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Accuracy of English-language Question Answering (QA) systems has improved significantly in recent years with the advent of Transformer-based models (e.g., BERT). These models are pre-trained in a self-supervised fashion with a large English…

Computation and Language · Computer Science 2022-04-13 Gokul Karthik Kumar , Abhishek Singh Gehlot , Sahal Shaji Mullappilly , Karthik Nandakumar

Modality representation learning is an important problem for multimodal sentiment analysis (MSA), since the highly distinguishable representations can contribute to improving the analysis effect. Previous works of MSA have usually focused…

Multimedia · Computer Science 2023-01-31 Peipei Liu , Xin Zheng , Hong Li , Jie Liu , Yimo Ren , Hongsong Zhu , Limin Sun

Cross-language pre-trained models such as multilingual BERT (mBERT) have achieved significant performance in various cross-lingual downstream NLP tasks. This paper proposes a multi-level contrastive learning (ML-CTL) framework to further…

Computation and Language · Computer Science 2022-03-01 Beiduo Chen , Wu Guo , Bin Gu , Quan Liu , Yongchao Wang

Self-Supervised Contrastive Learning has proven effective in deriving high-quality representations from unlabeled data. However, a major challenge that hinders both unimodal and multimodal contrastive learning is feature suppression, a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Jihai Zhang , Xiang Lan , Xiaoye Qu , Yu Cheng , Mengling Feng , Bryan Hooi

We show that bringing intermediate layers' representations of two augmented versions of an image closer together in self-supervised learning helps to improve the momentum contrastive (MoCo) method. To this end, in addition to the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Aakash Kaku , Sahana Upadhya , Narges Razavian

Prompt tuning, like CoOp, has recently shown promising vision recognizing and transfer learning ability on various downstream tasks with the emergence of large pre-trained vision-language models like CLIP. However, we identify that existing…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Yongzhu Miao , Shasha Li , Jintao Tang , Ting Wang

Making decent multi-lingual sentence representations is critical to achieve high performances in cross-lingual downstream tasks. In this work, we propose a novel method to align multi-lingual embeddings based on the similarity of sentences…

Computation and Language · Computer Science 2024-05-29 Minsu Park , Seyeon Choi , Chanyeol Choi , Jun-Seong Kim , Jy-yong Sohn

Learning sentence embeddings from dialogues has drawn increasing attention due to its low annotation cost and high domain adaptability. Conventional approaches employ the siamese-network for this task, which obtains the sentence embeddings…

Computation and Language · Computer Science 2021-09-28 Che Liu , Rui Wang , Jinghua Liu , Jian Sun , Fei Huang , Luo Si

Recently, a noticeable trend has emerged in developing pre-trained foundation models in the domains of CV and NLP. However, for molecular pre-training, there lacks a universal model capable of effectively applying to various categories of…

Biomolecules · Quantitative Biology 2024-05-21 Shikun Feng , Yuyan Ni , Minghao Li , Yanwen Huang , Zhi-Ming Ma , Wei-Ying Ma , Yanyan Lan

The impressive performance of GPT-3 using natural language prompts and in-context learning has inspired work on better fine-tuning of moderately-sized models under this paradigm. Following this line of work, we present a contrastive…

Computation and Language · Computer Science 2022-05-04 Yiren Jian , Chongyang Gao , Soroush Vosoughi

Contrastive learning has shown remarkable results in recent self-supervised approaches for visual representation. By learning to contrast positive pairs' representation from the corresponding negatives pairs, one can train good visual…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Sungnyun Kim , Gihun Lee , Sangmin Bae , Se-Young Yun

Self-supervised learning on images seeks to extract meaningful visual representations from unlabeled data. When scaled to large datasets, this paradigm has achieved state-of-the-art performance and the resulting trained models such as…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 David Nordström , Johan Edstedt , Fredrik Kahl , Georg Bökman

Deep multimodal learning has shown remarkable success by leveraging contrastive learning to capture explicit one-to-one relations across modalities. However, real-world data often exhibits shared relations beyond simple pairwise…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Raja Kumar , Raghav Singhal , Pranamya Kulkarni , Deval Mehta , Kshitij Jadhav

Language-supervised vision models have recently attracted great attention in computer vision. A common approach to build such models is to use contrastive learning on paired data across the two modalities, as exemplified by Contrastive…

Machine Learning · Computer Science 2023-03-16 Ryumei Nakada , Halil Ibrahim Gulluk , Zhun Deng , Wenlong Ji , James Zou , Linjun Zhang

Unsupervised representation learning with contrastive learning achieved great success. This line of methods duplicate each training batch to construct contrastive pairs, making each training batch and its augmented version forwarded…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Pengguang Chen , Shu Liu , Jiaya Jia

Today, there have been many achievements in learning the association between voice and face. However, most previous work models rely on cosine similarity or L2 distance to evaluate the likeness of voices and faces following contrastive…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Chong Peng , Liqiang He , Dan Su

Learning representations of multimodal data that are both informative and robust to missing modalities at test time remains a challenging problem due to the inherent heterogeneity of data obtained from different channels. To address it, we…

Machine Learning · Computer Science 2022-11-21 Petra Poklukar , Miguel Vasco , Hang Yin , Francisco S. Melo , Ana Paiva , Danica Kragic

Modern Review Helpfulness Prediction systems are dependent upon multiple modalities, typically texts and images. Unfortunately, those contemporary approaches pay scarce attention to polish representations of cross-modal relations and tend…

Computation and Language · Computer Science 2026-05-13 Thong Nguyen , Xiaobao Wu , Anh-Tuan Luu , Cong-Duy Nguyen , Zhen Hai , Lidong Bing

State-of-the-art retrieval models typically address a straightforward search scenario, in which retrieval tasks are fixed (e.g., finding a passage to answer a specific question) and only a single modality is supported for both queries and…

Computation and Language · Computer Science 2025-02-25 Sheng-Chieh Lin , Chankyu Lee , Mohammad Shoeybi , Jimmy Lin , Bryan Catanzaro , Wei Ping

Machine learning (ML) is playing an increasingly important role in data management tasks, particularly in Data Integration and Preparation (DI&P). The success of ML-based approaches, however, heavily relies on the availability of…

Databases · Computer Science 2022-10-12 Runhui Wang , Yuliang Li , Jin Wang