Dissertations / Theses on the topic 'Plateforme de médias sociaux'
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Niu, Jing. "An investigation of marketing communication facilitated by social media platforms." Electronic Thesis or Diss., Jouy-en Josas, HEC, 2023. http://www.theses.fr/2023EHEC0009.
Full textThis thesis predominantly delves into what motivates social media users' interactions (the antecedents), what determines patterns of different users' activities (the content), what influences the effectiveness of social media activities (the implementation), and what determines the outcomes of those activities (the consequences)
Meloche, Dorris Alexandre. "L'usage des médias sociaux par les relationnistes." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/30488.
Full textBrisset, Maxime. "Médias et stéréotypes sociaux : Représentations de l’otaku japonais." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/33181.
Full textAbdaoui, Amine. "Fouille des médias sociaux français : expertise et sentiment." Thesis, Montpellier, 2016. http://www.theses.fr/2016MONTT249/document.
Full textSocial Media has changed the way we communicate between individuals, within organizations and communities. The availability of these social data opens new opportunities to understand and influence the user behavior. Therefore, Social Media Mining is experiencing a growing interest in various scientific and economic circles. In this thesis, we are specifically interested in the users of these networks whom we try to characterize in two ways: (i) their expertise and their reputations and (ii) the sentiments they express.Conventionally, social data is often mined according to its network structure. However, the textual content of the exchanged messages may reveal additional knowledge that can not be known through the analysis of the structure. Until recently, the majority of work done for the analysis of the textual content was proposed for English. The originality of this thesis is to develop methods and resources based on the textual content of the messages for French Social Media Mining.In the first axis, we initially suggest to predict the user expertise. For this, we used forums that recruit health experts to learn classification models that serve to identify messages posted by experts in any other health forum. We demonstrate that models learned on appropriate forums can be used effectively on other forums. Then, in a second step, we focus on the user reputation in these forums. The idea is to seek expressions of trust and distrust expressed in the textual content of the exchanged messages, to search the recipients of these messages and use this information to deduce users' reputation. We propose a new reputation measure that weighs the score of each response by the reputation of its author. Automatic and manual evaluations have demonstrated the effectiveness of the proposed approach.In the second axis, we focus on the extraction of sentiments (emotions and polarity). For this, we started by building a French lexicon of sentiments and emotions that we call FEEL (French Expanded Emotions Lexicon). This lexicon is built semi-automatically by translating and expanding its English counterpart NRC EmoLex. We then compare FEEL with existing French lexicons from literature on reference benchmarks. The results show that FEEL improves the classification of French texts according to their polarities and emotions. Finally, we propose to evaluate different features, methods and resources for the classification of sentiments in French. The conducted experiments have identified useful features and methods in the classification of sentiments for different types of texts. The learned systems have been particularly efficient on reference benchmarks.Generally, this work opens promising perspectives on various analytical tasks of Social Media Mining including: (i) combining multiple sources in mining Social Media users; (ii) multi-modal Social Media Mining using not just text but also image, videos, location, etc. and (iii) multilingual sentiment analysis
Rehman, Faizan Ur. "Vers une plateforme pour l'extraction et la visualisation multi-échelle d'événements sociaux." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAM073/document.
Full textThe population in cities is slated to double by mid-century according to estimates prepared by the World Health Organization. This rapid increase in population will impact transportation and economic growth, and will increase responsibilities of local managing authorities and different stakeholders. It is a need of the hour to convert cities into smart cities in order to provide new service to the public, by using available resources in an optimum manner. From crowd-sourced data and open governmental data to other online sources, a variety of data sources can provide users with smart tools to efficiently manage their daily activities. Moreover, with the advancement in Internet and mobile technologies, social networking platforms such as Facebook and Twitter have become popular modes of communication. They allow users to share a spectrum of information, including spatio-temporal data, both publicly and within their community of interest in real-time. Scrutinizing knowledge from different types of available, rich, geo-tagged, and crowd-sourced data and incorporating it on a map has become more feasible. This presents a real opportunity to enrich traditional maps and enhance conventional spatio-temporal queries with the help of different types of data extracted from a variety of available data sources. In this thesis, we first propose a constraint-aware route recommendation system in lack of physical infrastructure environment that leverages geo-tagged data in social media and user-generated content to identify upcoming traffic constraints and, thus, recommend an optimized path. We have designed and developed a system using a spatial grid index to inform users about upcoming constraints and calculate a new, optimized path in minimal response time. Later, the concept of “smart maps” will be introduced by collecting, managing, and integrating heterogeneous data sources in order to infer relevant knowledge-based layers. Unlike conventional maps, smart maps extract information about live events (e.g., concert, competition, incidents, etc.), online offers, and statistical analysis (e.g., dangerous areas) by encapsulating incoming semi- and un-structured data into structured generic packets. This methodology sets the ground for providing different intelligent services and applications. Moreover, developing smart maps requires an efficient and scalable processing and the visualization of knowledge-based layers at multiple map scales, thus allowing a smooth and clutter-free browsing experience. Finally, we introduce Hadath, a scalable and efficient system that extracts social events from a variety of unstructured data streams. Hadath applies natural language processing and multi-dimensional clustering techniques to extract relevant events of interest at different map scales, and to infer the spatio-temporal extent of detected events. The system comprises a data wrapping component which digests different types of data sources, and prepossesses data to generate structured data packets out of unstructured streams. Hadath also implements a hierarchical in-memory spatio-temporal indexing scheme to allow efficient and scalable access to raw data, as well as to extracted clusters of events. Initially, data packets are processed to discover events at a local scale, then, the proper spatio-temporal extent and the significance of detected events at a global scale is determined. As a result, live events can be displayed at different spatio-temporal resolutions, thus allowing a smooth and unique browsing experience. Finally, to validate our proposed system, we conducted experiments on real-world data streams. The final output of our system named Hadath creates a unique and dynamic map browsing experience
Kyanvar, Mohamed Ali. "Médias et mouvements sociaux en Iran au vingtième siècle." Grenoble 3, 1992. http://www.theses.fr/1992GRE39069.
