29,330 research outputs found

    Political Homophily in Independence Movements: Analysing and Classifying Social Media Users by National Identity

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    Social media and data mining are increasingly being used to analyse political and societal issues. Here we undertake the classification of social media users as supporting or opposing ongoing independence movements in their territories. Independence movements occur in territories whose citizens have conflicting national identities; users with opposing national identities will then support or oppose the sense of being part of an independent nation that differs from the officially recognised country. We describe a methodology that relies on users' self-reported location to build large-scale datasets for three territories -- Catalonia, the Basque Country and Scotland. An analysis of these datasets shows that homophily plays an important role in determining who people connect with, as users predominantly choose to follow and interact with others from the same national identity. We show that a classifier relying on users' follow networks can achieve accurate, language-independent classification performances ranging from 85% to 97% for the three territories.Comment: Accepted for publication in IEEE Intelligent System

    Psychopolitics: Peter Sedgwick’s legacy for mental health movements

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    This paper re-considers the relevance of Peter Sedgwick's Psychopolitics (1982) for a politics of mental health. Psychopolitics offered an indictment of ‘anti-psychiatry’ the failure of which, Sedgwick argued, lay in its deconstruction of the category of ‘mental illness’, a gesture that resulted in a politics of nihilism. ‘The radical who is only a radical nihilist’, Sedgwick observed, ‘is for all practical purposes the most adamant of conservatives’. Sedgwick argued, rather, that the concept of ‘mental illness’ could be a truly critical concept if it was deployed ‘to make demands upon the health service facilities of the society in which we live’. The paper contextualizes Psychopolitics within the ‘crisis tendencies’ of its time, surveying the shifting welfare landscape of the subsequent 25 years alongside Sedgwick's continuing relevance. It considers the dilemma that the discourse of ‘mental illness’ – Sedgwick's critical concept – has fallen out of favour with radical mental health movements yet remains paradigmatic within psychiatry itself. Finally, the paper endorses a contemporary perspective that, while necessarily updating Psychopolitics, remains nonetheless ‘Sedgwickian’

