7. Concluding Remarks

The tremendous success of crowdsourcing systems has attracted a lot of researchers. Prior work have investigated wide array of issues related to crowdsourcing such as visualization tools (Vegas et al. Studying cooperation and conflict between authors with history flow visualizations. 2004), (Vegas et al. Talk before you type: coordination in wikipedia. 2007), motivations for participation (Hoisl et al. Social rewarding in wiki systems motivating the community. 2007), the effects of coordination and collaboration (Wilkinson and Huberman. Cooperation and quality in wikipedia. 2007), vandalism analysis and detection (Kittur. He says, she says: conflict and coordination in wikipedia. 2007), (Priedhorsky et al. Creating, destroying, and restoring value in wikipedia. 2007), (Potthast et al. Automatic vandalism detection in wikipedia. 2008), (Smets et al. Automatic vandalism detection in wikipedia: towards a machine learning approach. 2008), reputation systems (Adler and de Alfaro. A content-driven reputation system for the wikipedia. 2007), (Lim et al. Measuring qualities of articles contributed by online communities. 2006), (Zeng et al. Computing trust from revision history. 2006), quality assurance and automatic quality measurement (Adler and de Alfaro. A content-driven reputation system for the wikipedia. 2007), (Blumenstock. Size matters: word count as a measure of quality on wikipedia. 2008), (Cross. Puppy smoothies: Improving the reliability of open, collaborative wikis. 2006), (Dondio and Barrett. Computational trust in web content quality: a comparative evalutation on the wikipedia project. 2007), (Lim et al. Measuring qualities of articles contributed by online communities. 2006), (Stvilia et al. Assessing information quality of a community-based encyclopedia. 2005), (Zeng et al. Computing trust from revision history. 2006), (Cross. Puppy smoothies: Improving the reliability of open, collaborative wikis. 2006), (Dondio and Barrett. Computational trust in web content quality: a comparative evalutation on the wikipedia project. 2007).