1 code implementation • EMNLP (sdp) 2020 • Jian Wu, Pei Wang, Xin Wei, Sarah Rajtmajer, C. Lee Giles, Christopher Griffin
We built a supplementary database by linking CORD-19 papers with acknowledgement entities extracted by AckExtract including persons and organizations and find that only up to 50–60% of named entities are actually acknowledged.
no code implementations • 5 Sep 2024 • Pei Wang, Xiaotong Luo, Yuan Xie, Yanyun Qu
Multi-weather image restoration has witnessed incredible progress, while the increasing model capacity and expensive data acquisition impair its applications in memory-limited devices.
no code implementations • 30 Aug 2024 • Shaojun Xu, Xiaohui Ye, Mengqi Zhang, Pei Wang
We apply a state-of-the-art difference-in-differences approach to estimate the impact of ChatGPT's release on the writing style of condensed matter papers on arXiv.
no code implementations • 29 May 2024 • Hanlong Li, Pei Wang, Yuhan Wu, Jing Ren, Yuhang Gao, Lingyun Zhang, Mingtai Zhang, Wenxin Chen
Wood-leaf classification is an essential and fundamental prerequisite in the analysis and estimation of forest attributes from terrestrial laser scanning (TLS) point clouds, including critical measurements such as diameter at breast height(DBH), above-ground biomass(AGB), wood volume. To address this, we introduce the Wood-Leaf Classification Network(WLC-Net), a deep learning model derived from PointNet++, designed to differentiate between wood and leaf points within tree point clouds. WLC-Net enhances classification accuracy, completeness, and speed by incorporating linearity as an inherent feature, refining the input-output framework, and optimizing the centroid sampling technique. WLC-Net was trained and assessed using three distinct tree species datasets, comprising a total of 102 individual tree point clouds:21 Chinese ash trees, 21 willow trees, and 60 tropical trees. For comparative evaluation, five alternative methods, including PointNet++, DGCNN, Krishna Moorthy's method, LeWoS, and Sun's method, were also applied to these datasets. The classification accuracy of all six methods was quantified using three metrics:overall accuracy(OA), mean Intersection over Union(mIoU), and F1-score. Across all three datasets, WLC-Net demonstrated superior performance, achieving OA scores of 0. 9778, 0. 9712, and 0. 9508;mIoU scores of 0. 9761, 0. 9693, and 0. 9141;and F1-scores of 0. 8628, 0. 7938, and 0. 9019, respectively. The time costs of WLC-Net were also recorded to evaluate the efficiency. The average processing time was 102. 74s per million points for WLC-Net. In terms of visual inspect, accuracy evaluation and efficiency evaluation, the results suggest that WLC-Net presents a promising approach for wood-leaf classification, distinguished by its high accuracy.
no code implementations • 6 Apr 2024 • Pei Wang, Zhaowei Cai, Hao Yang, Ashwin Swaminathan, R. Manmatha, Stefano Soatto
Existing unified image segmentation models either employ a unified architecture across multiple tasks but use separate weights tailored to each dataset, or apply a single set of weights to multiple datasets but are limited to a single task.
no code implementations • 27 Feb 2024 • Pei Wang, Keqing He, Yejie Wang, Xiaoshuai Song, Yutao Mou, Jingang Wang, Yunsen Xian, Xunliang Cai, Weiran Xu
Out-of-domain (OOD) intent detection aims to examine whether the user's query falls outside the predefined domain of the system, which is crucial for the proper functioning of task-oriented dialogue (TOD) systems.
no code implementations • 17 Feb 2024 • Pei Wang, Yejie Wang, Muxi Diao, Keqing He, Guanting Dong, Weiran Xu
In this work, we focus on improving the confidence estimation of large language models.
no code implementations • 14 Feb 2024 • Yejie Wang, Keqing He, Guanting Dong, Pei Wang, Weihao Zeng, Muxi Diao, Yutao Mou, Mengdi Zhang, Jingang Wang, Xunliang Cai, Weiran Xu
It learns diverse instruction targets and combines a code evaluation objective to enhance its code generation ability.
