Publication statistics

Pub. period:2005-2012
Pub. count:13
Number of co-authors:12



Co-authors

Number of publications with 3 favourite co-authors:

Chen Ye:3
Ofer Arazy:3
Raktim Mitra:2

 

 

Productive colleagues

Oded Nov's 3 most productive colleagues in number of publications:

Mor Naaman:32
Aditya Johri:11
Judd Antin:11
 
 
 

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Oded Nov

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Publications by Oded Nov (bibliography)

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2012
 
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Antin, Judd, Cheshire, Coye and Nov, Oded (2012): Technology-mediated contributions: editing behaviors among new Wikipedians. In: Proceedings of ACM CSCW12 Conference on Computer-Supported Cooperative Work 2012. pp. 373-382.

The power-law distribution of participation characterizes a wide variety of technology-mediated social participation (TMSP) systems, and Wikipedia is no exception. A minority of active contributors does most of the work. While the existence of a core of highly active contributors is well documented, how those individuals came to be so active is less well understood. In this study we extend prior research on TMSP and Wikipedia by examining in detail the characteristics of the revisions that new contributors make. In particular we focus on new users who maintain a minimum level of sustained activity during their first six months. We use content analysis of individual revisions as well as other quantitative techniques to examine three research questions regarding the effect of early diversification of activity, nature vs. nurture, and associations with later administrative and organizational activity. We present analyses that address each of these questions, and conclude with implications for our understanding of the progression of participation on Wikipedia and other TMSP systems.

© All rights reserved Antin et al. and/or ACM Press

2011
 
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Johri, Aditya, Nov, Oded and Mitra, Raktim (2011): Environmental jolts: impact of exogenous factors on online community participation. In: Proceedings of ACM CSCW11 Conference on Computer-Supported Cooperative Work 2011. pp. 649-652.

Few studies of online communities take exogenous factors into account while explaining community participation. We present preliminary results from a study investigating the impact of steward companies' actions on online community participation. We identified two events: (1) open sourcing of Java by Sun and (2) acquisition of Sun (and consequently of Java) by Oracle, and examined participation in their developer online communities. We found significant change in participation levels around each event with both significant increases and decreases. We conjecture that participation increased if the action was perceived as supportive by developers (e.g. Sun's open sourcing of Java) whereas it decreased if the action was perceived as detrimental by developers (e.g. Oracle's acquisition of Sun).

© All rights reserved Johri et al. and/or their publisher

 
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Antin, Judd, Yee, Raymond, Cheshire, Coye and Nov, Oded (2011): Gender differences in Wikipedia editing. In: Proceedings of the 2011 International Symposium on Wikis and Open Collaboration 2011. pp. 11-14.

As Wikipedia has become an indispensable source of online information, concerns about who writes, edits, and maintains it have come to the forefront. In particular, the 2010 UNU-MERIT survey found evidence of a significant gender skew: fewer than 13% of Wikipedia contributors are women. However, the number of contributors is just one way to examine gender differences in contribution. In this paper we take a more fine-grained perspective by examining how much and what types of Wiki-work men and women tend to do. First, we find that the so-called "Gender Gap" in number of editors may not be as wide as prior studies have suggested. Second, although more than 80% of editors in our sample were men, among the bottom 75% of editors by activity-level, we find that men and women made similar numbers of revisions. However, among the most active Wikipedians men tended to make many more revisions than women. Finally, we find that the most active women in our sample tended to make larger revisions than the most active men. We conclude by discussing directions for future research.

© All rights reserved Antin et al. and/or ACM Press

 
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Nov, Oded, Arazy, Ofer and Anderson, David (2011): Dusting for science: motivation and participation of digital citizen science volunteers. In: Proceedings of the 2011 iConference 2011. pp. 68-74.

Digital citizen science offers a low-cost way to strengthen the scientific infrastructure, and engage members of the public in science. It is based on two pillars: (1) a technological pillar, which involves developing computer systems to manage large amounts of distributed resources, and (2) a motivational pillar, which involves attracting and retaining volunteers who would contribute their skills, time, and effort to a scientific cause. While the technological dimension has been widely studied, the motivational dimension received little attention to date. To address this gap, we surveyed volunteers at Stardust@home a digital citizen science project, in which volunteers classify online images from NASA's Stardust spacecraft. We found that collective and intrinsic motivations are the most salient motivational factors, whereas reward motives seem to be less relevant. We also found that intrinsic and norm-oriented motives are most strongly associated with participation intentions, which were, in turn, found to be associated with participation effort. Implications for research and practice are discussed.

© All rights reserved Nov et al. and/or ACM Press

 
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Johri, Aditya, Nov, Oded and Mitra, Raktim (2011): "Cool" or "monster"?: company takeovers and their effect on open source community participation. In: Proceedings of the 2011 iConference 2011. pp. 327-331.

In this study, we investigate the effect of takeover announcements made by open-source software (OSS) steward firms, on participation in an OSS newcomers' online community. We examine a MySQL newcomer forum before and after two takeover announcements -- the January 2008 announcement of MySQL's takeover by Sun Microsystems, and the April 2009 announcement of Sun's takeover by Oracle. We find that the impact on participation depends on how the acquiring company is perceived. The announcement of an acquisition by a company perceived as hostile had a negative effect on participation, whereas announcement of acquisition by a more friendly company was found to have no effect on participation. These changes in participation occurred without any accompanying change in the product itself, or its licensing. This work provides the evidence of the effect of external events on online participation.