    Multilingual Stance Detection in Social Media Political Debates

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    [EN] Stance Detection is the task of automatically determining whether the author of a text is in favor, against, or neutral towards a given target. In this paper we investigate the portability of tools performing this task across different languages, by analyzing the results achieved by a Stance Detection system (i.e. MultiTACOS) trained and tested in a multilingual setting. First of all, a set of resources on topics related to politics for English, French, Italian, Spanish and Catalan is provided which includes: novel corpora collected for the purpose of this study, and benchmark corpora exploited in Stance Detection tasks and evaluation exercises known in literature. We focus in particular on the novel corpora by describing their development and by comparing them with the benchmarks. Second, MultiTACOS is applied with different sets of features especially designed for Stance Detection, with a specific focus to exploring and combining both features based on the textual content of the tweet (e.g., style and affective load) and features based on contextual information that do not emerge directly from the text. Finally, for better highlighting the contribution of the features that most positively affect system performance in the multilingual setting, a features analysis is provided, together with a qualitative analysis of the misclassified tweets for each of the observed languages, devoted to reflect on the open challenges.Cristina Bosco and Viviana Patti are partially supported by Progetto di Ateneo/CSP 2016 (Immigrants, Hate and Prejudice in Social Media, S1618_L2_BOSC_01). The work of Paolo Rosso was partially funded bythe Spanish MICINN under the research project MISMIS-FAKEnHATE on MISinformation and MIScommunication in social media: FAKE news and HATE speech (PGC2018096212-B-C31).Lai, M.; Cignarella, AT.; Hernandez-Farias, DI.; Bosco, C.; Patti, V.; Rosso, P. (2020). Multilingual Stance Detection in Social Media Political Debates. Computer Speech & Language. 63:1-27. https://doi.org/10.1016/j.csl.2020.101075S12763Balahur, A., & Turchi, M. (2014). Comparative experiments using supervised learning and machine translation for multilingual sentiment analysis. Computer Speech & Language, 28(1), 56-75. doi:10.1016/j.csl.2013.03.004Blondel, V. D., Guillaume, J.-L., Lambiotte, R., & Lefebvre, E. (2008). Fast unfolding of communities in large networks. Journal of Statistical Mechanics: Theory and Experiment, 2008(10), P10008. doi:10.1088/1742-5468/2008/10/p10008Boiy, E., & Moens, M.-F. (2008). A machine learning approach to sentiment analysis in multilingual Web texts. Information Retrieval, 12(5), 526-558. doi:10.1007/s10791-008-9070-zDellaPosta, D., Shi, Y., & Macy, M. (2015). Why Do Liberals Drink Lattes? American Journal of Sociology, 120(5), 1473-1511. doi:10.1086/681254Küçük, D., Can, F., 2019. A tweet dataset annotated for named entity recognition and stance detection. arXiv preprint arXiv:1901.04787. Available at: https://arxiv.org.Mohammad, S. M., & Turney, P. D. (2012). CROWDSOURCING A WORD-EMOTION ASSOCIATION LEXICON. Computational Intelligence, 29(3), 436-465. doi:10.1111/j.1467-8640.2012.00460.xMohammad, S. M., Sobhani, P., & Kiritchenko, S. (2017). Stance and Sentiment in Tweets. ACM Transactions on Internet Technology, 17(3), 1-23. doi:10.1145/3003433Raghavan, U. N., Albert, R., & Kumara, S. (2007). Near linear time algorithm to detect community structures in large-scale networks. Physical Review E, 76(3). doi:10.1103/physreve.76.036106Vychegzhanin, S. V., & Kotelnikov, E. V. (2019). Stance Detection Based on Ensembles of Classifiers. Programming and Computer Software, 45(5), 228-240. doi:10.1134/s0361768819050074West, D. M. (1991). Polling effects in election campaigns. Political Behavior, 13(2), 151-163. doi:10.1007/bf00992294Whissell, C. (2009). Using the Revised Dictionary of Affect in Language to Quantify the Emotional Undertones of Samples of Natural Language. Psychological Reports, 105(2), 509-521. doi:10.2466/pr0.105.2.509-521Zappavigna, M. (2015). Searchable talk: the linguistic functions of hashtags. Social Semiotics, 25(3), 274-291. doi:10.1080/10350330.2014.99694

    Combining brain-computer interfaces and assistive technologies: state-of-the-art and challenges

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    In recent years, new research has brought the field of EEG-based Brain-Computer Interfacing (BCI) out of its infancy and into a phase of relative maturity through many demonstrated prototypes such as brain-controlled wheelchairs, keyboards, and computer games. With this proof-of-concept phase in the past, the time is now ripe to focus on the development of practical BCI technologies that can be brought out of the lab and into real-world applications. In particular, we focus on the prospect of improving the lives of countless disabled individuals through a combination of BCI technology with existing assistive technologies (AT). In pursuit of more practical BCIs for use outside of the lab, in this paper, we identify four application areas where disabled individuals could greatly benefit from advancements in BCI technology, namely,“Communication and Control”, “Motor Substitution”, “Entertainment”, and “Motor Recovery”. We review the current state of the art and possible future developments, while discussing the main research issues in these four areas. In particular, we expect the most progress in the development of technologies such as hybrid BCI architectures, user-machine adaptation algorithms, the exploitation of users’ mental states for BCI reliability and confidence measures, the incorporation of principles in human-computer interaction (HCI) to improve BCI usability, and the development of novel BCI technology including better EEG devices

    The new face of digital populism

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    Populist parties and movements are now a force to be reckoned with in many Western European countries. These groups are known for their opposition to immigration, their ‘anti-establishment’ views and their concern for protecting national culture. Their rise in popularity has gone hand-in-hand with the advent of social media, and they are adept at using new technology to amplify their message, recruit and organise. The online social media following for many of these parties dwarfs the formal membership, consisting of tens of thousands of sympathisers and supporters. This mélange of virtual and real political activity is the way millions of people — especially young people — relate to politics in the 21st century. This is the first quantitative investigation into these digital populists, based on over 10,000 survey responses from 12 countries. It includes data on who they are, what they think and what motivates them to shift from virtual to real-world activism. It also provides new insight into how populism — and politics and political engagement more generally — is changing as a result of social media. The New Face of Digital Populism calls on mainstream politicians to respond and address concerns over immigration and cultural identity without succumbing to xenophobic solutions. People must be encouraged to become actively involved in political and civic life, whatever their political persuasion — it is important to engage and debate forcefully with these parties and their supporters, not shut them out as beyond the pale

