Search Results for author: Ofer Shayevitz

Found 8 papers, 0 papers with code

Statistical Inference with Limited Memory: A Survey

no code implementations23 Dec 2023 Tomer Berg, Or Ordentlich, Ofer Shayevitz

The problem of statistical inference in its various forms has been the subject of decades-long extensive research.

Batches Stabilize the Minimum Norm Risk in High Dimensional Overparameterized Linear Regression

no code implementations14 Jun 2023 Shahar Stein Ioushua, Inbar Hasidim, Ofer Shayevitz, Meir Feder

Learning algorithms that divide the data into batches are prevalent in many machine-learning applications, typically offering useful trade-offs between computational efficiency and performance.

Computational Efficiency regression

Planted Bipartite Graph Detection

no code implementations7 Feb 2023 Asaf Rotenberg, Wasim Huleihel, Ofer Shayevitz

To provide an evidence for this statistical computational gap, we prove computational lower bounds based on the low-degree conjecture, and show that the class of low-degree polynomials algorithms fail in the conjecturally hard region.

Learning User Preferences in Non-Stationary Environments

no code implementations29 Jan 2021 Wasim Huleihel, Soumyabrata Pal, Ofer Shayevitz

One of the main surprising observations in our experiments is the fact our algorithm outperforms other static algorithms even when preferences do not change over time.

Collaborative Filtering Recommendation Systems

Simple Modulo can Significantly Outperform Deep Learning-based Deepcode

no code implementations4 Aug 2020 Assaf Ben-Yishai, Ofer Shayevitz

This Modulo-SK scheme has been omitted from the performance comparisons made in the Deepcode paper, due to its use of common randomness (dither), and in a later version since it was incorrectly interpreted as a variable-length coding scheme.

Sharp Thresholds of the Information Cascade Fragility Under a Mismatched Model

no code implementations7 Jun 2020 Wasim Huleihel, Ofer Shayevitz

We analyze a sequential decision making model in which decision makers (or, players) take their decisions based on their own private information as well as the actions of previous decision makers.

Decision Making

Communication Complexity of Estimating Correlations

no code implementations25 Jan 2019 Uri Hadar, Jingbo Liu, Yury Polyanskiy, Ofer Shayevitz

Our results also imply an $\Omega(n)$ lower bound on the information complexity of the Gap-Hamming problem, for which we show a direct information-theoretic proof.

Distributed Estimation of Gaussian Correlations

no code implementations31 May 2018 Uri Hadar, Ofer Shayevitz

We study a distributed estimation problem in which two remotely located parties, Alice and Bob, observe an unlimited number of i. i. d.

2k

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