检索结果-内蒙古大学图书馆

Computer Science Society (SCCC) International Conference Chilean FLAGGED

作者： Gustavo Rostirolla Rodrigo da Rosa Righi Cristiano André da Costa Jorge Luis Victória Barbosa Applied Computing Graduate Program - Unisinos Av. Unisinos 950 - São Leopoldo RS Brazil

ISBN: (纸本)9781509033409

As a result of rural and suburban migration to the cities, urban life has become a significant challenge for citizens and mayors, imposing a huge concern in the sustainable use of resources like energy, water, transportation and housing. Smart cities are the biggest bet to address these challenges efficiently through a real-time monitoring approach which aims to assist in intelligent planning and sustainable urban development. However, to accomplish this monitoring efficiently and to enable the sustainable use of resources, it is necessary an integration between citizens, city devices and the platform where the data is stored and processed. In this context, we are proposing the 3LES model (3 Levels of Energy Saving for Smart Cities), a model that combines data from citizens, city devices and nodes from the processing plataform to offer a multilevel energy saving proposal. 3LES must act transparently without affecting the quality of the services already offered in the city. This paper presents the components of management and monitoring of power consumption at various levels, as well as a model that monitors the energy consumption of elastic cloud applications. The results are promising, with a model that allows the estimation of the energy consumption of elastic applications based on CPU and memory traces with an average and median precision of 97.15% and 97.72%. In addition, we obtained a reduction of more than 90% in the energy spent in public lighting in the city of Rome when analyzing the citizens' location.

关键词： Portable document format IEEE Xplore

来源：评论

学校读者我要写书评

暂无评论

Elastic Management of Physical Spaces and Objects in Multi-Hospital Environments

Elastic Management of Physical Spaces and Objects in Multi-H...

引用

IEEE International Conference on Internet of Things

作者： Rodrigo da Rosa Righi Gustavo Rostirolla Cristiano André da Costa Murillo Goulart érico Rocha Applied Computing Graduate Program-Unisinos-Av. Unisinos 950-S?o Leopoldo RS Brazil

ISBN: (纸本)9781509058815

The fast growing and the aging of the population are some of the major problems today in terms of medical treatment in public or private hospitals. In this context, particularly talking about the health equipments belonging to each hospital, we also observe that governments and administrators still face difficulties in overseeing the tracking, allocation and management of such equipments in real-time. The gap of acquiring a global overview about what each hospital has or not invariably leads to resource wasting in some places, while there is a lacking of resources in others, so providing a deficient service at regional or national scale. Here, we are proposing the EMH (Elastic Multi-hospital Management) model, which uses the cloud elasticity facility to provide a distributed framework for managing things including physical spaces and objects at real-time within the context of multiple healthcare institutions. Our solution consists in offering a centralized management control center that works with cloud elasticity to enlarge or reduce the number of virtual machines to support the variable incoming demands from the hospitals. Thus, the idea is to subsidize real-time decision making in favor of managers who can, for instance, plan expansions, new health policies or equipment exchanges between hospitals. EMH is based on the RFID (Radio-frequency identification) sensor tracking technology, combined with the client-server Web Service concept, to detect motion and usability of objects. Finally, we developed a prototype of the EMH model which emphasized the benefits on providing a unique administration point and handling incoming workload with cloud elasticity to address user requests inside an acceptable response time (here denoted as lower than 200 ms).

关键词： Hospitals Performance Cloud Elasticity

来源：评论

学校读者我要写书评

暂无评论

Congestion control with ECN support in poll-based multicast protocols

Congestion control with ECN support in poll-based multicast ...

引用

IEEE Symposium on Computers and Communications (ISCC)

作者： M.P. Barcellos A. Detsch Post-graduate Program on Applied Computing PIPCA/UNISINOS Sao Leopoldo Rio Grande do Sul Brazil

Most of the traffic in the Internet nowadays is transmitted using TCP, or transport control protocol. The stability of the Internet depends on the congestion control being performed by this protocol, as well as equivalent mechanisms employed by other protocols. The ECN technique (explicit congestion notification), in which packets forwarded by routers are marked whenever congestion is about to occur (or already occurring), allows a transmitter to reduce the sending rate accordingly without relying on packet drops. ECN has not been fully explored, particularly regarding multicast protocols. This paper presents models of poll-based reliable multicast protocols and extends them with a new single-rate congestion control mechanism that harnesses ECN. Simulation results show that it provides fairness between flows from multiple sources, and is TCP-friendly. Further, they demonstrate the substantial efficiency gain obtained with the use of ECN in multicast.

关键词： Multicast protocols Sliding mode control Internet Transport protocols Multicast algorithms Scalability Signal generators Stability Transmitters Grid computing

来源：评论

学校读者我要写书评

暂无评论

Feature selection and image classification using rough sets theory

Feature selection and image classification using rough sets ...