Full textThis is a historical, political and communicationnal approach to the media in a developing country like iran, in which we have studied the links between the state, the media (press, radio and television) and the working classes. The first chapter consists of theorical analysis of the media in the process of legitimation of the power of the state. The second chapter describes the social, political and economic situation of iran before the first social reforms (the constitutionnal revolution of 1906) and how the people use traditionnal means of communication. The third chapter and fourth, concern the role played by the media in the creation of social movements. Chapters fifth, sixth, seventh deal more particularly with radio and television in iran before, during and after 1979 revolution. The three types of iranian television analyzed in this study are : 1958-68 : private television, 1968-78 : state run television, since 1979 : television on behalf of islam and islamic education
Gervais, Michèle. "Le rôle des médias dans la formation d'enjeux sociaux." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0001/MQ41909.pdf.
Full textBrucelle, Morgane. "Fan culture : résistance et mémétique sur les médias sociaux." Thesis, Montpellier 3, 2018. http://www.theses.fr/2018MON30021/document.
Full textThis dissertation aims at looking at the phenomena of fan resistance on social media through the memetic perspective. The objective is twofold: on one hand, to determine the function held by fans and official meaning-makers in the overall structure of cultural production as to reveal their power dynamics. For that purpose, we shall focus on a specific type of fans, namely television fans who connect around queer matters – whether those matters are broached in American TV contents or not – and who make digital technology part of their rewriting practices as well as their protests against the lack of diversity and authentic representation in current US television shows.On the other hand, adopting the meme's eye view will allow us to contemplate these power dynamics between fans and producers by questioning the mecanisms at play in the formation of each of their functions in the production/reception structure. Memetics understood as a Darwinian theory of cultural evolution shall prove to be an efficient tool for interpreting the creation of groups and group interactions, and thus allow us to conceptualize "fans" and "producers" as superorganisms, social complexes of individuals driven by a common meme. We will, through an analysis of the ways in which LGBTQ television narratives are transmitted, problematize fan resistance to cultural contents as a memetic instance: a battle between superorganisms
Sha, Xiaolan. "Personnalisation du contenu et tendances dans les médias sociaux." Thesis, Paris, ENST, 2013. http://www.theses.fr/2013ENST0026/document.
Full textFluctuating along user connections, some content succeeds at capturing the attention of a large amount of users and suddenly becomes trending. Understanding trending content and its dynamics is crucial to the explanation of opinion spreading, and to the design of social marketing strategies. While previous research has mostly focused on trending content and on the network structure of individuals in social media, this work complements these studies by exploring in depth the human factors behind the generation of this content. We build upon this analysis to investigate new personalization tools helping individuals to discover interesting social media content. This work contributes to the literature on the following aspects: an in depth analysis on individuals who create trending content in social media that uncovers their distinguishing characteristics; a novel means to identify trending content by relying on the ability of special individuals who create them; a mechanism to build a recommender system to personalize trending content; and techniques to improve the quality of recommendations beyond the core theme of accuracy. Our studies underline the vital role of special users in the creation of trending content in social media. Thanks to such special users and their ``wisdom'', individuals may discover the trending content distilled to their tastes. Our work brings insights in two main research directions - trending content in social media and recommender systems
Trad, Riadh. "Découverte d'évènements par contenu visuel dans les médias sociaux." Thesis, Paris, ENST, 2013. http://www.theses.fr/2013ENST0030/document.
Full textThe ease of publishing content on social media sites brings to the Web an ever increasing amount of user generated content captured during, and associated with, real life events. Social media documents shared by users often reflect their personal experience of the event. Hence, an event can be seen as a set of personal and local views, recorded by different users. These event records are likely to exhibit similar facets of the event but also specific aspects. By linking different records of the same event occurrence we can enable rich search and browsing of social media events content. Specifically, linking all the occurrences of the same event would provide a general overview of the event. In this dissertation we present a content-based approach for leveraging the wealth of social media documents available on the Web for event identification and characterization. To match event occurrences in social media, we develop a new visual-based method for retrieving events in huge photocollections, typically in the context of User Generated Content. The main contributions of the thesis are the following : (1) a new visual-based method for retrieving events in photo collections, (2) a scalable and distributed framework for Nearest Neighbors Graph construction for high dimensional data, (3) a collaborative content-based filtering technique for selecting relevant social media documents for a given event
Merra, Lucile. "Pour une sociologie des médias sociaux : Internet et la révolution médiatique : nouveaux médias et interactions." Thesis, Paris 5, 2013. http://www.theses.fr/2013PA05H024/document.
Full textThis thesis is focused on the analysis of a topic that is still a “work in progress” in Sociology: social media. Although this tautological expression may be amazing at first sight, it appears that no academic definition of social media has been proposed to date. This gap in academic research illustrates that this topic is both recent and complex. Therefore, our research aims to conduct a contextual analysis of the emergence of a new media. This research is based on an empirical approach through the study of uses, practices and representations of social media users. As social media are characterized by the interactionist dimension, our research will target active users. From these connected and networked people to active audiences, our analysis will focus on new ways related to involvement. Our research will contribute to the sociological understanding of a social, cultural and media topic that represents social media as well as the set up of social movements supported by social media
Perreault, Marie-Catherine. "L’engagement des consommateurs envers une marque via les médias sociaux." Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11598.
