On the discovery of social roles in large scale social systems

The social role of a participant in a social system is a label conceptualizing the circumstances under which she interacts within it. They may be used as a theoretical tool that explains why and how users participate in an online social system. Social role analysis also serves practical purposes, such as reducing the structure of complex systems to rela- tionships among roles rather than alters, and enabling a comparison of social systems that emerge in similar contexts. This article presents a data-driven approach for the discovery of social roles in large scale social systems. Motivated by an analysis of the present art, the method discovers roles by the conditional triad censuses of user ego-networks, which is a promising tool because they capture the degree to which basic social forces push upon a user to interact with others. Clusters of censuses, inferred from samples of large scale network carefully chosen to preserve local structural prop- erties, define the social roles. The promise of the method is demonstrated by discussing and discovering the roles that emerge in both Facebook and Wikipedia. The article con- cludes with a discussion of the challenges and future opportunities in the discovery of social roles in large social systems

Surveying human habit modeling and mining techniques in smart spaces

A smart space is an environment, mainly equipped with Internet-of-Things (IoT) technologies, able to provide services to humans, helping them to perform daily tasks by monitoring the space and autonomously executing actions, giving suggestions and sending alarms. Approaches suggested in the literature may differ in terms of required facilities, possible applications, amount of human intervention required, ability to support multiple users at the same time adapting to changing needs. In this paper, we propose a Systematic Literature Review (SLR) that classifies most influential approaches in the area of smart spaces according to a set of dimensions identified by answering a set of research questions. These dimensions allow to choose a specific method or approach according to available sensors, amount of labeled data, need for visual analysis, requirements in terms of enactment and decision-making on the environment. Additionally, the paper identifies a set of challenges to be addressed by future research in the field

QCBA: Postoptimization of Quantitative Attributes in Classifiers based on Association Rules

The need to prediscretize numeric attributes before they can be used in association rule learning is a source of inefficiencies in the resulting classifier. This paper describes several new rule tuning steps aiming to recover information lost in the discretization of numeric (quantitative) attributes, and a new rule pruning strategy, which further reduces the size of the classification models. We demonstrate the effectiveness of the proposed methods on postoptimization of models generated by three state-of-the-art association rule classification algorithms: Classification based on Associations (Liu, 1998), Interpretable Decision Sets (Lakkaraju et al, 2016), and Scalable Bayesian Rule Lists (Yang, 2017). Benchmarks on 22 datasets from the UCI repository show that the postoptimized models are consistently smaller -- typically by about 50% -- and have better classification performance on most datasets

Next Generation Evaluation: Embracing Complexity, Connectivity, and Change

This Learning Brief draws from literature and research, as well as more than a dozen interviews with foundation leaders, evaluation practitioners, and social sector thought leaders, with the intention of starting the conversation in the field around Next Generation Evaluation characteristics and approaches

The influence of social networking, video games and general computer usage on parent-child relations

The aim of this project was to find out how parents feel about controlling the media/technology use of their adolescent children and how it influences their parent/child relations. This is important because modern entertainment technologies are easily accessible and available to the population; thus they inevitably invade family space and influence family life. A gap in the literature is identified, indicating that existing research does not explore the reasons why parents control or do not control their adolescent children’s use of social media, video games and more. Additionally, there was no literature concerning how parents feel about such control and whether it was part of emotional labour; that being any activities that are performed with a child’s well-being in mind. The project was carried out as the part of an undergraduate degree course by the final year student in sociology. The data was collected through face-to-face and telephone semi-structured interviews with mothers and fathers of adolescents. It was observed that both mothers and fathers felt their control over children’s use of media and technologies influenced their relations. Also the findings show a variety of reasons why parents choose to exercise their control in a particular way, and how it links to parent-child relations

Confronting the Future: Coping with Discovery of Electronic Material

Earlier research has found that housing and childbearing are linked, difficulties accessinghousing possibly delaying childbearing and negatively effecting education opportunities. Toincrease housing accessibility, some municipalities have earmarked apartments for youngadults. These “youth dwellings” are criticized for being small and not necessarily facilitatingfamily formation and fertility, better suiting students’ needs. We analyze the childbearing andeducation patterns of young adults entering youth housing in 1996. We follow them for 14years to examine the causal effect of youth housing on childbearing and higher educationusing a propensity score matching technique. Results indicates that gaining access to small,low-rent inner-city rental apartments earmarked for young adults promote higher educationbut negatively affect childbearing, unless the rest of the housing market permits these rentersto advance their housing careers.Qc 20150205</p

Discovering and reconciling semantic conflicts : a data mining perspective

Includes bibliographical references (p. 20).Hongjun Lu ... [et al.]

Privacy, Restriction, and Access: Legal and Ethical Dilemmas

This paper examines the intersection of privacy and access in archival repositories. Archival repositories are well known for containing restricted material, and for protecting the privacy of the donors. This literature review examines the need for restricted material from both legal and ethical standpoints, as well as discussing culturally sensitive materials while determining what archives and libraries can do to protect both themselves and their donors while enhancing accessibility and freedom of information