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We present FactPEGASUS, an abstractive summarization model that addresses the problem of factuality during pre-training and fine-tuning: (1) We augment the sentence selection strategy of PEGASUS's (Zhang et al., 2020) pre-training objective…

Computation and Language · Computer Science 2022-05-17 David Wan , Mohit Bansal

Current debiasing approaches often result a degradation in model capabilities such as factual accuracy and knowledge retention. Through systematic evaluation across multiple benchmarks, we demonstrate that existing debiasing methods face…

Machine Learning · Computer Science 2025-05-27 Buse Sibel Korkmaz , Rahul Nair , Elizabeth M. Daly , Antonio del Rio Chanona

Recent breakthroughs in self-supervised learning show that such algorithms learn visual representations that can be transferred better to unseen tasks than joint-training methods relying on task-specific supervision. In this paper, we found…

Machine Learning · Computer Science 2021-06-29 Hyuntak Cha , Jaeho Lee , Jinwoo Shin

Reinforcement learning with evaluation metrics as rewards is widely used to enhance specific capabilities of language models. However, for tasks such as factually consistent summarisation, existing metrics remain underdeveloped, limiting…

Computation and Language · Computer Science 2026-05-27 Yuxuan Ye , Raul Santos-Rodriguez , Edwin Simpson

Contrastive learning is an approach to representation learning that utilizes naturally occurring similar and dissimilar pairs of data points to find useful embeddings of data. In the context of document classification under topic modeling…

Machine Learning · Computer Science 2020-03-05 Christopher Tosh , Akshay Krishnamurthy , Daniel Hsu

Despite being able to generate fluent and grammatical text, current Seq2Seq summarization models still suffering from the unfaithful generation problem. In this paper, we study the faithfulness of existing systems from a new perspective of…

Computation and Language · Computer Science 2022-11-02 Wenhao Wu , Wei Li , Jiachen Liu , Xinyan Xiao , Ziqiang Cao , Sujian Li , Hua Wu

In neutrino physics, analyses often depend on large simulated datasets, making it essential for models to generalise effectively to real-world detector data. Contrastive learning, a well-established technique in deep learning, offers a…

High Energy Physics - Experiment · Physics 2025-05-23 Alex Wilkinson , Radi Radev , Saul Alonso-Monsalve

Quotes are critical for establishing credibility in news articles. A direct quote enclosed in quotation marks has a strong visual appeal and is a sign of a reliable citation. Unfortunately, this journalistic practice is not strictly…

Computation and Language · Computer Science 2023-02-10 Seonyeong Song , Hyeonho Song , Kunwoo Park , Jiyoung Han , Meeyoung Cha

Unlike extractive summarization, abstractive summarization has to fuse different parts of the source text, which inclines to create fake facts. Our preliminary study reveals nearly 30% of the outputs from a state-of-the-art neural…

Information Retrieval · Computer Science 2017-11-15 Ziqiang Cao , Furu Wei , Wenjie Li , Sujian Li

Factual inconsistencies in generated summaries severely limit the practical applications of abstractive dialogue summarization. Although significant progress has been achieved by using pre-trained models, substantial amounts of hallucinated…

Computation and Language · Computer Science 2023-05-10 Xiangru Tang , Arjun Nair , Borui Wang , Bingyao Wang , Jai Desai , Aaron Wade , Haoran Li , Asli Celikyilmaz , Yashar Mehdad , Dragomir Radev

Despite significant progress has been achieved in text summarization, factual inconsistency in generated summaries still severely limits its practical applications. Among the key factors to ensure factual consistency, a reliable automatic…

Computation and Language · Computer Science 2021-09-09 Yuexiang Xie , Fei Sun , Yang Deng , Yaliang Li , Bolin Ding

We introduce a general framework for abstractive summarization with factual consistency and distinct modeling of the narrative flow in an output summary. Our work addresses current limitations of models for abstractive summarization that…

Computation and Language · Computer Science 2021-04-12 Saadia Gabriel , Antoine Bosselut , Jeff Da , Ari Holtzman , Jan Buys , Kyle Lo , Asli Celikyilmaz , Yejin Choi

Abstractive summarization systems based on pretrained language models often generate coherent but factually inconsistent sentences. In this paper, we present a counterfactual data augmentation approach where we augment data with perturbed…

Computation and Language · Computer Science 2022-05-26 Dheeraj Rajagopal , Siamak Shakeri , Cicero Nogueira dos Santos , Eduard Hovy , Chung-Ching Chang

The goal of multimodal summarization is to extract the most important information from different modalities to form output summaries. Unlike the unimodal summarization, the multimodal summarization task explicitly leverages cross-modal…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Bo He , Jun Wang , Jielin Qiu , Trung Bui , Abhinav Shrivastava , Zhaowen Wang

Text semantic matching requires nuanced understanding of both structural relationships and fine-grained semantic distinctions. While pre-trained language models excel at capturing token-level interactions, they often overlook hierarchical…

Computation and Language · Computer Science 2025-09-03 Chao Xue , Ziyuan Gao

Neural abstractive summarization systems have achieved promising progress, thanks to the availability of large-scale datasets and models pre-trained with self-supervised methods. However, ensuring the factual consistency of the generated…

Computation and Language · Computer Science 2021-04-05 Meng Cao , Yue Dong , Jiapeng Wu , Jackie Chi Kit Cheung

Contrastive pretraining can substantially increase model generalisation and downstream performance. However, the quality of the learned representations is highly dependent on the data augmentation strategy applied to generate positive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Mélanie Roschewitz , Fabio De Sousa Ribeiro , Tian Xia , Galvin Khara , Ben Glocker

Opinion summarization focuses on generating summaries that reflect popular subjective information expressed in multiple online reviews. While generated summaries offer general and concise information about a particular hotel or product, the…

Computation and Language · Computer Science 2022-04-19 Hayate Iso , Xiaolan Wang , Stefanos Angelidis , Yoshihiko Suhara

Video-grounded dialogue systems aim to integrate video understanding and dialogue understanding to generate responses that are relevant to both the dialogue and video context. Most existing approaches employ deep learning models and have…

Machine Learning · Computer Science 2023-08-08 Hung Le , Nancy F. Chen , Steven C. H. Hoi

Humans perceive the world through multisensory integration, blending the information of different modalities to adapt their behavior. Contrastive learning offers an appealing solution for multimodal self-supervised learning. Indeed, by…

Machine Learning · Computer Science 2025-03-06 Benoit Dufumier , Javiera Castillo-Navarro , Devis Tuia , Jean-Philippe Thiran