Search Results for author: Chien-Sheng Wu

Found 60 papers, 36 papers with code

Lexical Repetitions Lead to Rote Learning: Unveiling the Impact of Lexical Overlap in Train and Test Reference Summaries

no code implementations15 Nov 2023 Prafulla Kumar Choubey, Alexander R. Fabbri, Caiming Xiong, Chien-Sheng Wu

Ideal summarization models should generalize to novel summary-worthy content without remembering reference training summaries by rote.

Benchmarking Generation and Evaluation Capabilities of Large Language Models for Instruction Controllable Summarization

1 code implementation15 Nov 2023 Yixin Liu, Alexander R. Fabbri, Jiawen Chen, Yilun Zhao, Simeng Han, Shafiq Joty, PengFei Liu, Dragomir Radev, Chien-Sheng Wu, Arman Cohan

Our study reveals that instruction controllable text summarization remains a challenging task for LLMs, since (1) all LLMs evaluated still make factual and other types of errors in their summaries; (2) all LLM-based evaluation methods cannot achieve a strong alignment with human annotators when judging the quality of candidate summaries; (3) different LLMs show large performance gaps in summary generation and evaluation.

Benchmarking Text Summarization

Are You Sure? Challenging LLMs Leads to Performance Drops in The FlipFlop Experiment

no code implementations14 Nov 2023 Philippe Laban, Lidiya Murakhovs'ka, Caiming Xiong, Chien-Sheng Wu

The interactive nature of Large Language Models (LLMs) theoretically allows models to refine and improve their answers, yet systematic analysis of the multi-turn behavior of LLMs remains limited.

Beyond the Chat: Executable and Verifiable Text-Editing with LLMs

no code implementations27 Sep 2023 Philippe Laban, Jesse Vig, Marti A. Hearst, Caiming Xiong, Chien-Sheng Wu

Conversational interfaces powered by Large Language Models (LLMs) have recently become a popular way to obtain feedback during document editing.

Art or Artifice? Large Language Models and the False Promise of Creativity

no code implementations25 Sep 2023 Tuhin Chakrabarty, Philippe Laban, Divyansh Agarwal, Smaranda Muresan, Chien-Sheng Wu

Inspired by the Torrance Test of Creative Thinking (TTCT), which measures creativity as a process, we use the Consensual Assessment Technique [3] and propose the Torrance Test of Creative Writing (TTCW) to evaluate creativity as a product.

XGen-7B Technical Report

1 code implementation7 Sep 2023 Erik Nijkamp, Tian Xie, Hiroaki Hayashi, Bo Pang, Congying Xia, Chen Xing, Jesse Vig, Semih Yavuz, Philippe Laban, Ben Krause, Senthil Purushwalkam, Tong Niu, Wojciech Kryściński, Lidiya Murakhovs'ka, Prafulla Kumar Choubey, Alex Fabbri, Ye Liu, Rui Meng, Lifu Tu, Meghana Bhat, Chien-Sheng Wu, Silvio Savarese, Yingbo Zhou, Shafiq Joty, Caiming Xiong

Most open-source LLMs, on the other hand, are limited in their ability to support longer sequence lengths, which is a key requirement for many tasks that require inference over an input context.

2k 8k

SWiPE: A Dataset for Document-Level Simplification of Wikipedia Pages

1 code implementation30 May 2023 Philippe Laban, Jesse Vig, Wojciech Kryscinski, Shafiq Joty, Caiming Xiong, Chien-Sheng Wu

Text simplification research has mostly focused on sentence-level simplification, even though many desirable edits - such as adding relevant background information or reordering content - may require document-level context.

Sentence Text Simplification

LLMs as Factual Reasoners: Insights from Existing Benchmarks and Beyond

1 code implementation23 May 2023 Philippe Laban, Wojciech Kryściński, Divyansh Agarwal, Alexander R. Fabbri, Caiming Xiong, Shafiq Joty, Chien-Sheng Wu

To address this, we propose a new protocol for inconsistency detection benchmark creation and implement it in a 10-domain benchmark called SummEdits.

Misinformation

Towards Interpretable and Efficient Automatic Reference-Based Summarization Evaluation

1 code implementation7 Mar 2023 Yixin Liu, Alexander R. Fabbri, Yilun Zhao, PengFei Liu, Shafiq Joty, Chien-Sheng Wu, Caiming Xiong, Dragomir Radev

Interpretability and efficiency are two important considerations for the adoption of neural automatic metrics.

