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
DOIs
Publication statusPublished - 2011 Dec 1
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, Japan
Duration: 2011 Aug 282011 Aug 31

Publication series

NameProceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011
Volume2

Conference

Conference1st 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
CountryJapan
CityToyama
Period11/8/2811/8/31

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications

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  • 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 (pp. 109-112). [6029885] (Proceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011; Vol. 2). https://doi.org/10.1109/RTCSA.2011.10