Search results

International audience ; We propose a graph contextualization method, pairGraphText, to study political engagement on Facebook during the 2012 French presidential election. It is a spectral algorithm that contextualizes graph data with text data for online discussion thread. In particular , we examine the Facebook posts of the eight leading candidates and the comments beneath these posts. We find evidence of both (i) candidate-centered structure, where citizens primarily comment on the wall of one candidate and (ii) issue-centered structure (i.e. on political topics), where citizens' attention and expression is primarily directed towards a specific set of issues (e.g. economics, immigration, etc). To identify issue-centered structure, we develop pairGraphText, to analyze a network with high-dimensional features on the interactions (i.e. text). This technique scales to hundreds of thousands of nodes and thousands of unique words. In the Facebook data, spectral clustering without the contextualizing text information finds a mixture of (i) candidate and (ii) issue clusters. The contextualized information with text data helps to separate these two structures. We conclude by showing that the novel methodology is consistent under a statistical model.

International audience ; We propose a graph contextualization method, pairGraphText, to study political engagement on Facebook during the 2012 French presidential election. It is a spectral algorithm that contextualizes graph data with text data for online discussion thread. In particular , we examine the Facebook posts of the eight leading candidates and the comments beneath these posts. We find evidence of both (i) candidate-centered structure, where citizens primarily comment on the wall of one candidate and (ii) issue-centered structure (i.e. on political topics), where citizens' attention and expression is primarily directed towards a specific set of issues (e.g. economics, immigration, etc). To identify issue-centered structure, we develop pairGraphText, to analyze a network with high-dimensional features on the interactions (i.e. text). This technique scales to hundreds of thousands of nodes and thousands of unique words. In the Facebook data, spectral clustering without the contextualizing text information finds a mixture of (i) candidate and (ii) issue clusters. The contextualized information with text data helps to separate these two structures. We conclude by showing that the novel methodology is consistent under a statistical model.

Derived from an undergraduate course taught by the author, this accessible book seeks to challenge and provoke readers by posing a series of topical questions concerning climate change and society. Topic summaries provide answers to technical, socio-economic and moral questions surrounding the deployment of climate science. These include how to build and test a climate model, whom and what is most at risk from climate change, and whether we should geoengineer the climate. Practical exercises and case studies provide deeper insights by taking readers through role-play activities and authentic climate change projects. Supporting materials, including notes for instructors and students, graphics, video-clips, games, and online resources, offer scope for further private study and group work. With a focus on applying climate science in practice, this book is ideal for students of geography, natural science, engineering and economics, as well as practitioners involved in the climate service industry

Due to the complicated nature of using art in clinical practice, art therapists are often confronted with ethical considerations unique to their field. This book explores challenging dilemmas in the ethical practice of art therapy, such as displaying client art, religious and sexual issues, and the digital dissemination of confidential materials

Cover -- Table of Contents -- Curriculum Studies -- Education Policy -- Education Research -- Education Testing and Evaluation -- Educational Psychology -- Elementary Schools -- Higher Education -- History of Education -- Literacy Research -- Philosophy of Education -- Race, Ethnicity and Education -- Scholarly Publishing -- School Administration -- School Health -- School Improvement -- School Psychology -- Sociology and Education -- Teaching -- Urban Education -- Additional Research -- Index.