130 citations · 206 across the 8 of their papers we have counts for
9 papers
Binary Cyclic Codes that are Locally Repairable
Sreechakra Goparaju, Robert Calderbank
Codes for storage systems aim to minimize the repair locality, which is the number of disks (or nodes) that participate in the repair of a single failed disk. Simultaneously, the c…
Cyclic LRC Codes, binary LRC codes, and upper bounds on the distance of cyclic codes
Itzhak Tamo, Alexander Barg, Sreechakra Goparaju +1
We consider linear cyclic codes with the locality property, or locally recoverable codes (LRC codes). A family of LRC codes that generalize the classical construction of Reed-Solom…
Minimum Storage Regenerating Codes For All Parameters
Sreechakra Goparaju, Arman Fazeli, Alexander Vardy
Regenerating codes for distributed storage have attracted much research interest in the past decade. Such codes trade the bandwidth needed to repair a failed node with the overall…
Cyclic LRC Codes and their Subfield Subcodes
Itzhak Tamo, Alexander Barg, Sreechakra Goparaju +1
We consider linear cyclic codes with the locality property, or locally recoverable codes (LRC codes). A family of LRC codes that generalizes the classical construction of Reed-Solo…
Synchronizing Edits in Distributed Storage Networks
Salim El Rouayheb, Sreechakra Goparaju, Han Mao Kiah +1
We consider the problem of synchronizing data in distributed storage networks under an edit model that includes deletions and insertions. We present two modifications of MDS, regen…
New Codes and Inner Bounds for Exact Repair in Distributed Storage Systems
Sreechakra Goparaju, Salim El Rouayheb, Robert Calderbank
We study the exact-repair tradeoff between storage and repair bandwidth in distributed storage systems (DSS). We give new inner bounds for the tradeoff region and provide code cons…
An Improved Sub-Packetization Bound for Minimum Storage Regenerating Codes
Sreechakra Goparaju, Itzhak Tamo, Robert Calderbank
Distributed storage systems employ codes to provide resilience to failure of multiple storage disks. Specifically, an MDS code stores symbols in disks such that th…
Data Secrecy in Distributed Storage Systems under Exact Repair
Sreechakra Goparaju, Salim El Rouayheb, Robert Calderbank +1
The problem of securing data against eavesdropping in distributed storage systems is studied. The focus is on systems that use linear codes and implement exact repair to recover fr…
A Fast Hierarchical Multilevel Image Segmentation Method using Unbiased Estimators
Sreechakra Goparaju, Jayadev Acharya, Ajoy K. Ray +1
This paper proposes a novel method for segmentation of images by hierarchical multilevel thresholding. The method is global, agglomerative in nature and disregards pixel locations.…