Search Results for author: Pan Du

Found 17 papers, 5 papers with code

Semi-Supervised Learning via Weight-aware Distillation under Class Distribution Mismatch

1 code implementation ICCV 2023 Pan Du, Suyun Zhao, Zisen Sheng, Cuiping Li, Hong Chen

Specifically, WAD captures adaptive weights and high-quality pseudo labels to target instances by exploring point mutual information (PMI) in representation space to maximize the role of unlabeled data and filter unknown categories.

Mathematical Reasoning

PReGAN: Answer Oriented Passage Ranking with Weakly Supervised GAN

no code implementations5 Jul 2022 Pan Du, Jian-Yun Nie, Yutao Zhu, Hao Jiang, Lixin Zou, Xiaohui Yan

Beyond topical relevance, passage ranking for open-domain factoid question answering also requires a passage to contain an answer (answerability).

Passage Ranking Question Answering

Deep learning-based surrogate model for 3-D patient-specific computational fluid dynamics

no code implementations11 Apr 2022 Pan Du, Xiaozhi Zhu, Jian-Xun Wang

An efficient supervised learning solution is proposed to map the geometric inputs to the hemodynamics predictions in latent spaces.

Uncertainty Quantification

FedGBF: An efficient vertical federated learning framework via gradient boosting and bagging

no code implementations3 Apr 2022 Yujin Han, Pan Du, Kai Yang

With the aim of obtaining an outstanding performance with less time cost, we propose a novel model in a vertically federated setting termed as Federated Gradient Boosting Forest (FedGBF).

Vertical Federated Learning

Contrastive Learning of User Behavior Sequence for Context-Aware Document Ranking

1 code implementation24 Aug 2021 Yutao Zhu, Jian-Yun Nie, Zhicheng Dou, Zhengyi Ma, Xinyu Zhang, Pan Du, Xiaochen Zuo, Hao Jiang

To learn a more robust representation of the user behavior sequence, we propose a method based on contrastive learning, which takes into account the possible variations in user's behavior sequences.

Contrastive Learning Data Augmentation +1

Proactive Retrieval-based Chatbots based on Relevant Knowledge and Goals

1 code implementation18 Jul 2021 Yutao Zhu, Jian-Yun Nie, Kun Zhou, Pan Du, Hao Jiang, Zhicheng Dou

The final response is selected according to the predicted knowledge, the goal to achieve, and the context.

Multi-Task Learning Retrieval

Emotion Eliciting Machine: Emotion Eliciting Conversation Generation based on Dual Generator

no code implementations18 May 2021 Hao Jiang, Yutao Zhu, Xinyu Zhang, Zhicheng Dou, Pan Du, Te Pi, Yantao Jia

Then we propose a dual encoder-decoder structure to model the generation of responses in both positive and negative side based on the changes of the user's emotion status in the conversation.

Content Selection Network for Document-grounded Retrieval-based Chatbots

1 code implementation21 Jan 2021 Yutao Zhu, Jian-Yun Nie, Kun Zhou, Pan Du, Zhicheng Dou

It is thus crucial to select the part of document content relevant to the current conversation context.

Retrieval

Contrastive Coding for Active Learning Under Class Distribution Mismatch

no code implementations ICCV 2021 Pan Du, Suyun Zhao, Hui Chen, Shuwen Chai, Hong Chen, Cuiping Li

However, its performance deteriorates under class distribution mismatch, wherein the unlabeled data contain many samples out of the class distribution of labeled data.

Active Learning Contrastive Learning

Meta-Learning for Neural Relation Classification with Distant Supervision

no code implementations26 Oct 2020 Zhenzhen Li, Jian-Yun Nie, Benyou Wang, Pan Du, Yuhan Zhang, Lixin Zou, Dongsheng Li

Distant supervision provides a means to create a large number of weakly labeled data at low cost for relation classification.

Classification General Classification +3

VGCN-BERT: Augmenting BERT with Graph Embedding for Text Classification

1 code implementation12 Apr 2020 Zhibin Lu, Pan Du, Jian-Yun Nie

Much progress has been made recently on text classification with methods based on neural networks.

General Classification Graph Embedding +3

DivGraphPointer: A Graph Pointer Network for Extracting Diverse Keyphrases

no code implementations19 May 2019 Zhiqing Sun, Jian Tang, Pan Du, Zhi-Hong Deng, Jian-Yun Nie

Furthermore, we propose a diversified point network to generate a set of diverse keyphrases out of the word graph in the decoding process.

Document Summarization Information Retrieval +2

A Long-Short Demands-Aware Model for Next-Item Recommendation

no code implementations12 Feb 2019 Ting Bai, Pan Du, Wayne Xin Zhao, Ji-Rong Wen, Jian-Yun Nie

Recommending the right products is the central problem in recommender systems, but the right products should also be recommended at the right time to meet the demands of users, so as to maximize their values.

Recommendation Systems

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