Search Results for author: Junya Chen

Found 10 papers, 7 papers with code

Toward Sustainable Continual Learning: Detection and Knowledge Repurposing of Similar Tasks

no code implementations11 Oct 2022 Sijia Wang, Yoojin Choi, Junya Chen, Mostafa El-Khamy, Ricardo Henao

This results in the eventual prohibitive expansion of the knowledge repository if we consider learning from a long sequence of tasks.

Continual Learning

Finite-Time Consensus Learning for Decentralized Optimization with Nonlinear Gossiping

no code implementations4 Nov 2021 Junya Chen, Sijia Wang, Lawrence Carin, Chenyang Tao

Distributed learning has become an integral tool for scaling up machine learning and addressing the growing need for data privacy.

Attribute Distributed Optimization

Variational Inference with Holder Bounds

no code implementations4 Nov 2021 Junya Chen, Danni Lu, Zidi Xiu, Ke Bai, Lawrence Carin, Chenyang Tao

In this work, we present a careful analysis of the thermodynamic variational objective (TVO), bridging the gap between existing variational objectives and shedding new insights to advance the field.

Variational Inference

Tight Mutual Information Estimation With Contrastive Fenchel-Legendre Optimization

1 code implementation2 Jul 2021 Qing Guo, Junya Chen, Dong Wang, Yuewei Yang, Xinwei Deng, Lawrence Carin, Fan Li, Jing Huang, Chenyang Tao

Successful applications of InfoNCE and its variants have popularized the use of contrastive variational mutual information (MI) estimators in machine learning.

Mutual Information Estimation

Multi-Grained Knowledge Distillation for Named Entity Recognition

1 code implementation NAACL 2021 Xuan Zhou, Xiao Zhang, Chenyang Tao, Junya Chen, Bing Xu, Wei Wang, Jing Xiao

To maximally assimilate knowledge into the student model, we propose a multi-grained distillation scheme, which integrates cross entropy involved in conditional random field (CRF) and fuzzy learning. To validate the effectiveness of our proposal, we conducted a comprehensive evaluation on five NER benchmarks, reporting cross-the-board performance gains relative to competing prior-arts.

Knowledge Distillation named-entity-recognition +2

Reconsidering Generative Objectives For Counterfactual Reasoning

1 code implementation NeurIPS 2020 Danni Lu, Chenyang Tao, Junya Chen, Fan Li, Feng Guo, Lawrence Carin

As a step towards more flexible, scalable and accurate ITE estimation, we present a novel generative Bayesian estimation framework that integrates representation learning, adversarial matching and causal estimation.

Causal Inference counterfactual +2

Supercharging Imbalanced Data Learning With Energy-based Contrastive Representation Transfer

1 code implementation NeurIPS 2021 Zidi Xiu, Junya Chen, Ricardo Henao, Benjamin Goldstein, Lawrence Carin, Chenyang Tao

Dealing with severe class imbalance poses a major challenge for real-world applications, especially when the accurate classification and generalization of minority classes is of primary interest.

Inductive Bias Transfer Learning

GO Hessian for Expectation-Based Objectives

1 code implementation16 Jun 2020 Yulai Cong, Miaoyun Zhao, Jianqiao Li, Junya Chen, Lawrence Carin

An unbiased low-variance gradient estimator, termed GO gradient, was proposed recently for expectation-based objectives $\mathbb{E}_{q_{\boldsymbol{\gamma}}(\boldsymbol{y})} [f(\boldsymbol{y})]$, where the random variable (RV) $\boldsymbol{y}$ may be drawn from a stochastic computation graph with continuous (non-reparameterizable) internal nodes and continuous/discrete leaves.

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