    Ramerican Political Science Review (Vol. 4, 2019)

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    Letter from the Department of Political Science -- The Effect of Violence on Social Movement Support / Anna Connor -- The Impact of Independence Movements in Spain on Violence and Terrorism / Corey Brocke -- Trends and Predictions of Midterm Elections / James Grubb -- The United Kingdom: A Case Study in Internet Censorship / Ella Bronaugh -- Latin and South American Immigration, Media Bias, and Policy Preference / Caitlyn Page -- Book Reviews: From Politics to the Pews / Carl Warf -- How Facism Works / Kathryn Row

    The Meme as Post-Political Communication Form: A Semiotic Analysis

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    The 2016 American Presidential Election was a point of great upheaval in the consciousness of many. To many it signified the defeat of the previous global liberal paradigm and a weakening of the traditional ways in which we organize ourselves politically and socially. While most of culture undergoes mediation through the internet- political processes are no exception. This paper aims to analyze how modern political discourses and organizing occur online, and how often politics occurs at the level of memetic communications. The analysis hinges upon studying the history of political memes such as Pepe and the relationship between the news and politics. But it ultimately culminates with the relationship between performing authenticity on the political field and subcultural signifiers such as memes

    Elites and institutions : literature review

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    Exploring elites and their relations to institutions can assist understanding the day-to-day realities of politics in Africa (Chabal and Daloz 1999, Amundsen 2001, Lindberg 2003). This review is a scoping exercise in what has been written on the subject in recent years. The main task of the review is to summarise current understandings of how elites work with and through political institutions in Africa. There is a huge literature in this subject area. We have tried to pick out a) that which is most pertinent and non-repetitive, and b) that which raises as many questions as it provides answers. On the whole we have focused on literature published in the last five to ten years and we have inclined towards the literature on Anglophone Africa. The review is presented as follows: Section 1 is an introduction to Africa’s recent political landscape and it introduces some of the major issues that appear in the literature. Section 2 provides some working definitions of elites, institutions and democratisation as three of the recurring themes in the review. Section 3 reviews literature broadly on democratisation in Africa and specifically on elections and elites. Section 4 examines how political parties have evolved over the last 15 years. Section 5 reviews the three branches of government and Section 6 briefly examines decentralisation and its relation to elites and politics. The remaining sections of the review move outside the more formal political structures to examine the media (Section 7), civil society (Section 8), women’s movements (Section 9), Trades unions (Section 10) and business associations (Section 11). The final Section 12 pulls out a number of gaps in the research that we have identified in the course of the review. Section 13 contains a complete bibliography of citations used in the review. It is crucial to remember that Africa’s experiences of democratisation are no more than 15 years old, and many scholars have cautioned that it is still very early to draw any definite conclusions (Amundsen 2001; Randall and Svasand 2002). Inhaltsverzeichnis: 1. Africa’s political landscape 3 * Diversity of ‘Africa’ 4 * Elections do not mean democracy 4 * Presidentialism 4 * Ethnicity 5 * Personal rule and patronage 5 2. Definitions 6 * Elites 6 * Political institutions 7 * Democratisation 8 3. Democratisation and elites 8 * Elections 9 * Elites and elections 13 4. Political parties 16 5. Branches of government 17 * The executive 17 * The legislature 18 * The Judiciary 20 6. Decentralisation 20 7. Media 21 * Radio 25 * Television 25 * Newspapers 25 * Internet 26 8. Civil society 26 9. Women’s movements 29 10. Trade unions 32 11. Business associations 34 12. Gaps in the research 36 13. Bibliography 3
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