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Tag Archives: Ricardo Torres
Patent: “Two-tiered method and apparatus for fast and accurate face verification on mobile devices”
Yesterday the BioLive team celebrated their patent request approval by Motorola. This patent, entitled “Two-tiered method and apparatus for fast and accurate face verification on mobile devices”, is an important result of a collaborative research project between RECOD and Motorola. … Continue reading
A graph-based ranked-list model for unsupervised distance learning on shape retrieval
Several re-ranking algorithms have been proposed recently. Some effective approaches are based on complex graph-based diffusion processes, which usually are time consuming and therefore inappro- priate for real-world large scale shape collections. In this article, the authors present a novel … Continue reading
A correlation graph approach for unsupervised manifold learning in image retrieval tasks
In this paper, the authors Daniel Pedronette and Ricardo Torres, discuss a novel unsupervised manifold learning algorithm, which aims at imitating the human behavior in judging similarity among images. The proposed algorithm exploits unlabeled contextual information encoded in the dataset … Continue reading
On Interactive Learning-to-Rank for IR: Overview, Recent Advances, Challenges, and Directions
In this article, the authors deal with the problem of creating interactive information retrieval (IIR) systems nowadays. The work reviews several interactive retrieval related aspects focusing mainly on recent advances, important challenges and promising research directions. The paper shows that, … Continue reading
Pixel-Level Tissue Classification for Ultrasound Images
This paper presents a new method for classifying tissues in ultrasound imagery at the pixel level. The proposed method is basically composed of 1) image normalization, 2) multiscale description, and 3) classification. The main advantage of the proposed method is … Continue reading
Posted in blog, publications, science
Tagged Anderson Rocha, Bernardo Stein, biomedical ultrasonics, carotid images, Daniel Pazinato, Fábio H. Menezes, gradient-based patterns, GSM, JBHI, medical image processing, Otávio Augusto Bizetto Penatti, Pedro Mendes Júnior, pixel-level tissue classification, Rafael de Oliveira Werneck, Ricardo Torres, virtual histology (VH), Waldir Almeida
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Combining re-ranking and rank aggregation methods for image retrieval
In this paper, entitled “Combining re-ranking and rank aggregation methods for image retrieval”, the authors Daniel Pedronette and Ricardo Torres propose four novel approaches for combining re-ranking and rank aggregation methods aiming at improving the effectiveness of CBIR systems. They … Continue reading
TSS & TSB: Tensor scale descriptors within circular sectors for fast shape retrieval
In this paper, entitled “TSS & TSB: Tensor scale descriptors within circular sectors for fast shape retrieval” and published at the Pattern Recognition Letters Journal, the authors propose a novel region-based descriptors for shape-based image retrieval and analysis. They focus … Continue reading
Phenological visual rhythms: Compact representations for fine-grained plant species identification
The plant species identification is a key issue for the phenological observation of tree crowns using phenocams. In this paper, entitle “Phenological visual rhythms: Compact representations for fine-grained plant species identification” and published at Pattern Recognition Letters, Volume 81, 2016, … Continue reading
Nearest neighbors distance ratio open-set classifier
We are very glad to announce that our paper entitled “Nearest neighbors distance ratio open-set classifier” has been accepted in the very prestigious Springer Machine Learning journal. In this work, the authors propose a novel multiclass classifier for open-set recognition … Continue reading
Posted in blog, publications, science
Tagged Anderson Rocha, Bernardo Stein, Daniel Pazinato, machine learning, Nearest neighbors distance ratio, Nearest-Neighbor, open set recognition, Open-set evaluation measures, Open-Set NN, OSNN, Otávio Penatti, Pedro Mendes Júnior, Rafael Werneck, Ricardo Torres, Roberto Medeiros de Souza, Waldir Almeida
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Ph.D. thesis defense: Daniel Moreira
The RECODist Daniel Henriques Moreira has earned his Ph.D. degree with the thesis entitled “Sensitive-Video Analysis” supervised by Prof. Anderson Rocha, from RECOD, and co-supervised by Prof. Siome Goldenstein. The abstract is: Sensitive video can be defined as any … Continue reading