引用

IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Alex Sandro Aguiar Pessoa Stephan Stephany Leila Maria Garcia Fonseca Postgraduate Program in Applied Computing National Institute for Space Research Brazil Computing and Applied Mathematics Laboratory National Institute for Space Research Brazil Image Processing Division National Institute for Space Research Brazil

Current generation of satellite imaging sensors include multispectral or even hyperspectral devices. The resulting multiple images that are acquired require new processing and analysis techniques. Image classification processing demands can be very high requiring feature/attribute selection in order to employ a minimum number of bands while keeping good classification accuracy. This work shows the use of the Rough Sets theory for multi-band image classification. This theory has a good and simple mathematical formalism and does not requires further informations such as the pertinence degree or the probability distribution in the classification process. The case study was performed with a 7-band Landsat 5 image showing the suitability of the feature selection approach and its potential to be employed in multi or hyperspectral image classification.

关键词： Decision support systems

来源：评论

学校读者我要写书评

暂无评论

Social Network Users Switching Platforms Behaviour: A Proposal for Research Explorations using a Mixed Method Approach

Social Network Users Switching Platforms Behaviour: A Propos...

引用

International Conference on Information Technology, Information Systems and Electrical Engineering (ICITISEE)

作者： Timothy McBush Hiele Andree E. Widjaja Calandra Alencia Haryani Applied Computing Program Ming Chuan University Taipei Information System Universitas Pelita Harapan Tangerang Indonesia

ISBN: (数字)9781728151182

ISBN: (纸本)9781728151199

This paper proposes a novel research proposal to explore users switching platforms behaviour within the context of social network sites. The aim is to investigate the key factors essential to social network users' decision to switch platform. In this regard, a mixed methods approach of an exploratory-qualitative study (interviews), followed by a confirmatory-quantitative study (survey) will be proposed, hence so called a mix-method research design. The proposed study also specifically aims to contribute to Information Systems literature by adding value to the users' switching decision in social network sites platform, and extending the use of switching cost theory. In particular, by anticipating the salient factors affecting the social network sites users to switch platforms, as well as interrelationships using a mixed method approach.

关键词： Social networking (online) Research and development Information systems Psychology

来源：评论

学校读者我要写书评

暂无评论

Identification and quantification of kaolinite in mixtures with goethite using short-wave infrared (SWIR) reflectance spectroscopy 37

Identification and quantification of kaolinite in mixtures w...

引用

37th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017

作者： De Souza, Marcelo K. Veronez, Mauricio R. Tognoli, Francisco M. W. Gonzaga, Luiz De Souza, Lais V. Kochhann, Marcus V. L. Da Silva, Nadine G. Marson, Fernando P. Cagliari, Joice Graduate Program in Geology Vale Do Rio Dos Sinos University São Leopoldo RS Brazil Vale Do Rio Dos Sinos University São Leopoldo RS Brazil Graduate Program in Applied Computing Vale Do Rio Dos Sinos University São Leopoldo RS Brazil

ISBN: (纸本)9781509049516

We investigate here the potential of the spectroscopy in the identification and quantification of mixtures of kaolinite and goethite from the Continuum Removal (CR) of the spectra in the short-wave infrared. For this purpose, spectral measurements of the kaolinite, goethite, and controlled mixtures of these minerals were systematically performed. The continuum of the results were removed, the depth of the kaolinite diagnostic absorption was calculated and compared with a spectral library. It was possible to identify the kaolinite with high determination coefficient (R2>0.95) when its proportion reaches at least 60% in the mixture. For quantification purposes, it was possible to quantify kaolinite using the diagnostic absorption feature depth in the CR with a coefficient of determination of 0.99. © 2017 IEEE.

关键词： Absorption Minerals Reflectivity Spectroscopy Libraries Geologic measurements Remote sensing

来源：评论

学校读者我要写书评

暂无评论

A Novel Approach for Commercial Opportunities Qualification Using the BANT Methodology under the Fuzzy Set Theory Framework. 28th

A Novel Approach for Commercial Opportunities Qualification ...

引用

28th International Conference on Knowledge Based and Intelligent information and Engineering Systems, KES 2024

作者： Leite, Marcus Vinicius Abe, Jair Minoro Hoffmann Souza, Marcos Leandro Graduate Program in Production Engineering-Paulista University-UNIP Rua Dr. Bacelar 1212 São Paulo-SP04026002 Brazil Graduate Program in Applied Computing-Vale do Rio dos Sinos University-UNISINOS Av. Unisinos 950 - São LeopoldoRS-93022-000 Brazil

Demand generation is crucial for organizations, supplying sales teams with well-qualified commercial opportunities. Despite the wide variety of existing opportunity qualification methodologies, the subjective nature of experts' final evaluation remains an obstacle to efficiency and productivity in the business process. This research investigated how Fuzzy Set Theory and Fuzzy Logic could be applied to the BANT methodology for qualifying commercial opportunities, aiming to replace these deliberative evaluations by experts to increase the sales cycle performance. A fuzzy inference system was developed to emulate the assessments of the experts. The analysis of the ratings obtained after processing a sample of commercial opportunities from 2022 and 2023 confirmed the system's effectiveness in aligning with expert perceptions. While the study indicated room for refinements in the model, the findings underscore the potential to streamline the qualification of opportunities and improve sales cycle performance. © 2024 The Authors.

