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相关论文: CMV-BERT: Contrastive multi-vocab pretraining of B…

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We propose a simple and general method to regularize the fine-tuning of Transformer-based encoders for text classification tasks. Specifically, during fine-tuning we generate adversarial examples by perturbing the word embeddings of the…

计算与语言 · 计算机科学 2022-02-21 Lin Pan , Chung-Wei Hang , Avirup Sil , Saloni Potdar

We propose a simple method to align multilingual contextual embeddings as a post-pretraining step for improved zero-shot cross-lingual transferability of the pretrained models. Using parallel data, our method aligns embeddings on the word…

计算与语言 · 计算机科学 2021-04-13 Lin Pan , Chung-Wei Hang , Haode Qi , Abhishek Shah , Saloni Potdar , Mo Yu

Recently, pre-trained transformer-based models have achieved great success in the task of definition generation (DG). However, previous encoder-decoder models lack effective representation learning to contain full semantic components of the…

计算与语言 · 计算机科学 2022-10-04 Hengyuan Zhang , Dawei Li , Shiping Yang , Yanran Li

We introduce a new language representation model called BERT, which stands for Bidirectional Encoder Representations from Transformers. Unlike recent language representation models, BERT is designed to pre-train deep bidirectional…

计算与语言 · 计算机科学 2019-05-28 Jacob Devlin , Ming-Wei Chang , Kenton Lee , Kristina Toutanova

The successful application of large pre-trained models such as BERT in natural language processing has attracted more attention from researchers. Since the BERT typically acts as an end-to-end black box, classification systems based on it…

计算与语言 · 计算机科学 2023-09-06 Shuai Jiang , Sayaka Kamei , Chen Li , Shengzhe Hou , Yasuhiko Morimoto

Recently, pre-trained models have been the dominant paradigm in natural language processing. They achieved remarkable state-of-the-art performance across a wide range of related tasks, such as textual entailment, natural language inference,…

计算与语言 · 计算机科学 2019-05-21 Dongfang Li , Yifei Yu , Qingcai Chen , Xinyu Li

In this work, we release COVID-Twitter-BERT (CT-BERT), a transformer-based model, pretrained on a large corpus of Twitter messages on the topic of COVID-19. Our model shows a 10-30% marginal improvement compared to its base model,…

计算与语言 · 计算机科学 2020-05-18 Martin Müller , Marcel Salathé , Per E Kummervold

Pretrained language models like BERT have achieved good results on NLP tasks, but are impractical on resource-limited devices due to memory footprint. A large fraction of this footprint comes from the input embeddings with large input…

计算与语言 · 计算机科学 2021-02-09 Sanqiang Zhao , Raghav Gupta , Yang Song , Denny Zhou

Self-supervised learning has proven to be an effective way to learn representations in domains where annotated labels are scarce, such as medical imaging. A widely adopted framework for this purpose is contrastive learning and it has been…

计算机视觉与模式识别 · 计算机科学 2024-02-23 Hugo Figueiras , Helena Aidos , Nuno Cruz Garcia

We focus on the problem of segmenting a certain object referred by a natural language sentence in video content, at the core of formulating a pinpoint vision-language relation. While existing attempts mainly construct such relation in an…

计算机视觉与模式识别 · 计算机科学 2021-09-30 Chen Liang , Yawei Luo , Yu Wu , Yi Yang

Vulnerability identification is crucial for cyber security in the software-related industry. Early identification methods require significant manual efforts in crafting features or annotating vulnerable code. Although the recent pre-trained…

软件工程 · 计算机科学 2022-08-11 Xuxiang Jiang , Yinhao Xiao , Jun Wang , Wei Zhang

Recently, contrastive learning has been shown to be effective in improving pre-trained language models (PLM) to derive high-quality sentence representations. It aims to pull close positive examples to enhance the alignment while push apart…

计算与语言 · 计算机科学 2022-05-03 Kun Zhou , Beichen Zhang , Wayne Xin Zhao , Ji-Rong Wen

Multimodal learning pipelines have benefited from the success of pretrained language models. However, this comes at the cost of increased model parameters. In this work, we propose Adapted Multimodal BERT (AMB), a BERT-based architecture…

计算与语言 · 计算机科学 2022-12-02 Odysseas S. Chlapanis , Georgios Paraskevopoulos , Alexandros Potamianos

Recently, large language models (LLMs) have emerged as a groundbreaking technology and their unparalleled text generation capabilities have sparked interest in their application to the fundamental sentence representation learning task.…

计算与语言 · 计算机科学 2024-05-20 Huiming Wang , Zhaodonghui Li , Liying Cheng , Soh De Wen , Lidong Bing

Recent works show that learning contextualized embeddings for words is beneficial for downstream tasks. BERT is one successful example of this approach. It learns embeddings by solving two tasks, which are masked language model (masked LM)…

计算与语言 · 计算机科学 2020-11-10 Çağla Aksoy , Alper Ahmetoğlu , Tunga Güngör

Modern pre-trained language models are mostly built upon backbones stacking self-attention and feed-forward layers in an interleaved order. In this paper, beyond this stereotyped layer pattern, we aim to improve pre-trained models by…

计算与语言 · 计算机科学 2021-06-28 Weihao Yu , Zihang Jiang , Fei Chen , Qibin Hou , Jiashi Feng

Speech models may be affected by performance imbalance in different population subgroups, raising concerns about fair treatment across these groups. Prior attempts to mitigate unfairness either focus on user-defined subgroups, potentially…

计算与语言 · 计算机科学 2024-09-17 Alkis Koudounas , Flavio Giobergia , Eliana Pastor , Elena Baralis

Recent developments in machine translation and multilingual text generation have led researchers to adopt trained metrics such as COMET or BLEURT, which treat evaluation as a regression problem and use representations from multilingual…

计算与语言 · 计算机科学 2021-10-14 Amy Pu , Hyung Won Chung , Ankur P. Parikh , Sebastian Gehrmann , Thibault Sellam

While BERT is an effective method for learning monolingual sentence embeddings for semantic similarity and embedding based transfer learning (Reimers and Gurevych, 2019), BERT based cross-lingual sentence embeddings have yet to be explored.…

计算与语言 · 计算机科学 2022-03-09 Fangxiaoyu Feng , Yinfei Yang , Daniel Cer , Naveen Arivazhagan , Wei Wang

Pre-trained language models such as BERT have become a more common choice of natural language processing (NLP) tasks. Research in word representation shows that isotropic embeddings can significantly improve performance on downstream tasks.…

计算与语言 · 计算机科学 2021-08-30 Yuxin Liang , Rui Cao , Jie Zheng , Jie Ren , Ling Gao