Computer Supported Cooperative Work (CSCW)

Massively distributed authorship of academic papers

by Marco Lazzari

Bill Tomlinson, Paul, Eric P. S. Baumer, Donald J. Patterson, Joseph Corneli, Martin Mahaux, Syavash Nobarany, Marco Lazzari, Birgit Penzenstadler, Andrew W. Torrance, David J. Callele, Gary M. Olson, Six Silberman, Marcus Ständer, Fabio Romancini Palamedi, Albert Ali Salah, Eric Morrill, Xavier Franch, Florian 'Floyd' Mueller, Joseph 'Jofish' Kaye, Rebecca W. Black, Marisa L. Cohn, Patrick C. Shih, Johanna Brewer, Nitesh Goyal, Pirjo Näkki, Jeff Huang, Nilufar Baghaei, Craig Saper
"Massively distributed authorship of academic papers"
Proceedings of Alt.Chi at the 30th ACM conference on Human factors in computing systems (CHI 2012), Austin, TX, USA, 2012

Wiki-like or crowdsourcing models of collaboration can provide a number of benefits to academic work. These techniques... more Wiki-like or crowdsourcing models of collaboration can provide a number of benefits to academic work. These techniques may engage expertise from different disciplines, and potentially increase productivity. This paper presents a model of massively distributed collaborative authorship of academic papers. This model, developed by a collective of thirty authors, identifies key tools and techniques that would be necessary or useful to the writing process. The process of collaboratively writing this paper was used to discover, negotiate, and document issues in massively authored scholarship. Our work provides the first extensive discussion of the experiential aspects of large-scale collaborative research.

Trusting Tweets: The Fukushima Disaster and Information Source Credibility on Twitter

by Robert Thomson

Proceedings of the 9th International ISCRAM Conference – Vancouver, Canada, April 2012, L. Rothkrantz, J. Ristvej and Z. Franco, eds.

This paper focuses on the micro-blogging service Twitter, looking at source credibility for information shared in... more This paper focuses on the micro-blogging service Twitter, looking at source credibility for information shared in relation to the Fukushima Daiichi nuclear power plant disaster in Japan. We look at the sources, credibility, and between-language differences in information shared in the month following the disaster. Messages were categorized by user, location, language, type, and credibility of information source. Tweets with reference to third-party information made up the bulk of messages sent, and it was also found that a majority of those sources were highly credible, including established institutions, traditional media outlets, and highly credible individuals. In general, profile anonymity proved to be correlated with a higher propensity to share information from low credibility sources. However, Japanese-language tweeters, while more likely to have anonymous profiles, referenced low-credibility sources less often than non-Japanese tweeters, suggesting proximity to the disaster mediating the degree of credibility of shared content.

Η ποιότητα της αλληλεπίδρασης καθηγητών Φυσικής Αγωγής σε ένα ασύγχρονο εξ αποστάσεως πρόγραμμα επιμόρφωσης μέσω ιστολογίου.

by Maria Maheridou

Μαχαιρίδου, Μ., Αντωνίου, Π., Αυγερινός, Α. & Κουρτέσης, Θ. Published in i-teacher (2011).

