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Alexandra Olteanu

Researcher at Microsoft

Publications -  39
Citations -  2463

Alexandra Olteanu is an academic researcher from Microsoft. The author has contributed to research in topics: Social media & Web page. The author has an hindex of 18, co-authored 39 publications receiving 1704 citations. Previous affiliations of Alexandra Olteanu include École Normale Supérieure & IBM.

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Proceedings ArticleDOI

What to Expect When the Unexpected Happens: Social Media Communications Across Crises

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.
Journal ArticleDOI

Social Data: Biases, Methodological Pitfalls, and Ethical Boundaries.

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.
Proceedings Article

CrisisLex: A Lexicon for Collecting and Filtering Microblogged Communications in Crises

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.
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FactSheets: Increasing trust in AI services through supplier's declarations of conformity

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.
Proceedings ArticleDOI

A Critical Review of Online Social Data: Biases, Methodological Pitfalls, and Ethical Boundaries

TL;DR: In this article, the authors highlight that biases and inaccuracies occurring at the source of the data, but also introduced during data processing pipeline; there are methodological limitations and pitfalls, as well as ethical boundaries and unexpected outcomes that are often overlooked.