Search Results for author: Joowon Lee

Found 4 papers, 2 papers with code

Supervised Dictionary Learning with Auxiliary Covariates

1 code implementation14 Jun 2022 Joowon Lee, Hanbaek Lyu, Weixin Yao

Supervised dictionary learning (SDL) is a classical machine learning method that simultaneously seeks feature extraction and classification tasks, which are not necessarily a priori aligned objectives.

Dictionary Learning Document Classification +1

Encrypted Dynamic Control exploiting Limited Number of Multiplications and a Method using Ring-LWE based Cryptosystem

no code implementations7 Jul 2023 Joowon Lee, Donggil Lee, Junsoo Kim, Hyungbo Shim

In this paper, we present a method to encrypt dynamic controllers that can be implemented through most homomorphic encryption schemes, including somewhat, leveled fully, and fully homomorphic encryption.

Exponentially Convergent Algorithms for Supervised Matrix Factorization

1 code implementation NeurIPS 2023 Joowon Lee, Hanbaek Lyu, Weixin Yao

Supervised matrix factorization (SMF) is a classical machine learning method that simultaneously seeks feature extraction and classification tasks, which are not necessarily a priori aligned objectives.

Multi-class Classification

Learning with errors based dynamic encryption that discloses residue signal for anomaly detection

no code implementations3 Apr 2024 Yeongjun Jang, Joowon Lee, Junsoo Kim, Hyungbo Shim

Implementing anomaly detection on encrypted control systems has been a challenge because it is hard to detect an anomaly from the encrypted residue signal without the secret key.

Anomaly Detection

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