All reports by Author Noga Ron-Zewi:

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TR20-133
| 8th September 2020
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Noga Ron-Zewi, Ronen Shaltiel, Nithin Varma#### Query complexity lower bounds for local list-decoding and hard-core predicates (even for small rate and huge lists)

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TR20-072
| 5th May 2020
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Yotam Dikstein, Irit Dinur, Prahladh Harsha, Noga Ron-Zewi#### Locally testable codes via high-dimensional expanders

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TR19-127
| 19th September 2019
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Noga Ron-Zewi, Ron Rothblum#### Local Proofs Approaching the Witness Length

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TR19-122
| 13th September 2019
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Jonathan Mosheiff, Nicolas Resch, Noga Ron-Zewi, Shashwat Silas, Mary Wootters#### LDPC Codes Achieve List-Decoding Capacity

Revisions: 2

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TR18-195
| 18th November 2018
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Sofya Raskhodnikova, Noga Ron-Zewi, Nithin Varma#### Erasures versus Errors in Local Decoding and Property Testing

Noga Ron-Zewi, Ronen Shaltiel, Nithin Varma

A binary code $\text{Enc}:\{0,1\}^k \rightarrow \{0,1\}^n$ is $(\frac{1}{2}-\varepsilon,L)$-list decodable if for every $w \in \{0,1\}^n$, there exists a set $\text{List}(w)$ of size at most $L$, containing all messages $m \in \{0,1\}^k$ such that the relative Hamming distance between $\text{Enc}(m)$ and $w$ is at most $\frac{1}{2}-\varepsilon$.

A $q$-query local list-decoder is ...
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Yotam Dikstein, Irit Dinur, Prahladh Harsha, Noga Ron-Zewi

Locally testable codes (LTC) are error-correcting codes that have a local tester which can distinguish valid codewords from words that are far from all codewords, by probing a given word only at a very small (sublinear, typically constant) number of locations. Such codes form the combinatorial backbone of PCPs. ...
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Noga Ron-Zewi, Ron Rothblum

Interactive oracle proofs (IOPs) are a hybrid between interactive proofs and PCPs. In an IOP the prover is allowed to interact with a verifier (like in an interactive proof) by sending relatively long messages to the verifier, who in turn is only allowed to query a few of the bits ... more >>>

Jonathan Mosheiff, Nicolas Resch, Noga Ron-Zewi, Shashwat Silas, Mary Wootters

We show that Gallager's ensemble of Low-Density Parity Check (LDPC) codes achieve list-decoding capacity. These are the first graph-based codes shown to have this property. Previously, the only codes known to achieve list-decoding capacity were completely random codes, random linear codes, and codes constructed by algebraic (rather than combinatorial) techniques. ... more >>>

Sofya Raskhodnikova, Noga Ron-Zewi, Nithin Varma

We initiate the study of the role of erasures in local decoding and use our understanding to prove a separation between erasure-resilient and tolerant property testing. Local decoding in the presence of errors has been extensively studied, but has not been considered explicitly in the presence of erasures.

Motivated by ... more >>>