Search Results for author: Baoquan Zhang

Found 14 papers, 7 papers with code

Sentiment Interpretable Logic Tensor Network for Aspect-Term Sentiment Analysis

no code implementations COLING 2022 BoWen Zhang, Xu Huang, Zhichao Huang, Hu Huang, Baoquan Zhang, Xianghua Fu, Liwen Jing

SILTN is interpretable because it is a neurosymbolic formalism and a computational model that supports learning and reasoning about data with a differentiable first-order logic language (FOL).

Computational Efficiency Knowledge Distillation +1

A Challenge Dataset and Effective Models for Conversational Stance Detection

1 code implementation17 Mar 2024 Fuqiang Niu, Min Yang, Ang Li, Baoquan Zhang, Xiaojiang Peng, BoWen Zhang

Previous stance detection studies typically concentrate on evaluating stances within individual instances, thereby exhibiting limitations in effectively modeling multi-party discussions concerning the same specific topic, as naturally transpire in authentic social media interactions.

Stance Detection

Codebook Transfer with Part-of-Speech for Vector-Quantized Image Modeling

no code implementations15 Mar 2024 Baoquan Zhang, Huaibin Wang, Luo Chuyao, Xutao Li, Liang Guotao, Yunming Ye, Xiaochen Qi, Yao He

To this end, we propose a novel codebook transfer framework with part-of-speech, called VQCT, which aims to transfer a well-trained codebook from pretrained language models to VQIM for robust codebook learning.

Image Generation

DiffCast: A Unified Framework via Residual Diffusion for Precipitation Nowcasting

1 code implementation11 Dec 2023 Demin Yu, Xutao Li, Yunming Ye, Baoquan Zhang, Chuyao Luo, Kuai Dai, Rui Wang, Xunlai Chen

A unified and flexible framework that can equip any type of spatio-temporal models is proposed based on residual diffusion, which effectively tackles the shortcomings of previous methods.

HPCR: Holistic Proxy-based Contrastive Replay for Online Continual Learning

1 code implementation26 Sep 2023 Huiwei Lin, Shanshan Feng, Baoquan Zhang, Xutao Li, Yew-Soon Ong, Yunming Ye

Inspired by this finding, we propose a novel replay-based method called proxy-based contrastive replay (PCR), which replaces anchor-to-sample pairs with anchor-to-proxy pairs in the contrastive-based loss to alleviate the phenomenon of forgetting.

Continual Learning

UER: A Heuristic Bias Addressing Approach for Online Continual Learning

no code implementations8 Sep 2023 Huiwei Lin, Shanshan Feng, Baoquan Zhang, Hongliang Qiao, Xutao Li, Yunming Ye

By decomposing the dot-product logits into an angle factor and a norm factor, we empirically find that the bias problem mainly occurs in the angle factor, which can be used to learn novel knowledge as cosine logits.

Continual Learning

MetaDiff: Meta-Learning with Conditional Diffusion for Few-Shot Learning

no code implementations31 Jul 2023 Baoquan Zhang, Chuyao Luo, Demin Yu, Huiwei Lin, Xutao Li, Yunming Ye, BoWen Zhang

Its key idea is learning a deep model in a bi-level optimization manner, where the outer-loop process learns a shared gradient descent algorithm (i. e., its hyperparameters), while the inner-loop process leverage it to optimize a task-specific model by using only few labeled data.

Denoising Few-Shot Learning

PCR: Proxy-based Contrastive Replay for Online Class-Incremental Continual Learning

1 code implementation CVPR 2023 Huiwei Lin, Baoquan Zhang, Shanshan Feng, Xutao Li, Yunming Ye

It aims to continuously learn new classes from data stream and the samples of data stream are seen only once, which suffers from the catastrophic forgetting issue, i. e., forgetting historical knowledge of old classes.

Continual Learning

MetaDT: Meta Decision Tree with Class Hierarchy for Interpretable Few-Shot Learning

no code implementations3 Mar 2022 Baoquan Zhang, Hao Jiang, Xutao Li, Shanshan Feng, Yunming Ye, Rui Ye

Then, resorting to the prior, we split each few-shot task to a set of subtasks with different concept levels and then perform class prediction via a model of decision tree.

Few-Shot Learning Representation Learning

SGMNet: Scene Graph Matching Network for Few-Shot Remote Sensing Scene Classification

no code implementations9 Oct 2021 Baoquan Zhang, Shanshan Feng, Xutao Li, Yunming Ye, Rui Ye

In this framework, a scene graph construction module is carefully designed to represent each test remote sensing image or each scene class as a scene graph, where the nodes reflect these co-occurrence objects meanwhile the edges capture the spatial correlations between these co-occurrence objects.

graph construction Graph Matching +3

Prototype Completion for Few-Shot Learning

1 code implementation11 Aug 2021 Baoquan Zhang, Xutao Li, Yunming Ye, Shanshan Feng

In this paper, 1) we figure out the reason, i. e., in the pre-trained feature space, the base classes already form compact clusters while novel classes spread as groups with large variances, which implies that fine-tuning feature extractor is less meaningful; 2) instead of fine-tuning feature extractor, we focus on estimating more representative prototypes.

Attribute Few-Shot Image Classification +1

MetaNODE: Prototype Optimization as a Neural ODE for Few-Shot Learning

1 code implementation26 Mar 2021 Baoquan Zhang, Xutao Li, Shanshan Feng, Yunming Ye, Rui Ye

Although the existing meta-optimizers can also be adapted to our framework, they all overlook a crucial gradient bias issue, \emph{i. e.}, the mean-based gradient estimation is also biased on sparse data.

Few-Shot Learning

Prototype Completion with Primitive Knowledge for Few-Shot Learning

1 code implementation CVPR 2021 Baoquan Zhang, Xutao Li, Yunming Ye, Zhichao Huang, Lisai Zhang

To avoid the prototype completion error caused by primitive knowledge noises or class differences, we further develop a Gaussian based prototype fusion strategy that combines the mean-based and completed prototypes by exploiting the unlabeled samples.

Attribute Few-Shot Learning

MetaConcept: Learn to Abstract via Concept Graph for Weakly-Supervised Few-Shot Learning

no code implementations5 Jul 2020 Baoquan Zhang, Ka-Cheong Leung, Yunming Ye, Xutao Li

To this end, we propose a novel meta-learning framework, called MetaConcept, which learns to abstract concepts via the concept graph.

Few-Shot Learning

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