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Human learners have the natural ability to use knowledge gained in one setting for learning in a different but related setting. This ability to transfer knowledge from one task to another is essential for effective learning. In this paper,…

统计理论 · 数学 2019-06-10 T. Tony Cai , Hongji Wei

Outliers introduce significant training challenges in neural networks by propagating erroneous gradients, which can degrade model performance and generalization. We propose the Z-Error Loss, a statistically principled approach that…

机器学习 · 计算机科学 2025-06-04 Guillaume Godin

Standard classification theory assumes that the distribution of images in the test and training sets are identical. Unfortunately, real-life scenarios typically feature unseen data (``out-of-distribution data") which is different from data…

计算机视觉与模式识别 · 计算机科学 2024-11-21 Gianluca Barone , Aashrit Cunchala , Rudy Nunez

Outlier detection is a fundamental task in data mining and has many applications including detecting errors in databases. While there has been extensive prior work on methods for outlier detection, modern datasets often have sizes that are…

机器学习 · 计算机科学 2019-08-01 Laure Berti-Equille , Ji Meng Loh , Saravanan Thirumuruganathan

This paper is based on a previous publication [29]. Our work extends exception mining and outlier detection to the case of object-relational data. Object-relational data represent a complex heterogeneous network [12], which comprises…

人工智能 · 计算机科学 2018-07-03 Fatemeh Riahi , Oliver Schulte

Transfer learning is a machine learning paradigm where the knowledge from one task is utilized to resolve the problem in a related task. On the one hand, it is conceivable that knowledge from one task could be useful for solving a related…

机器学习 · 计算机科学 2021-05-05 Xuetong Wu , Jonathan H. Manton , Uwe Aickelin , Jingge Zhu

With the emergence of large-scale pre-trained neural networks, methods to adapt such "foundation" models to data-limited downstream tasks have become a necessity. Fine-tuning, preference optimization, and transfer learning have all been…

机器学习 · 统计学 2025-07-09 Javan Tahir , Surya Ganguli , Grant M. Rotskoff

Outlier detection is a core task in data mining with a plethora of algorithms that have enjoyed wide scale usage. Existing algorithms are primarily focused on detection, that is the identification of outliers in a given dataset. In this…

机器学习 · 计算机科学 2019-11-11 Yue Wu , Leman Akoglu , Ian Davidson

The similarity of feature representations plays a pivotal role in the success of problems related to domain adaptation. Feature similarity includes both the invariance of marginal distributions and the closeness of conditional distributions…

机器学习 · 计算机科学 2022-01-10 Ammar Shaker , Shujian Yu , Daniel Oñoro-Rubio

Motivated by problems of anomaly detection, this paper implements the Neyman-Pearson paradigm to deal with asymmetric errors in binary classification with a convex loss. Given a finite collection of classifiers, we combine them and obtain a…

机器学习 · 统计学 2011-03-01 Philippe Rigollet , Xin Tong

In recent years, rapid technological advancements and expanded Internet access have led to a significant rise in anomalies within network traffic and time-series data. Prompt detection of these irregularities is crucial for ensuring service…

机器学习 · 计算机科学 2025-11-10 Mahshid Rezakhani , Tolunay Seyfi , Fatemeh Afghah

Transfer learning has become an essential technique to exploit information from the source domain to boost performance of the target task. Despite the prevalence in high-dimensional data, heterogeneity and heavy tails are insufficiently…

机器学习 · 统计学 2023-11-07 Jiayu Huang , Mingqiu Wang , Yuanshan Wu

In a corpus of data, outliers are either errors: mistakes in the data that are counterproductive, or are unique: informative samples that improve model robustness. Identifying outliers can lead to better datasets by (1) removing noise in…

The problem of detecting whether a test sample is from in-distribution (i.e., training distribution by a classifier) or out-of-distribution sufficiently different from it arises in many real-world machine learning applications. However, the…

机器学习 · 统计学 2018-02-27 Kimin Lee , Honglak Lee , Kibok Lee , Jinwoo Shin

The increased success of Deep Learning (DL) has recently sparked large-scale deployment of DL models in many diverse industry segments. Yet, a crucial weakness of supervised model is the inherent difficulty in handling out-of-distribution…

机器学习 · 计算机科学 2021-07-15 Lixuan Yang , Dario Rossi

When the transferable set is unknowable, transfering informative knowledge as much as possible\textemdash a principle we refer to as \emph{sufficiency}, becomes crucial for enhancing transfer learning effectiveness. However, existing…

统计方法学 · 统计学 2025-07-22 Xiyuan Zhang , Huihang Liu , Xinyu Zhang

The accuracy of machine learning interatomic potentials suffers from reference data that contains numerical noise. Often originating from unconverged or inconsistent electronic-structure calculations, this noise is challenging to identify.…

机器学习 · 统计学 2026-02-10 Terry C. W. Lam , Niamh O'Neill , Christoph Schran , Lars L. Schaaf

Outliers widely occur in big-data applications and may severely affect statistical estimation and inference. In this paper, a framework of outlier-resistant estimation is introduced to robustify an arbitrarily given loss function. It has a…

统计方法学 · 统计学 2023-04-20 Yiyuan She , Zhifeng Wang , Jiahui Shen

Outliers are the points which are different from or inconsistent with the rest of the data. They can be novel, new, abnormal, unusual or noisy information. Outliers are sometimes more interesting than the majority of the data. The main…

计算机视觉与模式识别 · 计算机科学 2014-06-20 Singh Vijendra , Pathak Shivani

We analyze new generalization bounds for deep learning models trained by transfer learning from a source to a target task. Our bounds utilize a quantity called the majority predictor accuracy, which can be computed efficiently from data. We…

机器学习 · 计算机科学 2022-09-14 Cuong N. Nguyen , Lam Si Tung Ho , Vu Dinh , Tal Hassner , Cuong V. Nguyen