1 code implementation • 8 Feb 2024 • Qingsen Yan, Yixu Feng, Cheng Zhang, Pei Wang, Peng Wu, Wei Dong, Jinqiu Sun, Yanning Zhang
Further, we design a novel Color and Intensity Decoupling Network (CIDNet) with two branches dedicated to processing the decoupled image brightness and color in the HVI space.
Ranked #1 on Low-Light Image Enhancement on VV
Low-light Image Deblurring and Enhancement Low-Light Image Enhancement
no code implementations • 20 Oct 2023 • Pei Wang, Keqing He, Yutao Mou, Xiaoshuai Song, Yanan Wu, Jingang Wang, Yunsen Xian, Xunliang Cai, Weiran Xu
Detecting out-of-domain (OOD) intents from user queries is essential for a task-oriented dialogue system.
1 code implementation • 16 Oct 2023 • Xiaoshuai Song, Keqing He, Pei Wang, Guanting Dong, Yutao Mou, Jingang Wang, Yunsen Xian, Xunliang Cai, Weiran Xu
The tasks of out-of-domain (OOD) intent discovery and generalized intent discovery (GID) aim to extend a closed intent classifier to open-world intent sets, which is crucial to task-oriented dialogue (TOD) systems.
1 code implementation • 16 Oct 2023 • Xiaoshuai Song, Yutao Mou, Keqing He, Yueyan Qiu, Pei Wang, Weiran Xu
In a practical dialogue system, users may input out-of-domain (OOD) queries.
no code implementations • 20 Jul 2023 • Hugo Latapie, Shan Yu, Patrick Hammer, Kristinn R. Thorisson, Vahagn Petrosyan, Brandon Kynoch, Alind Khare, Payman Behnam, Alexey Tumanov, Aksheit Saxena, Anish Aralikatti, Hanning Chen, Mohsen Imani, Mike Archbold, Tangrui Li, Pei Wang, Justin Hart
Traditional computer vision models often necessitate extensive data acquisition, annotation, and validation.
no code implementations • 28 Jun 2023 • Jian Zhu, Congcong Liu, Pei Wang, Xiwei Zhao, Zhangang Lin, Jingping Shao
Model evolution and constant availability of data are two common phenomena in large-scale real-world machine learning applications, e. g. ads and recommendation systems.
1 code implementation • 28 May 2023 • Yutao Mou, Xiaoshuai Song, Keqing He, Chen Zeng, Pei Wang, Jingang Wang, Yunsen Xian, Weiran Xu
Previous methods suffer from a coupling of pseudo label disambiguation and representation learning, that is, the reliability of pseudo labels relies on representation learning, and representation learning is restricted by pseudo labels in turn.
no code implementations • 26 May 2023 • Axi Niu, Kang Zhang, Trung X. Pham, Pei Wang, Jinqiu Sun, In So Kweon, Yanning Zhang
Currently, there are two popular approaches for addressing real-world image super-resolution problems: degradation-estimation-based and blind-based methods.
no code implementations • 28 Feb 2023 • Axi Niu, Pei Wang, Yu Zhu, Jinqiu Sun, Qingsen Yan, Yanning Zhang
GRAB consists of the Ghost Module and Channel and Spatial Attention Module (CSAM) to alleviate the generation of redundant features.
no code implementations • 14 Feb 2023 • Pei Wang, Danna Xue, Yu Zhu, Jinqiu Sun, Qingsen Yan, Sung-Eui Yoon, Yanning Zhang
For general scene deblurring, the feature space of the blurry image and corresponding sharp image under the high-level vision task is closer, which inspires us to rely on other tasks (e. g. classification) to learn a comprehensive prior in severe blur removal cases.
no code implementations • CVPR 2023 • Pei Wang, Nuno Vasconcelos
A new approach, based on semi-supervised learning (SSL) and denoted as SSL with human filtering (SSL-HF) is proposed.
