94 research outputs found
Advances in Robotics, Automation and Control
The book presents an excellent overview of the recent developments in the different areas of Robotics, Automation and Control. Through its 24 chapters, this book presents topics related to control and robot design; it also introduces new mathematical tools and techniques devoted to improve the system modeling and control. An important point is the use of rational agents and heuristic techniques to cope with the computational complexity required for controlling complex systems. Through this book, we also find navigation and vision algorithms, automatic handwritten comprehension and speech recognition systems that will be included in the next generation of productive systems developed by man
Advanced Process Monitoring for Industry 4.0
This book reports recent advances on Process Monitoring (PM) to cope with the many challenges raised by the new production systems, sensors and “extreme data” conditions that emerged with Industry 4.0. Concepts such as digital-twins and deep learning are brought to the PM arena, pushing forward the capabilities of existing methodologies to handle more complex scenarios. The evolution of classical paradigms such as Latent Variable modeling, Six Sigma and FMEA are also covered. Applications span a wide range of domains such as microelectronics, semiconductors, chemicals, materials, agriculture, as well as the monitoring of rotating equipment, combustion systems and membrane separation processes
Sensors and Systems for Indoor Positioning
This reprint is a reprint of the articles that appeared in Sensors' (MDPI) Special Issue on “Sensors and Systems for Indoor Positioning". The published original contributions focused on systems and technologies to enable indoor applications
Advances in Bioengineering
The technological approach and the high level of innovation make bioengineering extremely dynamic and this forces researchers to continuous updating. It involves the publication of the results of the latest scientific research. This book covers a wide range of aspects and issues related to advances in bioengineering research with a particular focus on innovative technologies and applications. The book consists of 13 scientific contributions divided in four sections: Materials Science; Biosensors. Electronics and Telemetry; Light Therapy; Computing and Analysis Techniques
Intelligent Sensor Networks
In the last decade, wireless or wired sensor networks have attracted much attention. However, most designs target general sensor network issues including protocol stack (routing, MAC, etc.) and security issues. This book focuses on the close integration of sensing, networking, and smart signal processing via machine learning. Based on their world-class research, the authors present the fundamentals of intelligent sensor networks. They cover sensing and sampling, distributed signal processing, and intelligent signal learning. In addition, they present cutting-edge research results from leading experts
Collision Avoidance on Unmanned Aerial Vehicles using Deep Neural Networks
Unmanned Aerial Vehicles (UAVs), although hardly a new technology, have recently
gained a prominent role in many industries, being widely used not only among enthusiastic
consumers but also in high demanding professional situations, and will have a
massive societal impact over the coming years. However, the operation of UAVs is full
of serious safety risks, such as collisions with dynamic obstacles (birds, other UAVs, or
randomly thrown objects). These collision scenarios are complex to analyze in real-time,
sometimes being computationally impossible to solve with existing State of the Art (SoA)
algorithms, making the use of UAVs an operational hazard and therefore significantly reducing
their commercial applicability in urban environments. In this work, a conceptual
framework for both stand-alone and swarm (networked) UAVs is introduced, focusing on
the architectural requirements of the collision avoidance subsystem to achieve acceptable
levels of safety and reliability. First, the SoA principles for collision avoidance against
stationary objects are reviewed. Afterward, a novel image processing approach that uses
deep learning and optical flow is presented. This approach is capable of detecting and
generating escape trajectories against potential collisions with dynamic objects. Finally,
novel models and algorithms combinations were tested, providing a new approach for
the collision avoidance of UAVs using Deep Neural Networks. The feasibility of the proposed
approach was demonstrated through experimental tests using a UAV, created from
scratch using the framework developed.Os veículos aéreos não tripulados (VANTs), embora dificilmente considerados uma
nova tecnologia, ganharam recentemente um papel de destaque em muitas indústrias,
sendo amplamente utilizados não apenas por amadores, mas também em situações profissionais
de alta exigência, sendo expectável um impacto social massivo nos próximos
anos. No entanto, a operação de VANTs está repleta de sérios riscos de segurança, como
colisões com obstáculos dinâmicos (pássaros, outros VANTs ou objetos arremessados).
Estes cenários de colisão são complexos para analisar em tempo real, às vezes sendo computacionalmente
impossível de resolver com os algoritmos existentes, tornando o uso de
VANTs um risco operacional e, portanto, reduzindo significativamente a sua aplicabilidade
comercial em ambientes citadinos. Neste trabalho, uma arquitectura conceptual
para VANTs autônomos e em rede é apresentada, com foco nos requisitos arquitetônicos
do subsistema de prevenção de colisão para atingir níveis aceitáveis de segurança e confiabilidade.
