22 citations · 164 across the 31 of their papers we have counts for
32 papers
Current Should Not Sneak: Constrained Codes for Reliable Memristor Crossbar Arrays
Selahattin Kaan Kırgeç, Yunus Alp Bıyıkoğlu, Ahmed Hareedy
The approach of squeezing more transistors in the same area in order to speed up computing is no longer effective. Currently, researchers and engineers are searching for novel solu…
ViGoR-Bench: How Far Are Visual Generative Models From Zero-Shot Visual Reasoners?
Haonan Han, Jiancheng Huang, Xiaopeng Sun +7
Beneath the stunning visual fidelity of modern AIGC models lies a "logical desert", where systems fail tasks that require physical, causal, or complex spatial reasoning. Current ev…
Learning to Reconfigure: Using Device Status to Select the Right Constrained Coding Scheme
Doğukan Özbayrak, Ahmed Hareedy
In the age of data revolution, a modern storage~or transmission system typically requires different levels of protection. For example, the coding technique used to fortify data in…
Adapt or Regress: Rate-Memory-Compatible Spatially-Coupled Codes
Bade Aksoy, Doğukan Özbayrak, Ahmed Hareedy
Spatially-coupled (SC) codes are a class of low-density parity-check (LDPC) codes that have excellent performance thanks to the degrees of freedom they offer. An SC code is designe…
A Markov Chain Monte Carlo Method for Efficient Finite-Length LDPC Code Design
Ata Tanrıkulu, Mete Yıldırım, Ahmed Hareedy
Low-density parity-check (LDPC) codes are among the most prominent error-correction schemes. They find application to fortify various modern storage, communication, and computing s…
LOCO Codes Can Correct as Well: Error-Correction Constrained Coding for DNA Data Storage
Canberk İrimağzı, Ahmed Hareedy
As a medium for cold data storage, DNA stands out as it promises significant gains in storage capacity and lifetime. However, it comes with its own data processing challenges to ov…
Probabilistic Design of Multi-Dimensional Spatially-Coupled Codes
Canberk İrimağzı, Ata Tanrıkulu, Ahmed Hareedy
Because of their excellent asymptotic and finite-length performance, spatially-coupled (SC) codes are a class of low-density parity-check codes that is gaining increasing attention…
Protecting the Future of Information: LOCO Coding With Error Detection for DNA Data Storage
Canberk İrimağzı, Yusuf Uslan, Ahmed Hareedy
DNA strands serve as a storage medium for -ary data over the alphabet . DNA data storage promises formidable information density, long-term durability, and ease of…
Eliminating Media Noise While Preserving Storage Capacity: Reconfigurable Constrained Codes for Two-Dimensional Magnetic Recording
Iven Guzel, Doğukan Özbayrak, Robert Calderbank +1
Magnetic recording devices are still competitive in the storage density race thanks to new technologies such as two-dimensional magnetic recording (TDMR). Error-prone patterns wher…
LDPC Decoders Prefer More Reliable Parity Bits: Unequal Data Protection Over BSC
Beyza Dabak, Ece Tiryaki, Robert Calderbank +1
Low-density parity-check (LDPC) codes are specified by graphs, and are the error correction technique of choice in many communications and data storage contexts. Message passing de…
Efficient Constrained Codes That Enable Page Separation in Modern Flash Memories
Ahmed Hareedy, Simeng Zheng, Paul Siegel +1
The pivotal storage density win achieved by solid-state devices over magnetic devices recently is a result of multiple innovations in physics, architecture, and signal processing.…
Read-and-Run Constrained Coding for Modern Flash Devices
Ahmed Hareedy, Simeng Zheng, Paul Siegel +1
The pivotal storage density win achieved by solid-state devices over magnetic devices in 2015 is a result of multiple innovations in physics, architecture, and signal processing. O…
Breaking the Computational Bottleneck: Design of Near-Optimal High-Memory Spatially-Coupled Codes
Siyi Yang, Ahmed Hareedy, Robert Calderbank +1
Spatially-coupled (SC) codes, known for their threshold saturation phenomenon and low-latency windowed decoding algorithms, are ideal for streaming applications and data storage sy…
Hierarchical Hybrid Error Correction for Time-Sensitive Devices at the Edge
Siyi Yang, Ahmed Hareedy, Robert Calderbank +1
Computational storage, known as a solution to significantly reduce the latency by moving data-processing down to the data storage, has received wide attention because of its potent…
GRADE-AO: Towards Near-Optimal Spatially-Coupled Codes With High Memories
Siyi Yang, Ahmed Hareedy, Shyam Venkatasubramanian +2
Spatially-coupled (SC) codes, known for their threshold saturation phenomenon and low-latency windowed decoding algorithms, are ideal for streaming applications. They also find app…
Unequal Error Protection Achieves Threshold Gains on BEC and BSC via Higher Fidelity Messages
Beyza Dabak, Ahmed Hareedy, Alexei Ashikhmin +1
Because of their capacity-approaching performance, graph-based codes have a wide range of applications, including communications and storage. In these codes, unequal error protecti…
The Secret Arithmetic of Patterns: A General Method for Designing Constrained Codes Based on Lexicographic Indexing
Ahmed Hareedy, Beyza Dabak, Robert Calderbank
Constrained codes are used to prevent errors from occurring in various data storage and data transmission systems. They can help in increasing the storage density of magnetic stora…
Power Spectra of Constrained Codes with Level-Based Signaling: Overcoming Finite-Length Challenges
Jessica Centers, Xinyu Tan, Ahmed Hareedy +1
Constrained codes are used to eliminate error-prone patterns in various practical systems. Recently, we introduced efficient binary symmetric lexicographically-ordered constrained…
Hierarchical Coding for Cloud Storage: Topology-Adaptivity, Scalability, and Flexibility
Siyi Yang, Ahmed Hareedy, Robert Calderbank +1
In order to accommodate the ever-growing data from various, possibly independent, sources and the dynamic nature of data usage rates in practical applications, modern cloud data st…
Non-Binary Constrained Codes for Two-Dimensional Magnetic Recording
Beyza Dabak, Ahmed Hareedy, Robert Calderbank
The two-dimensional magnetic recording (TDMR) technology promises storage densities of terabits per square inch. However, when tracks are squeezed together, a bit stored in th…
Managing Device Lifecycle: Reconfigurable Constrained Codes for M/T/Q/P-LC Flash Memories
Ahmed Hareedy, Beyza Dabak, Robert Calderbank
Flash memory devices are winning the competition for storage density against magnetic recording devices. This outcome results from advances in physics that allow storage of more th…
Topology-Aware Cooperative Data Protection in Blockchain-Based Decentralized Storage Networks
Siyi Yang, Ahmed Hareedy, Robert Calderbank +1
From currency to cloud storage systems, the continuous rise of the blockchain technology is moving various information systems towards decentralization. Blockchain-based decentrali…
Asymmetric LOCO Codes: Constrained Codes for Flash Memories
Ahmed Hareedy, Robert Calderbank
In data storage and data transmission, certain patterns are more likely to be subject to error when written (transmitted) onto the media. In magnetic recording systems with binary…
Hierarchical Coding to Enable Scalability and Flexibility in Heterogeneous Cloud Storage
Siyi Yang, Ahmed Hareedy, Robert Calderbank +1
In order to accommodate the ever-growing data from various, possibly independent, sources and the dynamic nature of data usage rates in practical applications, modern cloud data st…