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Retinal image registration, particularly for color fundus images, is a challenging yet essential task with diverse clinical applications. Existing registration methods for color fundus images typically rely on keypoints and descriptors for…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 David Rivas-Villar , Álvaro S. Hervella , José Rouco , Jorge Novo

We consider a document classification problem where document labels are absent but only relevant keywords of a target class and unlabeled documents are given. Although heuristic methods based on pseudo-labeling have been considered,…

Computation and Language · Computer Science 2019-10-31 Nontawat Charoenphakdee , Jongyeong Lee , Yiping Jin , Dittaya Wanvarie , Masashi Sugiyama

In information retrieval systems, search parameters are optimized to ensure high effectiveness based on a set of past searches and these optimized parameters are then used as the system configuration for all subsequent queries. A better…

Information Retrieval · Computer Science 2024-05-27 Josiane Mothe , Md Zia Ullah

Existing neural network architectures in computer vision -- whether designed by humans or by machines -- were typically found using both images and their associated labels. In this paper, we ask the question: can we find high-quality neural…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Chenxi Liu , Piotr Dollár , Kaiming He , Ross Girshick , Alan Yuille , Saining Xie

We consider the problem of unsupervised domain adaptation for image classification. To learn target-domain-aware features from the unlabeled data, we create a self-supervised pretext task by augmenting the unlabeled data with a certain type…

Computer Vision and Pattern Recognition · Computer Science 2020-10-16 L. Xiao , J. Xu , D. Zhao , Z. Wang , L. Wang , Y. Nie , B. Dai

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…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Dror Simon , Miriam Farber , Roman Goldenberg

Presentation bias is one of the key challenges when learning from implicit feedback in search engines, as it confounds the relevance signal. While it was recently shown how counterfactual learning-to-rank (LTR) approaches…

Information Retrieval · Computer Science 2018-12-14 Aman Agarwal , Ivan Zaitsev , Xuanhui Wang , Cheng Li , Marc Najork , Thorsten Joachims

Presentation bias is one of the key challenges when learning from implicit feedback in search engines, as it confounds the relevance signal with uninformative signals due to position in the ranking, saliency, and other presentation factors.…

Machine Learning · Computer Science 2018-06-12 Aman Agarwal , Ivan Zaitsev , Thorsten Joachims

Query auto-completion is a search engine feature whereby the system suggests completed queries as the user types. Recently, the use of a recurrent neural network language model was suggested as a method of generating query completions. We…

Computation and Language · Computer Science 2018-04-26 Aaron Jaech , Mari Ostendorf

Overconfidence is a common issue for deep neural networks, limiting their deployment in real-world applications. To better estimate confidence, existing methods mostly focus on fully-supervised scenarios and rely on training labels. In this…

Machine Learning · Computer Science 2023-07-21 Chen Li , Xiaoling Hu , Chao Chen

We introduce an unsupervised discriminative model for the task of retrieving experts in online document collections. We exclusively employ textual evidence and avoid explicit feature engineering by learning distributed word representations…

Information Retrieval · Computer Science 2017-09-19 Christophe Van Gysel , Maarten de Rijke , Marcel Worring

Consistency regularization-based methods are prevalent in semi-supervised learning (SSL) algorithms due to their exceptional performance. However, they mainly depend on domain-specific data augmentations, which are not usable in domains…

Machine Learning · Computer Science 2023-09-29 Matin Moezzi

Machine learning classification tasks often benefit from predicting a set of possible labels with confidence scores to capture uncertainty. However, existing methods struggle with the high-dimensional nature of the data and the lack of…

Machine Learning · Computer Science 2024-07-08 Rui Luo , Zhixin Zhou

Personalization generally improves the performance of queries but in a few cases it may also harms it. If we are able to predict and therefore to disable personalization for those situations, the overall performance will be higher and users…

Information Retrieval · Computer Science 2024-01-25 Eduardo Vicente-López , Luis M. de Campos , Juan M. Fernández-Luna , Juan F. Huete

Predicting attention regions of interest is an important yet challenging task for self-driving systems. Existing methodologies rely on large-scale labeled traffic datasets that are labor-intensive to obtain. Besides, the huge domain gap…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Pengfei Zhu , Mengshi Qi , Xia Li , Weijian Li , Huadong Ma

High-quality labeled datasets are essential for deep learning. Traditional manual annotation methods are not only costly and inefficient but also pose challenges in specialized domains where expert knowledge is needed. Self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-11-16 Zhaocong liu , Fa Zhang , Lin Cheng , Huanxi Deng , Xiaoyan Yang , Zhenyu Zhang , Chichun Zhou

Given an unlabeled dataset and an annotation budget, we study how to selectively label a fixed number of instances so that semi-supervised learning (SSL) on such a partially labeled dataset is most effective. We focus on selecting the right…

Machine Learning · Computer Science 2023-08-24 Xudong Wang , Long Lian , Stella X. Yu

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,…

Computation and Language · Computer Science 2022-10-20 Changhan Wang , Hirofumi Inaguma , Peng-Jen Chen , Ilia Kulikov , Yun Tang , Wei-Ning Hsu , Michael Auli , Juan Pino

Current text classification methods typically require a good number of human-labeled documents as training data, which can be costly and difficult to obtain in real applications. Humans can perform classification without seeing any labeled…

Computation and Language · Computer Science 2020-10-15 Yu Meng , Yunyi Zhang , Jiaxin Huang , Chenyan Xiong , Heng Ji , Chao Zhang , Jiawei Han

Configuring databases for efficient querying is a complex task, often carried out by a database administrator. Solving the problem of building indexes that truly optimize database access requires a substantial amount of database and domain…

Databases · Computer Science 2024-04-12 Gabriel Paludo Licks , Felipe Meneguzzi