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The representation learning problem in the oil & gas industry aims to construct a model that provides a representation based on logging data for a well interval. Previous attempts are mainly supervised and focus on similarity task, which…

人工智能 · 计算机科学 2023-11-14 Alexander Marusov , Alexey Zaytsev

Convolutional neural networks (CNNs) have been successfully applied to solve the problem of correspondence estimation between semantically related images. Due to non-availability of large training datasets, existing methods resort to…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Zakaria Laskar , Juho Kannala

The latest advancements in unsupervised learning of sentence embeddings predominantly involve employing contrastive learning-based (CL-based) fine-tuning over pre-trained language models. In this study, we analyze the latest sentence…

计算与语言 · 计算机科学 2024-05-21 Euna Jung , Jaeill Kim , Jungmin Ko , Jinwoo Park , Wonjong Rhee

Natural Language Inference (NLI) is a growingly essential task in natural language understanding, which requires inferring the relationship between the sentence pairs (premise and hypothesis). Recently, low-resource natural language…

计算与语言 · 计算机科学 2022-06-01 Shu'ang Li , Xuming Hu , Li Lin , Aiwei Liu , Lijie Wen , Philip S. Yu

Contrastive learning has become a popular approach in natural language processing, particularly for the learning of sentence embeddings. However, the discrete nature of natural language makes it difficult to ensure the quality of positive…

计算与语言 · 计算机科学 2023-05-23 Qinyuan Cheng , Xiaogui Yang , Tianxiang Sun , Linyang Li , Xipeng Qiu

Overlapped Speech Detection (OSD) is an important part of speech applications involving analysis of multi-party conversations. However, most of existing OSD systems are trained and evaluated on small datasets with limited application…

声音 · 计算机科学 2023-09-08 Zhaohui Yin , Jingguang Tian , Xinhui Hu , Xinkang Xu , Yang Xiang

Speech representation learning plays a vital role in speech processing. Among them, self-supervised learning (SSL) has become an important research direction. It has been shown that an SSL pretraining model can achieve excellent performance…

音频与语音处理 · 电气工程与系统科学 2021-10-20 Yi-Chen Chen , Shu-wen Yang , Cheng-Kuang Lee , Simon See , Hung-yi Lee

Causal representation learning (CRL) models aim to transform high-dimensional data into a latent space, enabling interventions to generate counterfactual samples or modify existing data based on the causal relationships among latent…

机器学习 · 计算机科学 2026-03-19 Alireza Sadeghi , Wael AbdAlmageed

Contrastive self-supervised learning (SSL) learns an embedding space that maps similar data pairs closer and dissimilar data pairs farther apart. Despite its success, one issue has been overlooked: the fairness aspect of representations…

Single-cell RNA sequencing (scRNA-seq) data is a potent tool for comprehending the "language of life" and can provide insights into various downstream biomedical tasks. Large-scale language models (LLMs) are starting to be used for cell…

计算工程、金融与科学 · 计算机科学 2023-06-08 Suyuan Zhao , Jiahuan Zhang , Zaiqing Nie

Outcome-reward reinforcement learning (RL) is a common and increasingly significant way to refine the step-by-step reasoning of multimodal large language models (MLLMs). In the multiple-choice setting - a dominant format for multimodal…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Jiahao Wang , Weiye Xu , Aijun Yang , Wengang Zhou , Lewei Lu , Houqiang Li , Xiaohua Wang , Jinguo Zhu

Recent work has shown that self-supervised pre-training leads to improvements over supervised learning on challenging visual recognition tasks. CLIP, an exciting new approach to learning with language supervision, demonstrates promising…

计算机视觉与模式识别 · 计算机科学 2021-12-24 Norman Mu , Alexander Kirillov , David Wagner , Saining Xie

Large Language Models (LLMs) are one of the most promising technologies for the next era of speech generation systems, due to their scalability and in-context learning capabilities. Nevertheless, they suffer from multiple stability issues…

Large language models (LLMs) achieve strong performance by generating long chains of thought, but longer traces always introduce redundant or ineffective reasoning steps. One typical behavior is that they often perform unnecessary…

计算与语言 · 计算机科学 2026-01-13 Jinyi Han , Zixiang Di , Zishang Jiang , Ying Liao , Jiaqing Liang , Yongqi Wang , Yanghua Xiao

The Split and Rephrase (SPRP) task, which consists in splitting complex sentences into a sequence of shorter grammatical sentences, while preserving the original meaning, can facilitate the processing of complex texts for humans and…

计算与语言 · 计算机科学 2024-10-11 David Ponce , Thierry Etchegoyhen , Jesús Calleja Pérez , Harritxu Gete

Large Language Models (LLMs) excel in various natural language processing tasks, but leveraging them for dense passage embedding remains challenging. This is due to their causal attention mechanism and the misalignment between their…

计算与语言 · 计算机科学 2024-08-08 Hieu Man , Nghia Trung Ngo , Franck Dernoncourt , Thien Huu Nguyen

(Very early draft)Traditional supervised learning keeps pushing convolution neural network(CNN) achieving state-of-art performance. However, lack of large-scale annotation data is always a big problem due to the high cost of it, even…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Zhibo Wang , Shen Yan , Xiaoyu Zhang , Niels Lobo

Contrastive representation learning (CRL) underpins many modern foundation models. Despite recent theoretical progress, existing analyses suffer from several key limitations: (i) the statistical consistency of CRL remains poorly understood;…

机器学习 · 计算机科学 2026-05-29 Yuanfan Li , Xiyuan Wei , Tianbao Yang , Yiming Ying

The challenges faced by text classification with large tag systems in natural language processing tasks include multiple tag systems, uneven data distribution, and high noise. To address these problems, the ESimCSE unsupervised comparative…

机器学习 · 计算机科学 2023-04-27 Ruan Lu , Zhou HangCheng , Ran Meng , Zhao Jin , Qin JiaoYu , Wei Feng , Wang ChenZi

Semi-supervised learning acts as an effective way to leverage massive unlabeled data. In this paper, we propose a novel training strategy, termed as Semi-supervised Contrastive Learning (SsCL), which combines the well-known contrastive loss…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Yuhang Zhang , Xiaopeng Zhang , Robert. C. Qiu , Jie Li , Haohang Xu , Qi Tian