Denis Savenkov
Research Scientist, Facebook
Research @ Facebook
Email: denissavenkov at gmail dot com
Twitter: http://twitter.com/DenXX
Interests: natural language understanding, dialog systems, NLP, Information Retrieval, Machine Learning,
My CV
I am a research scientist at Facebook, working on natural language understanding in Messenger.
I've received my Ph.D. degree from Emory University, where I worked at the Intelligent Information Access Lab with Prof. Eugene Agichtein.
Currently, my research interests are in the areas of natural language understanding, semantic parsing, dialog systems and question answering.
News
- I've succesfully defended my Ph.D. dissertation titled "Question Answering with User Generated Content" and joining Facebook Seattle as a research scientist!
- Slides from my presentation on Web Search and Data Mining (WSDM) 2016 conference doctoral consortium.
- Here are some slides on "Relation extraction" for Emory NLP research group seminar: relation extraction overview slides
- I spent a wonderful summer 2014 at Google's knowledge vault team, thanks everybody!
- Our team won the Yandex Switch Detection Challenge 2012 (report is available here, feature generation code is here)
Publications
| 2017 | |
|---|---|
| EviNets: Neural Networks for Combining Evidence Signals for Factoid Question Answering, Denis Savenkov and Eugene Agichtein ACL, 2017 |
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| Exploring Conversational Search With Humans, Search Engines, and Wizards, Alexandra Vtyurina, Denis Savenkov, Eugene Agichtein and Charles L.A. Clarke CHI 2017 |
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| What Do You Mean Exactly? Analyzing Clarification Questions in CQA, Pavel Braslavski, Denis Savenkov, Eugene Agichtein and Alina Dubatovka CHIIR 2017 |
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| 2016 | |
| Emory University at TREC LiveQA 2016: Combining Crowdsourcing and Learning-To-Rank Approaches for Real-Time Complex Question Answering, Denis Savenkov and Eugene Agichtein TREC 2016 |
pdf slides |
| CRQA: Crowd-powered Real-time Automated Question Answering System, Denis Savenkov and Eugene Agichtein HCOMP 2016 |
pdf slides |
| When a Knowledge Base is not Enough: Question Answering over Knowledge Bases with External Text Data, Denis Savenkov and Eugene Agichtein SIGIR 2016 |
pdf slides |
| Crowdsourcing for (almost) Real-time Question Answering, Denis Savenkov, Scott Weitzner and Eugene Agichtein Human-Computer Question Answering workshop @ NAACL 2016 |
pdf slides |
| 2015 | |
| Ranking Answers and Web Passages for Non-factoid Question Answering: Emory IR Lab @ TREC 2015 LiveQA, Denis Savenkov TREC 2015 |
pdf slides poster |
| Relation Extraction from Community Generated Question-Answer Pairs, Denis Savenkov, Wei-Lwun Lu, Jeff Dalton and Eugene Agichtein NAACL 2015 Student Research Workshop |
pdf poster |
| 2014 | |
| To Hint or Not: Exploring the Effectiveness of Search Hints for Complex Informational Tasks, Denis Savenkov, Eugene Agichtein SIGIR 2014 |
pdf poster |
| 2013 | |
| Search Engine Switching Detection Based on User Personal Preferences and Behavior Patterns
, D.Savenkov, D.Lagun and Q. Liu SIGIR 2013 (acceptance rate: 19.9%) |
pdf slides |
| Touch Screens for Touchy Issues: Analysis of Accessing Sensitive Information from Mobile Devices, Dan Pelleg, Denis Savenkov and Eugene Agichtein ICWSM (International Conference on Weblogs and Social Media) 2013 |
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| Detecting Search Engine Switching Based on User Preferences, Search Tasks, and Behavior Patterns, Denis Savenkov, Dmitry Lagun and Qiaoling Liu WSDM workshop on Web Search Click Data, 2013 |
pdf pptx |
| 2012 | |
| Improving Relevance Prediction by Addressing Biases and Sparsity in Web Search Click Data, Qi Guo, Dmitry Lagun, Denis Savenkov, and Qiaoling Liu WSDM workshop on Web Search Click Data, 2012 |
pdf pptx |
| 2011 | |
| Search Snippet Evaluation at Yandex: Lessons Learned and Future Directions, Denis Savenkov, Pavel Braslavski, and Mikhail Lebedev Multilingual and Multimodal Information Access Evaluation, 2011, Springer, pp.14-25 |
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Teaching
Fall 2016
- TA for CS534 - Machine Learning
Spring 2014
- CS375 - Competitive programming
Fall 2013
- CS170 - Introduction to Computer Science
Spring 2013
Useful links
- My slides on tips and tricks on Surviving PhD
- "A Survival Guide to a PhD" by Andrej Karpathy
- "You and your research" by Richard Hamming
- Simon Peyton Jones notes on research
- Useful readings from Dr.Gabriel Robins
Interests
- Competitive programming: DenXX on TopCoder, DenXX on Codeforces
- Running and triathlon: Denis Savenkov at athlinks