Search Results for author: Zhibo Cai

Found 3 papers, 2 papers with code

An Adaptive Dimension Reduction Estimation Method for High-dimensional Bayesian Optimization

no code implementations8 Mar 2024 Shouri Hu, Jiawei Li, Zhibo Cai

Initially, we identify the effective dimension reduction (EDR) subspace for the objective function using the minimum average variance estimation (MAVE) method.

Bayesian Optimization Dimensionality Reduction

Empowering Collaborative Filtering with Principled Adversarial Contrastive Loss

1 code implementation NeurIPS 2023 An Zhang, Leheng Sheng, Zhibo Cai, Xiang Wang, Tat-Seng Chua

To bridge the gap, we delve into the reasons underpinning the success of contrastive loss in CF, and propose a principled Adversarial InfoNCE loss (AdvInfoNCE), which is a variant of InfoNCE, specially tailored for CF methods.

Collaborative Filtering Contrastive Learning +3

Boosting Differentiable Causal Discovery via Adaptive Sample Reweighting

1 code implementation6 Mar 2023 An Zhang, Fangfu Liu, Wenchang Ma, Zhibo Cai, Xiang Wang, Tat-Seng Chua

Despite great success in low-dimensional linear systems, it has been observed that these approaches overly exploit easier-to-fit samples, thus inevitably learning spurious edges.

Bilevel Optimization Causal Discovery

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