Collaborative Research: CISE-MSI: DP: IIS: Event Detection and Knowledge Extraction via Learning and Causality Analysis for Resilience Emergency Response

该奖项全部或部分由2021年美国救援计划法案（公法117-2）资助。该项目利用从社交媒体收集的有关即将发生的事件的信息，及时通知指定当局，以便他们在紧急情况下制定缓解行动计划。除了所提取的事件本身之外，所获取的信息可以包括（但不限于）图像、发布的消息、人们的情绪和其他周围环境，这将提高信息在理解紧急情况中的相关性和信任度。提取的事件成为调查和分析事件之间和跨域事件的时空影响，以获得进一步的见解的来源。潜在的应用是实时跟踪和监测救灾事件，以及为减灾计划预测事件。项目成果将使研究人员在信息提取和整合方面受益，并对图形模型和迁移学习感兴趣;此外，还将为学生提供有关灾害复原力和长期社区复原力的深度学习，时空数据因果关系和分析等领域的实用学习材料。此外，这项工作将提高研究能力和合作，为来自代表性不足社区的学生创造新的研究机会，以攻读计算机科学的高级学位。社交媒体数据提供了一种在灾难发生之前、期间和之后识别正在发生的事件的方法。它为指定的当局提供反应和缓解规划的信号。这项研究将使用社交媒体帖子，机器学习和迁移学习技术，主要有三个方面：1）提取本地和全局事件; 2）嵌入周围的上下文，如相关性和信任; 3）分析事件和跨域事件之间的时空关系，以获得进一步的见解。该项目在图神经网络和迁移学习的保护下提出了一种新的事件分析方法，利用了深度学习的最新进展和机会。将对由此产生的数据驱动算法进行建模，强调后果和连锁损失的社会经济方面，使系统能够根据基于社区的变量和灾害动态进行调整。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2).This project utilizes information gleaned from social media about upcoming events to inform designated authorities in a timely manner so they can prepare mitigating action plans in case of emergency. Besides the extracted events themselves, harvested information may include (but is not limited to) images, posted messages, people’s sentiments and other surrounding context which will improve relevancy and trust of the information in understanding emergency situations. Extracted events become the source for investigating and analyzing spatial-temporal influences between events and cross-domain events to derive further insights. Potential applications are real-time tracking and monitoring of events for disaster relief, and forecasting of events for mitigation plans. Project outcomes will benefit researchers in information extraction and integration with interests in graph models and transfer learning; in addition to providing practical studying materials in areas such as deep learning, spatio-temporal data causality and analysis for students about disaster resilience and progressing towards community resilience in the long term. Moreover, the work will increase research capacity and collaborations to generate new research opportunities for students from underrepresented communities to pursue advanced degrees in computer science. Social media data provides a means to identify happening events prior, during, and post disasters. It provides signals for designed authorities for reactions and mitigation planning. This research will use social media posts, machine learning, and transfer learning techniques in three thrusts: 1) Extract local and global events; 2) Embed surrounding context such as relevance and trust; 3) Analyze spatial-temporal relationship between events and cross-domain events for further insights. This project puts forth a novel approach to events analysis under the umbrella of graph neural network and transfer learning, leveraging recent advances and opportunities in deep learning. The resulting data-driven algorithms will be modelled emphasizing the socio-economic aspects of the consequences and cascading losses by allowing the system to adapt according to the community-based variables and the dynamics of the disasters. The findings will be disseminated via publications, source code, and data to reach diverse communities of researchers and students.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.