Search Results for author: Gautam Das

Found 3 papers, 1 papers with code

Leveraging History for Faster Sampling of Online Social Networks

1 code implementation ‏‏‎ ‎ 2020 Zhuojie Zhou, Nan Zhang, Gautam Das

Random walk fits naturally with this problem because, for most online social networks, the only query we can issue through the interface is to retrieve the neighbors of a given node (i. e., no access to the full graph topology).

Multi-Attribute Selectivity Estimation Using Deep Learning

no code implementations24 Mar 2019 Shohedul Hasan, Saravanan Thirumuruganathan, Jees Augustine, Nick Koudas, Gautam Das

Selectivity estimation - the problem of estimating the result size of queries - is a fundamental problem in databases.

Density Estimation

Approximate Query Processing using Deep Generative Models

no code implementations24 Mar 2019 Saravanan Thirumuruganathan, Shohedul Hasan, Nick Koudas, Gautam Das

We use deep generative models, an unsupervised learning based approach, to learn the data distribution faithfully such that aggregate queries could be answered approximately by generating samples from the learned model.

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