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Nowadays, Twitter has become a great source of user-generated information about events. Very often people report causal relationships between events in their tweets. Automatic detection of causality information in these events might play an…

信息检索 · 计算机科学 2019-01-14 Humayun Kayesh , Md. Saiful Islam , Junhu Wang

Real-time social media data can provide useful information on evolving hazards. Alongside traditional methods of disaster detection, the integration of social media data can considerably enhance disaster management. In this paper, we…

社会与信息网络 · 计算机科学 2023-01-31 Elena-Simona Apostol , Ciprian-Octavian Truică , Adrian Paschke

Multimedia content in social media platforms provides significant information during disaster events. The types of information shared include reports of injured or deceased people, infrastructure damage, and missing or found people, among…

计算机视觉与模式识别 · 计算机科学 2020-04-27 Ferda Ofli , Firoj Alam , Muhammad Imran

In this contribution, we develop an accurate and effective event detection method to detect events from a Twitter stream, which uses visual and textual information to improve the performance of the mining process. The method monitors a…

信息检索 · 计算机科学 2015-03-16 Samar M. Alqhtani , Suhuai Luo , Brian Regan

Storytelling, whether via fables, news reports, documentaries, or memoirs, can be thought of as the communication of interesting and related events that, taken together, form a concrete process. It is desirable to extract the event chains…

计算与语言 · 计算机科学 2021-09-23 Xiyang Zhang , Muhao Chen , Jonathan May

During disasters, extracting causal relations from social media can strengthen situational awareness by identifying factors linked to casualties, physical damage, infrastructure disruption, and cascading impacts. However, disaster-related…

计算与语言 · 计算机科学 2026-05-13 Ujun Jeong , Saketh Vishnubhatla , Bohan Jiang , Andre Harrison , Adrienne Raglin , Huan Liu

Twitter has become one of the main sources of news for many people. As real-world events and emergencies unfold, Twitter is abuzz with hundreds of thousands of stories about the events. Some of these stories are harmless, while others could…

社会与信息网络 · 计算机科学 2016-06-21 Soroush Vosoughi , Deb Roy

Social networking services have became an important communication channel in time of emergency. The aim of this study is to create a machine learning language model that is able to investigate if a person or area was in danger or not. The…

计算与语言 · 计算机科学 2022-02-03 Anh Duc Le

Social media such as tweets are emerging as platforms contributing to situational awareness during disasters. Information shared on Twitter by both affected population (e.g., requesting assistance, warning) and those outside the impact zone…

信息检索 · 计算机科学 2017-05-08 Hien To , Sumeet Agrawal , Seon Ho Kim , Cyrus Shahabi

Feature extraction is an important process of machine learning and deep learning, as the process make algorithms function more efficiently, and also accurate. In natural language processing used in deception detection such as fake news…

计算与语言 · 计算机科学 2020-11-04 HyeonJun Kim

News is a pertinent source of information on financial risks and stress factors, which nevertheless is challenging to harness due to the sparse and unstructured nature of natural text. We propose an approach based on distributional…

计算金融 · 定量金融 2015-07-29 Samuel Rönnqvist , Peter Sarlin

Social media is often the first place where communities discuss the latest societal trends. Prior works have utilized this platform to extract epidemic-related information (e.g. infections, preventive measures) to provide early warnings for…

计算与语言 · 计算机科学 2024-10-25 Tanmay Parekh , Jeffrey Kwan , Jiarui Yu , Sparsh Johri , Hyosang Ahn , Sreya Muppalla , Kai-Wei Chang , Wei Wang , Nanyun Peng

The analysis of natural disasters such as floods in a timely manner often suffers from limited data due to coarsely distributed sensors or sensor failures. At the same time, a plethora of information is buried in an abundance of images of…

计算机视觉与模式识别 · 计算机科学 2020-11-12 Björn Barz , Kai Schröter , Ann-Christin Kra , Joachim Denzler

It is a challenging and complex task to acquire information from different regions of a disaster-affected area in a timely fashion. The extensive spread and reach of social media and networks allow people to share information in real-time.…

社会与信息网络 · 计算机科学 2019-08-06 Md. Yasin Kabir , Sanjay Madria

Socio-linguistic indicators of affectively-relevant phenomena, such as emotion or sentiment, are often extracted from text to better understand features of human-computer interactions, including on social media. However, an indicator that…

机器学习 · 计算机科学 2025-11-24 Keith Burghardt , Daniel M. T. Fessler , Chyna Tang , Anne Pisor , Kristina Lerman

Due to their often unexpected nature, natural and man-made disasters are difficult to monitor and detect for journalists and disaster management response teams. Journalists are increasingly relying on signals from social media to detect…

社会与信息网络 · 计算机科学 2017-09-11 Armineh Nourbakhsh , Quanzhi Li , Xiaomo Liu , Sameena Shah

This workshop is the fourth issue of a series of workshops on automatic extraction of socio-political events from news, organized by the Emerging Market Welfare Project, with the support of the Joint Research Centre of the European…

计算与语言 · 计算机科学 2021-08-19 Ali Hürriyetoğlu , Hristo Tanev , Vanni Zavarella , Jakub Piskorski , Reyyan Yeniterzi , Erdem Yörük

Web archives are typically very broad in scope and extremely large in scale. This makes data analysis appear daunting, especially for non-computer scientists. These collections constitute an increasingly important source for researchers in…

数字图书馆 · 计算机科学 2017-07-31 Gerhard Gossen , Elena Demidova , Thomas Risse

Event extraction (EE) is one of the core information extraction tasks, whose purpose is to automatically identify and extract information about incidents and their actors from texts. This may be beneficial to several domains such as…

机器学习 · 计算机科学 2020-10-29 Ali Balali , Masoud Asadpour , Ricardo Campos , Adam Jatowt

This paper employs deep learning in detecting the traffic accident from social media data. First, we thoroughly investigate the 1-year over 3 million tweet contents in two metropolitan areas: Northern Virginia and New York City. Our results…

社会与信息网络 · 计算机科学 2018-01-08 Zhenhua Zhang , Qing Heb , Jing Gao , Ming Ni