Full textGuille, Adrien. "Diffusion de l’information dans les médias sociaux : modélisation et analyse." Thesis, Lyon 2, 2014. http://www.theses.fr/2014LYO22015/document.
Full textSocial media have greatly modified the way we produce, diffuse and consume information, and have become powerful information vectors. The goal of this thesis is to help in the understanding of the information diffusion phenomenon in social media by providing means of modeling and analysis.First, we propose MABED (Mention-Anomaly-Based Event Detection), a statistical method for automatically detecting events that most interest social media users from the stream of messages they publish. In contrast with existing methods, it doesn't only focus on the textual content of messages but also leverages the frequency of social interactions that occur between users. MABED also differs from the literature in that it dynamically estimates the period of time during which each event is discussed rather than assuming a predefined fixed duration for all events. Secondly, we propose T-BASIC (Time-Based ASynchronous Independent Cascades), a probabilistic model based on the network structure underlying social media for predicting information diffusion, more specifically the evolution of the number of users that relay a given piece of information through time. In contrast with similar models that are also based on the network structure, the probability that a piece of information propagate from one user to another isn't fixed but depends on time. We also describe a procedure for inferring the latent parameters of that model, which we formulate as functions of observable characteristics of social media users. Thirdly, we propose SONDY (SOcial Network DYnamics), a free and extensible software that implements state-of-the-art methods for mining data generated by social media, i.e. the messages published by users and the structure of the social network that interconnects them. As opposed to existing academic tools that either focus on analyzing messages or analyzing the network, SONDY permits the joint analysis of these two types of data through the analysis of influence with respect to each detected event.The experiments, conducted on data collected on Twitter, demonstrate the relevance of our proposals and shed light on some properties that give us a better understanding of the mechanisms underlying information diffusion. First, we compare the performance of MABED against those of methods from the literature and find that taking into account the frequency of social interactions between users leads to more accurate event detection and improved robustness in presence of noisy content. We also show that MABED helps with the interpretation of detected events by providing clearer textual description and more precise temporal descriptions. Secondly, we demonstrate the relevancy of the procedure we propose for estimating the pairwise diffusion probabilities on which T-BASIC relies. For that, we illustrate the predictive power of users' characteristics, and compare the performance of the method we propose to estimate the diffusion probabilities against those of state-of-the-art methods. We show the importance of having non-constant diffusion probabilities, which allows incorporating the variation of users' level of receptivity through time into T-BASIC. We also study how -- and in which proportion -- the social, topical and temporal characteristics of users impact information diffusion. Thirdly, we illustrate with various scenarios the usefulness of SONDY, both for non-experts -- thanks to its advanced user interface and adapted visualizations -- and for researchers -- thanks to its application programming interface
Fraisier-Vannier, Ophélie. "Détection de points de vue sur les médias sociaux numériques." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30200.
Full textNumerous domains have interests in studying the viewpoints expressed online, be it for marketing, cybersecurity, or research purposes with the rise of computational social sciences. We propose in this manuscript two contributions to the field of stance detection, focused around the difficulty of obtaining annotated data of quality on social medias. Our first contribution is a large and complex dataset of 22853 Twitter profiles active during the French presidential campaign of 2017. This is one of the rare datasets that considers a non-binary stance classification and, to our knowledge, the first one with a large number of profiles, and the first one proposing overlapping political communities. This dataset can be used as-is to study the campaign mechanisms on Twitter, or used to test stance detection models or network analysis tools. We then propose two semi-supervised generic stance detection models using a handful of seed profiles for which we know the stance to classify the rest of the profiles by exploiting various proximities. Indeed, current stance detection models are usually grounded on the specificities of some social platforms, which is unfortunate since it does not allow the integration of the multitude of available signals. By infering proximities from differents types of elements available on social medias, we can detect profiles close enough to assume they share a similar stance on a given subject. Our first model is a sequential ensemble algorithm which propagates stances thanks to a multi-layer graph representing proximities between profiles. Using datasets from two platforms, we show that, by combining several types of proximities, we can achieve excellent results. Our second model allows us to observe the evolution of profiles' stances during an event with as little as one seed profile by stance. This model confirms that a large majority of profiles do not change their stance on social medias, or do not express their change of heart
Balalau, Oana. "Recherche de sous-graphes denses et d'événements dans les médias sociaux." Electronic Thesis or Diss., Paris, ENST, 2017. http://www.theses.fr/2017ENST0020.
Full textEvent detection in social media is the task of finding mentions of real-world events in collections of posts. The motivation behind our work is two-folded: first, finding events that are not covered by mainstream media and second, studying the interest that users show for certain types of events. In order to solve our problem, we start from a graph based characterization of the data in which nodes represent words and edges count word co-occurrences. Density is a very good measure of importance and cohesiveness in graphs. Taking into account the special properties of real-word networks, we can develop algorithms that efficiently solve hard problems. The contributions of this thesis are: devising efficient algorithms for computing different types of dense subgraphs in real-world graphs, presenting a novel dense subgraph definition and providing an efficient graph-based algorithm for event detection
Ferrari, Giovannipaolo. "Au delà des professions ? Le travail à l'époque des médias sociaux." Thesis, Montpellier 3, 2016. http://www.theses.fr/2016MON30009.
