scholarly journals Information Quality Assessment for Data Fusion Systems

Data ◽  
2021 ◽  
Vol 6 (6) ◽  
pp. 60
Author(s):  
Miguel A. Becerra ◽  
Catalina Tobón ◽  
Andrés Eduardo Castro-Ospina ◽  
Diego H. Peluffo-Ordóñez
Keyword(s):  
Data Fusion ◽  
Information Quality ◽  
Engineering Process ◽  
Comprehensive Description ◽  
Research Issues ◽  
Fusion Systems ◽  
General Data ◽  
Fusion Engineering ◽  
And Performance ◽  
Key Aspects

This paper provides a comprehensive description of the current literature on data fusion, with an emphasis on Information Quality (IQ) and performance evaluation. This literature review highlights recent studies that reveal existing gaps, the need to find a synergy between data fusion and IQ, several research issues, and the challenges and pitfalls in this field. First, the main models, frameworks, architectures, algorithms, solutions, problems, and requirements are analyzed. Second, a general data fusion engineering process is presented to show how complex it is to design a framework for a specific application. Third, an IQ approach, as well as the different methodologies and frameworks used to assess IQ in information systems are addressed; in addition, data fusion systems are presented along with their related criteria. Furthermore, information on the context in data fusion systems and its IQ assessment are discussed. Subsequently, the issue of data fusion systems’ performance is reviewed. Finally, some key aspects and concluding remarks are outlined, and some future lines of work are gathered.

Exploring the Role of Agent and Multi-Agent in Data Fusion Systems

2021 ◽  
Author(s):  
Shafiza Ariffin Kashinath ◽  
Salama A. Mostafa ◽  
Aida Mustapha ◽  
David Lim ◽  
Mohd Farhan Md Fudzee ◽  
...  
Keyword(s):  
Data Fusion ◽  
Fusion Systems ◽  
Multi Agent

Experimental Demonstration of Precision Control of a Deployable Optics Structure

2002 ◽  
Vol 124 (3) ◽  
pp. 441-450 ◽  
Author(s):  
R. Scott Erwin ◽  
Karl Schrader ◽  
Ruth L. Moser ◽  
Steven F. Griffin
Keyword(s):  
Control System ◽  
Structural Control ◽  
Level Control ◽  
Precision Control ◽  
Research Issues ◽  
Optical Surfaces ◽  
Point Tracking ◽  
High Bandwidth ◽  
And Performance ◽  
System 1

This paper presents the development, design, and implementation of a precision control system for a large, sparse-aperture space-deployable telescope testbed. Aspects of the testbed and laboratory environment relevant to nanometer-level control and performance objectives are provided. There are four main objectives of the control system: 1) reduction of natural resonances of the supporting structure, 2) rejection of tonal disturbances, 3) tip, tilt, and piston set-point tracking for optical surfaces, and 4) reduction in settling time of optical surfaces after an impulsive slew-type disturbance. The development of a three-input, three-output, high-bandwidth structural control system for the testbed is presented, and experimental data demonstrating that all objectives were attained is provided. The paper concludes with a discussion of the results and a description of research issues remaining to be addressed.

scholarly journals TESSA: design and implementation of a platform for situational sea awareness

2017 ◽  
Vol 17 (2) ◽  
pp. 185-196
Author(s):  
Mario Scalas ◽  
Palmalisa Marra ◽  
Luca Tedesco ◽  
Raffaele Quarta ◽  
Emanuele Cantoro ◽  
...  
Keyword(s):  
Situational Awareness ◽  
Building Blocks ◽  
Ministry Of Education ◽  
End User ◽  
Performance Requirements ◽  
Platform Architecture ◽  
Front End ◽  
Critical Issues ◽  
And Performance ◽  
Key Aspects

Abstract. This article describes the architecture of sea situational awareness (SSA) platform, a major asset within TESSA, an industrial research project funded by the Italian Ministry of Education and Research. The main aim of the platform is to collect, transform and provide forecast and observational data as information suitable for delivery across a variety of channels, like web and mobile; specifically, the ability to produce and provide forecast information suitable for creating SSA-enabled applications has been a critical driving factor when designing and evolving the whole architecture. Thus, starting from functional and performance requirements, the platform architecture is described in terms of its main building blocks and flows among them: front-end components that support end-user applications and map and data analysis components that allow for serving maps and querying data. Focus is directed to key aspects and decisions about the main issues faced, like interoperability, scalability, efficiency and adaptability, but it also considers insights about future works in this and similarly related subjects. Some analysis results are also provided in order to better characterize critical issues and related solutions.

