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587 results on '"Oliveira, Arlindo"'

52. Comorbidades e evolução clínica em pacientes críticos com COVID-19 atendidos em hospital regional do Planalto Norte Catarinense

Author

Cunha, Renan Pires Carneiro da, primary, Reimann, Oscar Nelson, additional, Lindner, Stephanie, additional, Moreira, Stefan, additional, Nones, Diogo Pasquali, additional, Valli, Daniel D. A. B., additional, Oliveira, Arlindo A., additional, Peres, Gabriel H., additional, Cabral, Filipe Laurindo, additional, Steclan, Chelin Auswaldt, additional, Silva, R. B. Longuinho, additional, and Lang, Michael R., additional

Published
2023
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54. Segmentation of X‐ray coronary angiography with an artificial intelligence deep learning model: Impact in operator visual assessment of coronary stenosis severity

Author

Nobre Menezes, Miguel, primary, Silva, Beatriz, additional, Silva, João Lourenço, additional, Rodrigues, Tiago, additional, Marques, João Silva, additional, Guerreiro, Cláudio, additional, Guedes, João Pedro, additional, Oliveira‐Santos, Manuel, additional, Oliveira, Arlindo L., additional, and Pinto, Fausto J., additional

Published
2023
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56. The bio.tools registry of software tools and data resources for the life sciences

Author

Ison, Jon, Ienasescu, Hans, Chmura, Piotr, Rydza, Emil, Ménager, Hervé, Kalaš, Matúš, Schwämmle, Veit, Grüning, Björn, Beard, Niall, Lopez, Rodrigo, Duvaud, Severine, Stockinger, Heinz, Persson, Bengt, Vařeková, Radka Svobodová, Raček, Tomáš, Vondrášek, Jiří, Peterson, Hedi, Salumets, Ahto, Jonassen, Inge, Hooft, Rob, Nyrönen, Tommi, Valencia, Alfonso, Capella, Salvador, Gelpí, Josep, Zambelli, Federico, Savakis, Babis, Leskošek, Brane, Rapacki, Kristoffer, Blanchet, Christophe, Jimenez, Rafael, Oliveira, Arlindo, Vriend, Gert, Collin, Olivier, van Helden, Jacques, Løngreen, Peter, and Brunak, Søren

Published
2019
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59. Efficient and Accurate Haplotype Inference by Combining Parsimony and Pedigree Information

Author

Graça, Ana, Lynce, Inês, Marques-Silva, João, Oliveira, Arlindo L., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Horimoto, Katsuhisa, editor, Nakatsui, Masahiko, editor, and Popov, Nikolaj, editor

Published
2012
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60. Coronary X-ray angiography segmentation using Artificial Intelligence: a multicentric validation study of a deep learning model

Author

Menezes, Miguel Nobre, Silva, João Lourenço, Valente Silva, Beatriz, Rodrigues, Tiago, Guerreiro, Cláudio, Guedes, João Pedro, Santos, Manuel Oliveira, Oliveira, Arlindo L., Pinto, Fausto J., and Repositório da Universidade de Lisboa

Subjects
Artificial Intelligence, Coronary angiography, Machine learning, Deep learning, Coronary artery disease, Percutaneous coronary intervention
Abstract

© The Author(s) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons. org/licenses/by/4.0/., Introduction: We previously developed an artificial intelligence (AI) model for automatic coronary angiography (CAG) segmentation, using deep learning. To validate this approach, the model was applied to a new dataset and results are reported. Methods: Retrospective selection of patients undergoing CAG and percutaneous coronary intervention or invasive physiology assessment over a one month period from four centers. A single frame was selected from images containing a lesion with a 50-99% stenosis (visual estimation). Automatic Quantitative Coronary Analysis (QCA) was performed with a validated software. Images were then segmented by the AI model. Lesion diameters, area overlap [based on true positive (TP) and true negative (TN) pixels] and a global segmentation score (GSS - 0 -100 points) - previously developed and published - were measured. Results: 123 regions of interest from 117 images across 90 patients were included. There were no significant differences between lesion diameter, percentage diameter stenosis and distal border diameter between the original/segmented images. There was a statistically significant albeit minor difference [0,19 mm (0,09-0,28)] regarding proximal border diameter. Overlap accuracy ((TP + TN)/(TP + TN + FP + FN)), sensitivity (TP / (TP + FN)) and Dice Score (2TP / (2TP + FN + FP)) between original/segmented images was 99,9%, 95,1% and 94,8%, respectively. The GSS was 92 (87-96), similar to the previously obtained value in the training dataset. Conclusion: the AI model was capable of accurate CAG segmentation across multiple performance metrics, when applied to a multicentric validation dataset. This paves the way for future research on its clinical uses., Open access funding provided by FCT|FCCN (b-on). Cardiovascular Center of the University of Lisbon, INESC-ID / Instituto Superior Técnico, University of Lisbon.

