Mobile image search via local crowd

A user study

Yefeng Liu, Todorka Alexandrova, Tatsuo Nakajima, Vili Lehdonvirta

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    5 Citations (Scopus)

    Abstract

    In this paper we present a on-field study for evaluating a crowdsourcing mobile social search application. With the help of the local crowd via social medias, this application assists foreign visitors in Japan by answering their image-based questions at hand in a timely fashion. We ran a controlled field experiment for 6 weeks with 55 participants. We found that the mobile crowdsourcing model demonstrated a reliable performance on response speed and response quantity: half of the requests were answered within 10 minutes, 75% of requests were answered within 30 minutes, and on average every request had 4.2 answers. Especially in the afternoon, evening and night, nearly 88% requests were answered in average approximately 10 minutes, with more than 4 answers per request. In terms of participation motivation, we found the top active crowdworkers were more driven by intrinsic motivations rather than any of the extrinsic incentives (gamification incentives and social incentives) we designed.

    Original languageEnglish
    Title of host publicationProceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011
    Pages109-112
    Number of pages4
    Volume2
    DOIs
    Publication statusPublished - 2011
    Event1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Co-located with the 17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011 - Toyama
    Duration: 2011 Aug 282011 Aug 31

    Other

    Other1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Co-located with the 17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011
    CityToyama
    Period11/8/2811/8/31

    Fingerprint

    Experiments

    ASJC Scopus subject areas

    • Computer Science Applications
    • Computer Networks and Communications

    Cite this

    Liu, Y., Alexandrova, T., Nakajima, T., & Lehdonvirta, V. (2011). Mobile image search via local crowd: A user study. In Proceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011 (Vol. 2, pp. 109-112). [6029885] https://doi.org/10.1109/RTCSA.2011.10

    Mobile image search via local crowd : A user study. / Liu, Yefeng; Alexandrova, Todorka; Nakajima, Tatsuo; Lehdonvirta, Vili.

    Proceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011. Vol. 2 2011. p. 109-112 6029885.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Liu, Y, Alexandrova, T, Nakajima, T & Lehdonvirta, V 2011, Mobile image search via local crowd: A user study. in Proceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011. vol. 2, 6029885, pp. 109-112, 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Co-located with the 17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011, Toyama, 11/8/28. https://doi.org/10.1109/RTCSA.2011.10
    Liu Y, Alexandrova T, Nakajima T, Lehdonvirta V. Mobile image search via local crowd: A user study. In Proceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011. Vol. 2. 2011. p. 109-112. 6029885 https://doi.org/10.1109/RTCSA.2011.10
    Liu, Yefeng ; Alexandrova, Todorka ; Nakajima, Tatsuo ; Lehdonvirta, Vili. / Mobile image search via local crowd : A user study. Proceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011. Vol. 2 2011. pp. 109-112
    @inproceedings{def11d0158934d6eb9b153871a2acbfb,
    title = "Mobile image search via local crowd: A user study",
    abstract = "In this paper we present a on-field study for evaluating a crowdsourcing mobile social search application. With the help of the local crowd via social medias, this application assists foreign visitors in Japan by answering their image-based questions at hand in a timely fashion. We ran a controlled field experiment for 6 weeks with 55 participants. We found that the mobile crowdsourcing model demonstrated a reliable performance on response speed and response quantity: half of the requests were answered within 10 minutes, 75{\%} of requests were answered within 30 minutes, and on average every request had 4.2 answers. Especially in the afternoon, evening and night, nearly 88{\%} requests were answered in average approximately 10 minutes, with more than 4 answers per request. In terms of participation motivation, we found the top active crowdworkers were more driven by intrinsic motivations rather than any of the extrinsic incentives (gamification incentives and social incentives) we designed.",
    author = "Yefeng Liu and Todorka Alexandrova and Tatsuo Nakajima and Vili Lehdonvirta",
    year = "2011",
    doi = "10.1109/RTCSA.2011.10",
    language = "English",
    isbn = "9780769545028",
    volume = "2",
    pages = "109--112",
    booktitle = "Proceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011",

    }

    TY - GEN

    T1 - Mobile image search via local crowd

    T2 - A user study

    AU - Liu, Yefeng

    AU - Alexandrova, Todorka

    AU - Nakajima, Tatsuo

    AU - Lehdonvirta, Vili

    PY - 2011

    Y1 - 2011

    N2 - In this paper we present a on-field study for evaluating a crowdsourcing mobile social search application. With the help of the local crowd via social medias, this application assists foreign visitors in Japan by answering their image-based questions at hand in a timely fashion. We ran a controlled field experiment for 6 weeks with 55 participants. We found that the mobile crowdsourcing model demonstrated a reliable performance on response speed and response quantity: half of the requests were answered within 10 minutes, 75% of requests were answered within 30 minutes, and on average every request had 4.2 answers. Especially in the afternoon, evening and night, nearly 88% requests were answered in average approximately 10 minutes, with more than 4 answers per request. In terms of participation motivation, we found the top active crowdworkers were more driven by intrinsic motivations rather than any of the extrinsic incentives (gamification incentives and social incentives) we designed.

    AB - In this paper we present a on-field study for evaluating a crowdsourcing mobile social search application. With the help of the local crowd via social medias, this application assists foreign visitors in Japan by answering their image-based questions at hand in a timely fashion. We ran a controlled field experiment for 6 weeks with 55 participants. We found that the mobile crowdsourcing model demonstrated a reliable performance on response speed and response quantity: half of the requests were answered within 10 minutes, 75% of requests were answered within 30 minutes, and on average every request had 4.2 answers. Especially in the afternoon, evening and night, nearly 88% requests were answered in average approximately 10 minutes, with more than 4 answers per request. In terms of participation motivation, we found the top active crowdworkers were more driven by intrinsic motivations rather than any of the extrinsic incentives (gamification incentives and social incentives) we designed.

    UR - http://www.scopus.com/inward/record.url?scp=84862936998&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84862936998&partnerID=8YFLogxK

    U2 - 10.1109/RTCSA.2011.10

    DO - 10.1109/RTCSA.2011.10

    M3 - Conference contribution

    SN - 9780769545028

    VL - 2

    SP - 109

    EP - 112

    BT - Proceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011

    ER -