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Fine-tuning pre-trained language models for downstream tasks has become a norm for NLP. Recently it is found that intermediate training based on high-level inference tasks such as Question Answering (QA) can improve the performance of some…

计算与语言 · 计算机科学 2022-01-03 Shiwei Zhang , Xiuzhen Zhang

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

Unsupervised pre-training is now the predominant approach for both text and speech understanding. Self-attention models pre-trained on large amounts of unannotated data have been hugely successful when fine-tuned on downstream tasks from a…

计算与语言 · 计算机科学 2021-10-22 Ankur Bapna , Yu-an Chung , Nan Wu , Anmol Gulati , Ye Jia , Jonathan H. Clark , Melvin Johnson , Jason Riesa , Alexis Conneau , Yu Zhang

Language models like BERT and SpanBERT pretrained on open-domain data have obtained impressive gains on various NLP tasks. In this paper, we probe the effectiveness of domain-adaptive pretraining objectives on downstream tasks. In…

计算与语言 · 计算机科学 2021-05-31 Han Wu , Kun Xu , Linfeng Song , Lifeng Jin , Haisong Zhang , Linqi Song

Unsupervised pretraining models have been shown to facilitate a wide range of downstream NLP applications. These models, however, retain some of the limitations of traditional static word embeddings. In particular, they encode only the…

计算与语言 · 计算机科学 2020-04-21 Anne Lauscher , Ivan Vulić , Edoardo Maria Ponti , Anna Korhonen , Goran Glavaš

The generalizability to new databases is of vital importance to Text-to-SQL systems which aim to parse human utterances into SQL statements. Existing works achieve this goal by leveraging the exact matching method to identify the lexical…

计算与语言 · 计算机科学 2022-08-09 Aiwei Liu , Xuming Hu , Li Lin , Lijie Wen

Vision-language pre-training (VLP) on large-scale image-text pairs has recently witnessed rapid progress for learning cross-modal representations. Existing pre-training methods either directly concatenate image representation and text…

计算与语言 · 计算机科学 2021-03-16 Chenliang Li , Ming Yan , Haiyang Xu , Fuli Luo , Wei Wang , Bin Bi , Songfang Huang

Pre-trained Language Model (PLM) has become a representative foundation model in the natural language processing field. Most PLMs are trained with linguistic-agnostic pre-training tasks on the surface form of the text, such as the masked…

计算与语言 · 计算机科学 2022-11-11 Yiming Cui , Wanxiang Che , Shijin Wang , Ting Liu

Bridging the significant gap between large language model's English and non-English performance presents a great challenge. While some previous studies attempt to mitigate this gap with translated training data, the recently proposed…

计算与语言 · 计算机科学 2024-11-07 Wenhao Zhu , Shujian Huang , Fei Yuan , Cheng Chen , Jiajun Chen , Alexandra Birch

Parameter-shared pre-trained language models (PLMs) have emerged as a successful approach in resource-constrained environments, enabling substantial reductions in model storage and memory costs without significant performance compromise.…

计算与语言 · 计算机科学 2023-10-20 Weize Chen , Xiaoyue Xu , Xu Han , Yankai Lin , Ruobing Xie , Zhiyuan Liu , Maosong Sun , Jie Zhou

Link prediction in knowledge graphs requires integrating structural information and semantic context to infer missing entities. While large language models offer strong generative reasoning capabilities, their limited exploitation of…

计算与语言 · 计算机科学 2025-09-09 Mengxue Yang , Chun Yang , Jiaqi Zhu , Jiafan Li , Jingqi Zhang , Yuyang Li , Ying Li

The rapid advancement of Large Language Models (LLMs) has improved text understanding and generation but poses challenges in computational resources. This study proposes a curriculum learning-inspired, data-centric training strategy that…

计算与语言 · 计算机科学 2024-05-14 Jisu Kim , Juhwan Lee

Sharding a large machine learning model across multiple devices to balance the costs is important in distributed training. This is challenging because partitioning is NP-hard, and estimating the costs accurately and efficiently is…

Most Chinese pre-trained models take character as the basic unit and learn representation according to character's external contexts, ignoring the semantics expressed in the word, which is the smallest meaningful utterance in Chinese.…

计算与语言 · 计算机科学 2020-04-30 Yanzeng Li , Bowen Yu , Mengge Xue , Tingwen Liu

Pre-training text representations has recently been shown to significantly improve the state-of-the-art in many natural language processing tasks. The central goal of pre-training is to learn text representations that are useful for…

计算与语言 · 计算机科学 2020-04-14 Shangwen Lv , Yuechen Wang , Daya Guo , Duyu Tang , Nan Duan , Fuqing Zhu , Ming Gong , Linjun Shou , Ryan Ma , Daxin Jiang , Guihong Cao , Ming Zhou , Songlin Hu

The knowledge that humans hold about a problem often extends far beyond a set of training data and output labels. While the success of deep learning mostly relies on supervised training, important properties cannot be inferred efficiently…

计算机视觉与模式识别 · 计算机科学 2019-11-19 Damien Teney , Ehsan Abbasnejad , Anton van den Hengel

In-context learning of large-language models (LLMs) has achieved remarkable success in the field of natural language processing, while extensive case studies reveal that the single-step chain-of-thought prompting approach faces challenges…

计算与语言 · 计算机科学 2024-07-04 Yuanzhen Xie , Xinzhou Jin , Tao Xie , MingXiong Lin , Liang Chen , Chenyun Yu , Lei Cheng , ChengXiang Zhuo , Bo Hu , Zang Li

Unsupervised cross-lingual pretraining has achieved strong results in neural machine translation (NMT), by drastically reducing the need for large parallel data. Most approaches adapt masked-language modeling (MLM) to sequence-to-sequence…

计算与语言 · 计算机科学 2021-06-11 Christos Baziotis , Ivan Titov , Alexandra Birch , Barry Haddow

Deep learning perception models require a massive amount of labeled training data to achieve good performance. While unlabeled data is easy to acquire, the cost of labeling is prohibitive and could create a tremendous burden on companies or…

计算机视觉与模式识别 · 计算机科学 2021-11-19 Xinnan Du , William Zhang , Jose M. Alvarez

Sentence embedding tasks are important in natural language processing (NLP), but improving their performance while keeping them reliable is still hard. This paper presents a framework that combines pseudo-label generation and model ensemble…

计算与语言 · 计算机科学 2025-01-28 Ziwei Liu , Qi Zhang , Lifu Gao