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Deep learning has achieved remarkable success in graph-related tasks, yet this accomplishment heavily relies on large-scale high-quality annotated datasets. However, acquiring such datasets can be cost-prohibitive, leading to the practical…

Machine Learning · Computer Science 2024-03-11 Ling-Hao Chen , Yuanshuo Zhang , Taohua Huang , Liangcai Su , Zeyi Lin , Xi Xiao , Xiaobo Xia , Tongliang Liu

Information Extraction (IE) is an essential task in Natural Language Processing. Traditional methods have relied on coarse-grained extraction with simple instructions. However, with the emergence of Large Language Models (LLMs), there is a…

Computation and Language · Computer Science 2023-10-10 Jun Gao , Huan Zhao , Yice Zhang , Wei Wang , Changlong Yu , Ruifeng Xu

Most existing unsupervised person re-identification (Re-ID) methods use clustering to generate pseudo labels for model training. Unfortunately, clustering sometimes mixes different true identities together or splits the same identity into…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Xinyu Zhang , Dongdong Li , Zhigang Wang , Jian Wang , Errui Ding , Javen Qinfeng Shi , Zhaoxiang Zhang , Jingdong Wang

As one of the central tasks in machine learning, regression finds lots of applications in different fields. An existing common practice for solving regression problems is the mean square error (MSE) minimization approach or its regularized…

Machine Learning · Statistics 2022-11-24 Jirong Yi , Qiaosheng Zhang , Zhen Chen , Qiao Liu , Wei Shao , Yusen He , Yaohua Wang

Zero-shot cross-lingual information extraction(IE) aims at constructing an IE model for some low-resource target languages, given annotations exclusively in some rich-resource languages. Recent studies based on language-universal features…

Computation and Language · Computer Science 2023-05-23 Jun-Yu Ma , Jia-Chen Gu , Zhen-Hua Ling , Quan Liu , Cong Liu , Guoping Hu

Graph Neural Networks (GNNs) have achieved great success in various tasks, but their performance highly relies on a large number of labeled nodes, which typically requires considerable human effort. GNN-based Active Learning (AL) methods…

Machine Learning · Computer Science 2022-03-03 Wentao Zhang , Yexin Wang , Zhenbang You , Meng Cao , Ping Huang , Jiulong Shan , Zhi Yang , Bin Cui

Iterative Language-Based Image Editing (IL-BIE) tasks follow iterative instructions to edit images step by step. Data scarcity is a significant issue for ILBIE as it is challenging to collect large-scale examples of images before and after…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Tsu-Jui Fu , Xin Eric Wang , Scott Grafton , Miguel Eckstein , William Yang Wang

In the field of educational assessment, automated scoring systems increasingly rely on deep learning and large language models (LLMs). However, these systems face significant risks of bias amplification, where model prediction gaps between…

Computation and Language · Computer Science 2026-04-21 Yun Wang , Xuansheng Wu , Jingyuan Huang , Lei Liu , Xiaoming Zhai , Ninghao Liu

Deep learning for Information Retrieval (IR) requires a large amount of high-quality query-document relevance labels, but such labels are inherently sparse. Label smoothing redistributes some observed probability mass over unobserved…

Information Retrieval · Computer Science 2022-05-10 Jihyuk Kim , Minsoo Kim , Seung-won Hwang

Various strategies for label-scarce object detection have been explored by the computer vision research community. These strategies mainly rely on assumptions that are specific to natural images and not directly applicable to the biological…

Generalization and sample efficiency have been long-standing issues concerning reinforcement learning, and thus the field of Offline Meta-Reinforcement Learning~(OMRL) has gained increasing attention due to its potential of solving a wide…

Machine Learning · Computer Science 2023-12-27 Renzhe Zhou , Chen-Xiao Gao , Zongzhang Zhang , Yang Yu

Extracting information from full documents is an important problem in many domains, but most previous work focus on identifying relationships within a sentence or a paragraph. It is challenging to create a large-scale information extraction…

Computation and Language · Computer Science 2020-05-04 Sarthak Jain , Madeleine van Zuylen , Hannaneh Hajishirzi , Iz Beltagy

The aim in imitation learning is to learn effective policies by utilizing near-optimal expert demonstrations. However, high-quality demonstrations from human experts can be expensive to obtain in large numbers. On the other hand, it is…

Machine Learning · Computer Science 2021-10-29 Mengjiao Yang , Sergey Levine , Ofir Nachum

Imitation learning is a powerful machine learning algorithm for a robot to acquire manipulation skills. Nevertheless, many real-world manipulation tasks involve precise and dexterous robot-object interactions, which make it difficult for…

Robotics · Computer Science 2024-07-23 Zhao-Heng Yin , Pieter Abbeel

Graph convolutional networks (GCNs) have recently received wide attentions, due to their successful applications in different graph tasks and different domains. Training GCNs for a large graph, however, is still a challenge. Original…

Machine Learning · Computer Science 2019-11-19 Difan Zou , Ziniu Hu , Yewen Wang , Song Jiang , Yizhou Sun , Quanquan Gu

Preference-based reinforcement learning (RL) has shown potential for teaching agents to perform the target tasks without a costly, pre-defined reward function by learning the reward with a supervisor's preference between the two agent…

Machine Learning · Computer Science 2022-03-21 Jongjin Park , Younggyo Seo , Jinwoo Shin , Honglak Lee , Pieter Abbeel , Kimin Lee

How to utilize the pseudo labels has always been a research hotspot in machine learning. However, most methods use pseudo labels as supervised training, and lack of valid assessing for their accuracy. Moreover, applications of pseudo labels…

Machine Learning · Computer Science 2023-10-03 Xinjie Shen , Danyang Wu , Jitao Lu , Junjie Liang , Jin Xu , Feiping Nie

In many sequential decision-making problems (e.g., robotics control, game playing, sequential prediction), human or expert data is available containing useful information about the task. However, imitation learning (IL) from a small amount…

Machine Learning · Computer Science 2022-11-04 Divyansh Garg , Shuvam Chakraborty , Chris Cundy , Jiaming Song , Matthieu Geist , Stefano Ermon

Information extraction(IE) is a crucial subfield within natural language processing. However, for the traditionally segmented approach to sentence classification and Named Entity Recognition, the intricate interactions between these…

Computation and Language · Computer Science 2023-07-24 Chengguang Gan , Qinghao Zhang , Tatsunori Mori

Sufficient supervised information is crucial for any machine learning models to boost performance. However, labeling data is expensive and sometimes difficult to obtain. Active learning is an approach to acquire annotations for data from a…

Machine Learning · Computer Science 2019-06-18 Quan Kong , Bin Tong , Martin Klinkigt , Yuki Watanabe , Naoto Akira , Tomokazu Murakami