中文
相关论文

相关论文: Comprehensive Analysis of Negative Sampling in Kno…

200 篇论文

In knowledge graph embedding, aside from positive triplets (ie: facts in the knowledge graph), the negative triplets used for training also have a direct influence on the model performance. In reality, since knowledge graphs are sparse and…

人工智能 · 计算机科学 2025-10-28 Ran Liu , Zhongzhou Liu , Xiaoli Li , Hao Wu , Yuan Fang

We review the current schemes of text-image matching models and propose improvements for both training and inference. First, we empirically show limitations of two popular loss (sum and max-margin loss) widely used in training text-image…

机器学习 · 计算机科学 2019-06-05 Fangyu Liu , Rongtian Ye

Multimodal Knowledge Graph Completion (MMKGC) aims to address the critical issue of missing knowledge in multimodal knowledge graphs (MMKGs) for their better applications. However, both the previous MMGKC and negative sampling (NS)…

人工智能 · 计算机科学 2025-01-28 Guanglin Niu , Xiaowei Zhang

Knowledge Graph Embedding (KGE), which projects entities and relations into continuous vector spaces, has garnered significant attention. Although high-dimensional KGE methods offer better performance, they come at the expense of…

机器学习 · 计算机科学 2024-08-06 Yichen Liu , Jiawei Chen , Defang Chen , Zhehui Zhou , Yan Feng , Can Wang

The contextual information is critical for various computer vision tasks, previous works commonly design plug-and-play modules and structural losses to effectively extract and aggregate the global context. These methods utilize fine-label…

计算机视觉与模式识别 · 计算机科学 2023-02-24 Jing Wang , Jiangyun Li , Wei Li , Lingfei Xuan , Tianxiang Zhang , Wenxuan Wang

Transfer learning aims to enhance performance on a target task by using knowledge from related tasks. However, when the source and target tasks are not closely aligned, it can lead to reduced performance, known as negative transfer. Unlike…

机器学习 · 计算机科学 2024-05-07 Zehong Wang , Zheyuan Zhang , Chuxu Zhang , Yanfang Ye

Translation distance based knowledge graph embedding (KGE) methods, such as TransE and RotatE, model the relation in knowledge graphs as translation or rotation in the vector space. Both translation and rotation are injective; that is, the…

计算与语言 · 计算机科学 2022-04-22 Jinxing Yu , Yunfeng Cai , Mingming Sun , Ping Li

In regularization Self-Supervised Learning (SSL) methods for graphs, computational complexity increases with the number of nodes in graphs and embedding dimensions. To mitigate the scalability of non-contrastive graph SSL, we propose a…

机器学习 · 计算机科学 2024-02-16 Ali Saheb Pasand , Reza Moravej , Mahdi Biparva , Raika Karimi , Ali Ghodsi

Learning by contrasting positive and negative samples is a general strategy adopted by many methods. Noise contrastive estimation (NCE) for word embeddings and translating embeddings for knowledge graphs are examples in NLP employing this…

计算与语言 · 计算机科学 2018-08-06 Avishek Joey Bose , Huan Ling , Yanshuai Cao

Incorporating tagging into neural machine translation (NMT) systems has shown promising results in helping translate rare words such as named entities (NE). However, translating NE in low-resource setting remains a challenge. In this work,…

计算与语言 · 计算机科学 2022-09-09 Zilu Tang , Derry Wijaya

Knowledge graph embedding (KGE) models have been proposed to improve the performance of knowledge graph reasoning. However, there is a general phenomenon in most of KGEs, as the training progresses, the symmetric relations tend to zero…

人工智能 · 计算机科学 2019-05-24 Jinkui Yao , Lianghua Xu

Knowledge graphs (KGs) consisting of a large number of triples have become widespread recently, and many knowledge graph embedding (KGE) methods are proposed to embed entities and relations of a KG into continuous vector spaces. Such…

机器学习 · 计算机科学 2022-05-09 Mingyang Chen , Wen Zhang , Yushan Zhu , Hongting Zhou , Zonggang Yuan , Changliang Xu , Huajun Chen

Learning low-dimensional representations for entities and relations in knowledge graphs using contrastive estimation represents a scalable and effective method for inferring connectivity patterns. A crucial aspect of contrastive learning…

机器学习 · 计算机科学 2020-10-08 Kian Ahrabian , Aarash Feizi , Yasmin Salehi , William L. Hamilton , Avishek Joey Bose

Adoption of recently developed methods from machine learning has given rise to creation of drug-discovery knowledge graphs (KG) that utilize the interconnected nature of the domain. Graph-based modelling of the data, combined with KG…

机器学习 · 计算机科学 2022-07-27 Stephen Bonner , Ufuk Kirik , Ola Engkvist , Jian Tang , Ian P Barrett

The goal of representation learning of knowledge graph is to encode both entities and relations into a low-dimensional embedding spaces. Many recent works have demonstrated the benefits of knowledge graph embedding on knowledge graph…

人工智能 · 计算机科学 2019-10-11 Wenqiang Liu , Hongyun Cai , Xu Cheng , Sifa Xie , Yipeng Yu , Hanyu Zhang

In this paper, we have explored the effects of different minibatch sampling techniques in Knowledge Graph Completion. Knowledge Graph Completion (KGC) or Link Prediction is the task of predicting missing facts in a knowledge graph. KGC…

社会与信息网络 · 计算机科学 2020-04-14 Bishal Santra , Prakhar Sharma , Sumegh Roychowdhury , Pawan Goyal

The incompleteness of Knowledge Graphs (KGs) is a crucial issue affecting the quality of AI-based services. In the scholarly domain, KGs describing research publications typically lack important information, hindering our ability to analyse…

Graphs or networks are a very convenient way to represent data with lots of interaction. Recently, Machine Learning on Graph data has gained a lot of traction. In particular, vertex classification and missing edge detection have very…

机器学习 · 计算机科学 2020-09-07 Simon Brandeis , Adrian Jarret , Pierre Sevestre

Knowledge graph completion (KGC) aims to solve the incompleteness of knowledge graphs (KGs) by predicting missing links from known triples, numbers of knowledge graph embedding (KGE) models have been proposed to perform KGC by learning…

人工智能 · 计算机科学 2023-06-14 Jining Wang , Delai Qiu , YouMing Liu , Yining Wang , Chuan Chen , Zibin Zheng , Yuren Zhou

Neural network training process takes long time when the size of training data is huge, without the large set of training values the neural network is unable to learn features. This dilemma between time and size of data is often solved…

机器学习 · 计算机科学 2019-12-16 Siddhartha Dhar Choudhury , Shashank Pandey