ΠΕΡΙΛΗΨΗ
Σκοπός της παρούσας εργασίας ήταν η ποιοτική αξιολόγηση της αλληλεπίδρασης, που αναπτύχθηκε κατά τη... more ΠΕΡΙΛΗΨΗ
Σκοπός της παρούσας εργασίας ήταν η ποιοτική αξιολόγηση της αλληλεπίδρασης, που αναπτύχθηκε κατά τη συνεργασία 19 εν ενεργεία καθηγητών Φυσικής Αγωγής (ΚΦΑ), οι οποίοι παρακολούθησαν ένα ασύγχρονο εξ Αποστάσεως (εξΑπ) επιμορφωτικό πρόγραμμα,  με θέμα την αποτελεσματική διδασκαλία της Φυσικής Αγωγής. Μετά την ολοκλήρωση της επιμόρφωσης, διενεργήθηκε ανάλυση περιεχομένου στα γραπτά μηνύματα που αναρτούσαν οι ΚΦΑ στο ιστολόγιο, το οποίο αποτέλεσε το ηλεκτρονικό μαθησιακό τους περιβάλλον. Εφαρμόσθηκε το «Μοντέλο Ανάλυσης Αλληλεπίδρασης» (Gunawardena, Lowe & Anderson, 1997) και βρέθηκε, ότι το μεγαλύτερο ποσοστό των μηνυμάτων (46.23%) αφορούσε το διαμοιρασμό και σύγκριση πληροφοριών (φάση Ι), ενώ μικρότερο ποσοστό (16.08%) κωδικοποιήθηκε στη φάση ανακάλυψης και εξερεύνησης ασυνεπειών σε ιδέες, έννοιες, ισχυρισμούς (φάση ΙΙ). Ένα σημαντικό ποσοστό μηνυμάτων (22.11%) κωδικοποιήθηκε στη φάση διαπραγμάτευσης του νοήματος και συν-οικοδόμησης της γνώσης (φάση ΙΙΙ), ενώ τα ποσοστά που κωδικοποιήθηκαν στις δύο τελευταίες μεταγνωστικές φάσεις του μοντέλου (φάση ΙV και φάση V) ήταν σημαντικά χαμηλότερα (10.05% και 5.52%, αντίστοιχα).

Coordinating Activities in Collaborative Environments: A High Level Petri Nets Based Approach

by Ivan Ricarte

Co-authored with Alberto Raposo and Léo Magalhães. Published in SCI'2000.

The coordination of interdependencies among activities in collaborative environments is a very important and difficult... more The coordination of interdependencies among activities in collaborative environments is a very important and difficult task. In this paper we present a set of coordination mechanisms for the specification and control of interaction among collaborative activities. To model these mechanisms, we use high level Petri nets, which have proven to be an adequate approach to evaluate the behavior of a computer supported collaborative system before its implementation.

Petri nets based coordination mechanisms for multi-workflow environments

by Ivan Ricarte

Co-authored with Alberto Raposo and Léo Magalhães. Published in the International Journal of Computer Systems Science and Engineering, 2000

The coordination of cooperative workflows occurs in parallel to the definition of a common communications... more The coordination of cooperative workflows occurs in parallel to the definition of a common communications infrastructure among organizations. In this paper, we present a library of coordination mechanisms modeled with Petri Nets. These mechanisms specify and control the interaction between workflow processes. The separation between activities and dependencies, managed by the coordination mechanisms, allows the reuse of these mechanisms in other environments and also the use of different coordination policies in the same environment.

Coordination of Collaborative Activities: A Framework for the Definition of Tasks Interdependencies

by Ivan Ricarte

Co-authored with Alberto Raposo, Léo Magalhães and Hugo Fuks. Published in the Seventh International Workshop on Groupware, 2001

The coordination of interdependencies between tasks in collaborative environments is a very important and difficult... more The coordination of interdependencies between tasks in collaborative environments is a very important and difficult endeavor. The separation between tasks and interdependencies allows for the use of different coordination policies in the same collaborative environment by changing only the coordination mechanisms that control the interdependencies. This paper presents a framework for the definition of interdependencies that frequently occur in collaborative activities. By means of a clear characterization of interdependencies, it is possible to identify coordination mechanisms to manage them, opening the way toward a powerful coordination tool capable of encompassing a wide range of collaborative applications. An implementation of the coordination model of a collaborative virtual environment based on the proposed framework is given as example.

Using Fuzzy Petri Nets to Coordinate Collaborative Activities

by Ivan Ricarte

Co-authored with Alberto Raposo, André Coelho, and Léo Magalhães. Published in IFSA/NAFIPS World Congress, 2001.

This paper presents a fuzzy Petri net based approach suitable for the modeling of flexible coordination mechanisms to... more This paper presents a fuzzy Petri net based approach suitable for the modeling of flexible coordination mechanisms to deal with temporal interdependencies between collaborative tasks. Such approach is based on an extension of the Generalized Fuzzy Petri Net model, including the notion of time for the execution and synchronization of these tasks. A scenario of study is described, indicating the suitability of the proposal.

The Collaborative Work Concept and the Information Systems Support: Perspectives for and from Manufacturing Industry

by António B. Moniz

Published in: Technikfolgenabschätzung – Theorie und Praxis 2 16 (2007): pp. 49-57.

