Hi all,

In addition to Weiwen, Zhicong Lu will also deliver a practice talk on his paper that he is going to present at CSCW. The paper is one of his works on live streaming. Please join us and give him feedback on his presentation. Below are the details of his presentation.

Title: StreamWiki: Enabling Viewers of Knowledge Sharing Live Streams to Collaboratively Generate Archival Documentation for Effective In-Stream and Post Hoc Learning

Abstract:

Knowledge-sharing live streams are distinct from traditional educational videos, at least because of the large concurrently-viewing audience and the real-time discussions between viewers and the streamer. Though this creates unique opportunities for interactive learning, it also brings a challenge for creating a useful archive for post hoc learning. This paper presents the results of interviews with knowledge sharing streamers, their moderators, and viewers to understand current experiences and needs for sharing and learning knowledge through live streaming. Based on those findings, we built StreamWiki, a tool which leverages the viewers during live streams to produce useful archives of the interactive learning experience. On StreamWiki, moderators initiate tasks that viewers complete by conducting microtasks, such as writing a summary, commenting, and voting for informative comments. As a result, a summary document is built in real time. Through the tests of our prototype with streamers and viewers, we found that StreamWiki could help in understanding the content and the context of the stream, during the stream and for post hoc learning.

And the paper can be found here:

http://www.dgp.toronto.edu/~luzhc/media/streamWiki.pdf

Thanks,

Rifat

On Mon, Oct 29, 2018 at 9:54 AM Mohammad Rashidujjaman Rifat <rifat@cs.toronto.edu> wrote:

Hi All,

We have our HCI group meeting tomorrow at 12:30 PM at DGP Seminar room. Weiwen Leung is going to give a practice talk on his paper that he going to present in CSCW next month. The paper is about the impact of NFL games to the Wikipedia editors that identify themselves as fans of NFL teams (abstract is below). Please drop by and help Weiwen to prepare for the talk, while at the same time give feedback on this awesome work. Lunch will be provided during the meeting.

Thanks,
Rifat

--
Mohammad Rashidujjaman Rifat
Ph.D. Student, Department of Computer Science, University of Toronto.
http://www.dgp.toronto.edu/~rifat/

Exploiting evidence that sporting results affect fans’ mood, we analyze whether National Football League game outcomes can affect the contributions of Wikipedia editors who identify as fans of a specific team. We find that the day after a team loses, their fans decrease their contributions towards football-related pages (relative to after a win). Relative decreases are bigger if losses are unexpected, or if losing margins are big. In contrast, unexpected wins do not cause more contributions relative to wins that were not unexpected. Neither do big wins result in more contributions relative to small wins. Additionally, contributions to non-football-related pages are not affected by NFL game results. Our findings add to the literatures on (i) the determinants of individual contributions to peer production communities, (ii) how community dynamics affect user contributions, (iii) the importance of emotions, (iv) the effect of offline events on online behavior, and (v) the applicability of behavioral economics concepts to the HCI literature.