© All rights reserved Johri et al. and/or ACM Press

2010
 
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Arazy, Ofer and Nov, Oded (2010): Determinants of wikipedia quality: the roles of global and local contribution inequality. In: Proceedings of ACM CSCW10 Conference on Computer-Supported Cooperative Work 2010. pp. 233-236.

The success of Wikipedia and the relative high quality of its articles seem to contradict conventional wisdom. Recent studies have begun shedding light on the processes contributing to Wikipedia's success, highlighting the role of coordination and contribution inequality. In this study, we expand on these works in two ways. First, we make a distinction between global (Wikipedia-wide) and local (article-specific) inequality and investigate both constructs. Second, we explore both direct and indirect effects of these inequalities, exposing the intricate relationships between global inequality, local inequality, coordination, and article quality. We tested our hypotheses on a sample of a Wikipedia articles using structural equation modeling and found that global inequality exerts significant positive impact on article quality, while the effect of local inequality is indirect and is mediated by coordination.

© All rights reserved Arazy and Nov and/or their publisher

 
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Nov, Oded, Anderson, David and Arazy, Ofer (2010): Volunteer computing: a model of the factors determining contribution to community-based scientific research. In: Proceedings of the 2010 International Conference on the World Wide Web 2010. pp. 741-750.

Volunteer computing is a powerful way to harness distributed resources to perform large-scale tasks, similarly to other types of community-based initiatives. Volunteer computing is based on two pillars: the first is computational -- allocating and managing large computing tasks; the second is participative -- making large numbers of individuals volunteer their computer resources to a project. While the computational aspects of volunteer computing received much research attention, the participative aspect remains largely unexplored. In this study we aim to address this gap: by drawing on social psychology and online communities research, we develop and test a three-dimensional model of the factors determining volunteer computing users' contribution. We investigate one of the largest volunteer computing projects -- SETI@home -- by linking survey data about contributors' motivations to their activity logs. Our findings highlight the differences between volunteer computing and other forms of community-based projects, and reveal the intricate relationship between individual motivations, social affiliation, tenure in the project, and resource contribution. Implications for research and practice are discussed.

© All rights reserved Nov et al. and/or their publisher

2009
 
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Nov, Oded and Wattal, Sunil (2009): Social computing privacy concerns: antecedents and effects. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 333-336.

Social computing systems are increasingly a part of people's social environment. Inherent to such communities is the collection and sharing of personal information, which in turn may raise concerns about privacy. In this study, we extend prior research on internet privacy to address questions about antecedents of privacy concerns in social computing communities, as well as the impact of privacy concerns in such communities. The results indicate that users' trust in other community members, and the community's information sharing norms have a negative impact on community-specific privacy concerns. We also find that community-specific privacy concerns not only lead users to adopt more restrictive information sharing settings, but also reduce the amount of information they share with the community. In addition, we find that information sharing is impacted by network centrality and the tenure of the user in the community. Implications of the study for research and practice are discussed.

© All rights reserved Nov and Wattal and/or ACM Press

2008
 
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Nov, Oded, Naaman, Mor and Ye, Chen (2008): What drives content tagging: the case of photos on Flickr. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 1097-1100.

We examine tagging behavior on Flickr, a public photo-sharing website. We build on previous qualitative research that exposed a taxonomy of tagging motivations, as well as on social presence research. The motivation taxonomy suggests that motivations for tagging are tied to the intended target audience of the tags -- the users themselves, family and friends, or the general public. Using multiple data sources, including a survey and independent system data, we examine which motivations are associated with tagging level, and estimate the magnitude of their contribution. We find that the levels of the Self and Public motivations, together with social presence indicators, are positively correlated with tagging level; Family&Friends motivations are not significantly correlated with tagging. The findings and the use of survey method carry implications for designers of tagging and other social systems on the web.

© All rights reserved Nov et al. and/or ACM Press

 
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Nov, Oded and Ye, Chen (2008): Users' personality and perceived ease of use of digital libraries: The case for resistance to change. In JASIST - Journal of the American Society for Information Science and Technology, 59 (5) pp. 845-851.

 
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Nov, Oded and Ye, Chen (2008): Personality and Technology Acceptance: Personal Innovativeness in IT, Openness and Resistance to Change. In: HICSS 2008 - 41st Hawaii International International Conference on Systems Science 7-10 January, 2008, Waikoloa, Big Island, HI, USA. p. 448.

 
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Nov, Oded and Rao, Bharat (2008): Technology-facilitated 'Give According to Your Abilities, Receive According to Your Needs'. In Communications of the ACM, 51 (5) pp. 83-87.

2005
 
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Nov, Oded and Jones, Matthew (2005): Creativity, Knowledge and IS: A Critical View. In: HICSS 2005 - 38th Hawaii International Conference on System Sciences 3-6 January, 2005, Big Island, HI, USA. .

 
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