Search Results for author: Wenhu Chen

Found 37 papers, 25 papers with code

HybriDialogue: An Information-Seeking Dialogue Dataset Grounded on Tabular and Textual Data

no code implementations Findings (ACL) 2022 Kai Nakamura, Sharon Levy, Yi-Lin Tuan, Wenhu Chen, William Yang Wang

A pressing challenge in current dialogue systems is to successfully converse with users on topics with information distributed across different modalities.

Response Generation

ContraQA: Question Answering under Contradicting Contexts

no code implementations15 Oct 2021 Liangming Pan, Wenhu Chen, Min-Yen Kan, William Yang Wang

With a rise in false, inaccurate, and misleading information in propaganda, news, and social media, real-world Question Answering (QA) systems face the challenges of synthesizing and reasoning over contradicting information to derive correct answers.

Misinformation Question Answering

Task-adaptive Pre-training and Self-training are Complementary for Natural Language Understanding

no code implementations Findings (EMNLP) 2021 Shiyang Li, Semih Yavuz, Wenhu Chen, Xifeng Yan

Task-adaptive pre-training (TAPT) and Self-training (ST) have emerged as the major semi-supervised approaches to improve natural language understanding (NLU) tasks with massive amount of unlabeled data.

Named Entity Recognition Natural Language Inference +3

FinQA: A Dataset of Numerical Reasoning over Financial Data

1 code implementation EMNLP 2021 Zhiyu Chen, Wenhu Chen, Charese Smiley, Sameena Shah, Iana Borova, Dylan Langdon, Reema Moussa, Matt Beane, Ting-Hao Huang, Bryan Routledge, William Yang Wang

In contrast to existing tasks on general domain, the finance domain includes complex numerical reasoning and understanding of heterogeneous representations.

Question Answering

Local Explanation of Dialogue Response Generation

1 code implementation NeurIPS 2021 Yi-Lin Tuan, Connor Pryor, Wenhu Chen, Lise Getoor, William Yang Wang

To gain insights into the reasoning process of a generation model, we propose a new method, local explanation of response generation (LERG) that regards the explanations as the mutual interaction of segments in input and output sentences.

Response Generation Text Generation

Counterfactual Maximum Likelihood Estimation for Training Deep Networks

1 code implementation NeurIPS 2021 Xinyi Wang, Wenhu Chen, Michael Saxon, William Yang Wang

Although deep learning models have driven state-of-the-art performance on a wide array of tasks, they are prone to spurious correlations that should not be learned as predictive clues.

Domain Generalization Image Captioning +1

A Systematic Investigation of KB-Text Embedding Alignment at Scale

1 code implementation ACL 2021 Vardaan Pahuja, Yu Gu, Wenhu Chen, Mehdi Bahrami, Lei Liu, Wei-Peng Chen, Yu Su

Knowledge bases (KBs) and text often contain complementary knowledge: KBs store structured knowledge that can support long range reasoning, while text stores more comprehensive and timely knowledge in an unstructured way.

Link Prediction

Zero-shot Fact Verification by Claim Generation

1 code implementation ACL 2021 Liangming Pan, Wenhu Chen, Wenhan Xiong, Min-Yen Kan, William Yang Wang

However, for each new domain that requires fact verification, creating a dataset by manually writing claims and linking them to their supporting evidence is expensive.

Fact Verification

Open Question Answering over Tables and Text

1 code implementation ICLR 2021 Wenhu Chen, Ming-Wei Chang, Eva Schlinger, William Wang, William W. Cohen

In open question answering (QA), the answer to a question is produced by retrieving and then analyzing documents that might contain answers to the question.

Question Answering

Modeling Token-level Uncertainty to Learn Unknown Concepts in SLU via Calibrated Dirichlet Prior RNN

no code implementations16 Oct 2020 Yilin Shen, Wenhu Chen, Hongxia Jin

We design a Dirichlet Prior RNN to model high-order uncertainty by degenerating as softmax layer for RNN model training.

Slot Filling Spoken Language Understanding

KGPT: Knowledge-Grounded Pre-Training for Data-to-Text Generation

1 code implementation EMNLP 2020 Wenhu Chen, Yu Su, Xifeng Yan, William Yang Wang

We propose a knowledge-grounded pre-training (KGPT), which consists of two parts, 1) a general knowledge-grounded generation model to generate knowledge-enriched text.

KG-to-Text Generation Transfer Learning

Logical Natural Language Generation from Open-Domain Tables

1 code implementation ACL 2020 Wenhu Chen, Jianshu Chen, Yu Su, Zhiyu Chen, William Yang Wang

To facilitate the study of the proposed logical NLG problem, we use the existing TabFact dataset \cite{chen2019tabfact} featured with a wide range of logical/symbolic inferences as our testbed, and propose new automatic metrics to evaluate the fidelity of generation models w. r. t.\ logical inference.

Text Generation

VIOLIN: A Large-Scale Dataset for Video-and-Language Inference

1 code implementation CVPR 2020 Jingzhou Liu, Wenhu Chen, Yu Cheng, Zhe Gan, Licheng Yu, Yiming Yang, Jingjing Liu

We introduce a new task, Video-and-Language Inference, for joint multimodal understanding of video and text.

Meta Module Network for Compositional Visual Reasoning

1 code implementation8 Oct 2019 Wenhu Chen, Zhe Gan, Linjie Li, Yu Cheng, William Wang, Jingjing Liu

To design a more powerful NMN architecture for practical use, we propose Meta Module Network (MMN) centered on a novel meta module, which can take in function recipes and morph into diverse instance modules dynamically.

