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Featured researches published by Stefania Matei.


international conference on human-computer interaction | 2013

Digital Badges: Signposts and Claims of Achievement

Răzvan Rughiniş; Stefania Matei

We discuss digital badges in education, focusing on two functions of badge architectures: mapping a learning system and offering a vocabulary to present one’s achievements. We have designed, implemented and evaluated two badge architectures; our research findings support the conclusion that students see these medals less as extrinsic motivations than as signposts that point out relevant learning targets. Also, because trainers and students define badges mainly as fun, locally relevant prizes, there is little concern for how they can be used to communicate merits outside the learning community. Badge architectures can be designed to support local or public reputations; if public visibility is desired, the system should assist holders’ work of claiming merit.


international conference on control systems and computer science | 2017

Big Data, Old Users, Personal Worlds: A Survey of Challenges and Resistance to Big Data Analytics in the EU

Stefania Matei; Cosima Rughinis; Razvan Rughinis

Organizations make extensive use of Big Data to classify and profile users, in order to effectively personalize their online messages. Big Data is also increasingly relied on as a photograph of society, creating expectations of an increasingly more accurate predictive science. Yet, there are systemic challenges in using Big Data as a comprehensive source of information, and there is also public resistance. We analyze Eurobarometer survey data from April 2016 to identify actual socio-demographical limitations of online traces, charting public awareness and attitudes towards the use of online information for content personalization across the European Union.


iberian conference on information systems and technologies | 2014

Computer-supported collaborative accounts of major depression: Digital rhetoric on Quora and Wikipedia

Cosima Rughinis; Bogdana Huma; Stefania Matei; Razvan Rughinis

We analyze digital rhetoric in two computer-supported collaborative settings of writing and learning, focusing on major depression: Wikipedia and Quora. We examine the procedural rhetoric of access to and interaction with information, and the textual rhetoric of individual and aggregated entries. Through their different organization of authorship, publication and reading, the two settings create divergent accounts of depression. Key points of difference include: focus on symptoms and causes vs. experiences and advice, use of lists vs. metaphors and narratives, a/temporal structure, and personal and relational knowledge.


international conference on computer supported education | 2014

źSmoking Does Not Make You Happyź

Rźzvan Rughinis; Stefania Matei; Cosima Rughinis

We analyze in-depth five smoking cessation apps on Android OS, examining how they teach users to quit smoking and what they learn from users. Apps advise would-be ex-smokers how to perceive the world, how to deal with their emotions, and how to act on their bodies and environment. Still, they learn little from their users, and even less from the scientific literature on smoking cessation. We discuss the potential for improved customization of advice to users’ profiles and we propose a simple inventory of online scientific resources as a starting point for developers looking to create better apps.


international conference on control systems and computer science | 2013

The Negotiation of Knowledge and Knowing: The Challenge of Using Wiki Technology in Computer Supported Collaborative Learning

Razvan Deaconescu; Stefania Matei


international conference on control systems and computer science | 2013

Learning through Massively Co-Authored Biographies: Making Sense of Steve Jobs on Wikipedia through Delegated Voice

Cosima Rughinis; Stefania Matei


iberian conference on information systems and technologies | 2014

Computer-supported collaborative questioning. Regimes of online sociality on Quora

Razvan Rughinis; Alina Petra Marinescu-Nenciu; Stefania Matei; Cosima Rughis


International Journal of Engineering Pedagogy (iJEP) | 2015

Badge Architectures as Tools for Sense-Making and Motivation in Engineering Education

Razvan Rughinis; Stefania Matei


international conference on human-computer interaction | 2014

Refreshing Quantification and other Ploys to Give Up the Habit - A Repertoire of Relations, Identities, and Rhetorical Devices in Smoking Cessation Applications.

Stefania Matei; Cosima Rughinis; Razvan Rughinis


international conference on computer supported education | 2014

“Smoking Does Not Make You Happy” - Unlearning Smoking Habits Through Mobile Applications on Android OS

Razvan Rughinis; Stefania Matei; Cosima Rughinis

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Razvan Rughinis

Politehnica University of Bucharest

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Alina Petra Marinescu Nenciu

Politehnica University of Bucharest

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Răzvan Rughiniş

Politehnica University of Bucharest

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Rźzvan Rughinis

Politehnica University of Bucharest

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Bogdana Huma

Loughborough University

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