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Various graph contrastive learning models have been proposed to improve the performance of learning tasks on graph datasets in recent years. While effective and prevalent, these models are usually carefully customized. In particular,…

机器学习 · 计算机科学 2021-11-01 Dongkuan Xu , Wei Cheng , Dongsheng Luo , Haifeng Chen , Xiang Zhang

Contrastive learning has achieved remarkable success in representation learning via self-supervision in unsupervised settings. However, effectively adapting contrastive learning to supervised learning tasks remains as a challenge in…

计算与语言 · 计算机科学 2022-01-24 Qianben Chen , Richong Zhang , Yaowei Zheng , Yongyi Mao

Authorship attribution models fine-tuned with the same pretrained encoder, data, and loss can differ four-fold in performance depending only on their scoring mechanism. We use mechanistic interpretability tools to explain this gap.…

计算与语言 · 计算机科学 2026-05-27 Francis Kulumba , Guillaume Vimont , Laurent Romary , Florian Cafiero

This paper introduces Ranking Info Noise Contrastive Estimation (RINCE), a new member in the family of InfoNCE losses that preserves a ranked ordering of positive samples. In contrast to the standard InfoNCE loss, which requires a strict…

计算机视觉与模式识别 · 计算机科学 2022-01-28 David T. Hoffmann , Nadine Behrmann , Juergen Gall , Thomas Brox , Mehdi Noroozi

Contrastive speaker embedding assumes that the contrast between the positive and negative pairs of speech segments is attributed to speaker identity only. However, this assumption is incorrect because speech signals contain not only speaker…

音频与语音处理 · 电气工程与系统科学 2023-09-26 Youzhi Tu , Man-Wai Mak , Jen-Tzung Chien

Contrastive learning has emerged as a cornerstone of unsupervised representation learning across vision, language, and graph domains, with InfoNCE as its dominant objective. Despite its empirical success, the theoretical underpinnings of…

机器学习 · 计算机科学 2025-11-18 Ge Cheng , Shuo Wang , Yun Zhang

Existing neural style transfer researches have studied to match statistical information between the deep features of content and style images, which were extracted by a pre-trained VGG, and achieved significant improvement in synthesizing…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Yunpeng Bai , Cairong Wang , Chun Yuan , Yanbo Fan , Jue Wang

Existing multi-style image captioning methods show promising results in generating a caption with accurate visual content and desired linguistic style. However, existing methods overlook the relationship between linguistic style and visual…

计算机视觉与模式识别 · 计算机科学 2023-01-30 Yucheng Zhou , Guodong Long

Graph contrastive learning defines a contrastive task to pull similar instances close and push dissimilar instances away. It learns discriminative node embeddings without supervised labels, which has aroused increasing attention in the past…

机器学习 · 计算机科学 2023-04-25 Lin Shu , Chuan Chen , Zibin Zheng

Clustering continues to be a significant and challenging task. Recent studies have demonstrated impressive results by applying clustering to feature representations acquired through self-supervised learning, particularly on small datasets.…

机器学习 · 计算机科学 2023-07-19 Fei Ding , Dan Zhang , Yin Yang , Venkat Krovi , Feng Luo

Existing text recognition methods usually need large-scale training data. Most of them rely on synthetic training data due to the lack of annotated real images. However, there is a domain gap between the synthetic data and real data, which…

计算机视觉与模式识别 · 计算机科学 2023-03-03 Mingkun Yang , Minghui Liao , Pu Lu , Jing Wang , Shenggao Zhu , Hualin Luo , Qi Tian , Xiang Bai

We study the problem of grounding distributional representations of texts on the visual domain, namely visual-semantic embeddings (VSE for short). Begin with an insightful adversarial attack on VSE embeddings, we show the limitation of…

计算与语言 · 计算机科学 2018-06-28 Haoyue Shi , Jiayuan Mao , Tete Xiao , Yuning Jiang , Jian Sun

Contrastive learning has achieved impressive success in generation tasks to militate the "exposure bias" problem and discriminatively exploit the different quality of references. Existing works mostly focus on contrastive learning on the…

Matching images and sentences demands a fine understanding of both modalities. In this paper, we propose a new system to discriminatively embed the image and text to a shared visual-textual space. In this field, most existing works apply…

计算机视觉与模式识别 · 计算机科学 2021-07-28 Zhedong Zheng , Liang Zheng , Michael Garrett , Yi Yang , Mingliang Xu , Yi-Dong Shen

A recurrent neural network that has been trained to separately model the language of several documents by unknown authors is used to measure similarity between the documents. It is able to find clues of common authorship even when the…

计算与语言 · 计算机科学 2016-08-17 Douglas Bagnall

In natural language processing (NLP) of spoken languages, word embeddings have been shown to be a useful method to encode the meaning of words. Sign languages are visual languages, which require sign embeddings to capture the visual and…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Ryan Wong , Necati Cihan Camgoz , Richard Bowden

Distance-based anomaly detection methods rely on compact in-distribution (ID) embeddings that are well separated from anomalies. However, conventional contrastive learning strategies often struggle to achieve this balance, either promoting…

机器学习 · 计算机科学 2026-02-02 Willian T. Lunardi , Abdulrahman Banabila , Dania Herzalla , Martin Andreoni

Distilling knowledge from a well-trained cumbersome network to a small one has recently become a new research topic, as lightweight neural networks with high performance are particularly in need in various resource-restricted systems. This…

计算与语言 · 计算机科学 2016-07-26 Lili Mou , Ran Jia , Yan Xu , Ge Li , Lu Zhang , Zhi Jin

Writing style is a combination of consistent decisions associated with a specific author at different levels of language production, including lexical, syntactic, and structural. In this paper, we introduce a style-aware neural model to…

计算与语言 · 计算机科学 2019-09-16 Fereshteh Jafariakinabad , Kien A. Hua

Training effective text rerankers is crucial for information retrieval. Two strategies are widely used: contrastive learning (optimizing directly on ground-truth labels) and knowledge distillation (transferring knowledge from a larger…

计算与语言 · 计算机科学 2025-11-07 Zhichao Xu , Zhiqi Huang , Shengyao Zhuang , Vivek Srikumar