about me

My interests are in machine learning and its applications to multimedia, in other words, using statistical techniques to extract meaningful information from images, video, text or sound. I'm also interested in multiple view learning: exploiting different views of data in machine learning tasks, and convex optimization. I'm part of the Computer Audition Lab and the Computational Statistics and Machine Learning group (COSMAL).

projects

• Finding words that are musically meaningful: We use a statistical technique known as sparse canonical component analysis to find words that are highly correlated to accompanying audio signals.


• Modeling how humans describe music: We use Gaussian mixture models to discover the audio structure behind songs that have been labeled with keywords. A machine can use these models to annotate new songs or to retrieve a list of songs based on a keyword query.

publications

• Douglas Turnbull, Luke Barrington, David Torres, and Gert Lanckriet (2008). Semantic Annotation and Retrieval of Music and Sound Effects. IEEE Transactions on Audio, Speech and Language Processing, Volume: 16, Issue: 2. [bib |pdf]


• David Torres, Bharath K. Sriperumbudur, and Gert Lanckriet (2007). Finding Musically MeaningfulWords by Sparse CCA. Neural Information Processing Systems (NIPS) Workshop on Music, the Brain and Cognition. [bib | pdf]


• Bharath K. Sriperumbudur, David Torres and Gert Lanckriet(2007). Sparse Eigen Methods by D.C. Programming International Conference on Machine Learning. [bib | pdf]


• David Torres, Douglas Turnbull, Luke Barrington and Gert Lanckriet (2007). Identifying Words that are Musically Meaningful ISMIR, International Conference on Music Information Retrieval. [bib | pdf]


• Douglas Turnbull, Luke Barrington, David Torres and Gert Lanckriet (2007). Towards Musical Query-by-Semantic Description using the CAL500 Data Set SIGIR, Special Interest Group on Information Retrieval. [bib | pdf]

resume

You can download a pdf version of my resume here.

blog

etfd.blogspot.com

geeky links

• The Theoretical Computer Science Cheat Sheet
• The On-Line Encyclopedia of Integer Sequences Search engine for sequences of numbers. Maintained by AT&T.
• MATLAB array manipulation tips and tricks Tips to speed up your MATLAB code.
• MIT OpenCourseWare is a free educational facility run by MIT. View course notes, slides, exams, etc.

friends

• josiefiend.com / DigitalAmazon.com - Designs by Josiefiend.
• jainek.de Belongs to Werner. Interests in graphics among many other things, really cool cat.