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A typical assumption in state-of-the-art self-localization models is that an annotated training dataset is available for the target workspace. However, this is not necessarily true when a robot travels around the general open world. This…

Robotics · Computer Science 2024-09-27 Kenta Tsukahara , Kanji Tanaka

Open Set Recognition (OSR) extends image classification to an open-world setting, by simultaneously classifying known classes and identifying unknown ones. While conventional OSR approaches can detect Out-of-Distribution (OOD) samples, they…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Piyapat Saranrittichai , Chaithanya Kumar Mummadi , Claudia Blaiotta , Mauricio Munoz , Volker Fischer

We consider the problem of \textit{true} open-world semi-supervised node classification, in which nodes in a graph either belong to known or new classes, with the latter not present during training. Existing methods detect and reject new…

Machine Learning · Computer Science 2024-06-17 Marcel Hoffmann , Lukas Galke , Ansgar Scherp

Open-world semi-supervised learning (OWSSL) extends conventional semi-supervised learning to open-world scenarios by taking account of novel categories in unlabeled datasets. Despite the recent advancements in OWSSL, the success often…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Seongheon Park , Hyuk Kwon , Kwanghoon Sohn , Kibok Lee

Semi-supervised learning (SSL) is one of the dominant approaches to address the annotation bottleneck of supervised learning. Recent SSL methods can effectively leverage a large repository of unlabeled data to improve performance while…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Mamshad Nayeem Rizve , Navid Kardan , Salman Khan , Fahad Shahbaz Khan , Mubarak Shah

Real-world classification tasks are frequently required to work in an open-set setting. This is especially challenging for few-shot learning problems due to the small sample size for each known category, which prevents existing open-set…

Computer Vision and Pattern Recognition · Computer Science 2021-09-15 Jedrzej Kozerawski , Matthew Turk

Generalized category discovery (GCD) is a recently proposed open-world task. Given a set of images consisting of labeled and unlabeled instances, the goal of GCD is to automatically cluster the unlabeled samples using information…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Xiangli Yang , Xinglin Pan , Irwin King , Zenglin Xu

This paper provides a framework to hash images containing instances of unknown object classes. In many object recognition problems, we might have access to huge amount of data. It may so happen that even this huge data doesn't cover the…

Computer Vision and Pattern Recognition · Computer Science 2016-10-11 Shubham Pachori , Shanmuganathan Raman

Learning the compatibility between fashion items across categories is a key task in fashion analysis, which can decode the secret of clothing matching. The main idea of this task is to map items into a latent style space where compatible…

Information Retrieval · Computer Science 2019-08-01 Zekun Li , Zeyu Cui , Shu Wu , Xiaoyu Zhang , Liang Wang

In open-world learning, an agent starts with a set of known classes, detects, and manages things that it does not know, and learns them over time from a non-stationary stream of data. Open-world learning is related to but also distinct from…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Mohsen Jafarzadeh , Akshay Raj Dhamija , Steve Cruz , Chunchun Li , Touqeer Ahmad , Terrance E. Boult

Deep Learning heavily depends on large labeled datasets which limits further improvements. While unlabeled data is available in large amounts, in particular in image recognition, it does not fulfill the closed world assumption of…

Machine Learning · Computer Science 2020-12-24 Maximilian Augustin , Matthias Hein

Unsupervised models can provide supplementary soft constraints to help classify new target data under the assumption that similar objects in the target set are more likely to share the same class label. Such models can also help detect…

Machine Learning · Computer Science 2015-03-13 Ayan Acharya , Eduardo R. Hruschka , Joydeep Ghosh , Badrul Sarwar , Jean-David Ruvini

Domain adaptation for visual recognition has undergone great progress in the past few years. Nevertheless, most existing methods work in the so-called closed-set scenario, assuming that the classes depicted by the target images are exactly…

Computer Vision and Pattern Recognition · Computer Science 2018-06-01 Mahsa Baktashmotlagh , Masoud Faraki , Tom Drummond , Mathieu Salzmann

A fundamental limitation of applying semi-supervised learning in real-world settings is the assumption that unlabeled test data contains only classes previously encountered in the labeled training data. However, this assumption rarely holds…

Machine Learning · Computer Science 2022-01-27 Kaidi Cao , Maria Brbic , Jure Leskovec

This work introduces a model that can recognize objects in images even if no training data is available for the objects. The only necessary knowledge about the unseen categories comes from unsupervised large text corpora. In our zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2013-03-21 Richard Socher , Milind Ganjoo , Hamsa Sridhar , Osbert Bastani , Christopher D. Manning , Andrew Y. Ng

Object proposal generation is often the first step in many detection models. It is lucrative to train a good proposal model, that generalizes to unseen classes. This could help scaling detection models to larger number of classes with fewer…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Rui Wang , Dhruv Mahajan , Vignesh Ramanathan

In the generalized zero-shot learning, synthesizing unseen data with generative models has been the most popular method to address the imbalance of training data between seen and unseen classes. However, this method requires that the unseen…

Computer Vision and Pattern Recognition · Computer Science 2020-02-04 Xinsheng Wang , Shanmin Pang , Jihua Zhu

State-of-the-art weakly supervised text classification methods, while significantly reduced the required human supervision, still requires the supervision to cover all the classes of interest. This is never easy to meet in practice when…

Computation and Language · Computer Science 2023-11-27 Tianle Wang , Zihan Wang , Weitang Liu , Jingbo Shang

Reliable confidence estimation for deep neural classifiers is a challenging yet fundamental requirement in high-stakes applications. Unfortunately, modern deep neural networks are often overconfident for their erroneous predictions. In this…

Machine Learning · Computer Science 2023-03-31 Fei Zhu , Zhen Cheng , Xu-Yao Zhang , Cheng-Lin Liu

Supervised deep learning models require significant amount of labeled data to achieve an acceptable performance on a specific task. However, when tested on unseen data, the models may not perform well. Therefore, the models need to be…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Akshit Achara , Ram Krishna Pandey