A Method of Constructing Marine Oil Spill Scenarios from Flat Text Based on Semantic Analysis

Abstract

Constructed emergency response scenarios provide a basis for decision makers to make management decisions, and the development of such scenarios considers earlier historical cases. Over the decades, the development of emergency response scenarios has mainly implemented the elements of historic cases to describe the grade and influence of an accident. This paper focuses on scenario construction and proposes a corresponding framework based on natural language processing (NLP) using text reports of marine oil spill accidents. For each accident, the original textual reports are first divided into sentence sets corresponding to the temporal evolution. Each sentence set is regarded as a textual description of a marine oil spill scenario. A method is proposed in this paper, based on parsing, named entity recognition (NER) and open information extraction (OpenIE) to process the relation triples that are extracted from the sentence sets. Finally, the relation triples are semantically clustered into different marine oil spill domains to construct scenarios. The research results are validated and indicate that the proposed scenario construction framework can be effectively used in practical applications.

Key Technologies of Marine Environment Safety

“…It is a set of states of each element of the incident. Scenario deduction is a method to create future scenarios (scenario construction) by means of hypothesis [4], prediction and etc., and analyze their impact on objectives, and thereby achieving the management of the uncertainty of disaster incident evolution. Because the occurrence and evolution of marine environment safety incidents such as typhoon and oil spill often have the characteristics of complex disaster causing mechanism, diverse secondary derivative incidents and uncertain occurrence and development, the scenario deduction of marine environment safety incidents needs to make reasonable analysis and prediction of the future development trend of incidents with the help of numerical simulation method based on historical experience and real-time environmental monitoring data of incident development, providing information and technical support for accurate decision-making and scientific response.…”

Scenario-Based Marine Oil Spill Emergency Response Using Hybrid Deep Reinforcement Learning and Case-Based Reasoning

“…A marine oil spill historical case can be divided into multiple scenarios according to its evolution. Each marine oil spill scenario can be described from the following three aspects: hazard, exposure and human behavior [21]. Since human behavior can strongly affect the results of a disaster, for example, due to the effective implementation of preparedness actions such as evacuation and rescue procedures, it is considered as a controllable driver of the development branch of oil spills.…”

The Scenario Construction and Evolution Method of Casualties in Liquid Ammonia Leakage Based on Bayesian Network

“…At present, scenario building is widely used in scenic spots, railroads, cities, mines, and other scenarios, aiming to summarize and extract key elements of various emergencies in different scenarios and then carry out emergency capability assessment, scenario evolution analysis, and association rule mining, with response strategies and accident evolution probability calculation in the respective application scope [ 10 , 11 , 12 , 13 ]. In addition, in the field of material leakage and diffusion research, including marine oil spills and chemical tank leaks, scenario-based construction provides a strong basis for managers to develop prevention and control plans, implement emergency decisions, and analyze the causes of accidents [ 14 , 15 ].…”