Search Results for author: Ankit Garg

Found 6 papers, 0 papers with code

Learning Arithmetic Formulas in the Presence of Noise: A General Framework and Applications to Unsupervised Learning

no code implementations13 Nov 2023 Pritam Chandra, Ankit Garg, Neeraj Kayal, Kunal Mittal, Tanmay Sinha

We present a general framework for designing efficient algorithms for unsupervised learning problems, such as mixtures of Gaussians and subspace clustering.

OOD-DiskANN: Efficient and Scalable Graph ANNS for Out-of-Distribution Queries

no code implementations22 Oct 2022 Shikhar Jaiswal, Ravishankar Krishnaswamy, Ankit Garg, Harsha Vardhan Simhadri, Sheshansh Agrawal

State-of-the-art algorithms for Approximate Nearest Neighbor Search (ANNS) such as DiskANN, FAISS-IVF, and HNSW build data dependent indices that offer substantially better accuracy and search efficiency over data-agnostic indices by overfitting to the index data distribution.

Learning sums of powers of low-degree polynomials in the non-degenerate case

no code implementations15 Apr 2020 Ankit Garg, Neeraj Kayal, Chandan Saha

We develop algorithms for writing a polynomial as sums of powers of low degree polynomials.

Communication Lower Bounds for Statistical Estimation Problems via a Distributed Data Processing Inequality

no code implementations24 Jun 2015 Mark Braverman, Ankit Garg, Tengyu Ma, Huy L. Nguyen, David P. Woodruff

We study the tradeoff between the statistical error and communication cost of distributed statistical estimation problems in high dimensions.

On Communication Cost of Distributed Statistical Estimation and Dimensionality

no code implementations NeurIPS 2014 Ankit Garg, Tengyu Ma, Huy L. Nguyen

We conjecture that the tradeoff between communication and squared loss demonstrated by this protocol is essentially optimal up to logarithmic factor.

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