلیل پایداری شیب، بدست آوردن فاکتور ایمنی است. در این تحقیق ...

Analysis of Email Ego Networks An exploratory study of ego networks in an email network

ABSTRACT For this project, we look at network properties of ego networks in a email network from a research lab. Due to the nature of the email network, most of the ego networks have a star-like structure. After the removal of the ego, there is one large connected component that roughly corresponds to email addresses within the lab, and isolated nodes corresponding to the external addresses. We...

Correspondence Analysis of Multirelational Multilevel Networks

Social network analysis is concerned not only with social relations (Wellman 1988), but also more generally with attributes across pairs of social actors, which are referred to as dyadic attributes (Borgatti and Everett 1987, p. 243). These dyadic attributes range from shared affiliations to distances between cities to similarities in respondents’ answers to items on a questionnaire. While most...

Multilevel Analysis