Search Results for author: Yizhou Chen

Found 13 papers, 8 papers with code

Dynamically Anchored Prompting for Task-Imbalanced Continual Learning

1 code implementation23 Apr 2024 Chenxing Hong, Yan Jin, Zhiqi Kang, Yizhou Chen, Mengke Li, Yang Lu, Hanzi Wang

We find that imbalanced tasks significantly challenge the capability of models to control the trade-off between stability and plasticity from the perspective of recent prompt-based continual learning methods.

Continual Learning

Clustered Embedding Learning for Recommender Systems

no code implementations3 Feb 2023 Yizhou Chen, Guangda Huzhang, AnXiang Zeng, Qingtao Yu, Hui Sun, Heng-yi Li, Jingyi Li, Yabo Ni, Han Yu, Zhiming Zhou

However, such a method has two important limitations in real-world applications: 1) it is hard to learn embeddings that generalize well for users and items with rare interactions on their own; and 2) it may incur unbearably high memory costs when the number of users and items scales up.

Recommendation Systems

EISeg: An Efficient Interactive Segmentation Tool based on PaddlePaddle

1 code implementation17 Oct 2022 Yuying Hao, Yi Liu, Yizhou Chen, Lin Han, Juncai Peng, Shiyu Tang, Guowei Chen, Zewu Wu, Zeyu Chen, Baohua Lai

In recent years, the rapid development of deep learning has brought great advancements to image and video segmentation methods based on neural networks.

Image Segmentation Interactive Segmentation +4

Visuo-Tactile Transformers for Manipulation

1 code implementation30 Sep 2022 Yizhou Chen, Andrea Sipos, Mark Van der Merwe, Nima Fazeli

Learning representations in the joint domain of vision and touch can improve manipulation dexterity, robustness, and sample-complexity by exploiting mutual information and complementary cues.

Model-based Reinforcement Learning Representation Learning

On Provably Robust Meta-Bayesian Optimization

1 code implementation14 Jun 2022 Zhongxiang Dai, Yizhou Chen, Haibin Yu, Bryan Kian Hsiang Low, Patrick Jaillet

We prove that both algorithms are asymptotically no-regret even when some or all previous tasks are dissimilar to the current task, and show that RM-GP-UCB enjoys a better theoretical robustness than RM-GP-TS.

Bayesian Optimization Meta-Learning +1

Multi-treatment Effect Estimation from Biomedical Data

1 code implementation14 Dec 2021 Raquel Aoki, Yizhou Chen, Martin Ester

This work proposes the M3E2, a multi-task learning neural network model to estimate the effect of multiple treatments.

Multi-Task Learning

Neural Ensemble Search via Bayesian Sampling

no code implementations6 Sep 2021 Yao Shu, Yizhou Chen, Zhongxiang Dai, Bryan Kian Hsiang Low

Unfortunately, these NAS algorithms aim to select only one single well-performing architecture from their search spaces and thus have overlooked the capability of neural network ensemble (i. e., an ensemble of neural networks with diverse architectures) in achieving improved performance over a single final selected architecture.

Adversarial Defense Neural Architecture Search

Convolutional Normalizing Flows for Deep Gaussian Processes

no code implementations17 Apr 2021 Haibin Yu, Dapeng Liu, Yizhou Chen, Bryan Kian Hsiang Low, Patrick Jaillet

Deep Gaussian processes (DGPs), a hierarchical composition of GP models, have successfully boosted the expressive power of their single-layer counterpart.

Gaussian Processes Variational Inference

Gated Transformer Networks for Multivariate Time Series Classification

2 code implementations26 Mar 2021 Minghao Liu, Shengqi Ren, Siyuan Ma, Jiahui Jiao, Yizhou Chen, Zhiguang Wang, Wei Song

In this work, we explored a simple extension of the current Transformer Networks with gating, named Gated Transformer Networks (GTN) for the multivariate time series classification problem.

Classification General Classification +3

Meta-Learning with Implicit Processes

no code implementations1 Jan 2021 Yizhou Chen, Dong Li, Na Li, TONG LIANG, Shizhuo Zhang, Bryan Kian Hsiang Low

This paper presents a novel implicit process-based meta-learning (IPML) algorithm that, in contrast to existing works, explicitly represents each task as a continuous latent vector and models its probabilistic belief within the highly expressive IP framework.

Meta-Learning

R2-B2: Recursive Reasoning-Based Bayesian Optimization for No-Regret Learning in Games

no code implementations ICML 2020 Zhongxiang Dai, Yizhou Chen, Kian Hsiang Low, Patrick Jaillet, Teck-Hua Ho

This paper presents a recursive reasoning formalism of Bayesian optimization (BO) to model the reasoning process in the interactions between boundedly rational, self-interested agents with unknown, complex, and costly-to-evaluate payoff functions in repeated games, which we call Recursive Reasoning-Based BO (R2-B2).

Bayesian Optimization Multi-agent Reinforcement Learning

Implicit Posterior Variational Inference for Deep Gaussian Processes

1 code implementation NeurIPS 2019 Haibin Yu, Yizhou Chen, Zhongxiang Dai, Kian Hsiang Low, Patrick Jaillet

This paper presents an implicit posterior variational inference (IPVI) framework for DGPs that can ideally recover an unbiased posterior belief and still preserve time efficiency.

Gaussian Processes Variational Inference

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