Designing and Evaluating Interfaces that Highlight News Coverage Diversity Using Discord Questions

no code implementations17 Feb 2023 Philippe Laban, Chien-Sheng Wu, Lidiya Murakhovs'ka, Xiang 'Anthony' Chen, Caiming Xiong

In a second usability study, we developed and implemented a reading exercise with 95 novice news readers to measure exposure to coverage diversity.

Socratic Pretraining: Question-Driven Pretraining for Controllable Summarization

1 code implementation20 Dec 2022 Artidoro Pagnoni, Alexander R. Fabbri, Wojciech Kryściński, Chien-Sheng Wu

In long document controllable summarization, where labeled data is scarce, pretrained models struggle to adapt to the task and effectively respond to user queries.

Question Generation Question-Generation

Improving Factual Consistency in Summarization with Compression-Based Post-Editing

1 code implementation11 Nov 2022 Alexander R. Fabbri, Prafulla Kumar Choubey, Jesse Vig, Chien-Sheng Wu, Caiming Xiong

We propose to use sentence-compression data to train the post-editing model to take a summary with extrinsic entity errors marked with special tokens and output a compressed, well-formed summary with those errors removed.

Informativeness Sentence +1

Model ensemble instead of prompt fusion: a sample-specific knowledge transfer method for few-shot prompt tuning

no code implementations23 Oct 2022 Xiangyu Peng, Chen Xing, Prafulla Kumar Choubey, Chien-Sheng Wu, Caiming Xiong

Through this way, SESoM inherits the superior generalization of model ensemble approaches and simultaneously captures the sample-specific competence of each source prompt.

Transfer Learning

Near-Negative Distinction: Giving a Second Life to Human Evaluation Datasets

1 code implementation13 May 2022 Philippe Laban, Chien-Sheng Wu, Wenhao Liu, Caiming Xiong

Precisely assessing the progress in natural language generation (NLG) tasks is challenging, and human evaluation to establish a preference in a model's output over another is often necessary.

nlg evaluation Question Answering +3

Structure Extraction in Task-Oriented Dialogues with Slot Clustering

2 code implementations28 Feb 2022 Liang Qiu, Chien-Sheng Wu, Wenhao Liu, Caiming Xiong

Extracting structure information from dialogue data can help us better understand user and system behaviors.

Clustering Data Augmentation +1

Exploring Neural Models for Query-Focused Summarization

1 code implementation Findings (NAACL) 2022 Jesse Vig, Alexander R. Fabbri, Wojciech Kryściński, Chien-Sheng Wu, Wenhao Liu

Query-focused summarization (QFS) aims to produce summaries that answer particular questions of interest, enabling greater user control and personalization.

Query-focused Summarization Transfer Learning

CaPE: Contrastive Parameter Ensembling for Reducing Hallucination in Abstractive Summarization

no code implementations14 Oct 2021 Prafulla Kumar Choubey, Alexander R. Fabbri, Jesse Vig, Chien-Sheng Wu, Wenhao Liu, Nazneen Fatema Rajani

Then, we fine-tune a base summarization model, which is trained on all training samples, on the clean (noisy) subset to obtain an \textit{expert} (\textit{anti-expert}) model.

Abstractive Text Summarization Hallucination +1

QAConv: Question Answering on Informative Conversations

1 code implementation ACL 2022 Chien-Sheng Wu, Andrea Madotto, Wenhao Liu, Pascale Fung, Caiming Xiong

This paper introduces QAConv, a new question answering (QA) dataset that uses conversations as a knowledge source.

Question Answering

Open-Retrieval Conversational Machine Reading

1 code implementation17 Feb 2021 Yifan Gao, Jingjing Li, Chien-Sheng Wu, Michael R. Lyu, Irwin King

On our created OR-ShARC dataset, MUDERN achieves the state-of-the-art performance, outperforming existing single-passage conversational machine reading models as well as a new multi-passage conversational machine reading baseline by a large margin.

Discourse Segmentation Reading Comprehension +1

Probing Task-Oriented Dialogue Representation from Language Models

no code implementations EMNLP 2020 Chien-Sheng Wu, Caiming Xiong

This paper investigates pre-trained language models to find out which model intrinsically carries the most informative representation for task-oriented dialogue tasks.

