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The success of meta-learning on existing benchmarks is predicated on the assumption that the distribution of meta-training tasks covers meta-testing tasks. Frequent violation of the assumption in applications with either insufficient tasks…

机器学习 · 计算机科学 2022-06-10 Yichen Wu , Long-Kai Huang , Ying Wei

In natural language processing and vision, pretraining is utilized to learn effective representations. Unfortunately, the success of pretraining does not easily carry over to time series due to potential mismatch between sources and target.…

机器学习 · 计算机科学 2024-02-26 Maurice Kraus , Felix Divo , David Steinmann , Devendra Singh Dhami , Kristian Kersting

Standard meta-learning for representation learning aims to find a common representation to be shared across multiple tasks. The effectiveness of these methods is often limited when the nuances of the tasks' distribution cannot be captured…

机器学习 · 计算机科学 2021-03-31 Giulia Denevi , Massimiliano Pontil , Carlo Ciliberto

We propose a novel approach for generating high-quality, synthetic data for domain-specific learning tasks, for which training data may not be readily available. We leverage recent progress in image-to-image translation to bridge the gap…

机器人学 · 计算机科学 2017-10-13 Gregory J. Stein , Nicholas Roy

During the pre-training step of natural language models, the main objective is to learn a general representation of the pre-training dataset, usually requiring large amounts of textual data to capture the complexity and diversity of natural…

计算与语言 · 计算机科学 2023-10-23 Tobias Deußer , Cong Zhao , Wolfgang Krämer , David Leonhard , Christian Bauckhage , Rafet Sifa

He et al. (2018) have called into question the utility of pre-training by showing that training from scratch can often yield similar performance to pre-training. We show that although pre-training may not improve performance on traditional…

机器学习 · 计算机科学 2019-10-22 Dan Hendrycks , Kimin Lee , Mantas Mazeika

Pre-training a language model and then fine-tuning it for downstream tasks has demonstrated state-of-the-art results for various NLP tasks. Pre-training is usually independent of the downstream task, and previous works have shown that this…

计算与语言 · 计算机科学 2022-11-28 Tanish Lad , Himanshu Maheshwari , Shreyas Kottukkal , Radhika Mamidi

Due to data privacy issues, accelerating networks with tiny training sets has become a critical need in practice. Previous methods achieved promising results empirically by filter-level pruning. In this paper, we both study this problem…

计算机视觉与模式识别 · 计算机科学 2023-03-13 Guo-Hua Wang , Jianxin Wu

Recent work has shown that language models (LMs) trained with multi-task \textit{instructional learning} (MTIL) can solve diverse NLP tasks in zero- and few-shot settings with improved performance compared to prompt tuning. MTIL illustrates…

计算与语言 · 计算机科学 2022-10-24 Budhaditya Deb , Guoqing Zheng , Ahmed Hassan Awadallah

Models trained on synthetic images often face degraded generalization to real data. As a convention, these models are often initialized with ImageNet pre-trained representation. Yet the role of ImageNet knowledge is seldom discussed despite…

机器学习 · 计算机科学 2020-07-15 Wuyang Chen , Zhiding Yu , Zhangyang Wang , Anima Anandkumar

Visual pre-training with large-scale real-world data has made great progress in recent years, showing great potential in robot learning with pixel observations. However, the recipes of visual pre-training for robot manipulation tasks are…

机器人学 · 计算机科学 2023-08-08 Ya Jing , Xuelin Zhu , Xingbin Liu , Qie Sima , Taozheng Yang , Yunhai Feng , Tao Kong

We consider small-data, large-scale decision problems in which a firm must make many operational decisions simultaneously (e.g., across a large product portfolio) while observing only a few, potentially noisy, data points per instance.…

机器学习 · 计算机科学 2026-02-04 Zishi Zhang , Jinhui Han , Ming Hu , Yijie Peng

Dataset distillation is the task of synthesizing a small dataset such that a model trained on the synthetic set will match the test accuracy of the model trained on the full dataset. In this paper, we propose a new formulation that…

计算机视觉与模式识别 · 计算机科学 2022-03-23 George Cazenavette , Tongzhou Wang , Antonio Torralba , Alexei A. Efros , Jun-Yan Zhu

Adapting large language models (LLMs) to unseen tasks with in-context training samples without fine-tuning remains an important research problem. To learn a robust LLM that adapts well to unseen tasks, multiple meta-training approaches have…

计算与语言 · 计算机科学 2024-05-21 Sanchit Sinha , Yuguang Yue , Victor Soto , Mayank Kulkarni , Jianhua Lu , Aidong Zhang

With the advent of AI agents, automatic scientific discovery has become a tenable goal. Many recent works scaffold agentic systems that can perform machine learning research, but don't offer a principled way to train such agents -- and…

人工智能 · 计算机科学 2026-03-19 Ziyang Cai , Harkirat Behl

Natural language explanations promise to offer intuitively understandable explanations of a neural network's decision process in complex vision-language tasks, as pursued in recent VL-NLE models. While current models offer impressive…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Björn Plüster , Jakob Ambsdorf , Lukas Braach , Jae Hee Lee , Stefan Wermter

Parameter-efficient (PE) methods (like Prompts or Adapters) for adapting pre-trained language models (PLM) to downstream tasks have been popular recently. However, hindrances still prevent these methods from reaching their full potential.…

计算与语言 · 计算机科学 2024-05-31 Shih-Cheng Huang , Shih-Heng Wang , Min-Han Shih , Saurav Sahay , Hung-yi Lee

We investigate the utility of pretraining by contrastive self supervised learning on both natural-scene and medical imaging datasets when the unlabeled dataset size is small, or when the diversity within the unlabeled set does not lead to…

图像与视频处理 · 电气工程与系统科学 2021-09-07 Ozan Ciga , Tony Xu , Anne L. Martel

In visual Reinforcement Learning (RL), upstream representation learning largely determines the effect of downstream policy learning. Employing auxiliary tasks allows the agent to enhance visual representation in a targeted manner, thereby…

机器学习 · 计算机科学 2024-05-21 Xin Liu , Yaran Chen , Dongbin Zhao

A key consideration when training an LLM is whether the target language is more or less resourced, for example English compared to Welsh, or Python compared to Excel. Typical training data for programming languages consists of real program…

计算与语言 · 计算机科学 2026-05-13 Nick McKenna , Xinnuo Xu , Jack Williams , Nick Wilson , Benjamin Van Durme , Christian Poelitz