task 9
Balanced Gradient Sample Retrieval for Enhanced Knowledge Retention in Proxy-based Continual Learning
Xu, Hongye, Wasilewski, Jan, Krawczyk, Bartosz
Continual learning in deep neural networks often suffers from catastrophic forgetting, where representations for previous tasks are overwritten during subsequent training. We propose a novel sample retrieval strategy from the memory buffer that leverages both gradient-conflicting and gradient-aligned samples to effectively retain knowledge about past tasks within a supervised contrastive learning framework. Gradient-conflicting samples are selected for their potential to reduce interference by re-aligning gradients, thereby preserving past task knowledge. Meanwhile, gradient-aligned samples are incorporated to reinforce stable, shared representations across tasks. By balancing gradient correction from conflicting samples with alignment reinforcement from aligned ones, our approach increases the diversity among retrieved instances and achieves superior alignment in parameter space, significantly enhancing knowledge retention and mitigating proxy drift. Empirical results demonstrate that using both sample types outperforms methods relying solely on one sample type or random retrieval. Experiments on popular continual learning benchmarks in computer vision validate our method's state-of-the-art performance in mitigating forgetting while maintaining competitive accuracy on new tasks.
Performance Improvement of Language-Queried Audio Source Separation Based on Caption Augmentation From Large Language Models for DCASE Challenge 2024 Task 9
Lee, Do Hyun, Song, Yoonah, Kim, Hong Kook
We present a prompt-engineering-based text-augmentation approach applied to a language-queried audio source separation (LASS) task. To enhance the performance of LASS, the proposed approach utilizes large language models (LLMs) to generate multiple captions corresponding to each sentence of the training dataset. To this end, we first perform experiments to identify the most effective prompts for caption augmentation with a smaller number of captions. A LASS model trained with these augmented captions demonstrates improved performance on the DCASE 2024 Task 9 validation set compared to that trained without augmentation. This study highlights the effectiveness of LLM-based caption augmentation in advancing language-queried audio source separation.
SemEval 2023 Task 9: Multilingual Tweet Intimacy Analysis
Pei, Jiaxin, Silva, Vítor, Bos, Maarten, Liu, Yozon, Neves, Leonardo, Jurgens, David, Barbieri, Francesco
R model trained over the twitter dataset (XLM-T) performs the best on 7 languages. While the Intimacy has long been viewed as a primary dimension pre-trained language models are able to achieve of human relationships and interpersonal promising performance, zero-shot prediction of unseen interactions (Maslow, 1981; Sullivan, 2013; Prager, languages remains challenging especially for 1995). Existing studies suggest that intimacy is an Korean and Hindi.