Os estudos presentes na literatura para prevenção de colisão contra objectos
estacionários são revistos e uma nova abordagem é descrita. Esta tecnica usa técnicas
de aprendizagem profunda e processamento de imagem, para realizar a prevenção de
colisões em tempo real com objetos móveis. Por fim, novos modelos e combinações de algoritmos
são propostos, fornecendo uma nova abordagem para evitar colisões de VANTs
usando Redes Neurais Profundas. A viabilidade da abordagem foi demonstrada através
de testes experimentais utilizando um VANT, desenvolvido a partir da arquitectura
apresentada
Accountable, Explainable Artificial Intelligence Incorporation Framework for a Real-Time Affective State Assessment Module
The rapid growth of artificial intelligence (AI) and machine learning (ML) solutions has seen it adopted across various industries. However, the concern of ‘black-box’ approaches has led to an increase in the demand for high accuracy, transparency, accountability, and explainability in AI/ML approaches. This work contributes through an accountable, explainable AI (AXAI) framework for delineating and assessing AI systems. This framework has been incorporated into the development of a real-time, multimodal affective state assessment system
Enterprise resource planning (ERP) and organizational performance moderated by organizational and technological factors
Organizational performance (OP) and the enterprise resource planning system (ERP) are two of the most significant studies to provide benefits to the organizations. There are different investigations on the ERP and OP in private and public organizations in developed and developing countries. The current study studied the moderating effect organization factors and technological factors on the relationship between ERP and OP. Notably, as only a few studies have addressed the implication of ERP on OP in Arab countries such as in the Libyan context, it needs more investigation. There is a controversy between the effects of TF and OF that affect the ERP system and OP. The main objective was to explore to which extent the Libyan public organizations are looking to improve their performance through the ERP system. The quantitative method was adopted. Out of 242 public organizations, 149 organizations were selected as the study sample through the random sampling technique. 119 completed questionnaires were run for further analysis. The SPSS software, and PLS-SEM were employed to test the hypotheses. The results revealed that the relationship between the ERP system and OP was strongly significant. Also, the ERP system and OP were influenced by the interaction of the moderating effect of TF and OF. The empirical results add a new academic contribution to the body of knowledge. Hence, the obtained outcome is hoped to provide benefits to the public sector organizations in Libya
Big data : evolution, components, challenges and opportunities
Thesis (S.M. in Management of Technology)--Massachusetts Institute of Technology, Sloan School of Management, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (p. 122-126).This work reviews the evolution and current state of the "Big Data" industry, and to understand the key components, challenges and opportunities of Big Data and analytics face in today business environment, this is analyzed in seven dimensions: Historical Background. The historical evolution and milestones in data management that eventually led to what we know today as Big Data. What is Big Data? Reviews the key concepts around big data, including Volume, Variety, and Velocity, and the key components of successful Big Data initiatives. Data Collection. The most important issue to consider before any big data initiative is to identify the "Business Case" or "Question" we want to answer, no "big data" initiative should be launched without clearly identify the business problem we want to tackle. Data collection strategy has to be closely defined taking in consideration the business case in question. Data Analysis. This section explores the techniques available to create value by aggregate, manipulate, analyze and visualize big data. Including predictive modeling, data mining, and statistical inference models. Data Visualization. Visualization of data is one of the most powerful and appealing techniques for data exploration. This section explores the main techniques for data visualization so that the characteristics of the data and the relationships among data items can be reported and analyzed. Impact. This section explores the potential impact and implications of big data in value creation in five domains: Insurance, Healthcare, Politics, Education and Marketing. Human Capital. This chapter explores the way big data will influence business processes and human capital, explore the role of the "Data Scientist" and analyze a potential shortage of data experts in coming years. Infrastructure and Solutions. This chapter explores the current professional services and infrastructure offering and how this industry and makes a review of vendors available in different specialties around big data.by Alejandro Zarate Santovena.S.M.in Management of Technolog
Doctor of Philosophy
dissertationIn order to ensure high production yield of semiconductor devices, it is desirable to characterize intermediate progress towards the final product by using metrology tools to acquire relevant measurements after each sequential processing step. The metrology data are commonly used in feedback and feed-forward loops of Run-to-Run (R2R) controllers to improve process capability and optimize recipes from lot-to-lot or batch-to-batch. In this dissertation, we focus on two related issues. First, we propose a novel non-threaded R2R controller that utilizes all available metrology measurements, even when the data were acquired during prior runs that differed in their contexts from the current fabrication thread. The developed controller is the first known implementation of a non-threaded R2R control strategy that was successfully deployed in the high-volume production semiconductor fab. Its introduction improved the process capability by 8% compared with the traditional threaded R2R control and significantly reduced out of control (OOC) events at one of the most critical steps in NAND memory manufacturing. The second contribution demonstrates the value of developing virtual metrology (VM) estimators using the insight gained from multiphysics models. Unlike the traditional statistical regression techniques, which lead to linear models that depend on a linear combination of the available measurements, we develop VM models, the structure of which and the functional interdependence between their input and output variables are determined from the insight provided by the multiphysics describing the operation of the processing step for which the VM system is being developed. We demonstrate this approach for three different processes, and describe the superior performance of the developed VM systems after their first-of-a-kind deployment in a high-volume semiconductor manufacturing environment
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