Full textThis thesis concerns, firstly, change in workers professional practices of a teamwork of an American high-tech corporation, pushed by ICT. During the research, we tried to develop a dynamic and practical description of the daily life of workers observed in “technologically dense environments” (Bruni 2005; Bruni & Gherardi 2007), who live habitually during their work activities. The “narrative” of these working environments has fostered understanding the operation of the “technological infrastructure” (Gherardi 2007) of the team in charge of managing the presence of that multinational on social media. So we observed that this technological infrastructure is completely different from those observed in the 90s of XX century by many scholars (Joseph 1994; Heath e Luff 1992; Suchman 1997; 2000; Star 1999; Grosjean 2004). This difference translates almost in an anthropological and social change which is evident in the way they work and represent themselves at work
Merrick, LukeAndrew. "Les Médias sociaux dans la classe de FLE: une (r)évolution pédagogique ?" Thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/22634.
Full textGadek, Guillaume. "Détection d'opinions, d'acteurs-clés et de communautés thématiques dans les médias sociaux." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMIR18/document.
Full textOnline Social Networks have taken a huge place in the informational space and are often used for advertising, e-reputation, propaganda, or even manipulation, either by individuals, companies or states. The amount of information makes difficult the human exploitation, while the need for social network analysis remains unsatisfied: trends must be extracted from the posted messages, the user behaviours must be characterised, and the social structure must be identified. To tackle this problem, we propose a system providing analysis tools on three levels. First, the message analysis aims to determine the opinions they bear. Then, the characterisation and evaluation of user accounts is performed thanks to the union of a behavioural profiling method, the study of node importance and position in social graphs and engagement and influence measures. Finally the step of user community detection and evaluation is accomplished. For this last challenge, we introduce thematic cohesion scores, completing the topological, graph-based measures for group quality. This system is then applied on two corpora, extracted from two different online social media. The first is constituted of messages published on Twitter, gathering every activity performed by a set of 5,000 accounts on a long period. The second stems from a ToR-based social network, named Galaxy2, and includes every public action performed on the platform during its uptime. We evaluate the relevance of our system on these two datasets, showing the complementarity of user account characterisation tools (influence, behaviour and role), and user account communities (interaction strength, thematic cohesion), enriching the social graph exploitation with textual content elements
Savage, Renaud. "L’utilisation de Facebook par la police : l’image de l’efficacité policière à l’ère des sites de réseautage." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34867.
Full textCarayre, Guillaume. "Les relations juridiques entre les territoires décentralisés et les moyens de communications immatérielles." Toulouse 1, 2007. http://www.theses.fr/2007TOU10034.
Full textGirard, Aurélie. "L'intégration des médias sociaux dans les stratégies d'e-GRH : le cas du recrutement." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20158/document.
Full textThis work addresses the issue of the integration of social media in recruitment strategies of organizations. Although the number of recruiters using websites like Facebook, Twitter, Linkedin or Viadeo is constantly growing, both theoretical and practical knowledge of these innovative usages remains limited. In order to better understand these usages and build an appropriate analytical framework, two complementary theoretical fields were mobilized, social capital theory and improvisational theory. Following a preliminary study to refine the initial questioning, four case studies were conducted among two recruitment agencies and two companies that have implemented innovative strategies. Finally, to validate a part of the results and add a prospective vision, a Delphi study was then carried out on a panel of 34 experts.These different studies reveal two main practices developed by organizations: employer brand management and operational recruitment. Social media appear not to be similar but complementary with the previous means of recruitment. They allow organizations to adapt to new applicant behaviors and develop their relational capital. However, their mere usage is not always synonymous with relational approach. In addition, the valuation of tinkering and improvisation proves pertinent to better integrate social media in recruitment strategies. Their integration modifies the place and role of HR professionals in terms of skills, responsibilities and strategic importance. However, this study highlights different challenges to overcome
Debaveye, Julie. "@clacmontréal : émergence et institutionnalisation d'une expertise militante dans les micro-médias." Doctoral thesis, Université Laval, 2013. http://hdl.handle.net/20.500.11794/23980.
Full textThis doctoral thesis provides an examination of the emergence and the institutionalization of an activist expertise on Twitter by the CLAC (Convergence des Luttes Anticapitalistes) and an investigation of the group social and intertextual processing with alternative and global media during the G20 in Toronto (2010) and the Quebecer Student strike (2012). Mixed methods and online exploration are used to build a transformative integrative multidimensional methodology for analysing web hypertextual practices. This research strategy allows for the observation, analysis and interpretation of peer groups mediated practices and enables to formulate research recommendations for methodologies exploring the complexity of new media convergence (Castells, 1998, 1999, 2001; Jenkins, 2006) and the formation of ad hoc publics during political crisis (Bruns, 2007 ; Bruns et al., 2010). Under the theoretical and conceptual position of expertise, activism and hypertext, specific forms of activist communication in micro-media, influence and power dynamics in local public sphere and new modes of contagion of local information on public deliberation main themes and practices (Habermas, 1978, 1987) will be explored. Finally, advantages and limits of the mixed methods approach and directions for future research are discussed.
Dubé, Lisa. "Étude de l'utilisation des médias sociaux au sein d'organisations syndicales du milieu de l'éducation." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/34738.
