- I am visiting the Mathematical and Computing Sciences Instiute of the University of São Paulo (ICMC – USP) at São Carlos, on Tuesday, November 24. I’ll visit Professors Agma Traina and Caetano Traina Jr. and their team — they have a long experience on similarity search, and have proposed the Slim-Tree, a metric space technique. I’ll give a talk on the Scalability Issues of Multimedia Information Retrieval.
- That same week, I am visiting the Mathematics and Statistics Institute of the University of São Paulo (IME – USP) at São Paulo, on Friday, November 27. I’ll visit Professor Roberto Cesar Jr. and his student, the Ph.D. candidate Marcelo Hashimoto, both of whom I had the pleasure to meet on last SIBGRAPI. I’ll also give a talk there, the title will be announced soon. (EDIT 26/11: The talk will be about “Similarity search for Multimedia” and will be heavily based on my SBBD 2009 Tutorial — more details can be found on my Google Calendar).
- The slides of my (and Prof. Matthieu Cord’s) Tutorial on Similarity Search and High-Dimensional Indexing, which I gave at this year’s SBBD, are finally available.
- I am still working to make available the slides of my (and Prof. Matthieu Cord’s) Tutorial on Advanced Techniques for CBIR, which I gave at this year’s SIBGRAPI. The companion article to the tutorial, however, is already available.
I guess that for all people involved, DocEng’09 was a success. Like last year, the conference was small — I think that we were 60 or 70 participants — but the quality of the works presented was high, and the scientific exchange was extremely interesting. In DocEng, you get to meet everyone individually, something which is unfeasible at large-scale conferences.
Thematically, the conference has a broad scope, centered around the representation, processing, analysis, storage and retrieval of documents. My main research topic concerns the retrieval of multimedia documents, and is somewhat at the fringe of the conference theme. Nevertheless, people seemed genuinely interested and I’ve got many useful insights and suggestions.
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I have just arrived at Paris, where I will meet my former Ph.D. supervisor Prof. Matthieu Cord, among other colleagues. I intend to advance our research on high-dimensional multimedia indexing and large scale multimedia retrieval. I am also giving a talk about my current research pursuits at the ETIS labs, on Cergy-Pontoise, next Tuesday, September 22nd.
I’ve been invited by Prof. Francisco Pelaez and Prof. Camila Barione of the Centre of Mathematics Computing and Cognition of the Federal University of ABC to give my talk on kNN Search and CBIR (Content Based Image Retrieval).
I will discuss my past work, showing the three methods I’ve proposed during my thesis on high-dimensional multimedia indexing on large databases. But I also discuss some of my new research pursuits, related to the use of very discriminant local descriptors, like SIFT, on complex semantic queries, which require generalisation.
The talk, in Portuguese, will be on Tuesday May 26, at the Block B, room A801 of the Federal University of the ABC, which is located at the Rua Santa Adélia, 166, Santo André — SP, Brazil, CEP 09210-170. Their phone number is +55 11 4996-3166.
If you have a Google Calendar, you can save the date by clicking below:
Prof. Ricardo Torres has invited me to the Institute of Computing of the State University of Campinas, where I am giving a talk on the work I’ve done on my thesis. I will explore the challenges of kNN search (also known as k nearest neighbours search, or simply similarity search) and discuss the three original methods I’ve proposed: the 3-way trees, which are based on the traditional KD-Tree with the addition of redundant overlapping nodes; the projection KD-Forests, my first attempt of using an index composed of multiple moderate-dimensional sub-indexes; and finally the Multicurves, an index based on the use of multiple moderate-dimensional space-filling curves, which has several nice properties like ease of implementation, dynamicity (tolerance to insertions and deletions without performance degradation) and avoidance of random accesses (thus making secondary-memory implementation easier).
The talk will be in Portuguese.