Search Results for author: Tracy Ke

Found 3 papers, 0 papers with code

Semi-supervised Community Detection via Structural Similarity Metrics

no code implementations1 Jun 2023 Yicong Jiang, Tracy Ke

Motivated by social network analysis and network-based recommendation systems, we study a semi-supervised community detection problem in which the objective is to estimate the community label of a new node using the network topology and partially observed community labels of existing nodes.

Community Detection Recommendation Systems +1

Sharp Impossibility Results for Hyper-graph Testing

no code implementations NeurIPS 2021 Jiashun Jin, Tracy Ke, Jiajun Liang

In a broad Degree-Corrected Mixed-Membership (DCMM) setting, we test whether a non-uniform hypergraph has only one community or has multiple communities.

A Comparison of Variable Selection Methods for Blockwise Diagonal Designs

no code implementations ICLR 2022 Tracy Ke, Longlin Wang

Lasso is a celebrated method for variable selection in linear models, but it faces challenges when the covariates are moderately or strongly correlated.

Variable Selection

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