I am an assistant research professor of computer science at Johns Hopkins University. I primarily work
in the Human Language Technology Center of Excellence (COE). I am affiliated with the Center for Speech and Language Processing (CLSP) and am part of the Machine Learning Group.
I lead the Social Media and Health Research Group.
1/7/2015 — Two talks at Columbia University.
1/6/2015 — Talk at Microsoft Research NYC.
1/1/2015 — I wrote an article entitled "Mining 21st Century Chatter?" for the Johns Hopkins Engineering Magazine.
12/29/2014 — Our paper "What Are Health-Related Users Tweeting?" was in the top 10 most tweeted articles in JMIR for 2014.
12/27/2014 — Our work on Twitter and mental health is covered by the New York Times.
12/19/2014 — Our work on the flu featured on the NBC Nightly News [video].
12/17/2014 — Talks at the Centers for Disease Control and Prevention on tobacco control and public health surveillance.
12/16/2014 — Talk at the American Cancer Society.
12/12/2014 — The Partially Derivative podcast covered our mental health work.
12/12/2014 — Our work on Twitter and mental health is covered by Fox News, The Huffington Post, The Washington Times, redOrbit, and Voice of America,
12/11/2014 — Our work on the flu in Fast Company.
12/09/2014 — I'm quoted in an article about hospital community engagement (Hospitals & Health Networks.).
12/09/2014 — Our work on flu in Healthcare Global.
11/13/2014 — Our work on mental health is covered in Newsweek.
11/7/2014 — I helped organize the Computational Linguistics and Clinical Psychology Hackathon.
10/30/2014 — Our work on flu forecasting is covered by Slate.
10/2/2014 — I'm quoted in a POLITICO article on Ebola response.
8/24/2014 — Talk at the KDD Bloomberg workshop: "Unleash Data: Accelerate Impact". [Video]
8/22/2014 — Our work on mental health is mentioned by Fortune.
8/21/2014 — Talk at the Influenza Prediction Workshop at the Centers for Disease Control and Prevention.
8/19/2014 — Out work on mental health is covered by The Boston Globe.
8/12/2014 — Our work on mental health is covered by Beta Boston
6/27/2014 — I gave an invited talk at the Joint Workshop on Social Dynamics and Personal Attributes in Social Media
5/26/2014 — I'm quoted in a BBC article on email
5/21/2014 — I gave a keynote talk at the eHealth Initiative's National Forum on Data and Analytics
4/28/2014 — Our new AJPM paper on Healthy Mondays has been covered by Bloomberg business week, The Atlantic, and Refinery29
4/11/2014 — Bloomberg news quotes me in an article on disease outbreaks in social media
4/10/2014 — I was on the Osgood Files talking about flu surveillance
4/5/2014 — The Times of London is covering our work on the economy and health by doing their own analysis for the UK
4/1/2014 — Talk on new technology for influenza surveillance at Preparedness Summit 2014
3/24/2014 — New results on flu tracking for cities covered by The Washington Post, The National Journal, The Daily Mail, and local CBS News (Video). The original press release is here
2/15/2014 — Our work on flu tracking was on Weekend Edition Saturday
2/14/2014 — Talk at University of Michigan
2/13/2014 — Talk at Brigham Young University
2/12/2014 — Talk at Amazon's Machine Learning Group
2/11/2014 — Talk at Microsoft Research
2/10/2014 — Talk at San Diego State School of Public Health
1/30/2014 — We hosted NACLO at JHU as the largest site in North America.
1/29/2014 — I had a small role in contributing to the report on The Use of Social Media to Prevent Behavioral Risk Factors Associated with Chronic Disease by the eHealth Initiative.
1/28/2014 — My co-author John Ayers gave a TedX talk on our work.
1/10/2014 — My work on public health effects of the great recession is featured in Huffington Post, New York Times Blogs, Daily Mail and the JHU HUB.
12/2/2013 — Talk at the Johns Hopkins Center for Injury Research and Policy
10/20/2013 — I was on WTOP radio on the National Academy of Engineering segment talking about our work on tracking the flu with Twitter.
10/11/2013 — I will be on a panel at the Mid-Atlantic Student Colloquium on Speech, Language and Learning (MASC-SLL).
8/6/2013 — Talk at Digital Surveillance Workshop at the Centers for Disease Control and Prevention.
7/9/2013 — My work on mining drug forums was featured in the Johns Hopkins Engineering Magazine.
4/30/2013 — Talk for the National Association of County and City Health Officials.
