Data Systems Seminars (2020-2021)

The Data Systems Seminar Series provides a forum for presentation and discussion of interesting and current data systems issues. It complements our internal data systems meetings by bringing in external colleagues. The talks that are scheduled for this year are listed below.

The talks are usually held on a Monday at 10:30 am in room DC 1302. Exceptions are flagged. Due to Covid-19, until further notice all talks will be virtual over zoom.

We will try to post the presentation notes, whenever that is possible. Please click on the presentation title to access these notes.


The Database Seminar Series is supported by


Danqi Chen
Jennie Rogers
Peter Boncz
Aaron Elmore
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14 September 2020; 10:30AM (Zoom link)

Title: Recent Advances in Open-domain Question Answeringvideo
Speaker: Danqi Chen, Princeton University
Abstract: Open-domain question answering, the task of automatically answering questions posed by humans in a natural language, usually based on a large collection of unstructured documents, has (re-)gained a lot of popularity in the last couple of years. In this talk, I will discuss many recent exciting developments which have greatly advanced the field, including several works of ours. In particular, I would like to discuss the importance of pre-training for question answering, learning dense representations for retrieval in place of sparse models, the role of structured knowledge, as well as the trade-off between open-book and closed-book models. I will conclude with current limitations and future directions.
Bio: Danqi Chen is an Assistant Professor of Computer Science at Princeton University and co-leads the Princeton NLP Group. Her research focuses on deep learning for natural language processing, especially in the intersection of text understanding and knowledge representation & reasoning and applications in question answering, information extraction, and conversational systems. Before joining Princeton, Danqi worked as a visiting scientist at Facebook AI Research in Seattle. She received her Ph.D. from Stanford University (2018) and B.E. from Tsinghua University (2012), both in Computer Science. In the past, she was a recipient of the 2019 Arthur Samuel Best Doctoral Thesis Award at Stanford University, a Facebook Fellowship, a Microsoft Research Women’s Fellowship, and paper awards at ACL’16 and EMNLP’17.

19 October 2020; 10:30AM

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Speaker: Jennie Rogers, Northwestern University
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16 November 2020; 10:30AM 

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Speaker: Peter Boncz, CWI
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14 December 2020; 10:30AM

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Speaker: Aaron Elmore, University of Chicago
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11 January 2021; 10:30AM

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19 April 2021; 10:30AM

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17 May 2021; 10:30AM

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14 June 2021; 10:30AM

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