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Multimodal models, such as the Contrastive Language-Image Pre-training (CLIP) model, have demonstrated remarkable success in aligning visual and linguistic representations. However, these models exhibit limitations when applied to…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Hiroshi Sasaki

While speech emotion recognition (SER) research has made significant progress, achieving generalization across various corpora continues to pose a problem. We propose a novel domain adaptation technique that embodies a multitask framework…

计算与语言 · 计算机科学 2023-10-10 Chung-Soo Ahn , Jagath C. Rajapakse , Rajib Rana

Contrastive learning has been shown to produce generalizable representations of audio and visual data by maximizing the lower bound on the mutual information (MI) between different views of an instance. However, obtaining a tight lower…

机器学习 · 计算机科学 2021-04-20 Shuang Ma , Zhaoyang Zeng , Daniel McDuff , Yale Song

We generalize the theory of supervised contrastive learning, previously applied to physical systems at equilibrium or steady state, to systems following any dynamics described by coupled ordinary differential equations. We show that if…

无序系统与神经网络 · 物理学 2026-03-31 Menachem Stern , Adam G. Frim , Raúl Candás , Andrea J. Liu , Vijay Balasubramanian

Contrastive representation learning is a modern paradigm for learning representations of unlabeled data via augmentations -- precisely, contrastive models learn to embed semantically similar pairs of samples (positive pairs) closer than…

机器学习 · 统计学 2026-01-01 Anna Van Elst , Debarghya Ghoshdastidar

Unsupervised domain adaptation (UDA) provides a strategy for improving machine learning performance in data-rich (target) domains where ground truth labels are inaccessible but can be found in related (source) domains. In cases where…

机器学习 · 计算机科学 2023-07-24 Garrett Wilson , Janardhan Rao Doppa , Diane J. Cook

As a representative self-supervised method, contrastive learning has achieved great successes in unsupervised training of representations. It trains an encoder by distinguishing positive samples from negative ones given query anchors. These…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Xiao Wang , Yuhang Huang , Dan Zeng , Guo-Jun Qi

Tool-augmented large language models (LLMs) leverage external functions to extend their capabilities, but inaccurate function calls can lead to inefficiencies and increased costs.Existing methods address this challenge by fine-tuning LLMs…

计算与语言 · 计算机科学 2025-08-26 Yixin Chen , Ying Xiong , Shangyu Wu , Yufei Cui , Xue Liu , Nan Guan , Chun Jason Xue

With the flourishing of social media platforms, vision-language pre-training (VLP) recently has received great attention and many remarkable progresses have been achieved. The success of VLP largely benefits from the information…

计算机视觉与模式识别 · 计算机科学 2024-10-17 Zhiyuan Ma , Jianjun Li , Guohui Li , Kaiyan Huang

In recent years, self-supervised representation learning for skeleton-based action recognition has been developed with the advance of contrastive learning methods. The existing contrastive learning methods use normal augmentations to…

计算机视觉与模式识别 · 计算机科学 2021-12-08 Tianyu Guo , Hong Liu , Zhan Chen , Mengyuan Liu , Tao Wang , Runwei Ding

The iterative selection of examples for labeling in active machine learning is conceptually similar to feedback channel coding in information theory: in both tasks, the objective is to seek a minimal sequence of actions to encode…

机器学习 · 统计学 2021-03-02 Gregory Canal , Matthieu Bloch , Christopher Rozell

Multimodal aspect-based sentiment analysis(MABSA) seeks to identify aspect terms within paired image-text data and determine their fine grained sentiment polarities, representing a fundamental task for improving the effectiveness of…

计算机视觉与模式识别 · 计算机科学 2025-07-24 Xiaoqiang He

Recently, contrastive learning has risen to be a promising approach for large-scale self-supervised learning. However, theoretical understanding of how it works is still unclear. In this paper, we propose a new guarantee on the downstream…

机器学习 · 计算机科学 2022-05-30 Yifei Wang , Qi Zhang , Yisen Wang , Jiansheng Yang , Zhouchen Lin

Multilingual generative models obtain remarkable cross-lingual in-context learning capabilities through pre-training on large-scale corpora. However, they still exhibit a performance bias toward high-resource languages and learn isolated…

计算与语言 · 计算机科学 2024-06-13 Chong Li , Shaonan Wang , Jiajun Zhang , Chengqing Zong

Contrastive Learning (CL) has emerged as a powerful method for training feature extraction models using unlabeled data. Recent studies suggest that incorporating a linear projection head post-backbone significantly enhances model…

机器学习 · 计算机科学 2024-10-08 Huanran Li , Daniel Pimentel-Alarcón

Generalist Vision-Language-Action models are currently hindered by the scarcity of robotic data compared to the abundance of human video demonstrations. Existing Latent Action Models attempt to leverage video data but often suffer from…

机器人学 · 计算机科学 2026-01-08 Chubin Zhang , Jianan Wang , Zifeng Gao , Yue Su , Tianru Dai , Cai Zhou , Jiwen Lu , Yansong Tang

Human perception integrates multiple modalities, such as vision, hearing, and language, into a unified understanding of the surrounding reality. While recent multimodal models have achieved significant progress by aligning pairs of…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Giordano Cicchetti , Eleonora Grassucci , Luigi Sigillo , Danilo Comminiello

Accurately predicting the likelihood of interaction between two objects (compound-protein sequence, user-item, author-paper, etc.) is a fundamental problem in Computer Science. Current deep-learning models rely on learning accurate…

机器学习 · 计算机科学 2022-12-23 Apurva Kalia , Dilip Krishnan , Soha Hassoun

Graph-level contrastive learning, aiming to learn the representations for each graph by contrasting two augmented graphs, has attracted considerable attention. Previous studies usually simply assume that a graph and its augmented graph as a…

人工智能 · 计算机科学 2024-04-15 Yanbei Liu , Yu Zhao , Xiao Wang , Lei Geng , Zhitao Xiao

A fundamental challenge in artificial intelligence is learning useful representations of data that yield good performance on a downstream task, without overfitting to spurious input features. Extracting such task-relevant predictive…

机器学习 · 计算机科学 2021-06-15 Saeid Asgari Taghanaki , Kristy Choi , Amir Khasahmadi , Anirudh Goyal