Published
2023

62. Fully Generalized Graph Cores

Author

Francisco, Alexandre P., Oliveira, Arlindo L., da F. Costa, Luciano, editor, Evsukoff, Alexandre, editor, Mangioni, Giuseppe, editor, and Menezes, Ronaldo, editor

Published
2011
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63. Estudo Sobre a Incidência de Tumores no Sistema Nervoso Central e na Calota Craniana em Pacientes Atendidos em Hospital Regional do Planalto Norte Catarinense

Author

Villalobos, Angélica, primary, Wagner, André, additional, Marques, Lívia Bianchin, additional, Clazer, Bianca, additional, Reimann Junior, Oscar Nelson, additional, Lindner, Stephanie, additional, Moreira, Stefan, additional, Nones, Diogo Pasquali, additional, Valli, Daniel Alves Branco, additional, Oliveira, Arlindo Américo de, additional, Peres, Gabriel Hoher, additional, Cabral, Filipe Laurindo, additional, Steclan, Chelin Auswaldt, additional, and Lang, Michael Ricardo, additional

Published
2023
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66. Mining Large Query Induced Graphs towards a Hierarchical Query Folksonomy

Author

Francisco, Alexandre P., Baeza-Yates, Ricardo, Oliveira, Arlindo L., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Chavez, Edgar, editor, and Lonardi, Stefano, editor

Published
2010
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67. Parallel and Distributed Compressed Indexes

Author

Russo, Luís M. S., Navarro, Gonzalo, Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Amir, Amihood, editor, and Parida, Laxmi, editor

Published
2010
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69. Efficient Biclustering Algorithms for Time Series Gene Expression Data Analysis

Author

Madeira, Sara C., Oliveira, Arlindo L., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Omatu, Sigeru, editor, Rocha, Miguel P., editor, Bravo, José, editor, Fernández, Florentino, editor, Corchado, Emilio, editor, Bustillo, Andrés, editor, and Corchado, Juan M., editor

Published
2009
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70. Clique Analysis of Query Log Graphs

Author

Francisco, Alexandre P., Baeza-Yates, Ricardo, Oliveira, Arlindo L., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Amir, Amihood, editor, Turpin, Andrew, editor, and Moffat, Alistair, editor

Published
2009
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71. Indexed Hierarchical Approximate String Matching

Author

Russo, Luís M. S., Navarro, Gonzalo, Oliveira, Arlindo L., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Amir, Amihood, editor, Turpin, Andrew, editor, and Moffat, Alistair, editor

Published
2009
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73. Dynamic Fully-Compressed Suffix Trees

Author

Russo, Luís M. S., Navarro, Gonzalo, Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ferragina, Paolo, editor, and Landau, Gad M., editor

Published
2008
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74. Efficient Haplotype Inference with Combined CP and OR Techniques

Author

Graça, Ana, Marques-Silva, João, Lynce, Inês, Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Perron, Laurent, editor, and Trick, Michael A., editor

Published
2008
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77. Fully-Compressed Suffix Trees

Author

Russo, Luís M. S., Navarro, Gonzalo, Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Laber, Eduardo Sany, editor, Bornstein, Claudson, editor, Nogueira, Loana Tito, editor, and Faria, Luerbio, editor

Published
2008
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90. Efficient Haplotype Inference with Pseudo-boolean Optimization

Author

Graça, Ana, Marques-Silva, João, Lynce, Inês, Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Anai, Hirokazu, editor, Horimoto, Katsuhisa, editor, and Kutsia, Temur, editor

Published
2007
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93. Approximate String Matching with Lempel-Ziv Compressed Indexes

Author

Russo, Luís M. S., Navarro, Gonzalo, Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ziviani, Nivio, editor, and Baeza-Yates, Ricardo, editor

Published
2007
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95. O CT-Petro como produto de informação para o estímulo das interações entre grupos de pesquisa e o setor produtivo na região Nordeste.

Author

Escobar Teixeira de Oliveira, Arlindo Figueirôa, Lino da Silva, Marcela, Macedo dos Santos, Raimundo Nonato, and da Silva Oliveira, Victor

Subjects
REGIONAL disparities, NATURAL gas, GOVERNMENT publications, CHEMICAL engineers, RESEARCH teams
Abstract

Copyright of Revista Ibero-Americana de Ciência da Informação is the property of Revista Ibero-Americana de Ciencia da Informacao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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96. A Compressed Self-index Using a Ziv-Lempel Dictionary

Author

Russo, Luís M. S., Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Crestani, Fabio, editor, Ferragina, Paolo, editor, and Sanderson, Mark, editor

Published
2006
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97. Dotted Suffix Trees A Structure for Approximate Text Indexing

Author

Coelho, Luís Pedro, Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Crestani, Fabio, editor, Ferragina, Paolo, editor, and Sanderson, Mark, editor

Published
2006
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99. Faster Generation of Super Condensed Neighbourhoods Using Finite Automata

Author

Russo, Luís M. S., Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Consens, Mariano, editor, and Navarro, Gonzalo, editor

Published
2005
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100. Constraint Relaxations for Discovering Unknown Sequential Patterns

Author

Antunes, Cláudia, Oliveira, Arlindo L., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goethals, Bart, editor, and Siebes, Arno, editor

Published
2005
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