Talks & courses
This is a list of talks and courses, divided by topic. Within each topic, it is in approximate inverse chronological order. To play the talks with narrative and animations, you have to hava Acrobat Reader 9.
High-Dimensional Indexing & Similarity Search:
Similarity Search & Indexing for High-Dimensional Data.
SBBD 2009 — XXIV Brazilian Symposium on Databases.
October 5–9, 2009. Fortaleza, CE, Brazil.
Duration: Original presentation, 3h.
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Abstract:Searching by similarity is a critical operation on many systems, and thus has attracted the attention of many disciplines in Computer Sciences, including Computational Geometry, Machine Learning, Multimedia and, of course, Databases. To perform efficiently, similarity search requires the support of indexing, which suffers from the infamous “curse of the dimensionality”. In this tutorial we will introduce the challenges of indexing and searching high-dimensional data, and present the most recent tools available to “tame the curse”. At the end, the audience will have a good grasp of the current state of the art, the most promising research trends and the challenges still faced by the technology.
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High-Dimensional Data — Application to CBIR.
Research Workshop of the CAPES-COFECUB Project 592/02.
April 6–8, 2009. DCC/UFMG, Belo Horizonte, MG, Brazil.
Duration: Original presentation, 20′ — Recorded narration, 14′.
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Abstract: The troubles of multimedia information retrieval start at its most elementary operation: matching the high-dimensional feature vectors used to describe the data. In this talk, we will discuss how recent innovative methods are taming the infamous ‘curse of dimensionality’ and how they can be used in CBIR. The author will discuss his recent contributions to the advance of the state-of-art on kNN search using space-filling curves and his current research endeavours on the use of low-level multimedia indexing to leverage high-level semantic CBIR systems.
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