Aplicaciones e innovación de la ingeniería en ciencia y tecnología最新文献

Clasificación automática de nódulos mamográficos basada en fusión de información visual multi-vista 基于多视图视觉信息融合的乳房x线照相术结节自动分类

Aplicaciones e innovación de la ingeniería en ciencia y tecnología Pub Date : 1900-01-01 DOI: 10.7476/9789978104910.0009

Fabián Narváez

{"title":"Clasificación automática de nódulos mamográficos basada en fusión de información visual multi-vista","authors":"Fabián Narváez","doi":"10.7476/9789978104910.0009","DOIUrl":"https://doi.org/10.7476/9789978104910.0009","url":null,"abstract":"Correct mammography assessment and interpretation demands great expertise of radiologist observer and depends directly on a suitable visual analysis of mammographic findings and their correlation with radiographic features extracted from different mammographic views. In this paper, an automatic classification scheme for mammographic nodules contained on Regions of Interest (ROIs) is presented, which is based on an information fusion approach by using RoIs extracted from two different mammographic views of the same breast, a Mediolateral Oblique (MLO) view and a craniocaudal (CC) view, respectively. Once the expert radiologist selects a RoI from the two mammographic projections, those are characterized by using a multiresolution and multiscale decomposition approaches. For doing so, each RoI is projected into two different spaces defined by Zernike moments and Curvelet transform, respectively. Finally, this extracted heterogeneous information is optimally fused by using a Multiple Kernel Learning strategy based on Support vector machine scheme. The performance of the herein proposed strategy, for classifying benign and malignant nodules, was evaluated respect to the classical mammographic analysis based on only mammographic view, for which a set of 980 ROIs extracted from 490 cases and other set of 216 RoI extracted from 108 cases, which were extracted from DDSM and INBreast databases, respectively. The obtained results reported a sensitivity of 98.3% and a specificity of 94.5% respect to 96.2% and 93.1% of sensibility and specificity, respectively, and obtained by the analysis based on an only mammographic view. These results suggest that the herein proposed strategy could be useful in real clinic scenarios and could be contributing to the training of new radiologists.","PeriodicalId":319580,"journal":{"name":"Aplicaciones e innovación de la ingeniería en ciencia y tecnología","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128209328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diseño de una arquitectura heterogénea para la gestión eficiente de recursos FPGA en un cloud privado 设计异构架构，高效管理私有云中的FPGA资源

Aplicaciones e innovación de la ingeniería en ciencia y tecnología Pub Date : 1900-01-01 DOI: 10.7476/9789978104910.0007

Julio Proaño Orellana, María Blanca Caminero, Carmen Carrión

{"title":"Diseño de una arquitectura heterogénea para la gestión eficiente de recursos FPGA en un cloud privado","authors":"Julio Proaño Orellana, María Blanca Caminero, Carmen Carrión","doi":"10.7476/9789978104910.0007","DOIUrl":"https://doi.org/10.7476/9789978104910.0007","url":null,"abstract":"The efficient use of resources in cloud computing environments is one of the many topics that have attracted many scientists in recent years. Today there is a wide variety of computing resources available in Cloud Computing infrastructures, such as multi-core CPUs, GPUs and FPGAs. In particular, accelerator-based architectures using FPGAs can provide Julio Proaño Orellana, María Blanca Caminer y Carmen Carrión 166 Diseño de una arquitectura heterogénea para la gestión eficiente de recursos FPGA en un cloud privado significant business value in Cloud environments. FPGA devices offer better performance due to their high processing capacity with predictable latency and low power consumption. However, the management of these resources in a Cloud environment is not trivial. In this work, an architecture designed to integrate FPGAs as accelerators in a private Cloud is presented. The proposal takes into account quality of service (QoS) requirements. Thus, the QoS indicators are related to the requirements of the users. The proposed architecture seeks the right combination between CPUs and FPGAs in a Cloud environment.","PeriodicalId":319580,"journal":{"name":"Aplicaciones e innovación de la ingeniería en ciencia y tecnología","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114909339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Despliegue óptimo de redes PON, usando mapas reales, para un gran número de usuarios con diversas demandas de ancho de banda PON网络的优化部署，使用真实地图，针对不同带宽需求的大量用户

Aplicaciones e innovación de la ingeniería en ciencia y tecnología Pub Date : 1900-01-01 DOI: 10.7476/9789978104910.0008

G. Arévalo, Roberto Gaudino

引用次数: 0

Prólogo

Aplicaciones e innovación de la ingeniería en ciencia y tecnología Pub Date : 1900-01-01 DOI: 10.7476/9789978104910.0001

Esteban Mauricio Inga Ortega

引用次数: 0

Métodos de localización de fallas en sistemas eléctricos de distribución con presencia de generación distribuida 分布式发电存在的配电系统故障定位方法

Aplicaciones e innovación de la ingeniería en ciencia y tecnología Pub Date : 1900-01-01 DOI: 10.7476/9789978104910.0004

Ramón Pérez, Carmen Vásquez, A. Viloria

引用次数: 0

Evaluación de la cosecha de neblina como una fuente potencial para el aprovechamiento de agua 评估雾收获作为水资源利用的潜在来源

Aplicaciones e innovación de la ingeniería en ciencia y tecnología Pub Date : 1900-01-01 DOI: 10.7476/9789978104910.0005

Christian Domínguez, P. Echeverría, M. Villacís, S. Violette

{"title":"Evaluación de la cosecha de neblina como una fuente potencial para el aprovechamiento de agua","authors":"Christian Domínguez, P. Echeverría, M. Villacís, S. Violette","doi":"10.7476/9789978104910.0005","DOIUrl":"https://doi.org/10.7476/9789978104910.0005","url":null,"abstract":"The term “smart cities” is usually associate to the use of information technologies in a city infrastructure. Nevertheless, the use of natural resources, such as water, is an important aspect to satisfy the inhabitants necessities. In this sense, techniques to supply water must be sustainable and environmentally friendly, which is the case of fog water collection. In this study, we present a methodology to quantify fog water intercepted by a fog gauge system and to assess its potential as a source of water supply. This methodology is tested in an experimental site located at the highlands of San Cristobal Island (Galapagos), which included two months monitoring of the main meteorological variables and fog interception. Three fog gauges were used to quantify fog interception, a cylindrical (CFC) and two standards of 35% (SFC35) and 50% (SFC50) shading coefficient, respectively. Given that fog gauge collectors capture both fog and rainfall, we used a geometrical model to separate both variables. Results show that collectors’ CFC, SFC35 and SFC50 have an average performance of 3.7, 4.1 and 4.8 mm/day, respectively. SFC50 collector presents the best performance which can be related to its relative higher aerodynamic efficiency. The analysis of the meteorological variables evidences that fog water collection potential can be even higher at this site.","PeriodicalId":319580,"journal":{"name":"Aplicaciones e innovación de la ingeniería en ciencia y tecnología","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124747731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1