1 code implementation • 19 Oct 2022 • Yutao Mou, Pei Wang, Keqing He, Yanan Wu, Jingang Wang, Wei Wu, Weiran Xu
Specifically, we design a K-nearest neighbor contrastive learning (KNCL) objective for representation learning and introduce a KNN-based scoring function for OOD detection.
1 code implementation • 17 Oct 2022 • Yutao Mou, Keqing He, Pei Wang, Yanan Wu, Jingang Wang, Wei Wu, Weiran Xu
For OOD clustering stage, we propose a KCC method to form compact clusters by mining true hard negative samples, which bridges the gap between clustering and representation learning.
no code implementations • 17 Oct 2022 • Yanan Wu, Zhiyuan Zeng, Keqing He, Yutao Mou, Pei Wang, Yuanmeng Yan, Weiran Xu
In this paper, we propose a simple but strong energy-based score function to detect OOD where the energy scores of OOD samples are higher than IND samples.
1 code implementation • 17 Oct 2022 • Weihao Zeng, Keqing He, Zechen Wang, Dayuan Fu, Guanting Dong, Ruotong Geng, Pei Wang, Jingang Wang, Chaobo Sun, Wei Wu, Weiran Xu
Recent advances in neural approaches greatly improve task-oriented dialogue (TOD) systems which assist users to accomplish their goals.
1 code implementation • COLING 2022 • Yanan Wu, Zhiyuan Zeng, Keqing He, Yutao Mou, Pei Wang, Weiran Xu
Out-of-Domain (OOD) detection is a key component in a task-oriented dialog system, which aims to identify whether a query falls outside the predefined supported intent set.
1 code implementation • COLING 2022 • Yutao Mou, Keqing He, Yanan Wu, Pei Wang, Jingang Wang, Wei Wu, Yi Huang, Junlan Feng, Weiran Xu
Traditional intent classification models are based on a pre-defined intent set and only recognize limited in-domain (IND) intent classes.
no code implementations • 13 Jul 2022 • Danna Xue, Fei Yang, Pei Wang, Luis Herranz, Jinqiu Sun, Yu Zhu, Yanning Zhang
Accurate semantic segmentation models typically require significant computational resources, inhibiting their use in practical applications.
no code implementations • 26 Jun 2022 • Han Xu, Hao Qi, Kunyao Wang, Pei Wang, Guowei Zhang, Congcong Liu, Junsheng Jin, Xiwei Zhao, Zhangang Lin, Jinghe Hu, Jingping Shao
In this work, we propose a novel framework PCDF(Parallel-Computing Distributed Framework), allowing to split the computation cost into three parts and to deploy them in the pre-module in parallel with the retrieval stage, the middle-module for ranking ads, and the post-module for re-ranking ads with external items.
no code implementations • 26 May 2022 • Pushpi Paranamana, Pei Wang, Patrick Shafto
Evolution of beliefs of a society are a product of interactions between people (horizontal transmission) in the society over generations (vertical transmission).
1 code implementation • 8 Apr 2022 • Yinan Zhang, Pei Wang, Congcong Liu, Xiwei Zhao, Hao Qi, Jie He, Junsheng Jin, Changping Peng, Zhangang Lin, Jingping Shao
In this work, we address this problem by building bilateral interactive guidance between each user-item pair and proposing a new model named IA-GCN (short for InterActive GCN).
1 code implementation • CVPR 2022 • Pei Wang, Zhaowei Cai, Hao Yang, Gurumurthy Swaminathan, Nuno Vasconcelos, Bernt Schiele, Stefano Soatto
This is enabled by a unified architecture, Omni-DETR, based on the recent progress on student-teacher framework and end-to-end transformer based object detection.