Clustering Language Modelling +1

Discern: Discourse-Aware Entailment Reasoning Network for Conversational Machine Reading

1 code implementation EMNLP 2020 Yifan Gao, Chien-Sheng Wu, Jingjing Li, Shafiq Joty, Steven C. H. Hoi, Caiming Xiong, Irwin King, Michael R. Lyu

Based on the learned EDU and entailment representations, we either reply to the user our final decision "yes/no/irrelevant" of the initial question, or generate a follow-up question to inquiry more information.

Decision Making Discourse Segmentation +3

GraPPa: Grammar-Augmented Pre-Training for Table Semantic Parsing

1 code implementation ICLR 2021 Tao Yu, Chien-Sheng Wu, Xi Victoria Lin, Bailin Wang, Yi Chern Tan, Xinyi Yang, Dragomir Radev, Richard Socher, Caiming Xiong

We present GraPPa, an effective pre-training approach for table semantic parsing that learns a compositional inductive bias in the joint representations of textual and tabular data.

Inductive Bias Language Modelling +3

EMT: Explicit Memory Tracker with Coarse-to-Fine Reasoning for Conversational Machine Reading

1 code implementation26 May 2020 Yifan Gao, Chien-Sheng Wu, Shafiq Joty, Caiming Xiong, Richard Socher, Irwin King, Michael R. Lyu, Steven C. H. Hoi

The goal of conversational machine reading is to answer user questions given a knowledge base text which may require asking clarification questions.

Decision Making Reading Comprehension +1

TOD-BERT: Pre-trained Natural Language Understanding for Task-Oriented Dialogue

1 code implementation EMNLP 2020 Chien-Sheng Wu, Steven Hoi, Richard Socher, Caiming Xiong

The underlying difference of linguistic patterns between general text and task-oriented dialogue makes existing pre-trained language models less useful in practice.

Dialogue State Tracking Intent Detection +3

Attention over Parameters for Dialogue Systems

no code implementations7 Jan 2020 Andrea Madotto, Zhaojiang Lin, Chien-Sheng Wu, Jamin Shin, Pascale Fung

Dialogue systems require a great deal of different but complementary expertise to assist, inform, and entertain humans.

Goal-Oriented Dialogue Systems

Getting To Know You: User Attribute Extraction from Dialogues

1 code implementation LREC 2020 Chien-Sheng Wu, Andrea Madotto, Zhaojiang Lin, Peng Xu, Pascale Fung

User attributes provide rich and useful information for user understanding, yet structured and easy-to-use attributes are often sparsely populated.

Attribute Attribute Extraction +1

Personalizing Dialogue Agents via Meta-Learning

1 code implementation ACL 2019 Zhaojiang Lin, Andrea Madotto, Chien-Sheng Wu, Pascale Fung

Existing personalized dialogue models use human designed persona descriptions to improve dialogue consistency.

Dialogue Generation Meta-Learning

Learning to Memorize in Neural Task-Oriented Dialogue Systems

no code implementations19 May 2019 Chien-Sheng Wu

Mem2Seq is the first model to combine multi-hop memory attention with the idea of the copy mechanism.

Dialogue State Tracking Multi-domain Dialogue State Tracking +2

Towards End-to-end Automatic Code-Switching Speech Recognition

no code implementations30 Oct 2018 Genta Indra Winata, Andrea Madotto, Chien-Sheng Wu, Pascale Fung

Speech recognition in mixed language has difficulties to adapt end-to-end framework due to the lack of data and overlapping phone sets, for example in words such as "one" in English and "w\`an" in Chinese.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +2

Zara: A Virtual Interactive Dialogue System Incorporating Emotion, Sentiment and Personality Recognition

no code implementations COLING 2016 Pascale Fung, Anik Dey, Farhad Bin Siddique, Ruixi Lin, Yang Yang, Dario Bertero, Yan Wan, Ricky Ho Yin Chan, Chien-Sheng Wu

Zara, or {`}Zara the Supergirl{'} is a virtual robot, that can exhibit empathy while interacting with an user, with the aid of its built in facial and emotion recognition, sentiment analysis, and speech module.

Emotion Recognition Feature Engineering +3

Towards Empathetic Human-Robot Interactions

no code implementations13 May 2016 Pascale Fung, Dario Bertero, Yan Wan, Anik Dey, Ricky Ho Yin Chan, Farhad Bin Siddique, Yang Yang, Chien-Sheng Wu, Ruixi Lin

Although research on empathetic robots is still in the early stage, we described our approach using signal processing techniques, sentiment analysis and machine learning algorithms to make robots that can "understand" human emotion.

Sentiment Analysis

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