scholarly journals Corporate Governance Role in Improving the Financial Information Quality within the Saudi Electricity Company: دور حوكمة الشركات في تحسين جودة المعلومات المحاسبة في الشركة السعودية للكهرباء

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Arwa Hassan Baabbad
Keyword(s):  
Corporate Governance ◽  
Significant Relationship ◽  
Information Quality ◽  
Survey Methodology ◽  
Governance System ◽  
And Performance ◽  
The Right ◽  
Descriptive Survey ◽  
The Impact

The present study aimed to find out the role of corporate governance in improving the quality of information in the Saudi Electricity Company. The researcher used the descriptive survey methodology. As to achieve the study objectives، the researcher utilized the questionnaire tool، in which the study sample (50) members of SEC distributed into employees، managers and decision makers. The study concluded to many results، among of which are: there is a statistically significant relationship between the availability of corporate governance system and performance improvement of the Saudi Electricity Company، there is a statistically significant relationship between corporate governance and appropriateness in improving the performance of the Saudi Electricity Company، it was also found that there is a statistically significant relationship between corporate governance and optimal disclosure in improving the performance of Saudi Electricity Company. The study also found that there is a statistically significant relationship between corporate governance and the right timing in improving the performance of the Saudi Electricity Company. The study suggested number of recommendations، among of which are: the importance of the shareholding companies to comply with the corporate governance regulations considering the interest of companies and their shareholders and all other parties benefiting from the financial statements، attempting to take advantage of the multiple benefits of corporate governance and expand its application in the various economic units in Saudi Arabia، conduct studies on companies that applies the requirement of the Corporate Governance Regulations، and the impact of the application of corporate governance on the shares of these units to find out the relationship between the quality of accounting information in light of the application of corporate governance and the stock market from another angle، imposing deterrent penalties concerning the Corporate Governance Regulations on companies that did not apply this regulation.

Integration of Postclosure Safety Analysis with Repository Design for the Yucca Mountain Repository through the Selection of Design Control Parameters

2008 ◽  
Vol 1124 ◽  
Author(s):  
Gerald Hans Nieder-Westermann ◽  
Robert H. Spencer ◽  
Robert W Andrews ◽  
Neil Brown
Keyword(s):  
Natural Environment ◽  
Configuration Management ◽  
Ground Surface ◽  
Safety Analysis ◽  
Yucca Mountain ◽  
Operating Conditions ◽  
Control Parameters ◽  
Performance Requirements ◽  
And Performance ◽  
Key Aspects

AbstractThe Yucca Mountain repository combines multiple barriers, both natural and engineered, which work both individually and collectively to limit the movement of water and the potential release and movement of radionuclides to the accessible environment. Engineered structures, systems and components (SSCs) are designed to function in the natural environment utilizing materials chosen to perform their intended functions in order to meet the postclosure performance objectives. Similarly, the features of the natural environment are expected to respond to the presence of the repository through geomechanical, hydrogeologic and geochemical changes. At Yucca Mountain, specific features, both engineered and natural have been identified as requiring design control during repository construction and operations. The integration between design and postclosure safety analysis is facilitated using design control parameters. The term “design control parameters” includes functions and performance requirements allocated to SSCs through the design process, as well as the attributes of SSCs that are developed during design (e.g., dimensions; weights; materials; fabrication and quality-control processes; and operating conditions). These control parameters provide an interface between the design and the analyzed postclosure safety bases, which needs to be maintained through the licensing process. Maintenance of the design is controlled through configuration management and procedural safety controls. The design control parameters serve three key purposes. First, they identify key aspects of the design that serve as the design bases for the designers of the SSCs of the facility. Second, they provide a useful input to the analyses of relevant postclosure features, events and processes (FEPs) and are used to either exclude FEPs from the postclosure safety analysis or as an input to models of included FEPs in the safety analysis. Finally, they provide important controlled interface constraints between the design and safety analyses organizations that are amenable to configuration management. Several examples of such design controls will be presented in this briefing. The first type of design controls relates to the location of the underground facility, including standoffs from faults and the ground surface. The second type of design controls relates to the configuration of the engineered features including the spacing of emplacement driftsand drip shield dimensions and characteristics. A third type of design controls relates to constraints on handling, loading and emplacing waste forms in canisters and waste packages in the emplacement drifts.

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