Search Results - "Neves, João C."

GANprintR: Improved Fakes and Evaluation of the State of the Art in Face Manipulation Detection by Neves, Joao C., Tolosana, Ruben, Vera-Rodriguez, Ruben, Lopes, Vasco, Proenca, Hugo P, Fierrez, Julian

“…The availability of large-scale facial databases, together with the remarkable progresses of deep learning technologies, in particular Generative Adversarial…”
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Improving the evidential value of low-quality face images with aggregation of deep neural network embeddings by Ribeiro, Rafael Oliveira, Neves, João C., Ruifrok, Arnout, de Barros Vidal, Flavio

“…•An effective strategy to improve face recognition of low-quality facial images.•Validation of this strategy under forensically relevant challenging…”
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Distribution costs and real exchange rate dynamics during exchange-rate-based stabilizations by Burstein, Ariel T, Neves, João C, Rebelo, Sergio

“…This paper studies the role played by distribution costs in shaping the behavior of the real exchange rate during exchange-rate-based stabilizations. We…”
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Detection and separation of overlapping cells based on contour concavity for Leishmania images by Neves, João C., Castro, Helena, Tomás, Ana, Coimbra, Miguel, Proença, Hugo

“…Life scientists often must count cells in microscopy images, which is a tedious and time‐consuming task. Automatic approaches present a solution to this…”
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Fusing Vantage Point Trees and Linear Discriminants for Fast Feature Classification by Proença, Hugo, Neves, João C.

“…This paper describes a classification strategy that can be regarded as a more general form of nearest-neighbor classification. It fuses the concepts of nearest…”
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Using data envelopment analysis to select strategies that improve the performance of hotel companies by Neves, João C, Lourenço, Sofia

“…Purpose - The aim of this paper is to illustrate the value of data envelopment analysis (DEA) for strategic analysis and performance management in the hotel…”
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Zero-shot face recognition: Improving the discriminability of visual face features using a Semantic-Guided Attention Model by Patrício, Cristiano, Neves, João C.

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Expression of Acetylcholine and Its Receptor in Human Sympathetic Ganglia in Primary Hyperhidrosis by de Moura Júnior, Nabor B., MD, das-Neves-Pereira, João C., MD, de Oliveira, Flávio R.G., MD, Jatene, Fabio B., MD, PhD, Parra, Edwin R., MD, Capelozzi, Vera L., MD, PhD, Wolosker, Nelson, MD, PhD, de Campos, José R.M., MD, PhD

“…Background The pathophysiologic characteristics of primary hyperhidrosis are not well understood and seem to be related to a sympathetic nervous system…”
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Deep-PRWIS: Periocular Recognition Without the Iris and Sclera Using Deep Learning Frameworks by Proenca, Hugo, Neves, Joao C.

“…This paper is based on a disruptive hypothesis for periocular biometrics-in visible-light data, the recognition performance is optimized when the components…”
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Visible-wavelength iris/periocular imaging and recognition surveillance environments by Proença, Hugo, Neves, João C.

“…Visual surveillance cameras have been massively deployed in public urban environments over the recent years, as a crime prevention and law enforcement…”
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IRINA: Iris Recognition (Even) in Inaccurately Segmented Data by Proenca, Hugo, Neves, Joao C.

“…The effectiveness of current iris recognition systems depends on the accurate segmentation and parameterisation of the iris boundaries, as failures at this…”
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Coherent Concept-based Explanations in Medical Image and Its Application to Skin Lesion Diagnosis by Patricio, Cristiano, Neves, Joao C., Teixeira, Luis F.

“…Early detection of melanoma is crucial for preventing severe complications and increasing the chances of successful treatment. Existing deep learning…”
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A genetic algorithm-based approach to cost-sensitive bankruptcy prediction by Chen, Ning, Ribeiro, Bernardete, Vieira, Armando S., Duarte, João, Neves, João C.

“…► We present an evolutionary approach for cost-sensitive bankruptcy prediction. ► The cost preference is integrated into the fitness function of genetic…”
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INVESTMENT PRICES AND EXCHANGE RATES: SOME BASIC FACTS by Burstein, Ariel T., Neves, João C., Rebelo, Sergio

“…This paper documents four basic facts about investment goods and investment prices. First, investment has a very significant nontradable component in the form…”
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Biometric Recognition in Surveillance Environments Using Master-Slave Architectures by Proenca, Hugo, Neves, Joao C.

“…The number of visual surveillance systems deployed worldwide has been growing astoundingly. As a result, attempts have been made to increase the levels of…”
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Dynamic camera scheduling for visual surveillance in crowded scenes using Markov random fields by Neves, Joao C., Proenca, Hugo

“…The use of pan-tilt-zoom (PTZ) cameras for capturing high-resolution data of human-beings is an emerging trend in surveillance systems. However, this new…”
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A Reminiscence of "Mastermind": Iris/Periocular Biometrics by "In-Set" CNN Iterative Analysis by Proenca, Hugo, Neves, Joao C.

“…Convolutional neural networks (CNNs) have emerged as the most popular classification models in biometrics research. Under the discriminative paradigm of…”
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Coordination and control in emerging international construction firms by Neves, Joao C., Bugalho, Antonio

“…Decisions pertaining to the coordination and control of subsidiaries made by emerging international construction firms are crucial for the success of their…”
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Joint Head Pose/Soft Label Estimation for Human Recognition In-The-Wild by Proença, Hugo, Neves, Joao C., Barra, Silvio, Marques, Tiago, Moreno, Juan C.

“…Soft biometrics have been emerging to complement other traits and are particularly useful for poor quality data. In this paper, we propose an efficient…”
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Soft Biometrics: Globally Coherent Solutions for Hair Segmentation and Style Recognition Based on Hierarchical MRFs by Proenca, Hugo, Neves, Joao C.

“…Markov Random Fields (MRFs) are a popular tool in many computer vision problems and faithfully model a broad range of local dependencies. However, rooted in…”
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