Search Results for author: Yury Makarychev

Found 13 papers, 1 papers with code

Fair Representation Clustering with Several Protected Classes

no code implementations3 Feb 2022 Zhen Dai, Yury Makarychev, Ali Vakilian

For this special case, we present an $O(\log k)$-approximation algorithm that runs in $(kf)^{O(\ell)}\log n + poly(n)$ time.

Clustering Fairness

Approximating Fair Clustering with Cascaded Norm Objectives

no code implementations8 Nov 2021 Eden Chlamtáč, Yury Makarychev, Ali Vakilian

We utilize convex programming techniques to approximate the $(p, q)$-Fair Clustering problem for different values of $p$ and $q$.

Clustering

Local Correlation Clustering with Asymmetric Classification Errors

no code implementations11 Aug 2021 Jafar Jafarov, Sanchit Kalhan, Konstantin Makarychev, Yury Makarychev

In the Correlation Clustering problem, we are given a complete weighted graph $G$ with its edges labeled as "similar" and "dissimilar" by a noisy binary classifier.

Classification Clustering

Correlation Clustering with Asymmetric Classification Errors

no code implementations ICML 2020 Jafar Jafarov, Sanchit Kalhan, Konstantin Makarychev, Yury Makarychev

In the Correlation Clustering problem, we are given a weighted graph $G$ with its edges labeled as "similar" or "dissimilar" by a binary classifier.

Classification Clustering

Approximation Algorithms for Socially Fair Clustering

no code implementations3 Mar 2021 Yury Makarychev, Ali Vakilian

In order to obtain our result, we introduce a strengthened LP relaxation and show that it has an integrality gap of $\Theta(\frac{\log \ell}{\log\log\ell})$ for a fixed $p$.

Clustering

Learning Communities in the Presence of Errors

no code implementations10 Nov 2015 Konstantin Makarychev, Yury Makarychev, Aravindan Vijayaraghavan

Many algorithms exist for learning communities in the Stochastic Block Model, but they do not work well in the presence of errors.

Community Detection graph partitioning +2

Correlation Clustering with Noisy Partial Information

no code implementations22 Jun 2014 Konstantin Makarychev, Yury Makarychev, Aravindan Vijayaraghavan

In this paper, we propose and study a semi-random model for the Correlation Clustering problem on arbitrary graphs G. We give two approximation algorithms for Correlation Clustering instances from this model.

Clustering General Classification

Clustering, Hamming Embedding, Generalized LSH and the Max Norm

no code implementations13 May 2014 Behnam Neyshabur, Yury Makarychev, Nathan Srebro

We study the convex relaxation of clustering and hamming embedding, focusing on the asymmetric case (co-clustering and asymmetric hamming embedding), understanding their relationship to LSH as studied by (Charikar 2002) and to the max-norm ball, and the differences between their symmetric and asymmetric versions.

Clustering

The Power of Asymmetry in Binary Hashing

1 code implementation NeurIPS 2013 Behnam Neyshabur, Payman Yadollahpour, Yury Makarychev, Ruslan Salakhutdinov, Nathan Srebro

When approximating binary similarity using the hamming distance between short binary hashes, we show that even if the similarity is symmetric, we can have shorter and more accurate hashes by using two distinct code maps.

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