关键词： Fuzzy set theory

来源：评论

学校读者我要写书评

暂无评论

GreenHPC: A novel framework to measure energy consumption on HPC applications 4

GreenHPC: A novel framework to measure energy consumption on...

引用

4th International Conference on Sustainable Internet and ICT for Sustainability, SustainIT 2015

作者： Rostirolla, Gustavo Da Rosa Righi, Rodrigo Rodrigues, Vinicius Facco Velho, Pedro Padoin, Edson Luiz Applied Computing Graduate Program Unisinos - Av. Unisinos 950 São Leopoldo RS Brazil INRIA - Univates 2004 route de Lucioles BP93 Sophia Antipolis CEDEX06902 France Ijui RS Brazil

ISBN: (纸本)9783901882708

Energy consumption on systems that have a continuous power source is tightly-related to both the computing time of an application and its required CPU load. Considering the scope of HPC applications which commonly have a time precision in nano or milliseconds, we observe a lack of systems that combine appropriate sampling rate, low intrusiveness and low cost. In this context, this article presents a model called GreenHPC that uses a hall effect sensor to precisely capture current with an arbitrary timeslice on HPC applications. Its scientific contribution relies on analyzing the energy consumption at a cluster scale, without application intrusiveness, showing the impact of maintaining idle nodes or turning them off for energy saving. Furthermore, considering the use of GreenHPC over the execution of a seismic wave application, we also present the number of employed processors which present the best energy consumption index. Finally, we have used the obtained results to infer a model to estimate energy consumption of HPC applications. All the developed work has a special concern on reproducibility, so all data and hardware schematics are available for download at 1. © 2015 IFIP.

关键词： Energy utilization

来源：评论

学校读者我要写书评

暂无评论

Enhancing Synthetic Well Logs with PCA-Based GAN Models 23

Enhancing Synthetic Well Logs with PCA-Based GAN Models

引用

23rd IEEE International Conference on Machine Learning and Applications, ICMLA 2024

作者： Garcia, Luciano Garim De Oliveira Ramos, Gabriel De Oliveira, José Manuel Marques Teixeira Da Silveira, Ariane Santos Universidade do Vale do Rio dos Sinos Applied Computing Graduate Program São Leopoldo Brazil Center of Excellence in Geological and Numerical Modeling Universidade do Vale do Rio dos Sinos São Leopoldo Brazil

ISBN: (纸本)9798350374889

The generation of synthetic well log data is crucial for enhancing the understanding and exploration of subsurface reservoirs. This paper introduces a novel Generative Adversarial Network (GAN) model that incorporates a Principal Component Analysis (PCA)-based loss function to improve the quality of synthetic well log data. The proposed method is distinguished by its ability to generate complete well log datasets, rather than just individual logs or completing partial logs. Traditional GANs utilize cross-entropy loss but often fail to capture the complex structural patterns inherent in well logs. By integrating PCA into the loss function, our model not only distinguishes real from synthetic data but also ensures that the synthetic data retains the intrinsic variability and relationships observed in real logs. We validate our approach using histograms, correlation heatmaps, dimensionality reduction techniques (PCA and t-SNE), and a discriminative task. Results show that synthetic data generated with PCA-based loss aligns closely with real data, demonstrating superior preservation of statistical and structural characteristics. This advancement in synthetic data generation holds promise for enriching subsurface data analysis and exploration. © 2024 IEEE.

关键词： Generative adversarial networks

来源：评论

学校读者我要写书评

暂无评论

Context-oriented exception handling

引用

International Journal of High Performance Systems Architecture 2009年第1期2卷 16-25页

作者： Dillenburg, Fabiane Cristine Barbosa, Jorge Luis Victoria Porto Alegre Brazil Interdisciplinary Graduate Program in Applied Computing University of Vale do Rio Dos Sinos São Leopoldo Brazil

The growing availability of small, faster computational devices has made mobile computing more popular in our daily life. The development of new applications demands an adoption of programming languages to this new reality, in order to take advantage of new available technologies. In this context, this paper presents a proposal for the specification of context-oriented exception handling features, aiming the development of mobile and ubiquitous applications. These features were implemented in the Holoparadigm mobile development and execution platform. Also, these features were tested using specially crafted applications that triggered exception handling. Copyright © 2009 Inderscience Enterprises Ltd.

关键词： Mobile computing

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：