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Masked Language Modeling (MLM) is widely used to pretrain language models. The standard random masking strategy in MLM causes the pre-trained language models (PLMs) to be biased toward high-frequency tokens. Representation learning of rare…

计算与语言 · 计算机科学 2023-05-25 Linhan Zhang , Qian Chen , Wen Wang , Chong Deng , Xin Cao , Kongzhang Hao , Yuxin Jiang , Wei Wang

This paper explores the use of latent bootstrapping, an alternative self-supervision technique, for pretraining language models. Unlike the typical practice of using self-supervision on discrete subwords, latent bootstrapping leverages…

计算与语言 · 计算机科学 2023-10-31 David Samuel

Massively multilingual language models such as multilingual BERT offer state-of-the-art cross-lingual transfer performance on a range of NLP tasks. However, due to limited capacity and large differences in pretraining data sizes, there is a…

计算与语言 · 计算机科学 2021-09-13 Jonas Pfeiffer , Ivan Vulić , Iryna Gurevych , Sebastian Ruder

We tackle the problem of identifying metaphors in text, treated as a sequence tagging task. The pre-trained word embeddings GloVe, ELMo and BERT have individually shown good performance on sequential metaphor identification. These…

计算与语言 · 计算机科学 2021-04-08 Rui Mao , Chenghua Lin , Frank Guerin

Pre-trained contextual representations like BERT have achieved great success in natural language processing. However, the sentence embeddings from the pre-trained language models without fine-tuning have been found to poorly capture…

计算与语言 · 计算机科学 2020-11-12 Bohan Li , Hao Zhou , Junxian He , Mingxuan Wang , Yiming Yang , Lei Li

In recent years, pre-trained large language models (LLMs) have demonstrated remarkable efficiency in achieving an inference-time few-shot learning capability known as in-context learning. However, existing literature has highlighted the…

计算与语言 · 计算机科学 2024-02-14 Xinyi Wang , Wanrong Zhu , Michael Saxon , Mark Steyvers , William Yang Wang

Contextual word embeddings obtained from pre-trained language model (PLM) have proven effective for various natural language processing tasks at the word level. However, interpreting the hidden aspects within embeddings, such as syntax and…

计算与语言 · 计算机科学 2023-10-10 Nayoung Choi

With the surge in digital content in low-resource languages, there is an escalating demand for advanced Natural Language Processing (NLP) techniques tailored to these languages. BERT (Bidirectional Encoder Representations from…

计算与语言 · 计算机科学 2024-08-07 Pranita Deshmukh , Nikita Kulkarni , Sanhita Kulkarni , Kareena Manghani , Raviraj Joshi

Pre-trained language models such as BERT have been a key ingredient to achieve state-of-the-art results on a variety of tasks in natural language processing and, more recently, also in information retrieval.Recent research even claims that…

信息检索 · 计算机科学 2022-05-03 Emma J. Gerritse , Faegheh Hasibi , Arjen P. de Vries

The current dominance of deep neural networks in natural language processing is based on contextual embeddings such as ELMo, BERT, and BERT derivatives. Most existing work focuses on English; in contrast, we present here the first…

Large language models (LLMs) are renowned for their exceptional capabilities, and applying to a wide range of applications. However, this widespread use brings significant vulnerabilities. Also, it is well observed that there are huge gap…

计算与语言 · 计算机科学 2024-09-23 Md Abdur Rahman , Hossain Shahriar , Fan Wu , Alfredo Cuzzocrea

Multilingual contextual embeddings, such as multilingual BERT and XLM-RoBERTa, have proved useful for many multi-lingual tasks. Previous work probed the cross-linguality of the representations indirectly using zero-shot transfer learning on…

计算与语言 · 计算机科学 2020-10-01 Jindřich Libovický , Rudolf Rosa , Alexander Fraser

One of the most remarkable properties of word embeddings is the fact that they capture certain types of semantic and syntactic relationships. Recently, pre-trained language models such as BERT have achieved groundbreaking results across a…

计算与语言 · 计算机科学 2019-12-02 Zied Bouraoui , Jose Camacho-Collados , Steven Schockaert

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

Active learning has been shown to be an effective way to alleviate some of the effort required in utilising large collections of unlabelled data for machine learning tasks without needing to fully label them. The representation mechanism…

信息检索 · 计算机科学 2020-04-29 Jinghui Lu , Brian MacNamee

A salient characteristic of pre-trained language models (PTLMs) is a remarkable improvement in their generalization capability and emergence of new capabilities with increasing model capacity and pre-training dataset size. Consequently, we…

Transformers that are pre-trained on multilingual corpora, such as, mBERT and XLM-RoBERTa, have achieved impressive cross-lingual transfer capabilities. In the zero-shot transfer setting, only English training data is used, and the…

计算与语言 · 计算机科学 2021-09-13 Yang Chen , Alan Ritter

Pretraining on large-scale datasets can boost the performance of object detectors while the annotated datasets for object detection are hard to scale up due to the high labor cost. What we possess are numerous isolated filed-specific…

计算机视觉与模式识别 · 计算机科学 2023-04-10 Jing Hao , Song Chen , Xiaodi Wang , Shumin Han

Detecting plagiarism involves finding similar items in two different sources. In this article, we propose a novel method for detecting plagiarism that is based on attention mechanism-based long short-term memory (LSTM) and bidirectional…

计算与语言 · 计算机科学 2023-05-05 Seyed Vahid Moravvej , Seyed Jalaleddin Mousavirad , Diego Oliva , Fardin Mohammadi

Few-shot learning-the ability to train models with access to limited data-has become increasingly popular in the natural language processing (NLP) domain, as large language models such as GPT and T0 have been empirically shown to achieve…

软件工程 · 计算机科学 2023-06-16 Robert Kraig Helmeczi , Mucahit Cevik , Savas Yıldırım