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Classification models may often suffer from "structure imbalance" between training and testing data that may occur due to the deficient data collection process. This imbalance can be represented by the learning using privileged information…

Computer Vision and Pattern Recognition · Computer Science 2017-09-01 Michalis Vrigkas , Evangelos Kazakos , Christophoros Nikou , Ioannis A. Kakadiaris

In supervised machine learning, privileged information (PI) is information that is unavailable at inference, but is accessible during training time. Research on learning using privileged information (LUPI) aims to transfer the knowledge…

Machine Learning · Computer Science 2024-08-28 Danil Provodin , Bram van den Akker , Christina Katsimerou , Maurits Kaptein , Mykola Pechenizkiy

We introduce a learning framework called learning using privileged information (LUPI) to the computer vision field. We focus on the prototypical computer vision problem of teaching computers to recognize objects in images. We want the…

Computer Vision and Pattern Recognition · Computer Science 2014-10-03 Viktoriia Sharmanska , Novi Quadrianto , Christoph H. Lampert

In this work, a novel method based on the learning using privileged information (LUPI) paradigm for recognizing complex human activities is proposed that handles missing information during testing. We present a supervised probabilistic…

Computer Vision and Pattern Recognition · Computer Science 2017-09-20 Michalis Vrigkas , Evangelos Kazakos , Christophoros Nikou , Ioannis A. Kakadiaris

Learning using privileged information (LUPI) is a powerful heterogenous feature space machine learning framework that allows a machine learning model to learn from highly informative or privileged features which are available during…

Machine Learning · Computer Science 2019-03-26 Amina Asif , Muhammad Dawood , Fayyaz ul Amir Afsar Minhas

In domains where sample sizes are limited, efficient learning algorithms are critical. Learning using privileged information (LuPI) offers increased sample efficiency by allowing prediction models access to auxiliary information at training…

Machine Learning · Computer Science 2023-11-21 Bastian Jung , Fredrik D Johansson

We introduce a new unsupervised anomaly detection ensemble called SPI which can harness privileged information - data available only for training examples but not for (future) test examples. Our ideas build on the Learning Using Privileged…

Machine Learning · Computer Science 2018-05-25 Shubhranshu Shekhar , Leman Akoglu

A key challenge of affective computing research is discovering ways to reliably transfer affect models that are built in the laboratory to real world settings, namely in the wild. The existing gap between in vitro and in vivo affect…

Human-Computer Interaction · Computer Science 2021-07-23 Konstantinos Makantasis , David Melhart , Antonios Liapis , Georgios N. Yannakakis

Unlike machines, humans learn through rapid, abstract model-building. The role of a teacher is not simply to hammer home right or wrong answers, but rather to provide intuitive comments, comparisons, and explanations to a pupil. This is…

Machine Learning · Computer Science 2018-05-30 John Lambert , Ozan Sener , Silvio Savarese

We present a novel framework to exploit privileged information for recognition which is provided only during the training phase. Here, we focus on recognition task where images are provided as the main view and soft biometric traits…

Computer Vision and Pattern Recognition · Computer Science 2020-09-07 Seyed Mehdi Iranmanesh , Ali Dabouei , Nasser M. Nasrabadi

Prior knowledge can be used to improve predictive performance of learning algorithms or reduce the amount of data required for training. The same goal is pursued within the learning using privileged information paradigm which was recently…

Machine Learning · Statistics 2014-03-04 Maksim Lapin , Matthias Hein , Bernt Schiele

In school, a teacher plays an important role in various classroom teaching patterns. Likewise to this human learning activity, the learning using privileged information (LUPI) paradigm provides additional information generated by the…

Machine Learning · Statistics 2019-11-01 Peng-Bo Zhang , Zhi-Xin Yang

Learning using privileged information (LUPI) paradigm, which pioneered teacher-student interaction mechanism, makes the learning models use additional information in training stage. This paper is the first to propose an incremental learning…

Machine Learning · Computer Science 2022-03-15 Yanshuang Ao , Xinyu Zhou , Wei Dai

Incorporating additional knowledge in the learning process can be beneficial for several computer vision and machine learning tasks. Whether privileged information originates from a source domain that is adapted to a target domain, or as…

Computer Vision and Pattern Recognition · Computer Science 2017-08-31 Nikolaos Sarafianos , Michalis Vrigkas , Ioannis A. Kakadiaris

Leveraging privileged information (PI), or features available during training but not at test time, has recently been shown to be an effective method for addressing label noise. However, the reasons for its effectiveness are not well…

Using privileged information during training can improve the sample efficiency and performance of machine learning systems. This paradigm has been applied to reinforcement learning (RL), primarily in the form of distillation or auxiliary…

Machine Learning · Computer Science 2020-05-20 Pierre-Alexandre Kamienny , Kai Arulkumaran , Feryal Behbahani , Wendelin Boehmer , Shimon Whiteson

How can we reliably transfer affect models trained in controlled laboratory conditions (in-vitro) to uncontrolled real-world settings (in-vivo)? The information gap between in-vitro and in-vivo applications defines a core challenge of…

Human-Computer Interaction · Computer Science 2023-05-19 Konstantinos Makantasis , Kosmas Pinitas , Antonios Liapis , Georgios N. Yannakakis

In this paper, we propose a novel approach for learning multi-label classifiers with the help of privileged information. Specifically, we use similarity constraints to capture the relationship between available information and privileged…

Computer Vision and Pattern Recognition · Computer Science 2017-03-30 Shiyu Chen , Shangfei Wang , Tanfang Chen , Xiaoxiao Shi

Distributed representations of words have shown to be useful to improve the effectiveness of IR systems in many sub-tasks like query expansion, retrieval and ranking. Algorithms like word2vec, GloVe and others are also key factors in many…

Information Retrieval · Computer Science 2019-09-05 Tommaso Teofili , Niyati Chhaya

Given an imperfect predictor, we exploit additional features at test time to improve the predictions made, without retraining and without knowledge of the prediction function. This scenario arises if training labels or data are proprietary,…

Machine Learning · Computer Science 2021-11-05 Kwang In Kim , James Tompkin
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