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Self-supervised skeleton-based action recognition enjoys a rapid growth along with the development of contrastive learning. The existing methods rely on imposing invariance to augmentations of 3D skeleton within a single data stream, which…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Ding Li , Yongqiang Tang , Zhizhong Zhang , Wensheng Zhang

State-of-the-art text-video retrieval (TVR) methods typically utilize CLIP and cosine similarity for efficient retrieval. Meanwhile, cross attention methods, which employ a transformer decoder to compute attention between each text query…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Zuozhuo Dai , Fangtao Shao , Qingkun Su , Zilong Dong , Siyu Zhu

Despite the recent developments in the field of cross-modal retrieval, there has been less research focusing on low-resource languages due to the lack of manually annotated datasets. In this paper, we propose a noise-robust cross-lingual…

Computer Vision and Pattern Recognition · Computer Science 2022-08-29 Yabing Wang , Jianfeng Dong , Tianxiang Liang , Minsong Zhang , Rui Cai , Xun Wang

In the recent years, the dual-encoder vision-language models (\eg CLIP) have achieved remarkable text-to-image retrieval performance. However, we discover that these models usually results in very different retrievals for a pair of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Jiacheng Cheng , Hijung Valentina Shin , Nuno Vasconcelos , Bryan Russell , Fabian Caba Heilbron

The popularity of high and ultra-high definition displays has led to the need for methods to improve the quality of videos already obtained at much lower resolutions. Current Video Super-Resolution methods are not robust to mismatch between…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Santiago López-Tapia , Alice Lucas , Rafael Molina , Aggelos K. Katsaggelos

Self-supervised learning (SSL) has allowed substantial progress in Automatic Speech Recognition (ASR) performance in low-resource settings. In this context, it has been demonstrated that larger self-supervised feature extractors are crucial…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-14 Salah Zaiem , Robin Algayres , Titouan Parcollet , Slim Essid , Mirco Ravanelli

Recent advances in text-to-3D generation have made significant progress. In particular, with the pretrained diffusion models, existing methods predominantly use Score Distillation Sampling (SDS) to train 3D models such as Neural RaRecent…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Hangyu Li , Xiangxiang Chu , Dingyuan Shi , Wang Lin

Recent advancements in large video-language models have revolutionized video understanding tasks. However, their efficiency is significantly constrained by processing high volumes of visual tokens. Existing token compression strategies…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Xiangchen Wang , Jinrui Zhang , Teng Wang , Haigang Zhang , Feng Zheng

This work aims at improving instance retrieval with self-supervision. We find that fine-tuning using the recently developed self-supervised (SSL) learning methods, such as SimCLR and MoCo, fails to improve the performance of instance…

Computer Vision and Pattern Recognition · Computer Science 2021-12-03 Zelu Deng , Yujie Zhong , Sheng Guo , Weilin Huang

Videos contain multi-modal content, and exploring multi-level cross-modal interactions with natural language queries can provide great prominence to text-video retrieval task (TVR). However, new trending methods applying large-scale…

Multimedia · Computer Science 2022-08-23 Shuo Liu , Weize Quan , Ming Zhou , Sihong Chen , Jian Kang , Zhe Zhao , Chen Chen , Dong-Ming Yan

In recent years, single image super-resolution (SISR) methods using deep convolution neural network (CNN) have achieved impressive results. Thanks to the powerful representation capabilities of the deep networks, numerous previous ways can…

Image and Video Processing · Electrical Eng. & Systems 2019-09-27 Zheng Hui , Xinbo Gao , Yunchu Yang , Xiumei Wang

Contrastively-trained Vision-Language Models (VLMs), such as CLIP, have become the standard approach for learning discriminative vision-language representations. However, these models often exhibit shallow language understanding,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Ioanna Ntinou , Alexandros Xenos , Yassine Ouali , Adrian Bulat , Georgios Tzimiropoulos

Significant advancements in video diffusion models have brought substantial progress to the field of text-to-video (T2V) synthesis. However, existing T2V synthesis model struggle to accurately generate complex motion dynamics, leading to a…

Computer Vision and Pattern Recognition · Computer Science 2024-06-06 Haoran Cheng , Liang Peng , Linxuan Xia , Yuepeng Hu , Hengjia Li , Qinglin Lu , Xiaofei He , Boxi Wu

Softmax Loss (SL) is widely applied in recommender systems (RS) and has demonstrated effectiveness. This work analyzes SL from a pairwise perspective, revealing two significant limitations: 1) the relationship between SL and conventional…

Machine Learning · Computer Science 2025-08-05 Weiqin Yang , Jiawei Chen , Xin Xin , Sheng Zhou , Binbin Hu , Yan Feng , Chun Chen , Can Wang

Our goal in this paper is the adaptation of image-text models for long video retrieval. Recent works have demonstrated state-of-the-art performance in video retrieval by adopting CLIP, effectively hitchhiking on the image-text…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Max Bain , Arsha Nagrani , Gül Varol , Andrew Zisserman

With the development of deep learning, Deep Metric Learning (DML) has achieved great improvements in face recognition. Specifically, the widely used softmax loss in the training process often bring large intra-class variations, and feature…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Bowen Wu , Huaming Wu , Monica M. Y. Zhang

We aim to improve the reasoning capabilities of diffusion language models (DLMs). While SFT is a popular post-training recipe for autoregressive models, its use in DLMs faces challenges and can even hurt performance, though the underlying…

Computation and Language · Computer Science 2026-05-25 Shubham Parashar , Atharv Chagi , Jacob Helwig , Lakshmi Jotsna , Sushil Vemuri , James Caverlee , Dileep Kalathil , Shuiwang Ji

The use of contrastive loss for representation learning has become prominent in computer vision, and it is now getting attention in Natural Language Processing (NLP). Here, we explore the idea of using a batch-softmax contrastive loss when…

Computation and Language · Computer Science 2021-11-01 Anton Chernyavskiy , Dmitry Ilvovsky , Pavel Kalinin , Preslav Nakov

Most existing methods in vision-language retrieval match two modalities by either comparing their global feature vectors which misses sufficient information and lacks interpretability, detecting objects in images or videos and aligning the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Xiaohan Zou , Changqiao Wu , Lele Cheng , Zhongyuan Wang

Moment retrieval (MR) and highlight detection (HD) aim to identify relevant moments and highlights in video from corresponding natural language query. Large language models (LLMs) have demonstrated proficiency in various computer vision…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Yunzhuo Sun , Yifang Xu , Zien Xie , Yukun Shu , Sidan Du