Search (3 results, page 1 of 1)

  • × author_ss:"Nov, O."
  • × author_ss:"Porfiri, M."
  • × year_i:[2010 TO 2020}
  1. Nov, O.; Laut, J.; Porfiri, M.: Using targeted design interventions to encourage extra-role crowdsourcing behavior (2016) 0.00
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    Abstract
    Crowdsourcing has seen a substantial increase in interest from researchers and practitioners in recent years. Being a new form of work facilitated by information technology, the rise of crowdsourcing calls for the development of new theoretical insights. Our focus in this article is on extra-role behavior-employees' voluntary activities, which are not part of their prescribed duties. Specifically, we explored how user interface design can help increase extra-role behavior among crowdsourcing workers. In a randomized experiment, we examined the joint effects of the presentation of a performance display to crowdsourcing workers and the personal attributes of these workers on the workers' likelihood to engage in extra-role behavior. The experimental setting included an image analysis task performed on an environmental monitoring website. We compared workers' behavior across the different experimental conditions and found that the interaction between the presence of a performance display and the workers' personality trait of curiosity has a significant impact on the likelihood of engaging in extra-role behavior. In particular, the presence of a performance display was associated with increased likelihood of extra-role behavior among low-curiosity workers, and no change in extra-role behavior was observed among high-curiosity users. Implications for design are discussed.
    Date
    22. 1.2016 14:43:06
    Source
    Journal of the Association for Information Science and Technology. 67(2016) no.2, S.483-489
  2. Nakayama, S.; Tolbert, T.J.; Nov, O.; Porfiri, M.: Social information as a means to enhance engagement in citizen science-based telerehabilitation (2019) 0.00
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    Abstract
    Advancements in computer-mediated exercise put forward the feasibility of telerehabilitation, but it remains a challenge to retain patients' engagement in exercises. Building on our previous study demonstrating enhanced engagement in citizen science through social information about others' contributions, we propose a novel framework for effective telerehabilitation that integrates citizen science and social information into physical exercise. We hypothesized that social information about others' contributions would augment engagement in physical activity by encouraging people to invest more effort toward discovery of novel information in a citizen science context. We recruited healthy participants to monitor the environment of a polluted canal by tagging images using a haptic device toward gathering environmental information. Along with the images, we displayed the locations of the tags created by the previous participants. We found that participants increased both the amount and duration of physical activity when presented with a larger number of the previous tags. Further, they increased the diversity of tagged objects by avoiding the locations tagged by the previous participants, thereby generating richer information about the environment. Our results suggest that social information is a viable means to augment engagement in rehabilitation exercise by incentivizing the contribution to scientific activities.
    Source
    Journal of the Association for Information Science and Technology. 70(2019) no.6, S.587-595
  3. Laut, J.; Cappa, F.; Nov, O.; Porfiri, M.: Increasing citizen science contribution using a virtual peer (2017) 0.00
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    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.3, S.583-593