Search Results for author: Rajesh Jayaram

Found 8 papers, 2 papers with code

Unleashing Graph Partitioning for Large-Scale Nearest Neighbor Search

1 code implementation4 Mar 2024 Lars Gottesbüren, Laxman Dhulipala, Rajesh Jayaram, Jakub Lacki

In particular, our new routing methods enable the use of balanced graph partitioning, which is a high-quality partitioning method without a naturally associated routing algorithm.

graph partitioning

A quasi-polynomial time algorithm for Multi-Dimensional Scaling via LP hierarchies

no code implementations29 Nov 2023 Ainesh Bakshi, Vincent Cohen-Addad, Samuel B. Hopkins, Rajesh Jayaram, Silvio Lattanzi

Multi-dimensional Scaling (MDS) is a family of methods for embedding an $n$-point metric into low-dimensional Euclidean space.

Data Visualization

HyperAttention: Long-context Attention in Near-Linear Time

1 code implementation9 Oct 2023 Insu Han, Rajesh Jayaram, Amin Karbasi, Vahab Mirrokni, David P. Woodruff, Amir Zandieh

Recent work suggests that in the worst-case scenario, quadratic time is necessary unless the entries of the attention matrix are bounded or the matrix has low stable rank.

A Near-Linear Time Algorithm for the Chamfer Distance

no code implementations6 Jul 2023 Ainesh Bakshi, Piotr Indyk, Rajesh Jayaram, Sandeep Silwal, Erik Waingarten

For any two point sets $A, B \subset \mathbb{R}^d$ of size up to $n$, the Chamfer distance from $A$ to $B$ is defined as $\text{CH}(A, B)=\sum_{a \in A} \min_{b \in B} d_X(a, b)$, where $d_X$ is the underlying distance measure (e. g., the Euclidean or Manhattan distance).

Stars: Tera-Scale Graph Building for Clustering and Graph Learning

no code implementations5 Dec 2022 CJ Carey, Jonathan Halcrow, Rajesh Jayaram, Vahab Mirrokni, Warren Schudy, Peilin Zhong

We evaluate the performance of Stars for clustering and graph learning, and demonstrate 10~1000-fold improvements in pairwise similarity comparisons compared to different baselines, and 2~10-fold improvement in running time without quality loss.

Clustering Graph Learning

Learning and Testing Junta Distributions with Subcube Conditioning

no code implementations26 Apr 2020 Xi Chen, Rajesh Jayaram, Amit Levi, Erik Waingarten

The main contribution is an algorithm for finding relevant coordinates in a $k$-junta distribution with subcube conditioning [BC18, CCKLW20].

Open-Ended Question Answering

Optimal Sketching for Kronecker Product Regression and Low Rank Approximation

no code implementations NeurIPS 2019 Huaian Diao, Rajesh Jayaram, Zhao Song, Wen Sun, David P. Woodruff

For input $\mathcal{A}$ as above, we give $O(\sum_{i=1}^q \text{nnz}(A_i))$ time algorithms, which is much faster than computing $\mathcal{A}$.

regression

Learning Two Layer Rectified Neural Networks in Polynomial Time

no code implementations5 Nov 2018 Ainesh Bakshi, Rajesh Jayaram, David P. Woodruff

Given $n$ samples as a matrix $\mathbf{X} \in \mathbb{R}^{d \times n}$ and the (possibly noisy) labels $\mathbf{U}^* f(\mathbf{V}^* \mathbf{X}) + \mathbf{E}$ of the network on these samples, where $\mathbf{E}$ is a noise matrix, our goal is to recover the weight matrices $\mathbf{U}^*$ and $\mathbf{V}^*$.

Vocal Bursts Valence Prediction

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