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相关论文: Contrastive Triple Extraction with Generative Tran…

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Current methods to extract relational triples directly make a prediction based on a possible entity pair in a raw sentence without depending on entity recognition. The task suffers from a serious semantic overlapping problem, in which…

计算与语言 · 计算机科学 2024-10-28 Xiaocheng Luo , Yanping Chen , Ruixue Tang , Caiwei Yang , Ruizhang Huang , Yongbin Qin

What matters for contrastive learning? We argue that contrastive learning heavily relies on informative features, or "hard" (positive or negative) features. Early works include more informative features by applying complex data…

计算机视觉与模式识别 · 计算机科学 2023-08-10 Jiangmeng Li , Wenwen Qiang , Changwen Zheng , Bing Su , Hui Xiong

Pursuing realistic results according to human visual perception is the central concern in the image transformation tasks. Perceptual learning approaches like perceptual loss are empirically powerful for such tasks but they usually rely on…

计算机视觉与模式识别 · 计算机科学 2020-06-25 Kangfu Mei , Yao Lu , Qiaosi Yi , Haoyu Wu , Juncheng Li , Rui Huang

Keyphrase generation (KG) aims to generate a set of summarizing words or phrases given a source document, while keyphrase extraction (KE) aims to identify them from the text. Because the search space is much smaller in KE, it is often…

计算与语言 · 计算机科学 2023-10-13 Minseok Choi , Chaeheon Gwak , Seho Kim , Si Hyeong Kim , Jaegul Choo

In this paper, we present a novel integrated approach for keyphrase generation (KG). Unlike previous works which are purely extractive or generative, we first propose a new multi-task learning framework that jointly learns an extractive…

计算与语言 · 计算机科学 2019-04-09 Wang Chen , Hou Pong Chan , Piji Li , Lidong Bing , Irwin King

While transformer-based models have achieved state-of-the-art results in a variety of classification and generation tasks, their black-box nature makes them challenging for interpretability. In this work, we present a novel visual…

计算与语言 · 计算机科学 2023-11-22 Raymond Li , Ruixin Yang , Wen Xiao , Ahmed AbuRaed , Gabriel Murray , Giuseppe Carenini

Contrastive learning shows great potential in unpaired image-to-image translation, but sometimes the translated results are in poor quality and the contents are not preserved consistently. In this paper, we uncover that the negative…

计算机视觉与模式识别 · 计算机科学 2021-08-12 Weilun Wang , Wengang Zhou , Jianmin Bao , Dong Chen , Houqiang Li

Unsupervised learning has recently made exceptional progress because of the development of more effective contrastive learning methods. However, CNNs are prone to depend on low-level features that humans deem non-semantic. This dependency…

计算机视觉与模式识别 · 计算机科学 2022-01-04 Songwei Ge , Shlok Mishra , Haohan Wang , Chun-Liang Li , David Jacobs

In this paper, we propose a novel method for joint entity and relation extraction from unstructured text by framing it as a conditional sequence generation problem. In contrast to conventional generative information extraction models that…

计算与语言 · 计算机科学 2024-01-17 Urchade Zaratiana , Nadi Tomeh , Pierre Holat , Thierry Charnois

Fine-tuning is widely used to adapt language models for specific goals, often leveraging real-world data such as patient records, customer-service interactions, or web content in languages not covered in pre-training. These datasets are…

机器学习 · 计算机科学 2024-10-22 Masaru Isonuma , Ivan Titov

Contrastive learning has emerged as an essential approach for self-supervised learning in visual representation learning. The central objective of contrastive learning is to maximize the similarities between two augmented versions of an…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Hengkui Dong , Xianzhong Long , Yun Li , Lei Chen

In this paper, we propose a novel method, aggregation cross-entropy (ACE), for sequence recognition from a brand new perspective. The ACE loss function exhibits competitive performance to CTC and the attention mechanism, with much quicker…

计算机视觉与模式识别 · 计算机科学 2019-04-19 Zecheng Xie , Yaoxiong Huang , Yuanzhi Zhu , Lianwen Jin , Yuliang Liu , Lele Xie

To equip artificial intelligence with a comprehensive understanding towards a temporal world, video and 4D panoptic scene graph generation abstracts visual data into nodes to represent entities and edges to capture temporal relations.…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Thong Thanh Nguyen , Xiaobao Wu , Yi Bin , Cong-Duy T Nguyen , See-Kiong Ng , Anh Tuan Luu

Extractive summarization aims to form a summary by directly extracting sentences from the source document. Existing works mostly formulate it as a sequence labeling problem by making individual sentence label predictions. This paper…

计算与语言 · 计算机科学 2023-05-12 Haopeng Zhang , Xiao Liu , Jiawei Zhang

A data augmentation module is utilized in contrastive learning to transform the given data example into two views, which is considered essential and irreplaceable. However, the predetermined composition of multiple data augmentations brings…

计算机视觉与模式识别 · 计算机科学 2022-08-23 Junbo Zhang , Kaisheng Ma

In recent years, the explosion of web videos makes text-video retrieval increasingly essential and popular for video filtering, recommendation, and search. Text-video retrieval aims to rank relevant text/video higher than irrelevant ones.…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Chen Jiang , Hong Liu , Xuzheng Yu , Qing Wang , Yuan Cheng , Jia Xu , Zhongyi Liu , Qingpei Guo , Wei Chu , Ming Yang , Yuan Qi

Unsupervised dependency parsing aims to learn a dependency parser from unannotated sentences. Existing work focuses on either learning generative models using the expectation-maximization algorithm and its variants, or learning…

计算与语言 · 计算机科学 2017-09-26 Yong Jiang , Wenjuan Han , Kewei Tu

Contrastive Learning has recently achieved state-of-the-art performance in a wide range of tasks. Many contrastive learning approaches use mined hard negatives to make batches more informative during training but these approaches are…

机器学习 · 计算机科学 2023-06-08 Vin Sachidananda , Ziyi Yang , Chenguang Zhu

Contrastive learning has been used to learn a high-quality representation of the image in computer vision. However, contrastive learning is not widely utilized in natural language processing due to the lack of a general method of data…

计算与语言 · 计算机科学 2021-04-29 Peng Su , Yifan Peng , K. Vijay-Shanker

Neural conversational models learn to generate responses by taking into account the dialog history. These models are typically optimized over the query-response pairs with a maximum likelihood estimation objective. However, the…

计算与语言 · 计算机科学 2020-03-05 Shaoxiong Feng , Hongshen Chen , Kan Li , Dawei Yin