Information, disease, and influence diffuse over networks of entities in both natural systems and human society. Analyzing these transmission networks plays an important role in understanding the diffusion processes and predicting future events. However, the underlying transmission networks are often hidden and incomplete, and we observe only the time stamps when cascades of events happen. In t...

This work studies the problem of inferring whether an agent is directly influenced by another agent over an adaptive diffusion network. Agent i influences agent j if they are connected (according to the network topology), and if agent j uses the data from agent i to update its online statistic. The solution of this inference task is challenging for two main reasons. First, only the output of th...

Cascading processes, such as disease contagion, viral marketing, and information diffusion, are a pervasive phenomenon in many types of networks. The problem of devising intervention strategies to facilitate or inhibit such processes has recently received considerable attention. However, a major challenge is that the underlying network is often unknown. In this paper, we revisit the problem of ...

by Lewis Yablonsky, Emeritus Professor of Sociology and Criminology, California State University-Northridge (Published in the American Sociological Association, "Sociological Practice Newsletter" 8/2000 on my acceptance of THE WILLIAM FOOTE WHYTE CAREER AWARD FOR SOCIOLOGICAL PRACTICE at the ASA Meetings 8/2000 in Washington, D.C.; and was the basis for a lecture on 1/25/01 presented at Grand V...

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Viral marketing has attracted attention from both academics and practitioners. With the rise of usergenerated content (UGC) and broadcasting networks, viral online video advertising campaigns (viral advertising in short) are an emerging trend in viral marketing. Previous literature mainly studied the influence of network structure on viral advertising. Here, we extend such works by decomposing ...

Communities of practices (Cops) can improve organizational performance by effectively promoting knowledge diffusion, and recently they were receiving increasing attention from organizations in abroad. The aim of our study was to further explore how to cultivate and support Communities of practice. According to some literatures, we first studied what is the most important influencing factor of k...

The discussion in the sociology of science about the role of model systems in biology provides an invitation to reflect on whether and how they operate in sociology in comparison to other disciplines. This paper shows that sociology too relies on objects of study that receive a disproportionate amount of attention and implicitly come to stand in for a specific class of objects. But, unlike othe...

youth deviance has always been a major concern and an irritant issue and the focal attention among various societies and it has also been the focus of attention by a large number of authorities. this sociological study deals with the cultural tendency of the youth to deviance by a sociological procedure. using a clustering method, in this survey, the data were obtained from a sample including 3...

Purpose: The present research was conducted with the aim of presenting a model of effective sociological factors in employment on attitudes to unemployment status in the children of devotees. Methodology: This study in terms of purpose was applied and in terms of implementation method was cross-sectional from type of correlation. The research population was unemployment children of devotees of...