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Continual and multi-task learning are common machine learning approaches to learning from multiple tasks. The existing works in the literature often assume multi-task learning as a sensible performance upper bound for various continual…

机器学习 · 计算机科学 2022-10-27 Zihao Wu , Huy Tran , Hamed Pirsiavash , Soheil Kolouri

Principal component analysis (PCA) frequently suffers from the disturbance of outliers and thus a spectrum of robust extensions and variations of PCA have been developed. However, existing extensions of PCA treat all samples equally even…

机器学习 · 计算机科学 2021-03-23 Rui Zhang , Hongyuan Zhang , Xuelong Li

Principal component analysis (PCA) is perhaps the most widely used method for data dimensionality reduction. A key question in PCA is deciding how many factors to retain. This manuscript describes a new approach to automatically selecting…

统计方法学 · 统计学 2026-02-10 Enes Makalic , Daniel F. Schmidt

Existing literature in Continual Learning (CL) has focused on overcoming catastrophic forgetting, the inability of the learner to recall how to perform tasks observed in the past. There are however other desirable properties of a CL system,…

机器学习 · 计算机科学 2021-02-15 Tom Veniat , Ludovic Denoyer , Marc'Aurelio Ranzato

Representation multi-task learning (MTL) has achieved tremendous success in practice. However, the theoretical understanding of these methods is still lacking. Most existing theoretical works focus on cases where all tasks share the same…

机器学习 · 统计学 2025-07-08 Ye Tian , Yuqi Gu , Yang Feng

In this paper, we investigate continual learning performance metrics used in class incremental learning strategies for continual learning (CL) using some high performing methods. We investigate especially mean task accuracy. First, we show…

机器学习 · 计算机科学 2024-04-11 Konaté Mohamed Abbas , Anne-Françoise Yao , Thierry Chateau , Pierre Bouges

While machine-type communication (MTC) devices generate considerable amounts of data, they often cannot process the data due to limited energy and computational power. To empower MTC with intelligence, edge machine learning has been…

信息论 · 计算机科学 2020-07-20 Shuai Wang , Yik-Chung Wu , Minghua Xia , Rui Wang , H. Vincent Poor

Multi-task learning (MTL) has become increasingly popular in natural language processing (NLP) because it improves the performance of related tasks by exploiting their commonalities and differences. Nevertheless, it is still not understood…

计算与语言 · 计算机科学 2023-02-16 Zhihan Zhang , Wenhao Yu , Mengxia Yu , Zhichun Guo , Meng Jiang

Meta-learning leverages related source tasks to learn an initialization that can be quickly fine-tuned to a target task with limited labeled examples. However, many popular meta-learning algorithms, such as model-agnostic meta-learning…

机器学习 · 统计学 2020-03-24 Diana Cai , Rishit Sheth , Lester Mackey , Nicolo Fusi

Meta-learning, or learning-to-learn, seeks to design algorithms that can utilize previous experience to rapidly learn new skills or adapt to new environments. Representation learning -- a key tool for performing meta-learning -- learns a…

机器学习 · 计算机科学 2022-01-04 Nilesh Tripuraneni , Chi Jin , Michael I. Jordan

By leveraging large amounts of product data collected across hundreds of live e-commerce websites, we construct 1000 unique classification tasks that share similarly-structured input data, comprised of both text and images. These…

人工智能 · 计算机科学 2021-07-29 Cameron R. Wolfe , Keld T. Lundgaard

Principal component analysis (PCA) aims at estimating the direction of maximal variability of a high-dimensional dataset. A natural question is: does this task become easier, and estimation more accurate, when we exploit additional…

信息论 · 计算机科学 2014-06-19 Andrea Montanari , Emile Richard

Multi-task learning (MTL) has gained significant popularity in recommender systems as it enables simultaneous optimization of multiple objectives. A key challenge in MTL is negative transfer, but existing studies explored negative transfer…

信息检索 · 计算机科学 2024-01-09 Liangcai Su , Junwei Pan , Ximei Wang , Xi Xiao , Shijie Quan , Xihua Chen , Jie Jiang

Sampling-based methods have become a cornerstone of contemporary approaches to Model Predictive Control (MPC), as they make no restrictions on the differentiability of the dynamics or cost function and are straightforward to parallelize.…

机器人学 · 计算机科学 2022-12-07 Jacob Sacks , Byron Boots

Shared training approaches, such as multi-task learning (MTL) and gradient-based meta-learning, are widely used in various machine learning applications, but they often suffer from negative transfer, leading to performance degradation in…

机器学习 · 计算机科学 2024-12-10 Anshul Thakur , Yichen Huang , Soheila Molaei , Yujiang Wang , David A. Clifton

A mainstream type of current self-supervised learning methods pursues a general-purpose representation that can be well transferred to downstream tasks, typically by optimizing on a given pretext task such as instance discrimination. In…

计算机视觉与模式识别 · 计算机科学 2022-10-21 Xin Liu , Zhongdao Wang , Yali Li , Shengjin Wang

Probabilistic Circuits (PCs) have emerged as an efficient framework for representing and learning complex probability distributions. Nevertheless, the existing body of research on PCs predominantly concentrates on data-driven parameter…

机器学习 · 计算机科学 2024-12-20 Athresh Karanam , Saurabh Mathur , Sahil Sidheekh , Sriraam Natarajan

Unlearning in large language models (LLMs) aims to remove specified data, but its efficacy is typically assessed with task-level metrics like accuracy and perplexity. We show that these metrics can be misleading, as models can appear to…

计算与语言 · 计算机科学 2026-05-19 Xiaoyu Xu , Xiang Yue , Yang Liu , Qingqing Ye , Huadi Zheng , Peizhao Hu , Minxin Du , Haibo Hu

We present a multi-task learning approach to jointly estimate the means of multiple independent data sets. The proposed multi-task averaging (MTA) algorithm results in a convex combination of the single-task maximum likelihood estimates. We…

机器学习 · 统计学 2015-03-19 Sergey Feldman , Bela A. Frigyik , Maya R. Gupta

We present a Multi-Task Learning (MTL) approach for improving predictions for rare (e.g., <1%) conversion events in online advertising. The conversions are classified into "rare" or "frequent" types based on historical statistics. The model…

信息检索 · 计算机科学 2025-07-29 Yuval Dishi , Ophir Friedler , Yonatan Karni , Natalia Silberstein , Yulia Stolin