Full textOver the years, several solutions were put forward in order to slow the decline of the unionization rate and to revitalize trade unions. One of these solutions is the use of information and communication technologies such as the Internet, websites and social media. Trade unions are increasingly adopting social media to communicate and engage with their members and the public, but are they using them adequately and are they fully exploiting their growing popularity? To answer these questions and to gain a comprehensive and nuanced understanding of the phenomenon, we looked at how ten unions in the field of education use social media and we tried to identify its positive impacts on certain aspects of the union life as well as the related constraints and risks. The aspects we chose to focus on are the mobilization and the participation of members and, in a subsidiary way, the recruitment of new members and the acquisition of public support. We therefore conducted semi-directed interviews with people managing social media from ten different Quebec unions. Our exploratory study highlights the significant potential of social media in mobilizing members, but also a great untapped potential regarding the way they are used. -- Keywords: social media, Web 2.0, union renewal, mobilization, participation
Résumé en espagnol
Mousavi, Baygi Seyed Reza. "Three essays on the material enactment of social movements through social media." Thesis, Cergy-Pontoise, Ecole supérieure des sciences économiques et commerciales, 2019. http://www.theses.fr/2019ESEC0001.
Full textIn line with recent interest in social movements in OT and IS literatures and vis-à-vis the increasing digitalization of societies, in this dissertation I study the material enactment of social movements with, through, and by social media. In so doing, instead of separating social media and social movements to study their interactions—a maneuver that forecloses investigation into the situated constitution of both—I adopt a posthumanist performative perspective and shift my analytical gaze on the everyday actions and practices entailed in social media activism. This dissertation contributes to both OT and IS literatures. Specifically, in each essay I develop a practice-based material-discursive understanding of the subject matter that is useful in engaging, investigating, and making sense of phenomena entailed in social media organizing and their consequences. The novelty and relevance for the OT literature comes from attending to the constitutive role of materiality in organizing processes, while, an additional novelty and relevance for the IS literature comes from attending to issues of contestation, politics, and collective agency vis-à-vis social media. Finally, I make a distinctive contribution by attending to the understudied context of right-wing movements
Pruvost, Gaëtan. "Modélisation et conception d'une plateforme pour l'interaction multimodale distribuée en intelligence ambiante." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00805487.
Full textAsdourian, Bruno. "COMMUNICATION RELATION ET MÉDIAS SOCIAUX Étude du cas de la sensibilisation aux feux de forêt." Phd thesis, Université de la Méditerranée - Aix-Marseille II, 2010. http://tel.archives-ouvertes.fr/tel-00573962.
Full textKaroui, Myriam. "Visibilité du capital social à travers les médias sociaux : Etudes de cas sur les dynamiques sociales de l'appropriation d'un outil d'Analyse de Réseaux Sociaux." Phd thesis, Ecole Centrale Paris, 2012. http://tel.archives-ouvertes.fr/tel-00905525.
Full textAltourah, Albaraa. "Hiérarchisation de l'information et "agenda setting" sur Twitter : étude comparée entre la France et le Koweit." Thesis, Lille 3, 2018. http://www.theses.fr/2018LIL3H008/document.
Full textThis doctoral thesis explores the validity of the agenda setting theory in the social media platform of Twitter. The theory has shown how the mass media prioritize information using the "issue salience" to try to influence public opinion. This thesis seeks to determine whether this theory, conceived in an era prior to the advent of digital media, can be applied to Twitter, which is both a mass media source and a selective news media source.This research is conducted in the field of political communication. Two studies have examined the accounts of political personalities and mass media sources present on Twitter in two Twitterspheres, France and Kuwait, during a selected period of the year 2016, corresponding for France to the primaries that preceded the presidential elections. A survey of users of these Twitterspheres completes this analysis.The results showed under what conditions an effect of "agenda setting" can form and create conversations beyond the "filtration bubble" that commands the selective exposure to information
Lacoste, Karine. "Interprétation et implantation de l’innovation au sein de la Société Radio-Canada." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31728.
Full textCharmarkeh, Houssein. "Pratiques médiatiques, usages des médias sociaux et trajectoires migratoires des Somaliens en France et au Canada." Thesis, Paris 3, 2013. http://www.theses.fr/2013PA030099.
Full textTechnologies are omnipresent in our society, from social media, to satellite television and Internet broadcasting and shape the way we live, work, and interact. It has also transformed the international migration, making it possible for migrants to maintain strong ties between their host society and country of origin. Many studies have been conducted on the usage of ICT by migrants in the host country; however, there is limited research on the use of ICT by refugees during their migratory paths. This study focuses on the analysis of media practices and uses of social media by Somali refugees from Somalia to France (Rennes, Angers and Paris). In addition, this field survey is multi-sited and covers the relationship between the media practices and identity reconstruction of Somalis in two Canadian cities, Ottawa and Toronto. Despite the emergence of studies on the Canadian Somali community, very little research exists on the analysis of media practices Somalis, particularly in the domestic context. The methodological approach used in this study is based on an epistemological posture via the tools of critical ethnography and multi-sited. Critical ethnography aims to address the social and economic inequalities in which Somalis live in France and Canada. The results of this research show that the refugees, who are often labelled as being under-equipped with limited knowledge of computers, know how to use social media (Facebook, Youtube) and instant communication tools (Skype, MSN Messenger,VoIP) and information technologies and communication. We will also see how the collective use of YouTube videos, television and radio by Somalis in Canada and France has a complementary role to that of the institutions responsible for safeguarding the memory and transmission of cultural identity. The production and reception of video, radio and television broadcasts of the Somali community symbolize "traces" or efforts to rebuild Somalia. Through detailed analysis of media practices in the context of migration, this study seeks to contribute to the advancement of knowledge on the use of ICT by Somali refugees
Verville, Mélanie. "Usages politiques des médias sociaux et du WEB 2.0 - Le cas des partis politiques provinciaux québécois." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29467/29467.pdf.