Most of the discussion and controversy on organisation of work concepts has been referenced to the manufacturing... more Most of the discussion and controversy on organisation of work concepts has been referenced to the manufacturing industry along the 20th century: it started with the concept of “scientific management” from Taylor, and continued with the new ideas on the importance of human factors as Mayo pointed out in the 1930s. Immediately after the 2nd World War Friedmann studied the human problems related to new manufacturing technologies and automation. And the late 1950 and 1960s were decades of strong debate on the socio-technics with the research at Tavistock Institute of London and the emergence of national programmes on new forms of work organisation.
At the end of the last century the concept of collaborative work was developed together with the definition(s) of information systems and organisational design. However, the interest came from other production activities, like the services. This article analyses the approaches developed on these debates on the collaborative work and information system and its application to the manufacturing industry.

Social Cooperation Within Virtual Worlds: Old Social Phenomena Emerging in New Environments

by Andrei Cosmin DECU

Co-authored with Diana Constantinescu; presented at the international conference "Reason in Contemporary Public Space" (Bucharest, Romania, 2008)

The world we live in is expanding its borders by letting the "virtual" become part of our lives. As new... more The world we live in is expanding its borders by letting the "virtual" become part of our lives. As new technologies emerge, virtual communication is taking over step by step and more and more virtual features become an important part of our life.

In this article we aim to prove that virtual worlds provide a playground for social engineers and philosophers, for several reasons: firstly, virtual worlds offer confirmations of social theories of cooperation – they illustrate that cooperation among individuals emerges spontaneously where there are no established forms of governance and decision; secondly, there are several differences between the real and the virtual worlds that render the latter a medium where new conceptions could be
created; and lastly, virtual worlds give us insight regarding the state of nature that one supposes individuals were in when they established the founding principles of society, governance and law (in social contract theories).

Multipresence-enabled mobile spatial audio interfaces

by Owen Noel Newton Fernando

Mobile telephony offers an interesting platform for building multipresence-enabled applications that utilize the phone... more Mobile telephony offers an interesting platform for building multipresence-enabled applications that utilize the phone as a social or commercial assistant. The main objective of this research is to develop multipresence-enabled audio windowing systems for visualization, attention, and privacy awareness of narrowcasting (selection) functions in collaborative virtual environments (CVEs) for mobile devices such as 3rd- and 4th-generation mobile phones. Mobile audio windowing system enhances auditory information on mobile phones and encourages modernization of office- and mobile-based conferencing.

Active environments: Sensing and responding to groups of people

by Joe McCarthy

Promoting awareness of work activities through peripheral displays

by Joe McCarthy

Proactive displays: Supporting awareness in fluid social environments

by Joe McCarthy

Digital backchannels in shared physical spaces: attention, intention and contention

by Joe McCarthy

MusicFX: an arbiter of group preferences for computer supported collaborative workouts

by Joe McCarthy

Pocket RestaurantFinder: A situated recommender system for groups

by Joe McCarthy

Augmenting the social space of an academic conference

by Joe McCarthy

Digital backchannels in shared physical spaces: experiences at an academic conference

by Joe McCarthy

Proactive Displays & the Experience UbiComp Project

by Joe McCarthy

Narroweasting Operations for Multipresent Chatspace Avatars in Collaborative Virtual Environments

by Owen Noel Newton Fernando

Our group is exploring interactive multi- and hypermedia, especially regarding virtual and mixed reality groupware... more Our group is exploring interactive multi- and hypermedia, especially regarding virtual and mixed reality groupware systems. The apparent paradoxes of multipresence, having avatars in multiple places or spaces simultaneously, are resolvable by an "autofocus" feature, which uses reciprocity, logical exchangability of source and sink, to project overlaid soundscapes and simulate precedence effect to consolidate the audio display. Our goal is to develop user interfaces to control source.RAR.sink transmission in synchronous groupware (like teleconferences, chatspaces, virtual concerts, etc.) We have developed two interfaces for narrowcasting (selection) functions in a collaborative virtual environments (CVEs): for a workstation-style WIMP (windows/icon/menu/pointer) and GUI (graphical user interface), and for a networked mobile device, a third-generation mobile phone. The interfaces are integrated with other CVE clients, interoperating with a heterogeneous groupware suite. The narrowcasting operations comprise an idiom for selective attention or presence.