Search Results for author: Xiuyi Chen

Found 17 papers, 7 papers with code

Bridging the Gap between Prior and Posterior Knowledge Selection for Knowledge-Grounded Dialogue Generation

no code implementations EMNLP 2020 Xiuyi Chen, Fandong Meng, Peng Li, Feilong Chen, Shuang Xu, Bo Xu, Jie zhou

Here, we deal with these issues on two aspects: (1) We enhance the prior selection module with the necessary posterior information obtained from the specially designed Posterior Information Prediction Module (PIPM); (2) We propose a Knowledge Distillation Based Training Strategy (KDBTS) to train the decoder with the knowledge selected from the prior distribution, removing the exposure bias of knowledge selection.

Dialogue Generation Knowledge Distillation

Learning to Use Tools via Cooperative and Interactive Agents

no code implementations5 Mar 2024 Zhengliang Shi, Shen Gao, Xiuyi Chen, Lingyong Yan, Haibo Shi, Dawei Yin, Zhumin Chen, Pengjie Ren, Suzan Verberne, Zhaochun Ren

Tool learning empowers large language models (LLMs) as agents to use external tools to extend their capability.

Continual Named Entity Recognition without Catastrophic Forgetting

1 code implementation23 Oct 2023 Duzhen Zhang, Wei Cong, Jiahua Dong, Yahan Yu, Xiuyi Chen, Yonggang Zhang, Zhen Fang

This issue is intensified in CNER due to the consolidation of old entity types from previous steps into the non-entity type at each step, leading to what is known as the semantic shift problem of the non-entity type.

Continual Named Entity Recognition named-entity-recognition +1

Task Relation Distillation and Prototypical Pseudo Label for Incremental Named Entity Recognition

1 code implementation17 Aug 2023 Duzhen Zhang, Hongliu Li, Wei Cong, Rongtao Xu, Jiahua Dong, Xiuyi Chen

However, INER faces the challenge of catastrophic forgetting specific for incremental learning, further aggravated by background shift (i. e., old and future entity types are labeled as the non-entity type in the current task).

Incremental Learning named-entity-recognition +3

Matching-based Term Semantics Pre-training for Spoken Patient Query Understanding

1 code implementation2 Mar 2023 Zefa Hu, Xiuyi Chen, Haoran Wu, Minglun Han, Ziyi Ni, Jing Shi, Shuang Xu, Bo Xu

Medical Slot Filling (MSF) task aims to convert medical queries into structured information, playing an essential role in diagnosis dialogue systems.

slot-filling Slot Filling

Crucial Semantic Classifier-based Adversarial Learning for Unsupervised Domain Adaptation

no code implementations3 Feb 2023 Yumin Zhang, Yajun Gao, Hongliu Li, Ating Yin, Duzhen Zhang, Xiuyi Chen

Unsupervised Domain Adaptation (UDA), which aims to explore the transferrable features from a well-labeled source domain to a related unlabeled target domain, has been widely progressed.

Unsupervised Domain Adaptation

Consecutive Knowledge Meta-Adaptation Learning for Unsupervised Medical Diagnosis

no code implementations21 Sep 2022 Yumin Zhang, Yawen Hou, Xiuyi Chen, Hongyuan Yu, Long Xia

In the SAP, the semantic knowledge learned from the source lesion domain is transferred to consecutive target lesion domains.

Medical Diagnosis Unsupervised Domain Adaptation

HiVLP: Hierarchical Vision-Language Pre-Training for Fast Image-Text Retrieval

no code implementations24 May 2022 Feilong Chen, Xiuyi Chen, Jiaxin Shi, Duzhen Zhang, Jianlong Chang, Qi Tian

It also achieves about +4. 9 AR on COCO and +3. 8 AR on Flickr30K than LightingDot and achieves comparable performance with the state-of-the-art (SOTA) fusion-based model METER.

Cross-Modal Retrieval Retrieval +1

Improving Cross-Modal Understanding in Visual Dialog via Contrastive Learning

no code implementations15 Apr 2022 Feilong Chen, Xiuyi Chen, Shuang Xu, Bo Xu

Visual Dialog is a challenging vision-language task since the visual dialog agent needs to answer a series of questions after reasoning over both the image content and dialog history.

Contrastive Learning Question Answering +2

Multimodal Incremental Transformer with Visual Grounding for Visual Dialogue Generation

1 code implementation Findings (ACL) 2021 Feilong Chen, Fandong Meng, Xiuyi Chen, Peng Li, Jie zhou

Visual dialogue is a challenging task since it needs to answer a series of coherent questions on the basis of understanding the visual environment.

Dialogue Generation Visual Grounding

GoG: Relation-aware Graph-over-Graph Network for Visual Dialog

no code implementations Findings (ACL) 2021 Feilong Chen, Xiuyi Chen, Fandong Meng, Peng Li, Jie zhou

Specifically, GoG consists of three sequential graphs: 1) H-Graph, which aims to capture coreference relations among dialog history; 2) History-aware Q-Graph, which aims to fully understand the question through capturing dependency relations between words based on coreference resolution on the dialog history; and 3) Question-aware I-Graph, which aims to capture the relations between objects in an image based on fully question representation.

coreference-resolution Implicit Relations +2

Learning to Ground Visual Objects for Visual Dialog

no code implementations Findings (EMNLP) 2021 Feilong Chen, Xiuyi Chen, Can Xu, Daxin Jiang

Specifically, a posterior distribution over visual objects is inferred from both context (history and questions) and answers, and it ensures the appropriate grounding of visual objects during the training process.

Visual Dialog

Knowledge Aware Emotion Recognition in Textual Conversations via Multi-Task Incremental Transformer

no code implementations COLING 2020 Duzhen Zhang, Xiuyi Chen, Shuang Xu, Bo Xu

For one thing, speakers often rely on the context and commonsense knowledge to express emotions; for another, most utterances contain neutral emotion in conversations, as a result, the confusion between a few non-neutral utterances and much more neutral ones restrains the emotion recognition performance.

Emotion Recognition Graph Attention +3

A Working Memory Model for Task-oriented Dialog Response Generation

no code implementations ACL 2019 Xiuyi Chen, Jiaming Xu, Bo Xu

Our WMM2Seq adopts a working memory to interact with two separated long-term memories, which are the episodic memory for memorizing dialog history and the semantic memory for storing KB tuples.

Response Generation World Knowledge

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