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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

Unsupervised word embeddings have become a popular approach of word representation in NLP tasks. However there are limitations to the semantics represented by unsupervised embeddings, and inadequate fine-tuning of embeddings can lead to…

计算与语言 · 计算机科学 2019-06-10 Xiao Zhang , Ji Wu , Dejing Dou

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

Ensembling word embeddings to improve distributed word representations has shown good success for natural language processing tasks in recent years. These approaches either carry out straightforward mathematical operations over a set of…

计算与语言 · 计算机科学 2018-08-14 James O' Neill , Danushka Bollegala

Despite the well-developed cut-edge representation learning for language, most language representation models usually focus on specific level of linguistic unit, which cause great inconvenience when being confronted with handling multiple…

计算与语言 · 计算机科学 2020-09-11 Yian Li , Hai Zhao

Word embeddings have been shown to benefit from ensambling several word embedding sources, often carried out using straightforward mathematical operations over the set of word vectors. More recently, self-supervised learning has been used…

计算与语言 · 计算机科学 2020-01-27 James O' Neill , Danushka Bollegala

We present models for encoding sentences into embedding vectors that specifically target transfer learning to other NLP tasks. The models are efficient and result in accurate performance on diverse transfer tasks. Two variants of the…

Joint video-language learning has received increasing attention in recent years. However, existing works mainly focus on single or multiple trimmed video clips (events), which makes human-annotated event boundaries necessary during…

计算机视觉与模式识别 · 计算机科学 2023-05-18 Teng Wang , Jinrui Zhang , Feng Zheng , Wenhao Jiang , Ran Cheng , Ping Luo

In the field of document understanding, significant advances have been made in the fine-tuning of Multimodal Large Language Models (MLLMs) with instruction-following data. Nevertheless, the potential of text-grounding capability within…

计算机视觉与模式识别 · 计算机科学 2023-12-18 Yonghui Wang , Wengang Zhou , Hao Feng , Keyi Zhou , Houqiang Li

We propose a novel and simple method for semi-supervised text classification. The method stems from the hypothesis that a classifier with pretrained word embeddings always outperforms the same classifier with randomly initialized word…

计算与语言 · 计算机科学 2019-10-01 Hwiyeol Jo , Ceyda Cinarel

As large language models (LLMs) are trained on massive datasets, they have raised significant privacy and ethical concerns due to their potential to inadvertently retain sensitive information. Unlearning seeks to selectively remove specific…

计算与语言 · 计算机科学 2025-06-17 Philipp Spohn , Leander Girrbach , Jessica Bader , Zeynep Akata

Multimodal learning from document data has achieved great success lately as it allows to pre-train semantically meaningful features as a prior into a learnable downstream task. In this paper, we approach the document classification problem…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Souhail Bakkali , Zuheng Ming , Mickael Coustaty , Marçal Rusiñol , Oriol Ramos Terrades

The growing prevalence of visually rich documents, such as webpages and scanned/digital-born documents (images, PDFs, etc.), has led to increased interest in automatic document understanding and information extraction across academia and…

计算与语言 · 计算机科学 2024-02-29 Hongshen Xu , Lu Chen , Zihan Zhao , Da Ma , Ruisheng Cao , Zichen Zhu , Kai Yu

Spatio-temporal trajectories provide valuable information about movement and travel behavior, enabling various downstream tasks that in turn power real-world applications. Learning trajectory embeddings can improve task performance but may…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Yan Lin , Huaiyu Wan , Shengnan Guo , Jilin Hu , Christian S. Jensen , Youfang Lin

Morphological information is important for many sequence labeling tasks in Natural Language Processing (NLP). Yet, existing approaches rely heavily on manual annotations or external software to capture this information. In this study, we…

计算与语言 · 计算机科学 2020-04-28 Arda Akdemir , Tetsuo Shibuya , Tunga Güngör

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

Embedding-based neural topic models could explicitly represent words and topics by embedding them to a homogeneous feature space, which shows higher interpretability. However, there are no explicit constraints for the training of…

计算与语言 · 计算机科学 2022-06-17 Wei Shao , Lei Huang , Shuqi Liu , Shihua Ma , Linqi Song

The emergence of unsupervised word embeddings, pre-trained on very large monolingual text corpora, is at the core of the ongoing neural revolution in Natural Language Processing (NLP). Initially introduced for English, such pre-trained word…

计算与语言 · 计算机科学 2024-06-18 Guillem Ramírez , Rumen Dangovski , Preslav Nakov , Marin Soljačić

Prior study has shown that pretrained language models (PLM) can boost the performance of text-based recommendation. In contrast to previous works that either use PLM to encode user history as a whole input text, or impose an additional…

计算与语言 · 计算机科学 2023-05-26 Zhiming Mao , Huimin Wang , Yiming Du , Kam-fai Wong

Recent researches show that pre-trained models (PTMs) are beneficial to Chinese Word Segmentation (CWS). However, PTMs used in previous works usually adopt language modeling as pre-training tasks, lacking task-specific prior segmentation…

计算与语言 · 计算机科学 2021-03-16 Zhen Ke , Liang Shi , Songtao Sun , Erli Meng , Bin Wang , Xipeng Qiu