Redirigiendo al acceso original de articulo en 20 segundos...
Inicio  /  Applied Sciences  /  Vol: 12 Par: 21 (2022)  /  Artículo
ARTÍCULO
TITULO

Sudden Event Prediction Based on Event Knowledge Graph

Yanhao Li and Wei Liu    

Resumen

Event prediction is a knowledge inference problem that predicts the consequences or effects of an event based on existing information. Early work on event prediction typically modeled the event context to predict what would happen next. Moreover, the predicted outcome was often singular. These studies had difficulty coping with both the problems of predicting sudden events in unknown contexts and predicting outcomes consisting of multiple events. To address these two problems better, we present the heterogeneous graph event prediction model (HGEP), which is based on an event knowledge graph. To cope with the situation of missing contexts, we propose a representation learning method based on the heterogeneous graph transformer. We generate event scenario representations from arguments of the initial event and other related concurrent events for the event prediction. We improve the prediction ability of the HGEP model through prior knowledge provided by scenario models in the event knowledge graph. To obtain multiple prediction outcomes, we design a scoring function to calculate the score of the occurrence probability of each event class. The event classes with scores higher than a priori values are adopted as prediction outcomes. In this paper, we create an event knowledge graph in the domain of transportation for an event prediction experiment. The experimental results show that the HGEP model can effectively make predictions with event scenario representations and has a more accurate matching rate and higher precision than the baseline model.

 Artículos similares

       
 
Fei He, Qiuying Lai, Jie Ma, Geng Wei and Weixin Li    
The Taipu River is an important cross-border river in the Yangtze River Delta region and a direct channel connecting Taihu Lake and Huangpu River. Along the main stream of the Taipu River are many sources of water, such as the Wujiang, Dingzha, and Liant... ver más
Revista: Applied Sciences

 
Djamel Saba, Abdelkader Hadidi, Omar Cheikhrouhou, Monia Hamdi and Habib Hamam    
With the sudden emergence of many dangerous viruses in recent years and with their rapid transmission and danger to individuals, most countries have adopted several strategies, such as closure and social distancing, to control the spread of the virus in ... ver más
Revista: Applied Sciences

 
Jeong-Yeob Chae, Chanhyung Jeon, Pyeongjoong Kim, Naoki Hirose, Ahyoung Ku and Jae-Hun Park    
Typhoon-induced strong winds can dramatically change the oceanic environment, occasionally resulting in sudden stratification changes. In July 2015, two consecutive typhoons, Chanhom and Nangka, passed over the Yellow and East/Japan Seas within a week. R... ver más

 
Ferdinand K. J. Oberle, Peter W. Swarzenski, Curt D. Storlazzi     Pág. 1 - 18
Groundwater resources of low-lying atoll islands are threatened due to short-term and long-term changes in rainfall, wave climate, and sea level. A better understanding of how these forcings affect the limited groundwater resources was explored on Roi-Na... ver más
Revista: Water

 
Miho Iryo-Asano, Wael Alhajyaseen     Pág. 87 - 97
Pedestrian safety is one of the most challenging issues in the road network. Understanding the pedestrian maneuver is the key to applying countermeasures against traffic crashes. It is known that behaviors of pedestrians at signalized crosswalks are sign... ver más