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We investigate the use of LLM-generated data for continual pretraining of encoder models in specialized domains with limited training data, using the scientific domain of invasion biology as a case study. To this end, we leverage…

计算与语言 · 计算机科学 2025-11-25 Marc Brinner , Tarek Al Mustafa , Sina Zarrieß

We describe our strategy for the 2025 edition of the BabyLM Challenge. Our main contribution is that of an improved form of Masked Language Modeling (MLM), which adapts the probabilities of the tokens masked according to the model's ability…

计算与语言 · 计算机科学 2025-10-24 Lukas Edman , Alexander Fraser

The pre-training of masked language models (MLMs) consumes massive computation to achieve good results on downstream NLP tasks, resulting in a large carbon footprint. In the vanilla MLM, the virtual tokens, [MASK]s, act as placeholders and…

计算与语言 · 计算机科学 2022-11-16 Baohao Liao , David Thulke , Sanjika Hewavitharana , Hermann Ney , Christof Monz

Multilingual Pre-trained Language models (multiPLMs), trained on the Masked Language Modelling (MLM) objective are commonly being used for cross-lingual tasks such as bitext mining. However, the performance of these models is still…

计算与语言 · 计算机科学 2025-01-13 Aloka Fernando , Surangika Ranathunga

For protein sequence datasets, unlabeled data has greatly outpaced labeled data due to the high cost of wet-lab characterization. Recent deep-learning approaches to protein prediction have shown that pre-training on unlabeled data can yield…

机器学习 · 计算机科学 2020-12-02 Pascal Sturmfels , Jesse Vig , Ali Madani , Nazneen Fatema Rajani

Understanding protein sequences is vital and urgent for biology, healthcare, and medicine. Labeling approaches are expensive yet time-consuming, while the amount of unlabeled data is increasing quite faster than that of the labeled data due…

计算与语言 · 计算机科学 2021-11-01 Liang He , Shizhuo Zhang , Lijun Wu , Huanhuan Xia , Fusong Ju , He Zhang , Siyuan Liu , Yingce Xia , Jianwei Zhu , Pan Deng , Bin Shao , Tao Qin , Tie-Yan Liu

Pre-trained language models in the past years have shown exponential growth in model parameters and compute time. ELECTRA is a novel approach for improving the compute efficiency of pre-trained language models (e.g. BERT) based on masked…

计算与语言 · 计算机科学 2021-10-14 Junmo Kang , Suwon Shin , Jeonghwan Kim , Jaeyoung Jo , Sung-Hyon Myaeng

We propose to pre-train a unified language model for both autoencoding and partially autoregressive language modeling tasks using a novel training procedure, referred to as a pseudo-masked language model (PMLM). Given an input text with…

计算与语言 · 计算机科学 2020-03-02 Hangbo Bao , Li Dong , Furu Wei , Wenhui Wang , Nan Yang , Xiaodong Liu , Yu Wang , Songhao Piao , Jianfeng Gao , Ming Zhou , Hsiao-Wuen Hon

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

Pre-trained Large Language Models (LLMs) often struggle on out-of-domain datasets like healthcare focused text. We explore specialized pre-training to adapt smaller LLMs to different healthcare datasets. Three methods are assessed:…

计算与语言 · 计算机科学 2024-04-01 Niall Taylor , Dan Schofield , Andrey Kormilitzin , Dan W Joyce , Alejo Nevado-Holgado

The current era of natural language processing (NLP) has been defined by the prominence of pre-trained language models since the advent of BERT. A feature of BERT and models with similar architecture is the objective of masked language…

计算与语言 · 计算机科学 2023-07-04 Ed S. Ma

Masked Language Modeling (MLM) has been widely used as the denoising objective in pre-training language models (PrLMs). Existing PrLMs commonly adopt a Random-Token Masking strategy where a fixed masking ratio is applied and different…

计算与语言 · 计算机科学 2023-05-26 Dongjie Yang , Zhuosheng Zhang , Hai Zhao

Successful methods for unsupervised neural machine translation (UNMT) employ crosslingual pretraining via self-supervision, often in the form of a masked language modeling or a sequence generation task, which requires the model to align the…

计算与语言 · 计算机科学 2021-04-15 Alexandra Chronopoulou , Dario Stojanovski , Alexander Fraser

Pre-trained models have achieved remarkable success in natural language processing (NLP). However, existing pre-training methods underutilize the benefits of language understanding for generation. Inspired by the idea of Generative…

计算与语言 · 计算机科学 2023-05-10 Jian Yang , Shuming Ma , Li Dong , Shaohan Huang , Haoyang Huang , Yuwei Yin , Dongdong Zhang , Liqun Yang , Furu Wei , Zhoujun Li

Masked Language Modeling (MLM) has proven to be an essential component of Vision-Language (VL) pretraining. To implement MLM, the researcher must make two design choices: the masking strategy, which determines which tokens to mask, and the…

机器学习 · 计算机科学 2022-12-13 Siddharth Verma , Yuchen Lu , Rui Hou , Hanchao Yu , Nicolas Ballas , Madian Khabsa , Amjad Almahairi

Masked language modeling (MLM) pre-training models such as BERT corrupt the input by replacing some tokens with [MASK] and then train a model to reconstruct the original tokens. This is an effective technique which has led to good results…

计算与语言 · 计算机科学 2020-06-11 Andy Wagner , Tiyasa Mitra , Mrinal Iyer , Godfrey Da Costa , Marc Tremblay

Masked language modeling (MLM) has been widely used for pre-training effective bidirectional representations, but incurs substantial training costs. In this paper, we propose a novel concept-based curriculum masking (CCM) method to…

计算与语言 · 计算机科学 2022-12-16 Mingyu Lee , Jun-Hyung Park , Junho Kim , Kang-Min Kim , SangKeun Lee

Recently, prompt tuning \cite{lester2021power} has gradually become a new paradigm for NLP, which only depends on the representation of the words by freezing the parameters of pre-trained language models (PLMs) to obtain remarkable…

计算与语言 · 计算机科学 2022-01-31 Pan He , Yuxi Chen , Yan Wang , Yanru Zhang

Recent work has shown the importance of adaptation of broad-coverage contextualised embedding models on the domain of the target task of interest. Current self-supervised adaptation methods are simplistic, as the training signal comes from…

计算与语言 · 计算机科学 2020-10-06 Thuy-Trang Vu , Dinh Phung , Gholamreza Haffari

DNA sequence encoding is fundamental to gene function prediction, protein synthesis, and diverse downstream biological tasks. Despite the substantial progress achieved by large-scale DNA sequence pretraining, existing studies have…

机器学习 · 计算机科学 2026-04-21 Zhijiang Tang , Jiaxin Qi , Yan Cui , Jinli Ou , Yuhua Zheng , Jianqiang Huang