The designed binary classifier should detect tweets where Twitter users self-declare changing their medication treatments, regardless of being advised by a health care professional to do so. Such changes are, for example, not filling a prescription, stopping a treatment, changing a dosage, forgetting to take the drugs, etc. This task is the first step toward detecting patients non-adherent to their treatments and their reasons on Twitter. The data consists of two corpora: a set of tweets and a set of drug reviews from WebMD.com. Negative and positive reviews are naturally balanced whereas positive and negative tweets are naturally imbalanced. Each set is split into a training, a validation, and a test subset. The participants will be given the training and validation subsets for both corpora and evaluated on both test sets independently. Participants are expected to submit their predictions for both test sets. This year, we will add in the test sets additional reviews and tweets as decoys to avoid manual corrections of the predicted labels. Evaluation script, annotation guidelines, and baseline code will be provided to registered participants.
- Training data: 5,898 Tweets / 10,378 Reviews
- Validation data: 1,572 Tweets / 1,297 Reviews
- Test data: 2,360 Tweets / 1,297 Reviews
- Evaluation metric: F1-score for the change class
Register your team here : https://forms.gle/1qs3rdNLDxAph88n6
After registration approval, you will be invited to join the Google group for the task. Link to the dataset is available in the Google groups banner. If you do not receive the invite please request to join the Google group with team name using the link below.
Google groups : https://groups.google.com/g/smm4h21-task-3
Link to Codalab : https://competitions.codalab.org/competitions/28766
Annotation Guidelines: https://upenn.box.com/s/9aqtkfa0zy57wusj3ai99ldjcz5a7idg
Baseline Classifier: https://upenn.box.com/s/ktcl7urxvz11ngw4lpvsf94ifhtgpz1r
Evaluation Period for Task 3 :
|Test Dataset Release||27th Feb 2021 12:00am UTC|
|Predictions Due||1st Mar 2021 11:59pm UTC (3:59pm PST)|
Subtask 3a : Tweet classification
Submission format: Please use the format below for submission. Submissions should contain two columns tweet_id and label separated by tabspaces. All other columns will be ignored. Predictions for each task should be contained in a single .tsv (tab separated values) file. This file (and only this file) should be compressed into a .zip file. Please upload this zip file as submission.
Subtask 3b : WebMD classification
Submission format: Please use the format below for submission. Submissions should contain two columns SOURCE_FILE and label separated by tabspaces. All other columns will be ignored. Predictions for each task should be contained in a single .tsv (tab separated values) file. This file (and only this file) should be compressed into a .zip file. Please upload this zip file as submission.
Contact information: Davy Weissenbacher (firstname.lastname@example.org)