Ranked #14 on Semi-Supervised Object Detection on COCO 2% labeled data
no code implementations • 28 Mar 2022 • Kyongsik Yun, Thomas Lu, Alexander Huyen, Patrick Hammer, Pei Wang
(2) A mediated hybrid recognition system in which a system is created by combining independent modules that detect each semantic feature.
1 code implementation • CVPR 2022 • Ming Xie, Yuxi Li, Yabiao Wang, Zekun Luo, Zhenye Gan, Zhongyi Sun, Mingmin Chi, Chengjie Wang, Pei Wang
Despite plenty of efforts focusing on improving the domain adaptation ability (DA) under unsupervised or few-shot semi-supervised settings, recently the solution of active learning started to attract more attention due to its suitability in transferring model in a more practical way with limited annotation resource on target data.
no code implementations • 17 Dec 2021 • Wei-Ting Chiu, Pei Wang, Patrick Shafto
Optimal transport (OT) formalizes the problem of finding an optimal coupling between probability measures given a cost matrix.
no code implementations • 2 Dec 2021 • Hugo Latapie, Ozkan Kilic, Kristinn R. Thorisson, Pei Wang, Patrick Hammer
A cognitive architecture aimed at cumulative learning must provide the necessary information and control structures to allow agents to learn incrementally and autonomously from their experience.
no code implementations • 9 Nov 2021 • Jian Zhu, Congcong Liu, Pei Wang, Xiwei Zhao, Guangpeng Chen, Junsheng Jin, Changping Peng, Zhangang Lin, Jingping Shao
Learning to capture feature relations effectively and efficiently is essential in click-through rate (CTR) prediction of modern recommendation systems.
no code implementations • 22 Oct 2021 • Sai Gurrapu, Feras A. Batarseh, Pei Wang, Md Nazmul Kabir Sikder, Nitish Gorentala, Gopinath Munisamy
Quantitative metrics that measure the global economy's equilibrium have strong and interdependent relationships with the agricultural supply chain and international trade flows.
no code implementations • 18 Oct 2021 • Jingqian Sun, Pei Wang, Ronghao Li, Mei Zhou
In this paper, an automatic and fast tree skeleton extraction method (FTSEM) based on voxel thinning is proposed.
no code implementations • 18 Sep 2021 • Zekun Li, Yufan Liu, Bing Li, Weiming Hu, Kebin Wu, Pei Wang
CDI builds the global attention and interaction among different levels in decoupled space which also solves the problem of heavy computation.
no code implementations • 2 Aug 2021 • Jingqian Sun, Pei Wang, Zhiyong Gao, Zichu Liu, Yaxin Li, Xiaozheng Gan
Tree point cloud was classified into wood points and leaf points by using intensity threshold, neighborhood density and voxelization successively.
no code implementations • CVPR 2021 • Pei Wang, Kabir Nagrecha, Nuno Vasconcelos
This is formulated as a problem of functional optimization where, at each teaching iteration, the teacher seeks to align the steepest descent directions of the risk of (1) the teaching set and (2) entire example population.
1 code implementation • ACL 2021 • Zhuoyuan Mao, Prakhar Gupta, Pei Wang, Chenhui Chu, Martin Jaggi, Sadao Kurohashi
Large-scale models for learning fixed-dimensional cross-lingual sentence representations like LASER (Artetxe and Schwenk, 2019b) lead to significant improvement in performance on downstream tasks.
no code implementations • CVPR 2021 • Pei Wang, Yijun Li, Krishna Kumar Singh, Jingwan Lu, Nuno Vasconcelos
We introduce an inversion based method, denoted as IMAge-Guided model INvErsion (IMAGINE), to generate high-quality and diverse images from only a single training sample.
1 code implementation • CVPR 2021 • Pei Wang, Yijun Li, Nuno Vasconcelos
Extensive research in neural style transfer methods has shown that the correlation between features extracted by a pre-trained VGG network has a remarkable ability to capture the visual style of an image.
