Search Results for author: Chi-Guhn Lee

Found 12 papers, 1 papers with code

Unsupervised Few-shot Learning via Deep Laplacian Eigenmaps

no code implementations7 Oct 2022 Kuilin Chen, Chi-Guhn Lee

Despite the recent progress in few-shot learning, most methods rely on supervised pretraining or meta-learning on labeled meta-training data and cannot be applied to the case where the pretraining data is unlabeled.

Self-Supervised Learning Unsupervised Few-Shot Image Classification +1

Quantum-Inspired Tensor Neural Networks for Partial Differential Equations

no code implementations3 Aug 2022 Raj Patel, Chia-Wei Hsing, Serkan Sahin, Saeed S. Jahromi, Samuel Palmer, Shivam Sharma, Christophe Michel, Vincent Porte, Mustafa Abid, Stephane Aubert, Pierre Castellani, Chi-Guhn Lee, Samuel Mugel, Roman Orus

We demonstrate that TNN provide significant parameter savings while attaining the same accuracy as compared to the classical Dense Neural Network (DNN).

Don't overfit the history -- Recursive time series data augmentation

no code implementations6 Jul 2022 Amine Mohamed Aboussalah, Min-Jae Kwon, Raj G Patel, Cheng Chi, Chi-Guhn Lee

We apply RIM to diverse real world time series cases to achieve strong performance over non-augmented data on regression, classification, and reinforcement learning tasks.

Data Augmentation Time Series +1

Meta-free few-shot learning via representation learning with weight averaging

no code implementations26 Apr 2022 Kuilin Chen, Chi-Guhn Lee

To tackle the aforementioned issues, we propose a new transfer learning method to obtain accurate and reliable models for few-shot regression and classification.

Classification Few-Shot Learning +2

Risk-Aware Transfer in Reinforcement Learning using Successor Features

no code implementations NeurIPS 2021 Michael Gimelfarb, André Barreto, Scott Sanner, Chi-Guhn Lee

Sample efficiency and risk-awareness are central to the development of practical reinforcement learning (RL) for complex decision-making.

Decision Making reinforcement-learning +2

Attentive Gaussian processes for probabilistic time-series generation

no code implementations10 Feb 2021 Kuilin Chen, Chi-Guhn Lee

We propose a computationally efficient attention-based network combined with the Gaussian process regression to generate real-valued sequence, which we call the Attentive-GP.

Gaussian Processes Time Series +2

Symmetry-Augmented Representation for Time Series

no code implementations1 Jan 2021 Amine Mohamed Aboussalah, Chi-Guhn Lee

We examine the hypothesis that the concept of symmetry augmentation is fundamentally linked to learning.

Management Time Series +1

Incremental few-shot learning via vector quantization in deep embedded space

no code implementations ICLR 2021 Kuilin Chen, Chi-Guhn Lee

For classification problems, we employ the nearest neighbor scheme to make classification on sparsely available data and incorporate intra-class variation, less forgetting regularization and calibration of reference vectors to mitigate catastrophic forgetting.

Few-Shot Class-Incremental Learning Few-Shot Learning +3

ε-BMC: A Bayesian Ensemble Approach to Epsilon-Greedy Exploration in Model-Free Reinforcement Learning

1 code implementation2 Jul 2020 Michael Gimelfarb, Scott Sanner, Chi-Guhn Lee

Resolving the exploration-exploitation trade-off remains a fundamental problem in the design and implementation of reinforcement learning (RL) algorithms.

Reinforcement Learning (RL)

Bayesian Experience Reuse for Learning from Multiple Demonstrators

no code implementations10 Jun 2020 Michael Gimelfarb, Scott Sanner, Chi-Guhn Lee

We demonstrate the effectiveness of this approach for static optimization of smooth functions, and transfer learning in a high-dimensional supply chain problem with cost uncertainty.

Transfer Learning

Contextual Policy Transfer in Reinforcement Learning Domains via Deep Mixtures-of-Experts

no code implementations29 Feb 2020 Michael Gimelfarb, Scott Sanner, Chi-Guhn Lee

In this paper, we assume knowledge of estimated source task dynamics and policies, and common sub-goals but different dynamics.

OpenAI Gym Q-Learning +2

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