Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Error resilience"”.
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Compiler-Directed Error Resilience for Reliable Computing
Error resilience has become as important as power and performance in modern computing architecture. There are various sources of errors that can paralyze real-world computing systems. Of particular interest to this dissertation are single-event errors. They can be the results of energetic particle …
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Exploiting application level error resilience via deferred execution
Many programs exhibit application level error resilience which allows certain subcomputations to execute in an imprecise, yet energy efficient manner, potentially yielding significant overall energy savings without sacrificing end- to-end quality. In this thesis we identify one fundamental problem …
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Towards Error-Resilience in Quantum Simulation of Lattice Gauge Theories
… in physics will require to carefully treat errors present in quantum hardware. To this end, we address and mitigate noise via several methods including symmetry verification, Floquet calibration, echo sequences, algorithmic qubit and coupler selection, and assignment averaging. In a parallel …
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The Optimal Error Resilience of Interactive Communication Over Binary Channels
… compute f(x,y). The goal is to do this in an error-resilient way, such that even given some fraction of adversarial corruptions to the protocol, both parties still learn f(x,y). We study the optimal error resilience of such a protocol in the face of adversarial bit flips or erasures. While the …
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Recovery-driven design: Exploiting error resilience in design of energy-efficient processors
… optimizes a processor module for a target timing error rate instead of correct operation. The target error rate is chosen based on how many errors can be gainfully tolerated by a hardware or software error resilience mechanism. We show that significant power bene ts are possible from a …
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Optimal power/performance pipelining for error resilient processors
… constraints of a processor to a point where errors are possible but rare, and employing an error recovery mechanism to ensure correct functionality. This allows significant energy efficiency gains with a small recovery overhead. Previous work on timing speculation has either explored the …
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Algorithmic approaches to enhancing and exploiting application-level error tolerance
… and algorithm characteristics (e.g. natural error resilience, spatial and temporal reuse, and fault containment) to build more efficient robust systems. This dissertation research describes algorithmic approaches that leverage application and algorithm-awareness for building such systems. …
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Enabling Approximate Storage through Lossy Media Data Compression
… many RMS applications demonstrate inherent error resilience, a property that allows them to produce acceptable outputs even when data used in computation contain errors. Approximate storage techniques across circuits, architectures, and algorithms exploit this property to improve the energy …
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Adaptive multiple description mode selection for error resilient video communications
… tradeoff between compression efficiency and error resilience. How effectively each method achieves this tradeoff depends on network conditions as well as on the characteristics of the video itself. This thesis proposes an adaptive MD coding approach that adapts to changing conditions through …
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Error Resilient Video Coding Using Bitstream Syntax And Iterative Microscopy Image Segmentation
… making compressed bitstreams vulnerable to errors. We propose several adaptive spatial-temporal error concealment approaches for subsampling-based multiple description video coding. These adaptive methods are based on motion and mode information extracted from the H.26x video bitstreams. We …
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Programmable stochastic processors
… i.e., computing that exploits application error tolerance to enable careful relaxation of correctness guarantees provided by hardware in order to reduce power. This dissertation explores the feasibility, challenges, and potential benefits of stochastic computing in the context of …
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High performance and error resilient probabilistic inference system for machine learning
… system for QVGA stereo videos. Next, we consider error resilience of the message passing hardware for energy efficient hardware implementation. Modern nanoscale CMOS process technologies suffer in reliability caused by process, temperature and voltage variations. Conventional approaches to deal …
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Combined forward error correction and error concealment for digital video transmission
Forward Error Correction (FEC) coding has been widely used in digital communications to improve the transmission performance over noisy channels. Based on the introduced redundancy and encoding structure, a maximum likelihood (ML) decoding scheme can be used to correct significant part of …
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Efficient delivery of scalable media streaming over lossy networks
… restricted shared bandwidth and relatively high error loss rates, thus presenting a challenge for the efficient delivery of high quality video. Additionally, mobile devices can support/demand a range of video resolutions and qualities. This demand for mobile streaming highlights the need for …
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Analysis and optimization of digital circuit dynamic behavior
… the guardband and complementing a circuit with error detection and correction mechanisms. BTWC deliberately allows timing errors for rare cases and rectifies them with error correction mechanisms. This new design methodology can operate a circuit more efficiently than the traditional way. From …
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A Study on Unintentional and Intentional Sources of Variability in Nanometer Scale Digital Circuits
… are tremendously susceptible to inadvertent errors, and circuit modifications required to ensure error resilience incur significant power overheads that are growing alarmingly as transistor dimensions shrink. Technology scaling has thus caused a resounding effect on the performance of digital …
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Wireless speech and audio communications
… Channel Coding (JSCC) schemes, namely Unequal Error Protection (UEP) aided turbo transceivers as well as Iterative Source and Channel Decoding (ISCD) exploiting the residual redundancy inherent in the source encoded parameters.<br/>More specifically, in Chapter 2, two different UEP JSCC …