Full textLyonnais, Marie-Claude. "Les médias sociaux dans le cadre d'une recherche participative en santé auprès des Inuit du Nunavik." Master's thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/27816.
Full textThis exploratory study aims to provide information about the use of social media as part of a communication strategy within an Inuit community-based participatory health research (CBPR). Thirty semi-structured interviews conducted with Nunavimmiut (Inuit from Nunavik), as well as the content of six Facebook groups and two Facebook pages, were the subject of a thematic analysis. The goal was to better understand the use of social media by Nunavimmiut, and the best methods to improve communication within an Inuit CBPR. The results show that social media, especially Facebook, is an effective tool to reach and involve local people in the research process, but needs to be included in a broader strategy including traditional media. Researchers also need to culturally adapt their use of social media by respecting the social and cultural norms of Inuit to communicate successfully and generate more locally valuable research results. Key words: Inuit, Nunavik, social media, community-based participatory research, health, cross-cultural communication, cross-cultural adaptation
Lee, Sang-Gil. "Médias et expérience de l'espace public : étude sur les usages sociaux du vidéotex résidentiel en France." Paris 5, 1999. http://www.theses.fr/1999PA05H043.
Full textUratnik, Miha. "Le rôle des médias sociaux dans la co-création des utilisateurs et dans l'innovation de service." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL12011/document.
Full textThe pervasive availability of social media is changing how organizations interact with the user in service innovation. However, the explanation how to leverage the co-production and co-creation relationship in interactional service innovation with the social media user is missing. The integration of such interactions reveals a system of knowledge production and dissemination. The system unfolds a configuration of hypothetical interactions, namely the gap between the social media and service innovation networks across different sectors is narrowed with the interactional model and social media user in co-production and co-creation. The emphasis is on how organizations leverage the non-technological innovation and complex meta-change with social media in different environments. The research involves the exploratory sequential research; qualitative leading to the quantitative methodology. In qualitative research five companies were investigated during a long-term span. A particular qualitative methodology was used for the validation of the interactional model. However, the results lead to the quantitative validation and testing of hypotheses as theorized in the qualitative step. Companies leverage social media user for interactional service innovation with different specifics and co-produce or co-create value. The findings are hypothesized on a larger sample to confirm/refute different hypotheses. Although social media seem significant for co-creation, the findings do not follow suit. Companies do not employ the possibilities of co-creation with social media; they rather co-produce value with scarce unique interactions with social media users across different sectors
Rouch, Jean-Pierre. "Instants d'images : approches sociologiques de l'image, du temps et des rythmes sociaux." Toulouse 2, 1996. http://www.theses.fr/1996TOU20012.
Full textThis reserarch questions the connection between media and society throu through the way a new social and global time appears and is socially constructed, breaking with the dominance of modern time. With this aim in view, the thesis chooses to observe two different times located in two different levels of the society. The first part observes and characterizes the temporal system of tv frames, then exends it to zapping, regarded as its practical application. The second part describes individual systems of actions and representations of time, through several atypical occupations and timetables. This double study allows to draw from it a structural homology between the two kinds of time. It permits to describe the emergence of common modes of time. Of a common structural principle (the centrality of the subject who articulates the multiplicity of times) and a common dynamic principle (the delinearisation of temporalities) finally, the homology allows to extend these observations to the appearance of a new social global time that includes time of media and everyday social time
Narcisse, Nicolas. "L'entreprise face au tribunal de l'opinion : modélisation des débats sociaux impliquant les entreprises." Paris 4, 2002. http://www.theses.fr/2002PA040187.
Full textSedel, Julie. "La banlieue comme enjeu de lutte symbolique : contribution à l'analyse des relations entre médias et champs sociaux." Paris, EHESS, 2007. http://www.theses.fr/2007EHES0074.
Full textThis PHD analyses the media coverage of poor districts through the study of lower-class urban neighbourhoods and of the work of journalists'. The first part shows the combined effects of the transformations of poor areas (through monographs realized in two social-housing areas in the suburb of Paris) and of the journalistic field on the production of a dominant representation of « trouble-spot ». The second part looks at how the journalists work in these areas and the way their sources (policemen, sociologists, municipalities, associative actors, social workers, and so forth) attempt to become part of the production process of news items. The third part deals with the different procedures implemented in two council block areas, in the aftermath of journalistic scandals in which they are involved. In order to deal with journalists, the reactions range from creation of communication cells by the local municipalities, attempt at controlling the speech of the young generation through the elder brothers, local associations' concerted endeavours at offering a unified vision to the media, and even cases of physical aggressions against journalists in order to forbid their access to the area. It is because the media provide powerful instruments in the making of reputations that such controlling reactions occur ; such a phenomenon illustrates the-paradox according to which the more media coverage a domain receives, the less journalists themselves produce the information
Stella, Elie. "L’adaptation du droit pénal aux réseaux sociaux en ligne." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0344.
