Research
My research interests are in Data Mining, Machine
Learning and Neural Networks, and their applications
for Pattern Recognition, text, image and video
processing. In particular, I am interested in
algorithms for classification and prediction
(supervised learning) and clustering (unsupervised
learning) and their applications.
- In a classification task, given a set of examples
with their correct class (label), the goal is to
build a classifier that can be used to predict the
class of new, unseen, examples. Some of the
classification tasks I have worked on are:
classifcation of sleep stages in babies from EEG,
EMG and other biological signals, decoding motor
commands from EEG brain activity (brain-computer
interfaces), recommending movies using collaborative
filtering and content-based approaches, recognising
fingerprints, filtering spam from non-spam e-mail.
Prediction tasks are similar to classification tasks
but the value to be predicted is numeric. I have
worked on electricity load prediction from previous
historical data and predicting sucessful
interactions in online dating.
- In clustering, given a set of unlabelled examples, the goal is to group data into several clusters according to their similarity. I have worked on clustering for educational data mining (extracting patterns distinguishing the stronger and weaker groups in software development projects from online interaction traces); keyframe extraction in video, video summarization and non-linear access to the relevant material and finding similar genes in microarray data.
I am a member of CHAI and Schwa Lab.
See also publications, students and reviewing
Research Interests
- Data Mining, Machine Learning and Neural Networks, in particular methods for classification and prediction
- Recommender Systems, in particular People to
People Recommenders (e.g. matching people in online
dating systems)
- Text Mining and Sentiment Analysis
- Pattern Recognition (e.g. analysing biomedical
data)
- Educational Data Mining (mining student logs, assessment data and student evaluation of teaching)
Current projects
- Recommender systems for online dating (with Joshua
Akehurst, Luiz Pizzato, Kalina Yacef, Judy Kay and
Tomasz Rej) [ chai
intranet ]
- Electricity load forecasting (with Mashud Rana,
Valentina Cupac, Alexandra Kotillova and Vassilios
Agelidis)
- Sentiment analysis (with Tim O'Keefe and James Curran)
Research grants
- Smart Services CRC grant: Personalisation H3,
Judy Kay, Irena Koprinska and Kalina Yacef, $142K,
2010-2011.
- Smart Services CRC grant: Multi-channel Content
Delivery and Mobile Personalisation H3,
James Curran, Michael Fry, Judy Kay, Irena
Koprinska, Bob Kummerfeld and Kalina Yacef, $379K,
2010-2011.
- Smart Services CRC grant: Personalisation,
Judy Kay, James Curran, Irena Koprinska, Kalina
Yacef. $253K, 2009-2010.
- University of Sydney Bridging support grant: Sequential patttern
analysis in learning traces, Kalina Yacef,
Judy Kay and Irena Koprinska, $15K, 2007.
- University of Sydney bridging support grant: Data Mining of Learner Models, Kalina Yacef, Judy Kay and Irena Koprinska, $36K, 2006.
- Smart Internet Technology CRC grant: Bridging the Gap: Smart Support for the Intergenerational Distributed Family, Bob Kummerfeld, Judy Kay, Kalina Yacef, Irena Koprinska and Josiah Poon, $270K, 2005-2007.
- Smart Internet Technology CRC grant: Machine Learning for the Smart Personal Assistant, Irena Koprinska and Josiah Poon, $19K, 2003-2004. Collaboration with ANU and Griffith University.
- SESQUI Early Career grant: Video Segmentation and Summarization Using Neural Networks, Irena Koprinska, $16K, 2002.
- Smart Internet Technology CRC: Knowledge Aquisition and Machine Learning, Joseph Davis, Judy Kay, Irena Koprinska, Josiah Poon, Masahiro Takatsuka and Kalina Yacef, $46K, 2002.
Conferences
| IJCAI: | 2013
| 2011
| 2009
| 2007
| 2005 | ECAI: | 2012 | 2010 | 2008 | 2006 | AusAI: | 2011 | 2010 | 2009 | ECML-PKDD: | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | ICML: | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | KDD: | 2011 | 2009 | ICDM | 2011 |2010| PAKDD: | 2012 | 2011 | 2010 | 2009 | AusDM: |2011 | 2009 | 2008 | RecSys: | 2012 | 2011 | 2010 | |
ICPR: | 2012 | 2010 | 2008 | IJCNN: | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | ICANN: | 2011 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | ESANN: | 2012 | 2011 | WI: | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | EUSIPCO: | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | ADCS: | 2011 | 2010 | 2009 | 2006 | 2004 | 2003 | ACSW: | 2012 | 2011 | EDM: | 2012 | 2011 | |