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Applying link prediction (LP) methods over knowledge graphs (KG) for tasks such as causal event prediction presents an exciting opportunity. However, typical LP models are ill-suited for this task as they are incapable of performing…

人工智能 · 计算机科学 2023-09-25 Sola Shirai , Debarun Bhattacharjya , Oktie Hassanzadeh

Modeling time-evolving knowledge graphs (KGs) has recently gained increasing interest. Here, graph representation learning has become the dominant paradigm for link prediction on temporal KGs. However, the embedding-based approaches largely…

机器学习 · 计算机科学 2021-04-02 Zhen Han , Peng Chen , Yunpu Ma , Volker Tresp

In the last few years, the solution to Knowledge Graph (KG) completion via learning embeddings of entities and relations has attracted a surge of interest. Temporal KGs(TKGs) extend traditional Knowledge Graphs (KGs) by associating static…

人工智能 · 计算机科学 2023-02-14 Zhongwu Chen , Chengjin Xu , Fenglong Su , Zhen Huang , You Dou

We develop a general framework for proving rigorous guarantees on the performance of the EM algorithm and a variant known as gradient EM. Our analysis is divided into two parts: a treatment of these algorithms at the population level (in…

统计理论 · 数学 2014-08-12 Sivaraman Balakrishnan , Martin J. Wainwright , Bin Yu

Large-scale pre-trained models such as CLIP excel in transferability and robust generalization across diverse datasets. However, adapting these models to new datasets or domains is computationally costly, especially in low-resource or…

人工智能 · 计算机科学 2025-12-02 YongTaek Lim , Suho Kang , Yewon Kim , Dokyung Yoon , KyungWoo Song

In recent years, causal modelling has been used widely to improve generalization and to provide interpretability in machine learning models. To determine cause-effect relationships in the absence of a randomized trial, we can model causal…

机器学习 · 计算机科学 2021-06-03 Rohan Giriraj , Sinnu Susan Thomas

Temporal background information can improve causal discovery algorithms by orienting edges and identifying relevant adjustment sets. We develop the Temporal Greedy Equivalence Search (TGES) algorithm and terminology essential for…

统计方法学 · 统计学 2025-02-13 Tobias Ellegaard Larsen , Claus Thorn Ekstrøm , Anne Helby Petersen

Knowledge graphs, as the cornerstone of many AI applications, usually face serious incompleteness problems. In recent years, there have been many efforts to study automatic knowledge graph completion (KGC), most of which use existing…

计算与语言 · 计算机科学 2022-10-13 Xin Lv , Yankai Lin , Zijun Yao , Kaisheng Zeng , Jiajie Zhang , Lei Hou , Juanzi Li

Complex Event Processing (CEP) is an event processing paradigm to perform real-time analytics over streaming data and match high-level event patterns. Presently, CEP is limited to process structured data stream. Video streams are…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Piyush Yadav , Dhaval Salwala , Edward Curry

The scoring function, which measures the plausibility of triplets in knowledge graphs (KGs), is the key to ensure the excellent performance of KG embedding, and its design is also an important problem in the literature. Automated machine…

机器学习 · 计算机科学 2021-04-23 Shimin Di , Quanming Yao , Yongqi Zhang , Lei Chen

Knowledge graph embeddings (KGEs) were originally developed to infer true but missing facts in incomplete knowledge repositories. In this paper, we link knowledge graph completion and counterfactual reasoning via our new task CFKGR. We…

机器学习 · 计算机科学 2024-03-12 Lena Zellinger , Andreas Stephan , Benjamin Roth

We study the problem of learning the causal relationships between a set of observed variables in the presence of latents, while minimizing the cost of interventions on the observed variables. We assume access to an undirected graph $G$ on…

数据结构与算法 · 计算机科学 2020-12-29 Raghavendra Addanki , Andrew McGregor , Cameron Musco

Knowledge Graphs (KGs) have been applied to many tasks including Web search, link prediction, recommendation, natural language processing, and entity linking. However, most KGs are far from complete and are growing at a rapid pace. To…

人工智能 · 计算机科学 2017-11-10 Baoxu Shi , Tim Weninger

Graph partition is a key component to achieve workload balance and reduce job completion time in parallel graph processing systems. Among the various partition strategies, edge partition has demonstrated more promising performance in…

数据结构与算法 · 计算机科学 2020-12-18 Zhenyu Guo , Mingyu Xiao , Yi Zhou , Dongxiang Zhang , Kian-Lee Tan

Automatic construction of large knowledge graphs (KG) by mining web-scale text datasets has received considerable attention recently. Estimating accuracy of such automatically constructed KGs is a challenging problem due to their size and…

人工智能 · 计算机科学 2016-12-02 Prakhar Ojha , Partha Talukdar

Entity Resolution (ER) is a constitutional part for integrating different knowledge graphs in order to identify entities referring to the same real-world object. A promising approach is the use of graph embeddings for ER in order to…

机器学习 · 计算机科学 2021-01-18 Daniel Obraczka , Jonathan Schuchart , Erhard Rahm

A graph generative model defines a distribution over graphs. One type of generative model is constructed by autoregressive neural networks, which sequentially add nodes and edges to generate a graph. However, the likelihood of a graph under…

机器学习 · 统计学 2021-06-15 Xiaohui Chen , Xu Han , Jiajing Hu , Francisco J. R. Ruiz , Liping Liu

Ergodic Optimization is the process of finding invariant probability measures that maximize the integral of a given function. It has been conjectured that "most" functions are optimized by measures supported on a periodic orbit, and it has…

动力系统 · 数学 2015-03-17 Anthony Quas , Jason Siefken

To understand a document with multiple events, event-event relation extraction (ERE) emerges as a crucial task, aiming to discern how natural events temporally or structurally associate with each other. To achieve this goal, our work…

信息论 · 计算机科学 2024-12-20 Peixin Huang , Xiang Zhao , Minghao Hu , Zhen Tan , Weidong Xiao

Process mining is a research area focusing on the design of algorithms that can automatically provide insights into business processes. Among the most popular algorithms are those for automated process discovery, which have the ultimate…

形式语言与自动机理论 · 计算机科学 2023-07-12 Adriano Augusto , Jan Mendling , Maxim Vidgof , Bastian Wurm