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Dirkson, A. (author), den Hollander, D. (author), Verberne, S. (author), Desar, I. (author), Husson, O. (author), van der Graaf, W.T.A. (author), Oosten, A. (author), Reyners, A.K.L. (author), Steeghs, N. (author), van Loon, W. (author), van Oortmerssen, G. (author), Gelderblom, H. (author), Kraaij, W. (author)Background: Increasingly, social media is being recognized as a potential resource for patient-generated health data, for example, for pharmacovigilance. Although the representativeness of the web-based patient population is often noted as a concern, studies in this field are limited. Objective: This study aimed to investigate the sample bias of...article 2022
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van den Bergh, R.E.C. (author), Verbiest, S.E. (author), van de Ven, H.A. (author)Deze notitie beschrijft de geleerde lessen die zijn opgedaan tijdens het werven van respondenten (platformwerkers) via social media voor deelname aan een vragenlijst over platformarbeid. Deze notitie betreft een vervolg op het rapport uit 2020 (Verbiest et al., 2020) over de geleerde lessen van kwalitatief onderzoek naar de ontwikkeling van een...report 2021
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de Vries, A. (author), Wieland, F. (author)Om incidenten in hun wijk te melden kunnen burgers in de toekomst BART! gebruiken, een digitaal meldingsplatform waarmee je buren, gemeente en politie op de hoogte brengt. De techniek achter BART! (Burger Alert Real Time) is getest in een proeftuin in Den Haag. Nu is het zaak om het systeem ook bij andere gemeenten te gaan beproeven.article 2020
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Schoonhoven, S. (author)Zanger Dotan is niet de enige die het spookaccount heeft ontdekt als middel om zichzelf te promoten. Van boze exen tot grote bedrijven en de Russen: steeds vaker duiken trollen, nepaccounts en sokpoppen op. De bot is big business. "Straks kan niemand meer zien wat echt is of nep."article 2018
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- van Gaalen, E. (author), Segers, M. (author) article 2018
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Kayal, A. (author), Brinkman, W.P. (author), Neerincx, M.A. (author), Birna van Riemsdijk, M. (author)Social commitments (SCs) provide a flexible, norm-based, governance structure for sharing and receiving data. However, users of data sharing applications can subscribe to multiple SCs, possibly producing opposing sharing and receiving requirements. We propose resolving such conflicts automatically through a conflict resolution model based on...article 2018
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Kayal, A. (author), van Riemsdijk, M.B. (author), Neerincx, M.A. (author), Brinkman, W.P. (author)Mobile location-sharing technology is increasingly being used by parents to locate their children. Research shows that these technologies may pose risks to important user values such as privacy and responsibility, while they aim to promote others such as family security. As a solution, we proposed the use of Social Commitment (SC) models for...article 2018
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Langley, D.J. (author), Tel, J.W. (author)Protests that target firms’ socially irresponsible behavior are increasingly organized via digital media. This study uses two methods to investigate the effects that online protests and mitigating firm responses have on shareholders’ and consumers’ evaluation. The first method is a financial analysis that includes an event study which measures...conference paper 2017
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Broekman, C. (author), Vries, A. (author), van Berlo, M. (author)Nieuwe communicatiemiddelen zoals sociale media bieden politie en justitie grote kansen. Maar zij zien zich ook voor uitdagingen gesteld. Zo kunnen criminelen via het Dark Web terrorisme financieren en op verzoek misdaden plegen. Hoe gaan veiligheidsinstanties met deze kansen en uitdagingen om?article 2017
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Niamut, O.A. (author), Mu, M. (author), Denazis, S. (author), Race, N. (author)Social telemedia is a cross-breeding of social networks and networked media that allows users to capture and share live events collaboratively on mobile devices. © 2016 IEEE.article 2016
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Forrester, B. (author), den Hollander, K. (author)Social Media (SM) is a relatively new phenomenon. Intelligence agencies have been struggling to understand how to exploit the social pulse that flows from this source. The paper starts with a brief overview of SM with some examples of how it is being used by adversaries and how we might be able to exploit this usage. Often treated as another...conference paper 2016
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Smailhodzic, E. (author), Boonsta, A. (author), Langley, D.J. (author)Social media enable patients to communicate with a large number of their peers, share experiences, and provide each other with emotional and informational support. In this way, social media using patients develop a new logic in healthcare, which we propose as social media logic. This raises the question what this social media logic means and how...conference paper 2016
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Smailhodzic, E. (author), Boonstra, A. (author), Langley, D.J. (author)Social media represent specific types of technologies that are end-user driven and end-users are able to drive disruptive change giving little time to organizations to react. With rapid and powerful emergence of social media communities in healthcare, this sector is faced with new and alternative avenues to the traditional healthcare provision....conference paper 2016
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Peetz, M.H. (author), de Rijke, M. (author), Kaptein, R. (author)In reputation management, knowing what impact a tweet has on the reputation of a brand or company is crucial. The reputation polarity of a tweet is a measure of how the tweet influences the reputation of a brand or company. We consider the task of automatically determining the reputation polarity of a tweet. For this classification task, we...article 2016
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Smailhodzic, E. (author), Hooijsma, W. (author), Boonstra, A. (author), Langley, D.J. (author)Background: Since the emergence of social media in 2004, a growing percentage of patients use this technology for health related reasons. To reflect on the alleged beneficial and potentially harmful effects of social media use by patients, the aim of this paper is to provide an overview of the extant literature on the effects of social media use...article 2016
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Roos, B. (author), van Buul-Besseling, K. (author), Streefkerk, J.W. (author), Neef, M. (author)In this paper, we present a model that identifies seven success factors for the development of crowdsourcing platforms for disaster recovery. This model integrates two existing theories. The first theory focuses on success factors of crowdsourcing initiatives in general. The second theory states how disaster relief operations can improve when...conference paper 2015
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Mu, M. (author), Simpson, S. (author), Race, N. (author), Niamut, O.A. (author), Koot, G. (author), Kaptein, A.M. (author), Taal, J. (author), Mori, L. (author)An online multimedia storytelling ecosystem comprised of user applications, a collaborative storyauthoring engine, social context integration, and socially aware media services offers a mdium for inormation sharing and social storytelling about live events. User-generated audio-visual content is becoming the most popular medium for information...article 2015
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Montagud, M. (author), Boronat, F. (author), García-Pineda, M. (author), Niamut, O.A. (author)The mass adoption of Social Media together with the proliferation and widely usage of multi-connected companion devices have tremendously transformed the TV/video consumption paradigm, opening the door to a new range of possibilities. This Special Issue has aimed at analyzing, from different point of views, the impact of Social Media and social...article 2015
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Dijkstra, S.S. (author), Niamut, O.A (author), Efthymiopoulos, N. (author), Denazis, S. (author), Race, N. (author), Mu, M. (author), Taal, J. (author)With the growing popularity of social networks, online video services and smart phones, the traditional content consumers are becoming the editors and broadcasters of their own stories. Within the EU FP7 project STEER, project partners have developed a novel system of new algorithms and tool sets that extract andanalysesocial informatics...article 2015
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van Maanen, P.P. (author), van der Vecht, B. (author)The aim of this study is to better understand social influence in online social media. Therefore, we propose a method in which we implement, validate and improve individual behavior models. The behavior model is based on three fundamental behavioral principles of social influence from the literature (i.e., Cialdini’s principles): (1) consistency...article 2014