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- research-articleDecember 2023
Flash-Cosmos: In-Flash Bulk Bitwise Operations Using Inherent Computation Capability of NAND Flash Memory
- Jisung Park,
- Roknoddin Azizi,
- Geraldo F. Oliveira,
- Mohammad Sadrosadati,
- Rakesh Nadig,
- David Novo,
- Juan Gómez-Luna,
- Myungsuk Kim,
- Onur Mutlu
MICRO '22: Proceedings of the 55th Annual IEEE/ACM International Symposium on MicroarchitecturePages 937–955https://doi.org/10.1109/MICRO56248.2022.00069Bulk bitwise operations, i.e., bitwise operations on large bit vectors, are prevalent in a wide range of important application domains, including databases, graph processing, genome analysis, cryptography, and hyper-dimensional computing. In ...
- research-articleJune 2022
PiF: in-flash acceleration for data-intensive applications
HotStorage '22: Proceedings of the 14th ACM Workshop on Hot Topics in Storage and File SystemsPages 106–112https://doi.org/10.1145/3538643.3539742To minimize unnecessary data movements from storage to a host, processing-in-storage (PiS) techniques, which move a compute unit to storage, have been proposed. In this position paper, we propose an extreme version of PiS solutions, called a processing-...
- research-articleApril 2021
Reducing solid-state drive read latency by optimizing read-retry
ASPLOS '21: Proceedings of the 26th ACM International Conference on Architectural Support for Programming Languages and Operating SystemsPages 702–716https://doi.org/10.1145/3445814.34467193D NAND flash memory with advanced multi-level cell techniques provides high storage density, but suffers from significant performance degradation due to a large number of read-retry operations. Although the read-retry mechanism is essential to ensuring ...
- research-articleMarch 2021
RealWear: Improving Performance and Lifetime of SSDs Using a NAND Aging Marker
ACM SIGMETRICS Performance Evaluation Review (SIGMETRICS), Volume 48, Issue 3Pages 120–121https://doi.org/10.1145/3453953.3453980NAND flash memory has revolutionized how we manage data in modern digital systems, significant improvements are needed in flash-based storage systems to meet the requirements of emerging data-intensive applications. In this paper, we address the problem ...
- research-articleMarch 2020
Evanesco: Architectural Support for Efficient Data Sanitization in Modern Flash-Based Storage Systems
ASPLOS '20: Proceedings of the Twenty-Fifth International Conference on Architectural Support for Programming Languages and Operating SystemsPages 1311–1326https://doi.org/10.1145/3373376.3378490As data privacy and security rapidly become key requirements, securely erasing data from a storage system becomes as important as reliably storing data in the system. Unfortunately, in modern flash-based storage systems, it is challenging to ...
- research-articleOctober 2019
Exploiting Process Similarity of 3D Flash Memory for High Performance SSDs
MICRO '52: Proceedings of the 52nd Annual IEEE/ACM International Symposium on MicroarchitecturePages 211–223https://doi.org/10.1145/3352460.33583113D NAND flash memory exhibits two contrasting process characteristics from its manufacturing process. While process variability between different horizontal layers are well known, little has been systematically investigated about strong process ...
- research-articleMay 2018
SARO: A State-Aware Reliability Optimization Technique for High Density NAND Flash Memory
GLSVLSI '18: Proceedings of the 2018 Great Lakes Symposium on VLSIPages 255–260https://doi.org/10.1145/3194554.3194591Recent advances in flash technologies, such as scaling and multi-leveling schemes, have been successful to make flash denser and secure more storage spaces per die. Unfortunately, these technology advances significantly degrade flash's reliability due to ...
- research-articleJune 2017
Improving Performance and Lifetime of Large-Page NAND Storages Using Erase-Free Subpage Programming
DAC '17: Proceedings of the 54th Annual Design Automation Conference 2017Article No.: 24, Pages 1–6https://doi.org/10.1145/3061639.3062264Recent NAND flash devices have large page sizes. Although large pages are useful in increasing the flash capacity, they can degrade both the performance and lifetime of flash storage systems when small writes are dominant. We propose a new NAND ...
- research-articleFebruary 2012
A tuning method for the architecture of neural network models incorporating GAM and GA as applied to bankruptcy prediction
Expert Systems with Applications: An International Journal (EXWA), Volume 39, Issue 3Pages 3650–3658https://doi.org/10.1016/j.eswa.2011.09.056Highlights A noble approach to fine-tuning the architecture of NN (neural networks) is proposed. The newly tuned neural networks model significantly outperforms other competing models. The method reflects the nonlinear characteristics of the input ...
- posterMarch 2010
Application of unexpectedness to the behavioral design of an entertainment robot
HRI '10: Proceedings of the 5th ACM/IEEE international conference on Human-robot interactionPages 119–120The objectives of this study are to apply unexpectedness to the behavioral design of an entertainment robot and to evaluate the impression and satisfaction provided by the robot. Participants(N=44) observed four robot behaviors, which are distinguished ...
- posterMarch 2010
Effects of intergroup relations on people's acceptance of robots
HRI '10: Proceedings of the 5th ACM/IEEE international conference on Human-robot interactionPages 107–108The objective of this study is to examine the effect of intergroup relations on robots through comparison with other objects. In an experiment, participants watched eight stimuli drawn from four types of objects (people vs. robots vs. animals vs. ...
- abstractMarch 2009
Focus group interview for designing a growing robot
HRI '09: Proceedings of the 4th ACM/IEEE international conference on Human robot interactionPages 305–306https://doi.org/10.1145/1514095.1514188This study describes preliminary research for designing a growing robot. To explore the interaction between a human and an object that changes physically through its growth, focus group interviews were conducted with participants who kept pets, plants, ...
- articleJanuary 2008
Consistent estimation in regression models for the drift function in some continuous time models
Computational Statistics & Data Analysis (CSDA), Volume 52, Issue 5Pages 2682–2691https://doi.org/10.1016/j.csda.2007.09.017A regression-based consistent estimation method for the drift function in some continuous time models is suggested, and its limiting distribution is derived. The accuracy of the new estimation method is examined via some finite sample Monte Carlo ...