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Pre-trained vision-language models (VLMs) have shown impressive performance on various downstream tasks by utilizing knowledge learned from large data. In general, the performance of VLMs on target tasks can be further improved by prompt…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Eulrang Cho , Jooyeon Kim , Hyunwoo J. Kim

In recent years, several unsupervised, "contrastive" learning algorithms in vision have been shown to learn representations that perform remarkably well on transfer tasks. We show that this family of algorithms maximizes a lower bound on…

Machine Learning · Computer Science 2020-06-08 Mike Wu , Chengxu Zhuang , Milan Mosse , Daniel Yamins , Noah Goodman

Crowdsourcing can collect many diverse ideas by prompting ideators individually, but this can generate redundant ideas. Prior methods reduce redundancy by presenting peers' ideas or peer-proposed prompts, but these require much human…

Human-Computer Interaction · Computer Science 2021-01-18 Samuel Rhys Cox , Yunlong Wang , Ashraf Abdul , Christian von der Weth , Brian Y. Lim

In this paper we propose ResnetCrowd, a deep residual architecture for simultaneous crowd counting, violent behaviour detection and crowd density level classification. To train and evaluate the proposed multi-objective technique, a new 100…

Computer Vision and Pattern Recognition · Computer Science 2017-05-31 Mark Marsden , Kevin McGuinness , Suzanne Little , Noel E. O'Connor

Crowd counting is a task worth exploring in modern society because of its wide applications such as public safety and video monitoring. Many CNN-based approaches have been proposed to improve the accuracy of estimation, but there are some…

Computer Vision and Pattern Recognition · Computer Science 2021-03-18 Bo Wei , Mulin Chen , Qi Wang , Xuelong Li

Uncertainty-aware semantic segmentation of the point clouds includes the predictive uncertainty estimation and the uncertainty-guided model optimization. One key challenge in the task is the efficiency of point-wise predictive distribution…

Computer Vision and Pattern Recognition · Computer Science 2022-01-20 Chao Qi , Jianqin Yin

The counting task, which plays a fundamental role in numerous applications (e.g., crowd counting, traffic statistics), aims to predict the number of objects with various densities. Existing object counting tasks are designed for a single…

Computer Vision and Pattern Recognition · Computer Science 2023-07-03 Shengqin Jiang , Qing Wang , Fengna Cheng , Yuankai Qi , Qingshan Liu

Referring image segmentation (RIS) aims to precisely segment referents in images through corresponding natural language expressions, yet relying on cost-intensive mask annotations. Weakly supervised RIS thus learns from image-text pairs to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Qiyuan Dai , Sibei Yang

In-context learning is a recent paradigm in natural language understanding, where a large pre-trained language model (LM) observes a test instance and a few training examples as its input, and directly decodes the output without any update…

Computation and Language · Computer Science 2022-05-10 Ohad Rubin , Jonathan Herzig , Jonathan Berant

This paper proposes an adaptive auxiliary task learning based approach for object counting problems. Unlike existing auxiliary task learning based methods, we develop an attention-enhanced adaptively shared backbone network to enable both…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Yanda Meng , Joshua Bridge , Meng Wei , Yitian Zhao , Yihong Qiao , Xiaoyun Yang , Xiaowei Huang , Yalin Zheng

The large language models have achieved superior performance on various natural language tasks. One major drawback of such approaches is they are resource-intensive in fine-tuning new datasets. Soft-prompt tuning presents a…

Computation and Language · Computer Science 2023-10-30 Guoxin Chen , Yiming Qian , Bowen Wang , Liangzhi Li

Crowd movement guidance has been a fascinating problem in various fields, such as easing traffic congestion in unusual events and evacuating people from an emergency-affected area. To grab the reins of crowds, there has been considerable…

Machine Learning · Computer Science 2021-07-20 Koh Takeuchi , Ryo Nishida , Hisashi Kashima , Masaki Onishi

Instance segmentation requires a large number of training samples to achieve satisfactory performance and benefits from proper data augmentation. To enlarge the training set and increase the diversity, previous methods have investigated…

Computer Vision and Pattern Recognition · Computer Science 2019-08-22 Hao-Shu Fang , Jianhua Sun , Runzhong Wang , Minghao Gou , Yong-Lu Li , Cewu Lu

Counting objects in digital images is a process that should be replaced by machines. This tedious task is time consuming and prone to errors due to fatigue of human annotators. The goal is to have a system that takes as input an image and…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Joseph Paul Cohen , Genevieve Boucher , Craig A. Glastonbury , Henry Z. Lo , Yoshua Bengio

Crowd estimation is a very challenging problem. The most recent study tries to exploit auditory information to aid the visual models, however, the performance is limited due to the lack of an effective approach for feature extraction and…

Computer Vision and Pattern Recognition · Computer Science 2021-09-07 Usman Sajid , Xiangyu Chen , Hasan Sajid , Taejoon Kim , Guanghui Wang

Pretrained vision-language models (VLMs) such as CLIP have shown impressive generalization capability in downstream vision tasks with appropriate text prompts. Instead of designing prompts manually, Context Optimization (CoOp) has been…

Computer Vision and Pattern Recognition · Computer Science 2023-02-15 Chengcheng Ma , Yang Liu , Jiankang Deng , Lingxi Xie , Weiming Dong , Changsheng Xu

Research in neural networks in the field of computer vision has achieved remarkable accuracy for point estimation. However, the uncertainty in the estimation is rarely addressed. Uncertainty quantification accompanied by point estimation…

Computer Vision and Pattern Recognition · Computer Science 2020-04-23 Min-hwan Oh , Peder A. Olsen , Karthikeyan Natesan Ramamurthy

Pre-trained vision-language models (VLMs) have shown remarkable generalization capabilities via prompting, which leverages VLMs as knowledge bases to extract information beneficial for downstream tasks. However, existing methods primarily…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Xiaoyu Qiu , Hao Feng , Yuechen Wang , Wengang Zhou , Houqiang Li

Prompt learning has recently become a very efficient transfer learning paradigm for Contrastive Language Image Pretraining (CLIP) models. Compared with fine-tuning the entire encoder, prompt learning can obtain highly competitive results by…

Machine Learning · Computer Science 2024-08-30 Guoyizhe Wei , Feng Wang , Anshul Shah , Rama Chellappa

Density map estimation enables accurate object counting in heavily occluded, and densely packed scenes where detection-based counting fails. In multi-class density estimation, class awareness can be introduced by modelling classes…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Villanelle O'Reilly , Jonathan Cox , Georgios Leontidis , Marc Hanheide , Petra Bosilj , James M. Brown