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Multiple instance learning (MIL) problem is currently solved from either bag-classification or instance-classification perspective, both of which ignore important information contained in some instances and result in limited performance.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Yingfan Ma , Xiaoyuan Luo , Mingzhi Yuan , Xinrong Chen , Manning Wang

Multiple-instance learning is a subset of weakly supervised learning where labels are applied to sets of instances rather than the instances themselves. Under the standard assumption, a set is positive only there is if at least one instance…

Machine Learning · Computer Science 2021-05-05 Daniel Grahn

Recent advances in person re-identification have demonstrated enhanced discriminability, especially with supervised learning or transfer learning. However, since the data requirements---including the degree of data curations---are becoming…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Kshitij Nikhal , Benjamin S. Riggan

Multiple instance learning (MIL) is a form of weakly supervised learning where training instances are arranged in sets, called bags, and a label is provided for the entire bag. This formulation is gaining interest because it naturally fits…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Marc-André Carbonneau , Veronika Cheplygina , Eric Granger , Ghyslain Gagnon

We present a semi-supervised approach that localizes multiple unknown object instances in long videos. We start with a handful of labeled boxes and iteratively learn and label hundreds of thousands of object instances. We propose criteria…

Computer Vision and Pattern Recognition · Computer Science 2015-05-22 Ishan Misra , Abhinav Shrivastava , Martial Hebert

In unsupervised ensemble learning, one obtains predictions from multiple sources or classifiers, yet without knowing the reliability and expertise of each source, and with no labeled data to assess it. The task is to combine these possibly…

Machine Learning · Computer Science 2016-02-24 Ariel Jaffe , Ethan Fetaya , Boaz Nadler , Tingting Jiang , Yuval Kluger

Image-text multimodal representation learning aligns data across modalities and enables important medical applications, e.g., image classification, visual grounding, and cross-modal retrieval. In this work, we establish a connection between…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Peiqi Wang , William M. Wells , Seth Berkowitz , Steven Horng , Polina Golland

This paper presents a simple unsupervised visual representation learning method with a pretext task of discriminating all images in a dataset using a parametric, instance-level classifier. The overall framework is a replica of a supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-02-10 Yu Liu , Lianghua Huang , Pan Pan , Bin Wang , Yinghui Xu , Rong Jin

In many pattern recognition problems, a single feature vector is not sufficient to describe an object. In multiple instance learning (MIL), objects are represented by sets (\emph{bags}) of feature vectors (\emph{instances}). This requires…

Computer Vision and Pattern Recognition · Computer Science 2018-06-22 Veronika Cheplygina , David M. J. Tax

In real-world applications, as data availability increases, obtaining labeled data for machine learning (ML) projects remains challenging due to the high costs and intensive efforts required for data annotation. Many ML projects,…

Machine Learning · Computer Science 2024-12-24 Ismail Hakki Karaman , Gulser Koksal , Levent Eriskin , Salih Salihoglu

In multiple instance learning, objects are sets (bags) of feature vectors (instances) rather than individual feature vectors. In this paper we address the problem of how these bags can best be represented. Two standard approaches are to use…

Machine Learning · Statistics 2016-07-12 Veronika Cheplygina , David M. J. Tax , Marco Loog

Despite the substantial progress of active learning for image recognition, there still lacks an instance-level active learning method specified for object detection. In this paper, we propose Multiple Instance Active Object Detection…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Tianning Yuan , Fang Wan , Mengying Fu , Jianzhuang Liu , Songcen Xu , Xiangyang Ji , Qixiang Ye

We propose a general formulation, called Multi-X, for multi-class multi-instance model fitting - the problem of interpreting the input data as a mixture of noisy observations originating from multiple instances of multiple classes. We…

Computer Vision and Pattern Recognition · Computer Science 2017-11-17 Daniel Barath , Jiri Matas

Clustering is an unsupervised machine learning methodology where unlabeled elements/objects are grouped together aiming to the construction of well-established clusters that their elements are classified according to their similarity. The…

Machine Learning · Statistics 2023-10-20 Dimitrios Saligkaras , Vasileios E. Papageorgiou

Multiple instance learning is qualified for many pattern recognition tasks with weakly annotated data. The combination of artificial neural network and multiple instance learning offers an end-to-end solution and has been widely utilized.…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Jingjun Yi , Beichen Zhou

The Multiple Instance Hybrid Estimator for discriminative target characterization from imprecisely labeled hyperspectral data is presented. In many hyperspectral target detection problems, acquiring accurately labeled training data is…

Computer Vision and Pattern Recognition · Computer Science 2019-03-20 Changzhe Jiao , Chao Chen , Ronald G. McGarvey , Stephanie Bohlman , Licheng Jiao , Alina Zare

We introduce a new paradigm to investigate unsupervised learning, reducing unsupervised learning to supervised learning. Specifically, we mitigate the subjectivity in unsupervised decision-making by leveraging knowledge acquired from prior,…

Machine Learning · Computer Science 2017-01-04 Vikas K. Garg , Adam Tauman Kalai

All instance perception tasks aim at finding certain objects specified by some queries such as category names, language expressions, and target annotations, but this complete field has been split into multiple independent subtasks. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Bin Yan , Yi Jiang , Jiannan Wu , Dong Wang , Ping Luo , Zehuan Yuan , Huchuan Lu

In this paper we present an unsupervised method to learn the weights with which the scores of multiple classifiers must be combined in classifier fusion settings. We also introduce a novel metric for ranking instances based on an index…

Machine Learning · Computer Science 2015-02-09 Anurag Kumar , Bhiksha Raj

Semi-supervised learning deals with the problem of how, if possible, to take advantage of a huge amount of not classified data, to perform classification, in situations when, typically, the labelled data are few. Even though this is not…

Statistics Theory · Mathematics 2017-12-18 Alejandro Cholaquidis , Ricardo Fraiman , Mariela Sued