Full textOnline social networks demonstrate the transcription, as well as the intensification, of human relationships on a digital level. More generally, the apparition and widespread use of these sites reveal a profound evolution of social relationships that began in the mid-2000s. Consequently, criminal law, as a “mirror of civilisation” has necessarily been impacted to the extent of warranting its adaptation.These websites undeniably constitute a new legal arena within which delinquent online behaviour is present. For the most part, online social networks are merely a new medium for infringements, to which pre-existing criminal offences are perfectly designed to apply, should they arise. However, new forms of infringements have emerged from these places of exchange, highlighting the structural shortcomings within criminal law, that manifest as the inability of pre-existing criminal offences to cover these new forms of infringements. Criminal law has therefore adapted through the creation of new criminal offences, demonstrating the profound evolution of the protection of privacy, identity and more generally, private life, under criminal law.Social networks also raise criminal law issues with regard to the suppression of delinquent online behaviour that can be found on them. In this case, the regimes of criminal responsibility applicable to different social network players, users and operators, demonstrate a certain unsuitability which manifests itself as the ineffectiveness of criminal law on social networks. The solution therefore consists of developing, or rather diversifying the response to emerging offences and providing a framework for the regulation of content in collaboration with the administrative authorities. A new regime of responsibility thus emerges, applicable to the main digital sharing platforms, that progressively promotes a principle of compliance within them. Ultimately, criminal law adapts to online social networks as much as social networks adapt to criminal law
Foisy, Marc. "Les liens entre les médias citoyens et les mouvements sociaux au sein de la sphère publique alternative." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25798/25798.pdf.
Full textBrûlé, Elodie. "L' impact institutionnel d'un mouvement social : Analyse des évènements médiatiques menés par les organisations anti - OGM." Paris 2, 2009. http://www.theses.fr/2009PA020042.
Full textGarcia, Guillaume. "Les causes des « sans » à l’épreuve de la médiatisation : la construction médiatique des mobilisations sociales émergentes : enjeux et perspectives." Paris 9, 2005. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=2005PA090072.
Full textAssuming on the fact that the analysis of the interactions between social movements and media, however essential to the comprehension of the processes of social problems construction, was until now a peripheral object of interest, this work proposes to deal with these problems starting from the study of the relations between “low resources groups” and TV journalists. On the basis of pluri-methodological and comparative ground investigations, this dissertation proposes to question the forms of mediatic politisation or depolitization of the homeless persons, the illegals immigrants and the unemployed people causes, in the context of the neoliberal and repressive evolutions of the Welfare state. While applying from a critical point of view the framing analysis perspective, this research opens with a range of topics returning as well to the contemporary transformations of the practices of journalism or the militancy as to the effects of media information on the audience
Garcia, Naddaf Fernando. "Réseaux sociaux d'internet : pratiques électorales et usages politiques de la classe politique chilienne." Thesis, Paris 8, 2016. http://www.theses.fr/2016PA080016/document.
Full textThe use of social networks in Chile has arise a strong utopian and technological speech, which has particularly influenced social mobilizations during the last years. At the same time, the country has witnessed the emergence and development of social applications as Facebook or Twitter. With 17 millions of inhabitants, Chile - which is credited to be the 4th country of the world having more use of social networks per capita- has had in its recent history a distinctive democratic process which has characterized by a special political use of mass media. The interest shown by the chilean political elite towards the social media in the recent years is having an effect over the democratic practice. Hence, this thesis had the purpose to deepen the knowledge of this type of use during electoral process. Exploratory approaches were favored to observe the virtual footprints of the elite on the social media. Then, we followed the traces of instrumentalization of mass media with electoral means. An important part of the information gathered was risen from personal interviews with presidential candidates. The conclusions permitted to identify different types of uses, linked to the emplacements of the political actors within the struggle for institutional power. It was also stablished an analogy of the uses that were identified with other mass media from an historical perspective. Finally, we identified elements of instrumental rationality which may lead towards normalization and merchantilization of this social space, which has evident impact in the political practice in Chile
Simeoni, Buhay Corinne. "La Représentation Sociale du Réfugié chez les Intervenants Sociaux au Canada: l'Effet Miroir." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38597.
Full textHerteliu, Agnos Millian. "Usages et pratiques des médias sociaux numériques et appropriation de la culture numérique dans les organisations semi-fermées." Thesis, Montpellier 3, 2018. http://www.theses.fr/2018MON30027.
Full textThe present doctoral thesis is focused on the mediatisation of religion and the use of digital social networks in the professional culture of the clergy as well as on the integration of digital innovation in semi-closed religious organizations. The problematic of open versus closed systems in relation to media is approached by Stout (2012), who suggests that clergy and parishioners ought to “develop critical skills to assess religious messages wherever they appear” (Stout, 2012, p. 66). He analyses the capacity and willingness of religious communities to establish their own media, whether it’s traditional or new media, on the one hand, and on the other hand, the degree of openness when it comes to exposure to secular media, which includes products and content of pop culture, thus setting-up the frame of discussion for the use of media in semi-closed religious organizations.Furthermore, this research is applied to the case of the Romanian Seventh-Day Adventist Church (SDAC) clergy and believers and intends to highlight how the Internet and new media are experienced by Adventist pastors in their religious activity as well as by Adventist believers in their everyday religious life. Communication of doctrines, religious and spiritual teachings, in written or verbal form are the main activities of the both pastoral and parishioners’ groups. The research also shows a significant pro-technological mentality of the SDAC throughout the last century, and its motivation – related to the opportunity to spread the evangelical message
Bousselmi, Salah. "Ambush marketing, médias sociaux et la Coupe du Monde 2019 de football en France : athlètes et non-sponsors." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42094.
Full textBenrahhal, Serghini Zineb. "La socio-discursivité comme matérialité de l'espace public : étude de cas : la médiatisation de l'émergence et de l'institutionnalisation du mouvement "Ni putes ni soumises"." Lille 3, 2008. http://www.theses.fr/2008LIL30033.