4/22/2013 — Talk at Columbia in the IGERT From Data to Solutions seminar.
4/22/2013 — Talk at the New York City Department of Health and Mental Hygiene.
3/19/2013 — I spoke at the Big Data in Public Health conference.
3/4/2013 — Our work was featured in the Washington Post.
2/28/2013 — I spoke at the Social Media And Response Management Interface Event (SMARMIE). My talk and subsequent panel are online (starts at 3:39.) I am also in the final panel.
2/23/2013 — David Broniatowski, my colleague in CAM in Emergency Medicine, was on Sound Medicine talking about our work.
2/22/2013 — Midday with Dan Rodricks. My segment starts around 25:00.
2/14/2013 — I co-authored the report Understanding and preventing youth violence as part of the Subcommittee on Youth Violence of the Advisory Committee to the Social, Behavioral and Economic Sciences Directorate, National Science Foundation.
2/13/2013 — Our work is covered in a Nature News article.
2/7/2013 — Talk at Columbia in the Biomedical Informatics Department.
1/30/2013 — Our work on tracking influenza with Twitter received a lot of press, including CNN, MarketWatch TV and Michigan Radio.
1/18/2013 — My student Michael Paul has been awarded a Microsoft Research PhD Fellowship.
11/14/2012 — Talk at Emory in the Institute for Quantitative Theory and Methods (QuanTM) Seminar Series.
11/13/2012 — Talk at Georgia Tech in the Robotics and Intelligent Machines Center (RIM) Seminar Series.
10/20/2012 — I will be the NAACL 2013 area chair for machine learning with Phil Blunsom.
10/19/2012 — I am helping to organize the second annual Mid-Atlantic Student Colloquium on Speech, Language and Learning (MASC 2012).
10/11/2012 — I attended the CCC Computing and Healthcare Symposium.
5/3/2012 — Talk at the University of Pennsylvania.
4/30/2012 — Talk at the University of Delaware.
4/1/2012 — I am co-organizing a AAAI 2012 Fall Symposium on Information Retrieval and Knowledge Discovery in Biomedical Text.
3/29/2012 — Talk at the Applied Physics Lab.
3/9/2012 — Talk at University of Texas- Dallas.
2/16/2012 — I am a panelist at the Conference of Digital Disease Detection. A video of my talk is available online.
2/2/2012 — We hosted NACLO.
2/1/2012 — I am teaching Current Topics in Machine Learning (600.775) in the Spring of 2012. [Class site]
1/30/2012 — Talk at the NIH Opportunities in Data Visualization and Visual Analytics for Behavioral and Social Sciences Research.
12/7/2011 — Talk at JHU's BioStats Seminar.
11/15/2011 —Talk at Carnegie Mellon University.
10/28/2011 —Talk at Mass General Center for Experimental Drugs and Diagnostics.
9/23/2011 — We are hosting 140 people at the first Mid-Atlantic Student Colloquium on Speech, Language and Learning.
9/12/2011 — My student Ariya Rastrow was awarded the inaugural Frederick Jelinek Fellowship.
9/1/2011 — A feature on our Twitter+Health work in The Johns Hopkins Magazine.
9/1/2011 — I will be the ACL 2012 area chair for machine learning with Trevor Cohn.
8/15/2011 — I am teaching Machine Learning (600.475) in the Fall of 2011. [Class site]
8/10/2011 — I was on NPR. What fun! Midday with Dan Rodricks [Audio]. Also, see the WYPR health minute [Here] and [Here].
7/16/2011 — Our health mining research received some press coverage: great articles by The Atlantic and NPR; also see CBS News, Wall Street Journal (blog), Huffington Post, BBC, GigaOM. We've also been on TV! WJLA and PressHereTV.
6/30/2011 — Talk at the CLSP summer school. [Video]
6/2/2011 — Congratulations to Carolina Parada, who successfully defended her thesis! She is off to Google Research.
5/23/2011 — Giving a talk at the Applied Physics Lab on entity disambiguation.
4/29/2011 — Giving a talk at Health Informatics Seminar. [Video]
2/3/2011 — We served as one of the largest NACLO host sites.
1/30/2011 — I am teaching a new seminar on Machine Learning.
7/1/2010 — I organized a workshop on Amazon Mechanical Turk at NAACL 2010. All of the data is available: Check it out. We received some press coverage on the workshop.
6/15/2010 — My student Carolina Parada was awarded the 2010 Google Graduate Fellowship in Speech.