Tag Archives: Jacques Wainer

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

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Empirical Evaluation of Resampling Procedures for Optimising SVM Hyperparameters

Tuning the regularisation and kernel hyperparameters is a vital step in optimising the generalisation performance of kernel methods, such as the support vector machine (SVM). This is most often performed by minimising a resampling/cross-validation based model selection criterion, however there … Continue reading

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Empirical comparison of cross-validation and internal metrics for tuning SVM hyperparameters

Hyperparameter tuning is a mandatory step for building a support vector machine classifier. In this article, the authors study some methods based on metrics of the training set itself, and not the performance of the classifier on a different test … Continue reading

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Low false positive learning with support vector machines

In automated computer-based diagnosis systems, falsely determining that a case is normal is much more serious than falsely determining that the case is abnormal, especially if the system is being used for triage of patients. This is an example where … Continue reading

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Beyond Lesion-based Diabetic Retinopathy: a Direct Approach for Referral

Extending the classical approach of Bags of Visual Words, the latest RECOD research on Diabetic Retinopathy – Beyond Lesion-based Diabetic Retinopathy: a Direct Approach for Referral – has just been published on the Journal of Biomedical and Health Informatics (J-BHI), which … Continue reading

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RECOD student is awarded Brazilian Computer Society Thesis prize

RECOD student Ramon Pires was awarded 3rd place in the Theses and Dissertations Competition of the Brazilian Computer Society for his master thesis on computer-aided diagnosis for diabetic retinopathy. The work was supervised by Prof. Anderson Rocha. The Theses and … Continue reading

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Diabetic Retinopathy Paper Accepted at IEEE EMBC’14

RECOD research on Diabetic Retinopathy has a new paper, now in the IEEE Engineering in Medicine and Biology Conference ! This new work explores the BossaNova representation — an state-of-the-art extension to the bags-of-words model in the task of Diabetic … Continue reading

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FAPESP Magazine Features RECOD Research on Diabetic Retinopathy Screening

FAPESP, the science grants agency for São Paulo state, has showcased RECOD research on automatic screening of Diabetic Retinopathy in its monthly glossy magazine. The research is being conducted by RECOD Ph.D. student J. Ramon Pires, under the supervision of … Continue reading

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RECOD Retinography Research Featured on UNICAMP News

RECOD’s research on the detection of Diabetic Retinopathy lesions on retinographic images was featured on the UNICAMP News (“Jornal da UNICAMP”) #571 (week 19–25, August 2013). The piece showcases the M.Sc. and Ph.D. work of Ramon Pires, and the research … Continue reading

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Prof. Wainer, Prof. Goldenstein and Prof. Rocha @ ACM Communications !

Prof. Jacques Wainer, Prof. Siome Goldenstein and Prof. Anderson Rocha, together with their colleague Prof. Michael Eckmann from Skidmore College had an article published at the August edition of the ACM Communications, the flagship publication of ACM, and one of … Continue reading

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