Full textThe issus tackled in this study is the materiality of the public sphere, its nature, the modalities and processes which constitute its configuration. The issue is approached through a study of the communicative action of social movements as agents of social change in the public sphere. The criterion which presided over my choice of "Ni putes ni soumises" as a study case, and the compilation of the corpus is due to the agenda of the movement and its novelty which articulates feminism and ethnicity an unprecedented instance in the history of French feminism. The issue of agency of social movements and the media is premised on the fact that both are involved in the construction of a social discourse. From such a premise I attempted to identify the processes and mechanisms through which individuals and communities living in society generate and confer sense. The answer to such a question is my main objective in this study as I attempt to give consistency to such a process by introducing the notion of discursivity which constitutes, in my opinion, the materiality of the public sphere as conceived of in this study. Such an approach is to be viewed as a heuristic attempt to materialize discursivity in the public sphere a concept that would otherwise remain vague and abstract
Liu, Xueliang. "Fouille d'informations multimédia partagées orienté événements." Thesis, Paris, ENST, 2012. http://www.theses.fr/2012ENST0071/document.
Full textThe exponential growth of social media data requires scalable, effective and robust technologies to manage and index them. Event is one of the most important cues to recall people’s past memory. With the development of Web 2.0, many event-based information sharing sites are appearing online, and a wide variety of events are scheduled and described by several social online services. The study of the relation between social media and events could leverage the event domain knowledge and ontologies to formulate the raised problems, and it could also exploit multimodal features to mine the patterns deeply, hence gain better performance compared with some other methods. In this thesis, we study the problem of mining relations between events and social media data. There are mainly three problems that are well investigated. The first problem is event enrichment, in which we investigate how to leverage the social media to events illustration. The second problem is event discovery, which focuses on discovering event patterns from social media stream. We propose burst detection and topic model based methods to find events from the spatial and temporal labeled social media. The third problem is visual event modeling, which studies the problem of automatically collecting training samples to model the visualization of events. The solution of collecting both of the positive and negative samples is also derived from the analysis of social media context. Thanks to the approaches proposed in this thesis, the intrinsic relationship between social media and events are deeply investigated, which provides a way to explore and organize online medias effectively
Pruvost, Gaëtan. "Modélisation et conception d’une plateforme pour l’interaction multimodale distribuée en intelligence ambiante." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112017/document.
Full textThis thesis deals with ambient intelligence and the design of Human-Computer Interaction (HCI). It studies the automatic generation of user interfaces that are adapted to the interaction context in ambient environments. This problem raises design issues that are specific to ambient HCI, particularly in the reuse of multimodal and multidevice interaction techniques. The present work falls into three parts. The first part is an analysis of state-of-the-art software architectures designed to solve those issues. This analysis outlines the limits of current approaches and enables us to propose, in the second part, a new approach for the design of ambient HCI called DAME. This approach relies on the automatic and dynamic association of software components that build a user interface. We propose and define two complementary models that allow the description of ergonomic and architectural properties of the software components. The design of such components is organized in a layered architecture that identifies reusable levels of abstraction of an interaction language. A third model, called behavioural model, allows the specification of recommendations about the runtime instantiation of components. We propose an algorithm that allows the generation of context-adapted user interfaces and the evaluation of their quality according to the recommendations issued from the behavioural model. In the third part, we detail our implementation of a platform that implements the DAME approach. This implementation is used in a qualitative experiment that involves end-users. Encouraging preliminary results have been obtained and open new perspectives on multi-devices and multimodal HCI in ambient computing
Dubé, Stéphanie. "Pédophilie dans la presse écrite québécoise : la construction d'un problème social récurrent." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41554.
Full textKihlgren, Grandi Lorenzo. "Créer la solidarité transnationale à travers le visuel à l’ère des médias sociaux. Une enquête sur la seconde révolution égyptienne." Thesis, Paris, EHESS, 2017. http://www.theses.fr/2017EHES0179.
Full textIs it possible to build a transnational sense of solidarity across the Internet with regards to strictly national political demands? What links can arise and be deployed towards achieving solidarity? What are the technological devices and communication spaces available, and how does information spread and find its audience? Finally, how is it possible to measure the impact of such dynamics?This thesis attempts to answer these questions in light of the second Egyptian Revolution of 2013 that led to the fall of the Morsi government. In a national climate marked by strong political polarization, this revolution was accompanied by a wave of online activism: virtual spaces of information, coordination and debate unfolded within social networks. Among these spaces, some were intended to elicit a desire for solidarity from a foreign audience distant from the political events in Egypt and its issues.To help understand such transnational communication, this work combines a socio-historical portrait of the Egyptian Revolution’s young protagonists with an analytical description of the visual communication mechanisms of Operation Egypt – a Facebook page that had vast impact in virtual spaces. This dual perspective responds to a desire to grasp the root causes of the online activism of Egypt’s “connected” youth in order to jointly apprehend a historical context particularly marked by a desire for political change, as well as the advent of a closely linked encounter between juvenile protest and new information technology. Finally, this thesis focuses on the construction of connected transnational solidarity.The fieldwork presents a mixed, qualitative and quantitative experimental approach. On the qualitative side, a semiological approach has been developed to analyze the visual works of protest expressly conceived to transnationally circulate on social media. On the quantitative side, the data collected is intended to document the scope of the various forms of national and international virtual interaction generated by this content.Finally, this study allows us to integrate a reflection on the function of this typology of virtual spaces as the media of public discussion and their contribution to the emergence of a transnational public sphere