Low-cost duplication for separable error detection in computer arithmetic

Low-cost arithmetic error detection will be necessary in the future to ensure correct and safe system operation. However, current error detection mechanisms for arithmetic either have high area and energy overheads or are complex and offer incomplete protection against errors. Full duplication is simple, strong, and separable, but often is prohibitively costly. Alternative techniques such as arithmetic error coding require lower hardware and energy overheads than full duplication, but they do so at the expense of high design effort and error coverage holes. The goal of this research is to mitigate the deficiencies of duplication and arithmetic error coding to form an error detection scheme that may be readily employed in future systems. The techniques described by this work use a general duplication technique that employs an alternate number system in the duplicate arithmetic unit. These novel dual modular redundancy organizations are referred to as low-cost duplication, and they provide compelling efficiency and coverage advantages over prior arithmetic error detection mechanisms.Electrical and Computer Engineerin

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This repository item contains an annual report that summarizes activities of the Boston University Photonics Center in the 2010-2011 academic year. The report provides quantitative and descriptive information regarding photonics programs in education, interdisciplinary research, business innovation, and technology development. The Boston University Photonics Center (BUPC) is an interdisciplinary hub for education, research, scholarship, innovation, and technology development associated with practical uses of light.This report summarizes activities of the Boston University Photonics Center (BUPC) during the period July 2010 through June 2011. These activities span the Center’s complementary missions in education, research, technology development, and commercialization. In education, 21BUPC graduate students received Ph.D. diplomas. BUPC faculty taught 20 photonics courses. One graduate student was funded through the Photonics Center Dean’s Fellowship Program. BUPC supported the Research Experiences for Teachers (RET) in Biophotonic Sensors and Systems. In addition to working in the laboratories and heading to Northeastern University for shared seminars, the eight teachers split into two groups to participate in cleanroom activities. The University hosted its annual Science and Engineering Day, where the Photonics Center sponsored the Herbert J. Berman "Future of Light" Prize. Professor Goldberg’s Boston Urban Fellows Project started its sixth year. For more on our education programs, turn to the Education section on page 62. In research, BUPC faculty published journal papers spanning the field of photonics. Eleven patents were awarded to faculty this year for new innovations in the field. A number of awards for outstanding achievement in education and research were presented to BUPC faculty members. These honors include the NSF CAREER Award for Professors Altug, the 2010 R&sD 100 Award for Professor Bifano, and the Dean’s Catalyst Award for Professor Joshi. New external grant funding for the 2010-2010 fiscal year totaled $20.9M. For more information on our research activities, turn to the Research section on page 24. In technology development, this year was the beginning of a transitional period at the Photonics Center as ARL pipeline programs were completed and new research projects were proposed as part of the newly funded National Science Foundation (NSF) Industrial University Cooperative Research Center (I/UCRC) on Biophotonic Sensors and Systems. As researchers finished programs for ARL development, many successfully presented programs at the first annual I/UCRC meeting in April 2011. In the I/UCRC model, industry members of the Center provide the market vision and orient research to solve urgent market needs – in an extension of the successful ARL pipeline model in which the Department of Defense’s urgent needs motivated our research goals. For more information on our technology development pipeline and projects, turn to the Technology Development section on page 49. In commercialization, the business incubator continues to operate at capacity. Its tenants include ten technology companies with a majority having core business interests primarily in photonics and life sciences. It houses several companies founded by current and former BU faculty and students and provides students with an opportunity to assist, observe, and learn from start-up companies. For more information about business incubator activities, turn to the Business Incubation chapter in the Facilities and Equipment section on page 74. In early 2010, the BUPC unveiled a five-year strategic plan as part of the University’s comprehensive review of centers and institutes. The BUPC strategic plan will enhance the Center’s position as an international leader in photonics research. For more information about the strategic plan, turn to the BUPC Strategic Plan section on page 11

1 Secure Multipliers Resilient to Strong Fault- Injection Attacks Using Multilinear Arithmetic Codes

Abstract—Public-key cryptographic devices are vulnerable to fault-injection attacks. As countermeasures, a number of secure architectures based on linear and nonlinear error detecting codes were proposed. Linear codes provide protection only against primitive adversaries which no longer represents practice. On the other hand nonlinear codes provide protection against strong adversaries, but at the price of high area overhead (200–400%). In this paper we propose a novel error detection technique, based on the random selection of linear arithmetic codes for each encryption and the corresponding decryption operation. Under mild assumptions the proposed construction achieves near nonlinear code error detection performance at a lower cost (at most 50 % area overhead) due to the fact that no nonlinear operations are needed for the encoder and decoder

Understanding Quantum Technologies 2022

Understanding Quantum Technologies 2022 is a creative-commons ebook that provides a unique 360 degrees overview of quantum technologies from science and technology to geopolitical and societal issues. It covers quantum physics history, quantum physics 101, gate-based quantum computing, quantum computing engineering (including quantum error corrections and quantum computing energetics), quantum computing hardware (all qubit types, including quantum annealing and quantum simulation paradigms, history, science, research, implementation and vendors), quantum enabling technologies (cryogenics, control electronics, photonics, components fabs, raw materials), quantum computing algorithms, software development tools and use cases, unconventional computing (potential alternatives to quantum and classical computing), quantum telecommunications and cryptography, quantum sensing, quantum technologies around the world, quantum technologies societal impact and even quantum fake sciences. The main audience are computer science engineers, developers and IT specialists as well as quantum scientists and students who want to acquire a global view of how quantum technologies work, and particularly quantum computing. This version is an extensive update to the 2021 edition published in October 2021.Comment: 1132 pages, 920 figures, Letter forma

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

LIPIcs, Volume 251, ITCS 2023, Complete Volume

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The contributions cover a wide range of methodologies and application areas for safety and reliability that contribute to safe societies in a changing world. These methodologies and applications include: - foundations of risk and reliability assessment and management - mathematical methods in reliability and safety - risk assessment - risk management - system reliability - uncertainty analysis - digitalization and big data - prognostics and system health management - occupational safety - accident and incident modeling - maintenance modeling and applications - simulation for safety and reliability analysis - dynamic risk and barrier management - organizational factors and safety culture - human factors and human reliability - resilience engineering - structural reliability - natural hazards - security - economic analysis in risk managemen

LIPIcs, Volume 261, ICALP 2023, Complete Volume

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