Alexandra Olteanu
Microsoft
39 Papers
277 Citations
Alexandra Olteanu is an academic researcher from Microsoft. The author has contributed to research in topics: Social media & Computer science. The author has an hindex of 18, co-authored 39 publications. Previous affiliations of Alexandra Olteanu include École Normale Supérieure & IBM.
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Papers
Social Data: Biases, Methodological Pitfalls, and Ethical Boundaries.
Alexandra Olteanu,Carlos Castillo,Fernando Diaz,Emre Kiciman +3 more
- 11 Jul 2019
TL;DR: A framework for identifying a broad range of menaces in the research and practices around social data is presented, including biases and inaccuracies at the source of the data, but also introduced during processing.
What to Expect When the Unexpected Happens: Social Media Communications Across Crises
Alexandra Olteanu,Sarah Vieweg,Carlos Castillo +2 more
- 28 Feb 2015
TL;DR: This paper investigates several crises-including natural hazards and human-induced disasters-in a systematic manner and with a consistent methodology, leading to insights about the prevalence of different information types and sources across a variety of crisis situations.
FactSheets: Increasing trust in AI services through supplier's declarations of conformity
Matthew Arnold,Rachel K. E. Bellamy,Michael Hind,Stephanie Houde,Sameep Mehta,Aleksandra Mojsilovic,Ravi Nair,K. Natesan Ramamurthy,Alexandra Olteanu,David Piorkowski,Darrell C. Reimer,John T. Richards,Jason Tsay,Kush R. Varshney +13 more
TL;DR: This paper envisiones an SDoC for AI services to contain purpose, performance, safety, security, and provenance information to be completed and voluntarily released by AI service providers for examination by consumers.
451
•Proceedings Article
CrisisLex: A Lexicon for Collecting and Filtering Microblogged Communications in Crises
Alexandra Olteanu,Carlos Castillo,Fernando Diaz,Sarah Vieweg +3 more
- 16 May 2014
TL;DR: The EPFL-CONF-203561 study highlights the need to understand more fully the role of social media in the decision-making process and the role that media outlets play in this process.
•Posted Content
The Effect of Extremist Violence on Hateful Speech Online
TL;DR: This article found that extremist violence tends to lead to an increase in online hate speech, particularly on messages directly advocating violence, and the effect of violent events on the volume and type of hateful speech on two social media platforms, Twitter and Reddit.
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