Hi Everyone, Just a reminder, this will begin at 11:30 AM PST Today!
Kind regards, Sarah R. On Sun, Jun 18, 2017 at 3:47 PM, Sarah R <srodl...@wikimedia.org> wrote: > Hi Everyone, > > The next Research Showcase will be live-streamed this Wednesday, June 21, > 2017 at 11:30 AM (PST) 18:30 UTC. > > YouTube stream: https://www.youtube.com/watch?v=i2jpKRwPT-Q > > 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#June_2017>. > > This month's presentations: > > Title: Problematizing and Addressing the Article-as-Concept Assumption in > Wikipedia > > By *Allen Yilun Lin* > > Abstract: Wikipedia-based studies and systems frequently assume that each > article describes a separate concept. However, in this paper, we show that > this article-as-concept assumption is problematic due to editors’ tendency > to split articles into parent articles and sub-articles when articles get > too long for readers (e.g. “United States” and “American literature” in the > English Wikipedia). In this paper, we present evidence that this issue can > have significant impacts on Wikipedia-based studies and systems and > introduce the subarticle matching problem. The goal of the sub-article > matching problem is to automatically connect sub-articles to parent > articles to help Wikipedia-based studies and systems retrieve complete > information about a concept. We then describe the first system to address > the sub-article matching problem. We show that, using a diverse feature set > and standard machine learning techniques, our system can achieve good > performance on most of our ground truth datasets, significantly > outperforming baseline approaches. > > > Title: Understanding Wikidata Queries > > > By *Markus Kroetzsch* > > Abstract: Wikimedia provides a public service that lets anyone answer > complex questions over the sum of all knowledge stored in Wikidata. These > questions are expressed in the query language SPARQL and range from the > most simple fact retrievals ("What is the birthday of Douglas Adams?") to > complex analytical queries ("Average lifespan of people by occupation"). > The talk presents ongoing efforts to analyse the server logs of the > millions of queries that are answered each month. It is an important but > difficult challenge to draw meaningful conclusions from this dataset. One > might hope to learn relevant information about the usage of the service and > Wikidata in general, but at the same time one has to be careful not to be > misled by the data. Indeed, the dataset turned out to be highly > heterogeneous and unpredictable, with strongly varying usage patterns that > make it difficult to draw conclusions about "normal" usage. The talk will > give a status report, present preliminary results, and discuss possible > next steps. > > -- > Sarah R. Rodlund > Senior Project Coordinator-Product & Technology, Wikimedia Foundation > srodl...@wikimedia.org > > > -- Sarah R. Rodlund Senior Project Coordinator-Product & Technology, Wikimedia Foundation srodl...@wikimedia.org “*In a real sense all life is inter-related. All men are caught in an inescapable network of mutuality, tied in a single garment of destiny. Whatever affects one directly, affects all indirectly. I can never be what I ought to be until you are what you ought to be, and you can never be what you ought to be until I am what I ought to be...This is the inter-related structure of reality.”**― Martin Luther King Jr.'s Letter from Birmingham Jail and the Struggle That Changed a Nation <http://www.goodreads.com/work/quotes/197294>* _______________________________________________ Wiki-research-l mailing list Wiki-research-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wiki-research-l
