English
Related papers

Related papers: How to capitalize on a priori contrasts in linear …

200 papers

A common goal in clinical trials is to conduct tests on estimated treatment effects adjusted for covariates such as age or sex. Analysis of Covariance (ANCOVA) is often used in these scenarios to test the global null hypothesis of no…

Methodology · Statistics 2024-04-24 Matthias Becher , Ludwig A. Hothorn , Frank Konietschke

In experimental design, aliasing of effects occurs in fractional factorial experiments, where certain low order factorial effects are indistinguishable from certain high order interactions: low order contrasts may be orthogonal to one…

Methodology · Statistics 2024-08-30 Paul R. Rosenbaum , Jose R. Zubizarreta

Deep anomaly detection methods learn representations that separate between normal and anomalous images. Although self-supervised representation learning is commonly used, small dataset sizes limit its effectiveness. It was previously shown…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Tal Reiss , Yedid Hoshen

The properties of the normal distribution under linear transformation, as well the easy way to compute the covariance matrix of marginals and conditionals, offer a unique opportunity to get an insight about several aspects of uncertainties…

Data Analysis, Statistics and Probability · Physics 2018-02-12 Giulio D'Agostini

Noise contrastive learning is a popular technique for unsupervised representation learning. In this approach, a representation is obtained via reduction to supervised learning, where given a notion of semantic similarity, the learner tries…

Machine Learning · Computer Science 2021-06-21 Jordan T. Ash , Surbhi Goel , Akshay Krishnamurthy , Dipendra Misra

Estimations and evaluations of the main patterns of time series data in groups benefit large amounts of applications in various fields. Different from the classical auto-correlation time series analysis and the modern neural networks…

Applications · Statistics 2022-03-29 Rongjiao Ji , Alessandra Micheletti , Nataša Krklec Jerinkić , Zoranka Desnica

The typical contrastive self-supervised algorithm uses a similarity measure in latent space as the supervision signal by contrasting positive and negative images directly or indirectly. Although the utility of self-supervised algorithms has…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 David Torpey , Richard Klein

Node representation learning has demonstrated its effectiveness for various applications on graphs. Particularly, recent developments in contrastive learning have led to promising results in unsupervised node representation learning for a…

Machine Learning · Computer Science 2021-06-11 Öykü Deniz Köse , Yanning Shen

Computer vision algorithms, e.g. for face recognition, favour groups of individuals that are better represented in the training data. This happens because of the generalization that classifiers have to make. It is simpler to fit the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-15 Viktoriia Sharmanska , Lisa Anne Hendricks , Trevor Darrell , Novi Quadrianto

Long-term forecasting presents unique challenges due to the time and memory complexity of handling long sequences. Existing methods, which rely on sliding windows to process long sequences, struggle to effectively capture long-term…

Machine Learning · Computer Science 2024-03-26 Junwoo Park , Daehoon Gwak , Jaegul Choo , Edward Choi

Many research works have successfully extended algorithms such as evolutionary algorithms, reinforcement agents and neural networks using "opposition-based learning" (OBL). Two types of the "opposites" have been defined in the literature,…

Machine Learning · Computer Science 2016-09-19 Shivam Kalra , Aditya Sriram , Shahryar Rahnamayan , H. R. Tizhoosh

Recent work on object-centric world models aim to factorize representations in terms of objects in a completely unsupervised or self-supervised manner. Such world models are hypothesized to be a key component to address the generalization…

Machine Learning · Computer Science 2024-01-02 Kandan Ramakrishnan , R. James Cotton , Xaq Pitkow , Andreas S. Tolias

Recently, a method [7] was proposed to generate contrastive explanations for differentiable models such as deep neural networks, where one has complete access to the model. In this work, we propose a method, Model Agnostic Contrastive…

Machine Learning · Computer Science 2019-06-04 Amit Dhurandhar , Tejaswini Pedapati , Avinash Balakrishnan , Pin-Yu Chen , Karthikeyan Shanmugam , Ruchir Puri

The emoticons are symbolic representations that generally accompany the textual content to visually enhance or summarize the true intention of a written message. Although widely utilized in the realm of social media, the core semantics of…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Ananya Pandey , Dinesh Kumar Vishwakarma

Contrastive learning relies on constructing a collection of negative examples that are sufficiently hard to discriminate against positive queries when their representations are self-trained. Existing contrastive learning methods either…

Machine Learning · Computer Science 2021-03-08 Qianjiang Hu , Xiao Wang , Wei Hu , Guo-Jun Qi

The deployment of language models brings challenges in generating reliable information, especially when these models are fine-tuned using human preferences. To extract encoded knowledge without (potentially) biased human labels,…

Artificial Intelligence · Computer Science 2024-10-07 Walter Laurito , Sharan Maiya , Grégoire Dhimoïla , Owen , Yeung , Kaarel Hänni

Evaluating intervention effects on multiple outcomes is a central research goal in a wide range of quantitative sciences. It is thereby common to compare interventions among each other and with a control across several, potentially highly…

Many statistical analyses involve the comparison of multiple data sets collected under different conditions in order to identify the difference in the underlying distributions. A common challenge in multi-sample comparison is the presence…

Methodology · Statistics 2016-04-07 Li Ma , Jacopo Soriano

Medical datasets and especially biobanks, often contain extensive tabular data with rich clinical information in addition to images. In practice, clinicians typically have less data, both in terms of diversity and scale, but still wish to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Paul Hager , Martin J. Menten , Daniel Rueckert

Contrastive learning has revolutionized the field of computer vision, learning rich representations from unlabeled data, which generalize well to diverse vision tasks. Consequently, it has become increasingly important to explain these…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Fawaz Sammani , Boris Joukovsky , Nikos Deligiannis