1 code implementation • CVPR 2021 • Yunsheng Li, Lu Yuan, Yinpeng Chen, Pei Wang, Nuno Vasconcelos
However, such a static model is difficult to handle conflicts across multiple domains, and suffers from a performance degradation in both source domains and target domain.
no code implementations • 2 Mar 2021 • Jumei Yao, Weiwei Zhu, Richard N. Manchester, William A. Coles, Di Li, Na Wang, Michael Kramer, Daniel R. Stinebring, Yi Feng, Wenming Yan, Chenchen Miao, Mao Yuan, Pei Wang, Jiguang Lu
Observations have shown a strong tendency for alignment of the pulsar space velocity and spin axis in young pulsars but, up to now, these comparisons have been restricted to two dimensions.
Astrophysics of Galaxies
no code implementations • 16 Feb 2021 • Junqi Wang, Pei Wang, Patrick Shafto
Obtaining solutions to Optimal Transportation (OT) problems is typically intractable when the marginal spaces are continuous.
no code implementations • 15 Feb 2021 • Arash Givchi, Pei Wang, Junqi Wang, Patrick Shafto
We consider constrained policy optimization in Reinforcement Learning, where the constraints are in form of marginals on state visitations and global action executions.
no code implementations • 11 Feb 2021 • Hugo Latapie, Ozkan Kilic, Gaowen Liu, Yan Yan, Ramana Kompella, Pei Wang, Kristinn R. Thorisson, Adam Lawrence, Yuhong Sun, Jayanth Srinivasa
This paper introduces a new metamodel-based knowledge representation that significantly improves autonomous learning and adaptation.
no code implementations • 15 Jan 2021 • Pei Wang, Wei Sun, Qingsen Yan, Axi Niu, Rui Li, Yu Zhu, Jinqiu Sun, Yanning Zhang
To tackle the above problems, we present a deep two-branch network to deal with blurry images via a component divided module, which divides an image into two components based on the representation of blurry degree.
no code implementations • ICCV 2021 • Pei Wang, Nuno Vasconcelos
Preliminary studies show that the accuracy of classifiers trained on the final dataset is a function of the accuracy of the student annotators.
no code implementations • 15 Dec 2020 • Rui Li, Qing Mao, Pei Wang, Xiantuo He, Yu Zhu, Jinqiu Sun, Yanning Zhang
Based on this framework, we enhance the local feature representation by sampling and feeding the point-based features that locate on the semantic edges to an individual Semantic-guided Edge Enhancement module (SEEM), which is specifically designed for promoting depth estimation on the challenging semantic borders.
no code implementations • 6 Dec 2020 • Zichu Liu, Qing Zhang, Pei Wang, Yaxin Li, Jingqian Sun
The point cloud data of ten trees were tested by using the proposed method and a manual selection method.
no code implementations • 2 Nov 2020 • Pei Wang, Xiaoyu Zhou, Qingteng Zhao, Jun Wu, Qiuguo Zhu
Autonomous navigation has played an increasingly significant role in quadruped robot system.
Autonomous Navigation Motion Planning Robotics
no code implementations • NeurIPS Workshop TDA_and_Beyond 2020 • Pei Wang, Arash Givchi, Patrick Shafto
We consider the problem of learning a manifold from a teacher's demonstration.
1 code implementation • ECCV 2020 • Tz-Ying Wu, Pedro Morgado, Pei Wang, Chih-Hui Ho, Nuno Vasconcelos
Motivated by this, a deep realistic taxonomic classifier (Deep-RTC) is proposed as a new solution to the long-tail problem, combining realism with hierarchical predictions.
no code implementations • 24 May 2020 • Donghui Yan, Ying Xu, Pei Wang
We propose a structured approach for the estimation of the number of unreported cases, where we distinguish cases that arrive late in the reported numbers and those who had mild or no symptoms and thus were not captured by any medical system at all.
