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In this paper, we propose Self-Contrastive Decorrelation (SCD), a self-supervised approach. Given an input sentence, it optimizes a joint self-contrastive and decorrelation objective. Learning a representation is facilitated by leveraging…

计算与语言 · 计算机科学 2022-03-16 Tassilo Klein , Moin Nabi

Obtaining labelled data in a particular context could be expensive and time consuming. Although different algorithms, including unsupervised learning, semi-supervised learning, self-learning have been adopted, the performance of text…

计算与语言 · 计算机科学 2022-12-26 Ying Xie , Dongping Song

Dynamic node classification is critical for modeling evolving systems like financial transactions and academic collaborations. In such systems, dynamically capturing node information changes is critical for dynamic node classification,…

机器学习 · 计算机科学 2025-04-28 Shengtao Zhang , Haokai Zhang , Shiqi Lou , Zicheng Wang , Zinan Zeng , Yilin Wang , Minnan Luo

Various automatic curriculum learning (ACL) methods have been proposed to improve the sample efficiency and final performance of deep reinforcement learning (DRL). They are designed to control how a DRL agent collects data, which is…

机器学习 · 计算机科学 2022-10-26 Jikun Kang , Miao Liu , Abhinav Gupta , Chris Pal , Xue Liu , Jie Fu

Training machine learning models in a meaningful order, from the easy samples to the hard ones, using curriculum learning can provide performance improvements over the standard training approach based on random data shuffling, without any…

机器学习 · 计算机科学 2022-04-12 Petru Soviany , Radu Tudor Ionescu , Paolo Rota , Nicu Sebe

Reinforcement learning (RL) has demonstrated considerable potential for enhancing reasoning in large language models (LLMs). However, existing methods suffer from Gradient Starvation and Policy Degradation when training directly on samples…

机器学习 · 计算机科学 2025-11-13 Renda Li , Hailang Huang , Fei Wei , Feng Xiong , Yong Wang , Xiangxiang Chu

Curriculum learning provides a systematic approach to training. It refines training progressively, tailors training to task requirements, and improves generalization through exposure to diverse examples. We present a curriculum learning…

计算与语言 · 计算机科学 2023-11-23 Nidhi Vakil , Hadi Amiri

Test-time adaptation offers a promising avenue for improving reasoning performance in large language models without additional supervision, but existing approaches often apply a uniform optimization objective across all inputs, leading to…

计算与语言 · 计算机科学 2026-03-06 Mohammad Mahdi Moradi , Sudhir Mudur

Learning from imbalanced data is one of the most significant challenges in real-world classification tasks. In such cases, neural networks performance is substantially impaired due to preference towards the majority class. Existing…

机器学习 · 计算机科学 2022-11-13 Bronislav Yasinnik , Moshe Salhov , Ofir Lindenbaum , Amir Averbuch

Semi-supervised learning (SSL) leverages limited labeled and abundant unlabeled data but often faces challenges with data imbalance, especially in 3D contexts. This study investigates class-level confidence as an indicator of learning…

计算机视觉与模式识别 · 计算机科学 2024-11-14 Zhimin Chen , Bing Li

Class-imbalance refers to classification problems in which many more instances are available for certain classes than for others. Such imbalanced datasets require special attention because traditional classifiers generally favor the…

机器学习 · 统计学 2018-11-30 Rafael M. O. Cruz , Robert Sabourin , George D. C. Cavalcanti

A key challenge in the continual learning setting is to efficiently learn a sequence of tasks without forgetting how to perform previously learned tasks. Many existing approaches to this problem work by either retraining the model on…

机器学习 · 计算机科学 2024-01-12 Weijieying Ren , Vasant G Honavar

Continual learning algorithms which keep the parameters of new tasks close to that of previous tasks, are popular in preventing catastrophic forgetting in sequential task learning settings. However, 1) the performance for the new continual…

机器学习 · 计算机科学 2023-07-21 Wei Cong , Yang Cong , Gan Sun , Yuyang Liu , Jiahua Dong

Curriculum learning methods typically rely on heuristics to estimate the difficulty of training examples or the ability of the model. In this work, we propose replacing difficulty heuristics with learned difficulty parameters. We also…

计算与语言 · 计算机科学 2020-11-03 John P. Lalor , Hong Yu

Knowledge Distillation (KD) compresses large language models (LLMs) by transferring the teacher model's capabilities to a smaller student model, reducing inference cost and memory usage while maintaining performance. However, existing KD…

计算与语言 · 计算机科学 2025-06-11 Lingyuan Liu , Mengxiang Zhang

Previous contrastive learning methods for sentence representations often focus on insensitive transformations to produce positive pairs, but neglect the role of sensitive transformations that are harmful to semantic representations.…

计算与语言 · 计算机科学 2023-03-10 Jie Liu , Yixuan Liu , Xue Han , Chao Deng , Junlan Feng

Data imbalance is a common problem in machine learning that can have a critical effect on the performance of a model. Various solutions exist but their impact on the convergence of the learning dynamics is not understood. Here, we elucidate…

机器学习 · 统计学 2024-02-20 Emanuele Francazi , Marco Baity-Jesi , Aurelien Lucchi

In document classification for, e.g., legal and biomedical text, we often deal with hundreds of classes, including very infrequent ones, as well as temporal concept drift caused by the influence of real world events, e.g., policy changes,…

计算与语言 · 计算机科学 2022-03-16 Ilias Chalkidis , Anders Søgaard

The focus of this study is on Unsupervised Continual Learning (UCL), as it presents an alternative to Supervised Continual Learning which needs high-quality manual labeled data. The experiments under the UCL paradigm indicate a phenomenon…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Chen Cheng , Jingkuan Song , Xiaosu Zhu , Junchen Zhu , Lianli Gao , Hengtao Shen

The rapid advancement of Large Language Models (LLMs) has improved text understanding and generation but poses challenges in computational resources. This study proposes a curriculum learning-inspired, data-centric training strategy that…

计算与语言 · 计算机科学 2024-05-14 Jisu Kim , Juhwan Lee