Search Results for author: Yule Wang

Found 12 papers, 3 papers with code

A Revisit of Total Correlation in Disentangled Variational Auto-Encoder with Partial Disentanglement

no code implementations4 Feb 2025 Chengrui Li, Yunmiao Wang, Yule Wang, Weihan Li, Dieter Jaeger, Anqi Wu

A fully disentangled variational auto-encoder (VAE) aims to identify disentangled latent components from observations.

Disentanglement

Exploring Behavior-Relevant and Disentangled Neural Dynamics with Generative Diffusion Models

1 code implementation12 Oct 2024 Yule Wang, Chengrui Li, Weihan Li, Anqi Wu

To tackle this limitation, our approach, named ``BeNeDiff'', first identifies a fine-grained and disentangled neural subspace using a behavior-informed latent variable model.

Disentanglement

Learning Time-Varying Multi-Region Communications via Scalable Markovian Gaussian Processes

no code implementations29 Jun 2024 Weihan Li, Yule Wang, Chengrui Li, Anqi Wu

Understanding and constructing brain communications that capture dynamic communications across multiple regions is fundamental to modern system neuroscience, yet current methods struggle to find time-varying region-level communications or scale to large neural datasets with long recording durations.

Gaussian Processes State Space Models +1

Multi-Region Markovian Gaussian Process: An Efficient Method to Discover Directional Communications Across Multiple Brain Regions

1 code implementation5 Feb 2024 Weihan Li, Chengrui Li, Yule Wang, Anqi Wu

Consequently, the model achieves a linear inference cost over time points and provides an interpretable low-dimensional representation, revealing communication directions across brain regions and separating oscillatory communications into different frequency bands.

A Differentiable Partially Observable Generalized Linear Model with Forward-Backward Message Passing

no code implementations2 Feb 2024 Chengrui Li, Weihan Li, Yule Wang, Anqi Wu

For (1), we propose a new differentiable POGLM, which enables the pathwise gradient estimator, better than the score function gradient estimator used in existing works.

Variational Inference

Forward $χ^2$ Divergence Based Variational Importance Sampling

no code implementations4 Nov 2023 Chengrui Li, Yule Wang, Weihan Li, Anqi Wu

Maximizing the log-likelihood is a crucial aspect of learning latent variable models, and variational inference (VI) stands as the commonly adopted method.

parameter estimation Variational Inference

Extraction and Recovery of Spatio-Temporal Structure in Latent Dynamics Alignment with Diffusion Models

1 code implementation9 Jun 2023 Yule Wang, Zijing Wu, Chengrui Li, Anqi Wu

Specifically, the latent dynamics structures of the source domain are first extracted by a diffusion model.

Task Aligned Meta-learning based Augmented Graph for Cold-Start Recommendation

no code implementations11 Aug 2022 Yuxiang Shi, Yue Ding, Bo Chen, YuYang Huang, Yule Wang, Ruiming Tang, Dong Wang

In this paper, we propose a Task aligned Meta-learning based Augmented Graph (TMAG) to address cold-start recommendation.

Graph Neural Network Meta-Learning

Extracting Attentive Social Temporal Excitation for Sequential Recommendation

no code implementations28 Sep 2021 Yunzhe Li, Yue Ding, Bo Chen, Xin Xin, Yule Wang, Yuxiang Shi, Ruiming Tang, Dong Wang

In this paper, we propose a novel time-aware sequential recommendation framework called Social Temporal Excitation Networks (STEN), which introduces temporal point processes to model the fine-grained impact of friends' behaviors on the user s dynamic interests in an event-level direct paradigm.

Collaborative Filtering Graph Embedding +2

ICPE: An Item Cluster-Wise Pareto-Efficient Framework for Recommendation Debiasing

no code implementations27 Sep 2021 Yule Wang, Xin Xin, Yue Ding, Yunzhe Li, Dong Wang

In detail, we define our item cluster-wise optimization target as the recommender model should balance all item clusters that differ in popularity, thus we set the model learning on each item cluster as a unique optimization objective.

counterfactual Counterfactual Inference +2

SAR Image Change Detection via Spatial Metric Learning with an Improved Mahalanobis Distance

no code implementations19 Jun 2019 Rongfang Wang, Jia-Wei Chen, Yule Wang, Licheng Jiao, Mi Wang

In this letter, we proposed a spatial metric learning method to obtain a difference image more robust to the speckle by learning a metric from a set of constraint pairs.

Change Detection Metric Learning

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