2 code implementations • CVPR 2020 • Pei Wang, Nuno Vasconcelos
It is argued that self-awareness, namely the ability to produce classification confidence scores, is important for the computation of discriminant explanations, which seek to identify regions where it is easy to discriminate between prediction and counter class.
no code implementations • 28 Feb 2020 • Zichu Liu, Qing Zhang, Pei Wang, Zhen Li, Huiru Wang
A classification method was proposed to classify the leaves and stems of potted plants automatically based on the point cloud data of the plants, which is a nondestructive acquisition.
no code implementations • ICML 2020 • Junqi Wang, Pei Wang, Patrick Shafto
We seek foundational theoretical results for cooperative inference by Bayesian agents through sequential data.
no code implementations • 30 Jan 2020 • Xiuxian Xu, Pei Wang, Xiaozheng Gan, Ya-Xin Li, Li Zhang, Qing Zhang, Mei Zhou, Yinghui Zhao, Xinwei Li
In coarse registration, point clouds produced by each scan are projected onto a spherical surface to generate a series of two-dimensional (2D) images, which are used to estimate the initial positions of multiple scans.
1 code implementation • NeurIPS 2019 • Pei Wang, Nuno Nvasconcelos
Since insecurity detection requires quantifying the difficulty of network predictions, deliberative explanations combine ideas from the literatures on visual explanations and assessment of classification difficulty.
no code implementations • 10 Oct 2019 • Pei Wang, Arash Givchi, Patrick Shafto
We consider the problem of learning a manifold from a teacher's demonstration.
no code implementations • NeurIPS 2020 • Pei Wang, Junqi Wang, Pushpi Paranamana, Patrick Shafto
Cooperative communication plays a central role in theories of human cognition, language, development, culture, and human-robot interaction.
1 code implementation • 11 Dec 2018 • Shuang Xu, Chun-Xia Zhang, Pei Wang, Jiangshe Zhang
Complex network reconstruction is a hot topic in many fields.
no code implementations • 4 Oct 2018 • Pei Wang, Pushpi Paranamana, Patrick Shafto
Cooperation information sharing is important to theories of human learning and has potential implications for machine learning.
no code implementations • ECCV 2018 • Pei Wang, Nuno Vasconcelos
It is argued that this should be a predictor independent of the classifier itself, but tuned to it, and learned without explicit supervision, so as to learn from its mistakes.
no code implementations • 27 Nov 2017 • Ping Guo, Fuqing Duan, Pei Wang, Yao Yao, Qian Yin, Xin Xin
To address these problems, we proposed a framework which combines deep convolution generative adversarial network (DCGAN) with support vector machine (SVM) to deal with imbalance class problem and to improve pulsar identification accuracy.
no code implementations • 11 Nov 2017 • Siqi Bao, Pei Wang, Tony C. W. Mok, Albert C. S. Chung
In this paper, a novel 3D deep learning network is proposed for brain MR image segmentation with randomized connection, which can decrease the dependency between layers and increase the network capacity.
no code implementations • 13 Sep 2017 • Xiaogang Su, Yaa Wonkye, Pei Wang, Xiangrong Yin
In the multiple linear regression setting, we propose a general framework, termed weighted orthogonal components regression (WOCR), which encompasses many known methods as special cases, including ridge regression and principal components regression.
no code implementations • 24 May 2017 • Scott Cheng-Hsin Yang, Yue Yu, Arash Givchi, Pei Wang, Wai Keen Vong, Patrick Shafto
Cooperative transmission of data fosters rapid accumulation of knowledge by efficiently combining experiences across learners.
no code implementations • 8 Feb 2017 • Pei Wang, Guochao Bu, Ronghao Li, Rui Zhao
The new scanner was named as BEE, which can scan the forest trees in three dimension.
no code implementations • 5 Jan 2016 • Pei Wang, Shuai Wang, Jiang Ming, Yufei Jiang, Dinghao Wu
We introduce translingual obfuscation, a new software obfuscation scheme which makes programs obscure by "misusing" the unique features of certain programming languages.
Cryptography and Security Software Engineering