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Auto-annotation by ensemble of models is an efficient method of learning on unlabeled data. Wrong or inaccurate annotations generated by the ensemble may lead to performance degradation of the trained model. To deal with this problem we…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Dror Simon , Miriam Farber , Roman Goldenberg

Semi-supervised medical image segmentation has gained growing interest due to its ability to utilize unannotated data. The current state-of-the-art methods mostly rely on pseudo-labeling within a co-training framework. These methods depend…

图像与视频处理 · 电气工程与系统科学 2024-05-14 Suruchi Kumari , Pravendra Singh

Evidence suggests that networks trained on large datasets generalize well not solely because of the numerous training examples, but also class diversity which encourages learning of enriched features. This raises the question of whether…

Annotating time boundaries of sound events is labor-intensive, limiting the scalability of strongly supervised learning in audio detection. To reduce annotation costs, weakly-supervised learning with only clip-level labels has been widely…

声音 · 计算机科学 2025-10-30 Keisuke Imoto

Labeling social-media data for custom dimensions of toxicity and social bias is challenging and labor-intensive. Existing transfer and active learning approaches meant to reduce annotation effort require fine-tuning, which suffers from…

计算与语言 · 计算机科学 2022-11-23 Rafal Kocielnik , Sara Kangaslahti , Shrimai Prabhumoye , Meena Hari , R. Michael Alvarez , Anima Anandkumar

In temporal action segmentation, Timestamp supervision requires only a handful of labelled frames per video sequence. For unlabelled frames, previous works rely on assigning hard labels, and performance rapidly collapses under subtle…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Rahul Rahaman , Dipika Singhania , Alexandre Thiery , Angela Yao

Temporal action segmentation (TAS) divides untrimmed videos into labeled action segments. While fully supervised methods have advanced the field, challenges such as action variability, ambiguous boundaries, and high annotation costs remain,…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Yeo Keat Ee , Debaditya Roy , Chen Li , Hao Zhang , Basura Fernando

Deep-Learning-based video recognition has shown promising improvements along with the development of large-scale datasets and spatiotemporal network architectures. In image recognition, learning spatially invariant features is a key factor…

计算机视觉与模式识别 · 计算机科学 2020-08-14 Taeoh Kim , Hyeongmin Lee , MyeongAh Cho , Ho Seong Lee , Dong Heon Cho , Sangyoun Lee

Temporal modeling is crucial for various video learning tasks. Most recent approaches employ either factorized (2D+1D) or joint (3D) spatial-temporal operations to extract temporal contexts from the input frames. While the former is more…

计算机视觉与模式识别 · 计算机科学 2023-01-03 Yizhou Zhao , Zhenyang Li , Xun Guo , Yan Lu

In Active Domain Adaptation (ADA), one uses Active Learning (AL) to select a subset of images from the target domain, which are then annotated and used for supervised domain adaptation (DA). Given the large performance gap between…

计算机视觉与模式识别 · 计算机科学 2022-10-14 Sharat Agarwal , Saket Anand , Chetan Arora

Class-incremental learning is a challenging problem, where the goal is to train a model that can classify data from an increasing number of classes over time. With the advancement of vision-language pre-trained models such as CLIP, they…

计算机视觉与模式识别 · 计算机科学 2024-07-22 Linlan Huang , Xusheng Cao , Haori Lu , Xialei Liu

Temporal action segmentation tags action labels for every frame in an input untrimmed video containing multiple actions in a sequence. For the task of temporal action segmentation, we propose an encoder-decoder-style architecture named…

计算机视觉与模式识别 · 计算机科学 2022-12-22 Dipika Singhania , Rahul Rahaman , Angela Yao

In this paper, we propose a set of features called temporal accumulative features (TAF) for representing and recognizing isolated sign language gestures. By incorporating sign language specific constructs to better represent the unique…

计算机视觉与模式识别 · 计算机科学 2020-04-06 Ahmet Alp Kındıroğlu , Oğulcan Özdemir , Lale Akarun

Current state-of-the-art classification and detection algorithms rely on supervised training. In this work we study unsupervised feature learning in the context of temporally coherent video data. We focus on feature learning from unlabeled…

计算机视觉与模式识别 · 计算机科学 2015-04-17 Ross Goroshin , Joan Bruna , Jonathan Tompson , David Eigen , Yann LeCun

Prompt learning has proven effective in adapting vision language models for downstream tasks. However, existing methods usually append learnable prompt tokens solely with the category names to obtain textual features, which fails to fully…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Tong Ding , Wanhua Li , Zhongqi Miao , Hanspeter Pfister

This paper proposes a novel training scheme for fast matching models in Search Ads, which is motivated by the real challenges in model training. The first challenge stems from the pursuit of high throughput, which prohibits the deployment…

信息检索 · 计算机科学 2019-04-23 Xue Li , Zhipeng Luo , Hao Sun , Jianjin Zhang , Weihao Han , Xianqi Chu , Liangjie Zhang , Qi Zhang

Data scarcity has been the main factor that hinders the progress of event extraction. To overcome this issue, we propose a Self-Training with Feedback (STF) framework that leverages the large-scale unlabeled data and acquires feedback for…

计算与语言 · 计算机科学 2023-08-03 Zhiyang Xu , Jay-Yoon Lee , Lifu Huang

Few-shot learning allows machines to classify novel classes using only a few labeled samples. Recently, few-shot segmentation aiming at semantic segmentation on low sample data has also seen great interest. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2022-02-17 Jun Seo , Young-Hyun Park , Sung Whan Yoon , Jaekyun Moon

Temporal action localization presents a trade-off between test performance and annotation-time cost. Fully supervised methods achieve good performance with time-consuming boundary annotations. Weakly supervised methods with cheaper…

计算机视觉与模式识别 · 计算机科学 2020-07-06 Xinpeng Ding , Nannan Wang , Xinbo Gao , Jie Li , Xiaoyu Wang , Tongliang Liu

Since the preparation of labeled data for training semantic segmentation networks of point clouds is a time-consuming process, weakly supervised approaches have been introduced to learn from only a small fraction of data. These methods are…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Gengxin Liu , Oliver van Kaick , Hui Huang , Ruizhen Hu