Hadas Kotek

office location: Cambridge, MA
email: hkotek at alum.mit.edu

I am a Linguist working at Apple. I am a member of the Natural Language data science team for Siri Understanding. I have expertise in managing all aspects of data collection and analysis efforts for various NLP tasks at scale, including onboarding and training annotators; designing annotation tasks and tools; data sampling; analyzing data for accuracy, consistency, and efficiency; error analysis; implementing improvements to ontology, task design, and annotator training; and reporting to stakeholders. Most recently, my focus has been on data generation, robustness, and safety of Large Language Models. In Fall 2023, I am teaching a seminar on LLMs at MIT.

I continue to engage in research as a Research Affiliate at MIT linguistics, with a focus on LLM safety and efficient data collection. My academic research focused on different aspects of the syntax-semantics interface, using both traditional and experimental methods. I mainly worked on A-bar phenomena, including wh-questions, focus constructions, relative clauses and free relatives, ellipsis, wh-indefinites, (focus) intervention effects, and comparatives and superlatives. I additionally have an ongoing interest in studying and contributing to equity in the field.

I received my PhD in Linguistics from MIT in 2014, with a dissertation on the syntax, semantics, and processing of questions. Prior to joining Apple, I was a Lecturer in Semantics at Yale and a Visiting Assistant Professor in Syntax at NYU, and I have held a Mellon Postdoctoral Fellowship at McGill University.

Please visit the about page for more details concerning my research interests and my academic history. See my resume, my academic CV, my MIT linguistics user page, or my LinkedIn page for additional details.

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AI ethics

Informational posts on the non-academic job market


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Newest work

Peer reviewed conference papers:

Journal papers:


Recorded talks

Additional details about these and other papers and presentations can be found on my publications page. To read more about my various projects, visit the research page.

For the most up to date list of my presentations and publications, please consult my CV.