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The increasing concern with misinformation has stimulated research efforts on automatic fact checking. The recently-released FEVER dataset introduced a benchmark fact-verification task in which a system is asked to verify a claim using…

Computation and Language · Computer Science 2018-11-20 Yixin Nie , Haonan Chen , Mohit Bansal

Automated fact extraction and verification is a challenging task that involves finding relevant evidence sentences from a reliable corpus to verify the truthfulness of a claim. Existing models either (i) concatenate all the evidence…

Computation and Language · Computer Science 2020-10-13 Shyam Subramanian , Kyumin Lee

The Fact Extraction and VERification (FEVER) shared task was launched to support the development of systems able to verify claims by extracting supporting or refuting facts from raw text. The shared task organizers provide a large-scale…

Information Retrieval · Computer Science 2019-05-10 Andreas Hanselowski , Hao Zhang , Zile Li , Daniil Sorokin , Benjamin Schiller , Claudia Schulz , Iryna Gurevych

Weakly-supervised text classification aims to induce text classifiers from only a few user-provided seed words. The vast majority of previous work assumes high-quality seed words are given. However, the expert-annotated seed words are…

Computation and Language · Computer Science 2021-04-21 Yiping Jin , Akshay Bhatia , Dittaya Wanvarie

Few-shot classification with foundation models (e.g., CLIP, DINOv2, PaLM-2) enables users to build an accurate classifier with a few labeled training samples (called support samples) for a classification task. However, an attacker could…

Cryptography and Security · Computer Science 2024-04-15 Yanting Wang , Wei Zou , Jinyuan Jia

Scientific document classification is a critical task and often involves many classes. However, collecting human-labeled data for many classes is expensive and usually leads to label-scarce scenarios. Moreover, recent work has shown that…

Computation and Language · Computer Science 2024-10-22 Tim Schopf , Alexander Blatzheim , Nektarios Machner , Florian Matthes

Motivated by the promising performance of pre-trained language models, we investigate BERT in an evidence retrieval and claim verification pipeline for the FEVER fact extraction and verification challenge. To this end, we propose to use two…

Computation and Language · Computer Science 2019-10-08 Amir Soleimani , Christof Monz , Marcel Worring

Few-shot learning aims to classify unseen classes with only a limited number of labeled data. Recent works have demonstrated that training models with a simple transfer learning strategy can achieve competitive results in few-shot…

Computer Vision and Pattern Recognition · Computer Science 2022-02-18 Jingquan Wang , Jing Xu , Yu Pan , Zenglin Xu

Sound Event Early Detection (SEED) is an essential task in recognizing the acoustic environments and soundscapes. However, most of the existing methods focus on the offline sound event detection, which suffers from the over-confidence issue…

Sound · Computer Science 2022-02-15 Xujiang Zhao , Xuchao Zhang , Wei Cheng , Wenchao Yu , Yuncong Chen , Haifeng Chen , Feng Chen

Fact verification (FV) is a challenging task which aims to verify a claim using multiple evidential sentences from trustworthy corpora, e.g., Wikipedia. Most existing approaches follow a three-step pipeline framework, including document…

Computation and Language · Computer Science 2022-04-25 Jiangui Chen , Ruqing Zhang , Jiafeng Guo , Yixing Fan , Xueqi Cheng

To mitigate the impact of the scarcity of labelled data on fact-checking systems, we focus on few-shot claim verification. Despite recent work on few-shot classification by proposing advanced language models, there is a dearth of research…

Computation and Language · Computer Science 2022-10-12 Xia Zeng , Arkaitz Zubiaga

Few-shot semantic segmentation aims to recognize novel classes with only very few labelled data. This challenging task requires mining of the relevant relationships between the query image and the support images. Previous works have…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Wei Ao , Shunyi Zheng , Yan Meng

Given a possibly false claim sentence, how can we automatically correct it with minimal editing? Existing methods either require a large number of pairs of false and corrected claims for supervised training or do not handle well errors…

Computation and Language · Computer Science 2023-02-24 Jiangjie Chen , Rui Xu , Wenxuan Zeng , Changzhi Sun , Lei Li , Yanghua Xiao

Few-shot classification consists of learning a predictive model that is able to effectively adapt to a new class, given only a few annotated samples. To solve this challenging problem, meta-learning has become a popular paradigm that…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Nikita Dvornik , Cordelia Schmid , Julien Mairal

Fact checking is a challenging task because verifying the truthfulness of a claim requires reasoning about multiple retrievable evidence. In this work, we present a method suitable for reasoning about the semantic-level structure of…

Computation and Language · Computer Science 2020-04-28 Wanjun Zhong , Jingjing Xu , Duyu Tang , Zenan Xu , Nan Duan , Ming Zhou , Jiahai Wang , Jian Yin

We tackle a novel few-shot learning challenge, which we call few-shot semantic edge detection, aiming to localize crisp boundaries of novel categories using only a few labeled samples. We also present a Class-Agnostic Few-shot Edge…

Computer Vision and Pattern Recognition · Computer Science 2020-03-19 Young-Hyun Park , Jun Seo , Jaekyun Moon

Weak feature representation problem has influenced the performance of few-shot classification task for a long time. To alleviate this problem, recent researchers build connections between support and query instances through embedding patch…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Jinxiang Lai , Siqian Yang , Junhong Zhou , Wenlong Wu , Xiaochen Chen , Jun Liu , Bin-Bin Gao , Chengjie Wang

Few-shot learning is a fundamental and challenging problem since it requires recognizing novel categories from only a few examples. The objects for recognition have multiple variants and can locate anywhere in images. Directly comparing…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Congqi Cao , Yanning Zhang

Judging the veracity of a sentence making one or more claims is an important and challenging problem with many dimensions. The recent FEVER task asked participants to classify input sentences as either SUPPORTED, REFUTED or NotEnoughInfo…

Computation and Language · Computer Science 2018-11-01 Ankur Padia , Francis Ferraro , Tim Finin

Few-shot named entity recognition (NER) aims to recognize novel named entities in low-resource domains utilizing existing knowledge. However, the present few-shot NER models assume that the labeled data are all clean without noise or…

Computation and Language · Computer Science 2023-12-14 Xiaojun Xue , Chunxia Zhang , Tianxiang Xu , Zhendong Niu