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Personal profile

Personal information

I am Anca Dumitrache, a PhD student in the User-Centric Data Science group at Vrije Universiteit Amsterdam.

For the past 4 years I’ve been involved in the CrowdTruth project, where we look into how to capture and interpret inter-annotator disagreement in crowdsourcing. I am investigating how to use this disagreement to get better training data for natural language processing models. My supervisors are Lora Aroyo and Chris Welty.

Other interests I have include machine learning, Semantic Web, open data and data science in general. My programming languages of choice are R and Python (particularly the scientific Python stack).

In the past, I’ve done internships in the Watson group at IBM Research, and in the NLP department at Google Research, both in New York. I’ve also been a recipient of the IBM PhD Fellowship from 2014 to 2016.

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Education/Academic qualification

Artificial Intelligence, Master, Vrije Universiteit Amsterdam

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Research Output 2013 2018

  • 7 Conference contribution
  • 2 Article
  • 1 Chapter

Capturing and Interpreting Ambiguity in Crowdsourcing Frame Disambiguation

Dumitrache, A., Aroyo, L. M. & Welty, C., 2018, (Accepted/In press) The sixth AAAI Conference on Human Computation and Crowdsourcing.

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Crowdsourcing Ground Truth for Medical Relation Extraction

Dumitrache, A., Aroyo, L. M. & Welty, C., 2018, (Accepted/In press) In : ACM Transactions on Interactive Intelligent Systems.

Research output: Contribution to JournalArticleAcademicpeer-review

False Positive and Cross-relation Signals in Distant Supervision Data

Dumitrache, A., Aroyo, L. M. & Welty, C., 2017, 6th Workshop on Automated Knowledge Base Construction (AKBC).

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

CrowdTruth: Machine-Human Computation Framework for Harnessing Disagreement in Gathering Annotated Data

Dumitrache, A., Inel, O., Timmermans, B. F. L., Aroyo, L. M. & Sips, H. J., 2016, Proceedings of the 14th Dutch-Belgian Information Retrieval Workshop.

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Crowdsourcing Disagreement for Collecting Semantic Annotation

Dumitrache, A., 2015, 12th Extended Semantic Web Conference, PhD Sypomsium.

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Open Access
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Prizes

IBM PhD Fellowship

A. Dumitrache (Recipient), 2016

Prize: Prize / AwardAcademic