Visual Reasoning

TabFact: A Large-scale Dataset for Table-based Fact Verification

1 code implementation ICLR 2020 Wenhu Chen, Hongmin Wang, Jianshu Chen, Yunkai Zhang, Hong Wang, Shiyang Li, Xiyou Zhou, William Yang Wang

To this end, we construct a large-scale dataset called TabFact with 16k Wikipedia tables as the evidence for 118k human-annotated natural language statements, which are labeled as either ENTAILED or REFUTED.

Fact Checking Fact Verification +3

Enhancing the Locality and Breaking the Memory Bottleneck of Transformer on Time Series Forecasting

2 code implementations NeurIPS 2019 Shiyang Li, Xiaoyong Jin, Yao Xuan, Xiyou Zhou, Wenhu Chen, Yu-Xiang Wang, Xifeng Yan

Time series forecasting is an important problem across many domains, including predictions of solar plant energy output, electricity consumption, and traffic jam situation.

Ranked #27 on Image Generation on ImageNet 64x64 (Bits per dim metric)

Time Series Time Series Forecasting

Global Textual Relation Embedding for Relational Understanding

1 code implementation ACL 2019 Zhiyu Chen, Hanwen Zha, Honglei Liu, Wenhu Chen, Xifeng Yan, Yu Su

Pre-trained embeddings such as word embeddings and sentence embeddings are fundamental tools facilitating a wide range of downstream NLP tasks.

Action Classification Sentence Embeddings +1

Few-Shot NLG with Pre-Trained Language Model

1 code implementation ACL 2020 Zhiyu Chen, Harini Eavani, Wenhu Chen, Yinyin Liu, William Yang Wang

Neural-based end-to-end approaches to natural language generation (NLG) from structured data or knowledge are data-hungry, making their adoption for real-world applications difficult with limited data.

Few-Shot Learning Language Modelling +1

A Variational Dirichlet Framework for Out-of-Distribution Detection

no code implementations ICLR 2019 Wenhu Chen, Yilin Shen, Hongxia Jin, William Wang

With the recently rapid development in deep learning, deep neural networks have been widely adopted in many real-life applications.

Out-of-Distribution Detection Variational Inference

Approximate Distribution Matching for Sequence-to-Sequence Learning

no code implementations24 Aug 2018 Wenhu Chen, Guanlin Li, Shujie Liu, Zhirui Zhang, Mu Li, Ming Zhou

Then, we interpret sequence-to-sequence learning as learning a transductive model to transform the source local latent distributions to match their corresponding target distributions.

Image Captioning Machine Translation +1

XL-NBT: A Cross-lingual Neural Belief Tracking Framework

1 code implementation EMNLP 2018 Wenhu Chen, Jianshu Chen, Yu Su, Xin Wang, Dong Yu, Xifeng Yan, William Yang Wang

Then, we pre-train a state tracker for the source language as a teacher, which is able to exploit easy-to-access parallel data.

Transfer Learning

Generative Bridging Network for Neural Sequence Prediction

no code implementations NAACL 2018 Wenhu Chen, Guanlin Li, Shuo Ren, Shujie Liu, Zhirui Zhang, Mu Li, Ming Zhou

In order to alleviate data sparsity and overfitting problems in maximum likelihood estimation (MLE) for sequence prediction tasks, we propose the Generative Bridging Network (GBN), in which a novel bridge module is introduced to assist the training of the sequence prediction model (the generator network).

Abstractive Text Summarization Image Captioning +4

Triangular Architecture for Rare Language Translation

no code implementations ACL 2018 Shuo Ren, Wenhu Chen, Shujie Liu, Mu Li, Ming Zhou, Shuai Ma

Neural Machine Translation (NMT) performs poor on the low-resource language pair $(X, Z)$, especially when $Z$ is a rare language.

Machine Translation Translation

No Metrics Are Perfect: Adversarial Reward Learning for Visual Storytelling

2 code implementations ACL 2018 Xin Wang, Wenhu Chen, Yuan-Fang Wang, William Yang Wang

Though impressive results have been achieved in visual captioning, the task of generating abstract stories from photo streams is still a little-tapped problem.

Image Captioning Visual Storytelling

Variational Knowledge Graph Reasoning

no code implementations NAACL 2018 Wenhu Chen, Wenhan Xiong, Xifeng Yan, William Wang

Inferring missing links in knowledge graphs (KG) has attracted a lot of attention from the research community.

Frame Knowledge Graphs +2

Generative Bridging Network in Neural Sequence Prediction

no code implementations28 Jun 2017 Wenhu Chen, Guanlin Li, Shuo Ren, Shujie Liu, Zhirui Zhang, Mu Li, Ming Zhou

In order to alleviate data sparsity and overfitting problems in maximum likelihood estimation (MLE) for sequence prediction tasks, we propose the Generative Bridging Network (GBN), in which a novel bridge module is introduced to assist the training of the sequence prediction model (the generator network).

Abstractive Text Summarization Language Modelling +2

A Semi-supervised Framework for Image Captioning

1 code implementation16 Nov 2016 Wenhu Chen, Aurelien Lucchi, Thomas Hofmann

We here propose a novel way of using such textual data by artificially generating missing visual information.

Image Captioning Word Embeddings

Guided Alignment Training for Topic-Aware Neural Machine Translation

2 code implementations AMTA 2016 Wenhu Chen, Evgeny Matusov, Shahram Khadivi, Jan-Thorsten Peter

In this paper, we propose an effective way for biasing the attention mechanism of a sequence-to-sequence neural machine translation (NMT) model towards the well-studied statistical word alignment models.

Domain Adaptation Machine Translation +2

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