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Recent research indicates that pretraining cross-lingual language models on large-scale unlabeled texts yields significant performance improvements over various cross-lingual and low-resource tasks. Through training on one hundred languages…

计算与语言 · 计算机科学 2020-11-24 Juntao Li , Ruidan He , Hai Ye , Hwee Tou Ng , Lidong Bing , Rui Yan

This paper explores a new research problem of unsupervised transfer learning across multiple spatiotemporal prediction tasks. Unlike most existing transfer learning methods that focus on fixing the discrepancy between supervised tasks, we…

机器学习 · 计算机科学 2020-09-25 Zhiyu Yao , Yunbo Wang , Mingsheng Long , Jianmin Wang

Image translation between two domains is a class of problems aiming to learn mapping from an input image in the source domain to an output image in the target domain. It has been applied to numerous domains, such as data augmentation,…

计算机视觉与模式识别 · 计算机科学 2019-06-06 Chao Yang , Taehwan Kim , Ruizhe Wang , Hao Peng , C. -C. Jay Kuo

Supervised deep learning usually faces more challenges in medical images than in natural images. Since annotations in medical images require the expertise of doctors and are more time-consuming and expensive. Thus, some researchers turn to…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Tao Yang , Lisheng Wang

Transfer learning for extremely low resource languages is a challenging task as there is no large scale monolingual corpora for pre training or sufficient annotated data for fine tuning. We follow the work of MetaXL which suggests using…

计算与语言 · 计算机科学 2023-06-02 Liat Bezalel , Eyal Orgad

Meta-learning has emerged as a trending technique to tackle few-shot text classification and achieved state-of-the-art performance. However, existing solutions heavily rely on the exploitation of lexical features and their distributional…

计算与语言 · 计算机科学 2021-07-27 ChengCheng Han , Zeqiu Fan , Dongxiang Zhang , Minghui Qiu , Ming Gao , Aoying Zhou

In this paper, we address the problem of unsupervised Domain Adaptation. The need for such an adaptation arises when the distribution of the target data differs from that which is used to develop the model and the ground truth information…

机器学习 · 计算机科学 2022-10-04 Siddharth Roheda , Ashkan Panahi , Hamid Krim

We develop an algorithm for adapting a semantic segmentation model that is trained using a labeled source domain to generalize well in an unlabeled target domain. A similar problem has been studied extensively in the unsupervised domain…

机器学习 · 计算机科学 2021-01-12 Serban Stan , Mohammad Rostami

This study tackles unsupervised domain adaptation of reading comprehension (UDARC). Reading comprehension (RC) is a task to learn the capability for question answering with textual sources. State-of-the-art models on RC still do not have…

计算与语言 · 计算机科学 2020-05-22 Kosuke Nishida , Kyosuke Nishida , Itsumi Saito , Hisako Asano , Junji Tomita

While neural machine translation (NMT) has become the new paradigm, the parameter optimization requires large-scale parallel data which is scarce in many domains and language pairs. In this paper, we address a new translation scenario in…

计算与语言 · 计算机科学 2017-11-06 Yining Wang , Yang Zhao , Jiajun Zhang , Chengqing Zong , Zhengshan Xue

The amount of labeled data to train models for speech tasks is limited for most languages, however, the data scarcity is exacerbated for speech translation which requires labeled data covering two different languages. To address this issue,…

计算与语言 · 计算机科学 2022-10-20 Changhan Wang , Hirofumi Inaguma , Peng-Jen Chen , Ilia Kulikov , Yun Tang , Wei-Ning Hsu , Michael Auli , Juan Pino

While end-to-end neural machine translation (NMT) has made remarkable progress recently, it still suffers from the data scarcity problem for low-resource language pairs and domains. In this paper, we propose a method for zero-resource NMT…

计算与语言 · 计算机科学 2017-05-03 Yun Chen , Yang Liu , Yong Cheng , Victor O. K. Li

This work aims to improve semi-supervised learning in a neural network architecture by introducing a hybrid supervised and unsupervised cost function. The unsupervised component is trained using a differentiable estimator of the Maximum…

机器学习 · 计算机科学 2018-10-30 Mark Hamilton

Neural networks often require large amounts of expert annotated data to train. When changes are made in the process of medical imaging, trained networks may not perform as well, and obtaining large amounts of expert annotations for each…

图像与视频处理 · 电气工程与系统科学 2021-08-05 Nicolas Ewen , Naimul Khan

Most approaches in few-shot learning rely on costly annotated data related to the goal task domain during (pre-)training. Recently, unsupervised meta-learning methods have exchanged the annotation requirement for a reduction in few-shot…

机器学习 · 计算机科学 2020-06-23 Carlos Medina , Arnout Devos , Matthias Grossglauser

Self-supervised pre-training of transformer models has revolutionized NLP applications. Such pre-training with language modeling objectives provides a useful initial point for parameters that generalize well to new tasks with fine-tuning.…

计算与语言 · 计算机科学 2020-11-17 Trapit Bansal , Rishikesh Jha , Tsendsuren Munkhdalai , Andrew McCallum

Unsupervised domain adaptation (UDA) aims to transfer the knowledge from the labeled source domain to the unlabeled target domain. Existing self-training based UDA approaches assign pseudo labels for target data and treat them as ground…

计算机视觉与模式识别 · 计算机科学 2021-03-10 Xiaoqing Guo , Chen Yang , Baopu Li , Yixuan Yuan

The combination of multilingual pre-trained representations and cross-lingual transfer learning is one of the most effective methods for building functional NLP systems for low-resource languages. However, for extremely low-resource…

计算与语言 · 计算机科学 2021-04-19 Mengzhou Xia , Guoqing Zheng , Subhabrata Mukherjee , Milad Shokouhi , Graham Neubig , Ahmed Hassan Awadallah

Existing neural machine translation (NMT) studies mainly focus on developing dataset-specific models based on data from different tasks (e.g., document translation and chat translation). Although the dataset-specific models have achieved…

计算与语言 · 计算机科学 2023-05-19 Yunlong Liang , Fandong Meng , Jinan Xu , Jiaan Wang , Yufeng Chen , Jie Zhou

Translating text that diverges from the training domain is a key challenge for machine translation. Domain robustness---the generalization of models to unseen test domains---is low for both statistical (SMT) and neural machine translation…

计算与语言 · 计算机科学 2020-09-28 Mathias Müller , Annette Rios , Rico Sennrich