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In the present paper, a modification of the Index-less Indexed Flash Codes (ILIFC) for flash memory storage system is presented. Although the ILIFC proposed by Mahdavifar et al. has excellent worst case performance, the ILIFC can be further…

Information Theory · Computer Science 2011-02-18 Riki Suzuki , Tadashi Wadayama

In this work, we propose a novel coding scheme which based on the characteristics of NAND flash cells, generates codewords that reduce the energy consumption and improve the reliability of solid-state drives. This novel coding scheme,…

Information Theory · Computer Science 2019-07-08 Armin Ahmadzadeh , Omid Hajihassani , Pooria Taheri , Seyed Hossein Khasteh

Flash memory is a non-volatile computer memory comprised of blocks of cells, wherein each cell can take on q different values or levels. While increasing the cell level is easy, reducing the level of a cell can be accomplished only by…

Information Theory · Computer Science 2009-05-12 Hessam Mahdavifar , Paul H. Siegel , Alexander Vardy , Jack K. Wolf , Eitan Yaakobi

Flash-based disk caches, for example Bcache and Flashcache, has gained tremendous popularity in industry in the last decade because of its low energy consumption, non-volatile nature and high I/O speed. But these cache systems have a worse…

Operating Systems · Computer Science 2023-11-16 Chaos Dong , Fang Wang , Jianshun Zhang

Flash memories intended for SSD and mobile applications need to provide high random I/O performance. This requires using efficient schemes for reading small chunks of data (e.g. 0.5KB - 4KB) from random addresses. Furthermore, in order to…

Information Theory · Computer Science 2012-03-01 Eran Sharon , Idan Alrod

The most important challenge in the scaling down of flash memory is its increased inter-cell interference (ICI). If side information about ICI is known to the encoder, the flash memory channel can be viewed as similar to Costa's "writing on…

Information Theory · Computer Science 2015-02-11 Yongjune Kim , B. V. K. Vijaya Kumar

In this work, we study a recently proposed direct shaping code for flash memory. This rate-1 code is designed to reduce the wear for SLC (one bit per cell) flash by minimizing the average fraction of programmed cells when storing structured…

Information Theory · Computer Science 2020-07-14 Yi Liu , Paul H. Siegel

This paper presents an inverted-file k-means clustering algorithm (IVF) suitable for a large-scale sparse data set with potentially numerous classes. Given such a data set, IVF efficiently works at high-speed and with low memory…

Machine Learning · Statistics 2020-02-24 Kazuo Aoyama , Kazumi Saito , Tetsuo Ikeda

Industry Foundation Classes (IFC) files are commonly used for data exchange of Building Information Models (BIMs). Due to the equivalent transformations in the graph structure of IFC data, it is a challenge to perform version comparison and…

Databases · Computer Science 2023-12-27 Han Liu , Ge Gao , Ming Gu

The index coding problem is a fundamental transmission problem arising in content distribution and wireless networks. Traditional approach to solve this problem is to find heuristic/ approximation minimum clique partition solution on an…

Networking and Internet Architecture · Computer Science 2016-11-15 Jalaluddin Qureshi

Recently, 3D SSDs are widely adopted in PCs, data centers, and cloud storage systems. To increase capacity, high bit-density cells, such as Triple-Level Cell (TLC), are utilized within 3D SSDs. However, due to the inferior performance of…

Hardware Architecture · Computer Science 2024-10-15 Xufeng Yang , Zhengjian Cong , Congming Gao

Flash memory is a non-volatile computer memory comprising blocks of cells, wherein each cell can take on q different values or levels. While increasing the cell level is easy, reducing the level of a cell can be accomplished only by erasing…

Information Theory · Computer Science 2012-10-30 Eitan Yaakobi , Hessam Mahdavifar , Paul H. Siegel , Alexander Vardy , Jack K. Wolf

This paper investigates the application of low-density parity-check (LDPC) codes to Flash memories. Multiple cell reads with distinct word-line voltages provide limited-precision soft information for the LDPC decoder. The values of the…

Information Theory · Computer Science 2012-10-02 Jiadong Wang , Guiqiang Dong , Thomas Courtade , Hari Shankar , Tong Zhang , Richard Wesel

A rewriting code construction for flash memories based upon lattices is described. The values stored in flash cells correspond to lattice points. This construction encodes information to lattice points in such a way that data can be written…

Information Theory · Computer Science 2010-07-13 Brian M. Kurkoski

A promising research area that has recently emerged, is on how to use index coding to improve the communication efficiency in distributed computing systems, especially for data shuffling in iterative computations. In this paper, we posit…

Information Theory · Computer Science 2018-05-04 Linqi Song , Christina Fragouli , Tianchu Zhao

Iterative learning control (ILC) is capable of improving the tracking performance of repetitive control systems by utilizing data from past iterations. The aim of this paper is to achieve both task flexibility, which is often achieved by…

Systems and Control · Electrical Eng. & Systems 2024-03-05 Max van Haren , Kentaro Tsurumoto , Masahiro Mae , Lennart Blanken , Wataru Ohnishi , Tom Oomen

Multiple reads of the same Flash memory cell with distinct word-line voltages provide enhanced precision for LDPC decoding. In this paper, the word-line voltages are optimized by maximizing the mutual information (MI) of the quantized…

Information Theory · Computer Science 2014-02-20 Jiadong Wang , Kasra Vakilinia , Tsung-Yi Chen , Thomas Courtade , Guiqiang Dong , Tong Zhang , Hari Shankar , Richard Wesel

Iterative learning control (ILC) is a control strategy for repetitive tasks wherein information from previous runs is leveraged to improve future performance. Optimization-based ILC (OB-ILC) is a powerful design framework for constrained…

Systems and Control · Electrical Eng. & Systems 2022-05-27 Dominic Liao-McPherson , Efe C. Balta , Alisa Rupenyan , John Lygeros

In-context Learning (ICL) is an emerging few-shot learning paradigm on Language Models (LMs) with inner mechanisms un-explored. There are already existing works describing the inner processing of ICL, while they struggle to capture all the…

Computation and Language · Computer Science 2025-02-21 Hakaze Cho , Mariko Kato , Yoshihiro Sakai , Naoya Inoue

Many important security problems in JavaScript, such as browser extension security, untrusted JavaScript libraries and safe integration of mutually distrustful websites (mash-ups), may be effectively addressed using an efficient…

Programming Languages · Computer Science 2015-01-20 Stefan Heule , Deian Stefan , Edward Z. Yang , John C. Mitchell , Alejandro Russo
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