Campus Units

Computer Science, Electrical and Computer Engineering

Document Type

Article

Publication Date

2017

Journal or Book Title

arXiv

Abstract

We present methods for k-means clustering on a stream with a focus on providing fast responses to clustering queries. When compared with the current state-of-the-art, our methods provide a substantial improvement in the time to answer a query for cluster centers, while retaining the desirable properties of provably small approximation error, and low space usage. Our algorithms are based on a novel idea of "coreset caching" that reuses coresets (summaries of data) computed for recent queries in answering the current clustering query. We present both provable theoretical results and detailed experiments demonstrating their correctness and efficiency.

Comments

This is a manuscript of the article Zhang, Yu, Kanat Tangwongsan, and Srikanta Tirthapura. "Streaming algorithms for k-means clustering with fast queries." arXiv preprint arXiv:1701.03826 (2017). Posted with permission.

Language

en

File Format

application/pdf

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