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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.

Ancillary activities

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Education/Academic qualification

Artificial Intelligence, Master, Vrije Universiteit Amsterdam

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Research Output 2013 2019

  • 8 Conference contribution
  • 3 Article
  • 1 Chapter

Crowdsourcing inclusivity: Dealing with diversity of opinions, perspectives and ambiguity in annotated data: The Crowdtruth tutorial

Aroyo, L., Szlávik, Z., Dumitrache, A., Timmermans, B., Inel, O. & Welty, C., 13 May 2019, The Web Conference 2019 - Companion of the World Wide Web Conference, WWW 2019. Association for Computing Machinery, Inc, p. 1294-1295 2 p.

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

Social sciences
Medicine
Learning systems
Acoustic waves

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. & Welty, C., Jul 2018, In : ACM Transactions on Interactive Intelligent Systems. 8, 2, p. 1-20 20 p., 11.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
Learning systems
Costs
Experiments

Reports of the workshops held at the sixth AAAI conference on human computation and crowdsourcing

Aroyo, L., Dumitrache, A., Simperl, E., Lease, M., Michelucci, P. & Nickerson, J. V., 21 Dec 2018, In : AI Magazine. 39, 4, p. 57-63 7 p.

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

Prizes

IBM PhD Fellowship

Anca Dumitrache (Recipient), 2016

PrizeAcademic