Just a reminder, the Research Showcase will begin in one hour. On Mon, Sep 19, 2016 at 5:02 PM, Sarah R <srodl...@wikimedia.org> wrote:
> Hi Everyone, > > The next Research Showcase will be live-streamed this Wednesday, > September 21, 2016 at 11:30 AM (PST) 18:30 (UTC). > > YouTube stream: https://www.youtube.com/watch?v=fTDkVeqjw80 > > As usual, you can join the conversation on IRC at #wikimedia-research. > And, you can watch our past research showcases here > <https://www.mediawiki.org/wiki/Wikimedia_Research/Showcase#September_2016> > . > > This month's showcase includes. > > > Finding News Citations for WikipediaBy *Besnik Fetahu > <http://www.l3s.de/~fetahu/> (Leibniz University of Hannover)*An > important editing policy in Wikipedia is to provide citations for added > statements in Wikipedia pages, where statements can be arbitrary pieces of > text, ranging from a sentence to a paragraph. In many cases citations are > either outdated or missing altogether. In this work we address the problem > of finding and updating news citations for statements in entity pages. We > propose a two- stage supervised approach for this problem. In the first > step, we construct a classifier to find out whether statements need a news > citation or other kinds of citations (web, book, journal, etc.). In the > second step, we develop a news citation algorithm for Wikipedia statements, > which recommends appropriate citations from a given news collection. Apart > from IR techniques that use the statement to query the news collection, we > also formalize three properties of an appropriate citation, namely: (i) the > citation should entail the Wikipedia statement, (ii) the statement should > be central to the citation, and (iii) the citation should be from an > authoritative source. We perform an extensive evaluation of both steps, > using 20 million articles from a real-world news collection. Our results > are quite promising, and show that we can perform this task with high > precision and at scale. > > > Designing and Building Online Discussion SystemsBy *Amy X. Zhang > <http://people.csail.mit.edu/axz/> (MIT)*Today, conversations are > everywhere on the Internet and come in many different forms. However, there > are still many problems with discussion interfaces today. In my talk, I > will first give an overview of some of the problems with discussion > systems, including difficulty dealing with large scales, which exacerbates > additional problems with navigating deep threads containing lots of > back-and-forth and getting an overall summary of a discussion. Other > problems include dealing with moderation and harassment in discussion > systems and gaining control over filtering, customization, and means of > access. Then I will focus on a few projects I am working on in this space > now. The first is Wikum, a system I developed to allow users to > collaboratively generate a wiki-like summary from threaded discussion. The > second, which I have just begun, is exploring the design space of > presentation and navigation of threaded discussion. I will next discuss > Murmur, a mailing list hybrid system we have built to implement and test > ideas around filtering, customization, and flexibility of access, as well > as combating harassment. Finally, I'll wrap up with what I am working on at > Google Research this summer: developing a taxonomy to describe online forum > discussion and using this information to extract meaningful content useful > for search, summarization of discussions, and characterization of > communities. > > Hope to see you there! > > Sarah R. Rodlund > Senior Project Coordinator-Engineering, Wikimedia Foundation > srodl...@wikimedia.org > -- Sarah R. Rodlund Senior Project Coordinator-Engineering, Wikimedia Foundation srodl...@wikimedia.org
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