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This paper highlights the challenges, current trends, and open issues related to the representation, querying and analytics of content extracted from texts. The internet contains vast text-based information on various subjects, including…

数据库 · 计算机科学 2023-10-11 Genoveva Vargas-Solar , Mirian Halfeld Ferrari Alves , Anne-Lyse Minard Forst

Social media platforms empower us in several ways, from information dissemination to consumption. While these platforms are useful in promoting citizen journalism, public awareness etc., they have misuse potentials. Malicious users use them…

计算与语言 · 计算机科学 2023-05-10 Hamdy Mubarak , Samir Abdaljalil , Azza Nassar , Firoj Alam

This paper focuses on detecting social, physical-world events from photos posted on social media sites. The problem is important: cheap media capture devices have significantly increased the number of photos shared on these sites. The main…

社会与信息网络 · 计算机科学 2015-03-20 Yanxiang Wang , Hari Sundaram , Lexing Xie

Fake news travels at unprecedented speeds, reaches global audiences and puts users and communities at great risk via social media platforms. Deep learning based models show good performance when trained on large amounts of labeled data on…

信息检索 · 计算机科学 2021-06-28 Yaqing Wang , Fenglong Ma , Haoyu Wang , Kishlay Jha , Jing Gao

During a disaster event, images shared on social media helps crisis managers gain situational awareness and assess incurred damages, among other response tasks. Recent advances in computer vision and deep neural networks have enabled the…

计算机视觉与模式识别 · 计算机科学 2020-11-19 Firoj Alam , Ferda Ofli , Muhammad Imran , Tanvirul Alam , Umair Qazi

Keyword extraction is a crucial process in text mining. The extraction of keywords with respective contextual events in Twitter data is a big challenge. The challenging issues are mainly because of the informality in the language used. The…

计算与语言 · 计算机科学 2023-04-05 Vaibhav Khatavkar , Swapnil Mane , Parag Kulkarni

Event extraction is challenging due to the complex structure of event records and the semantic gap between text and event. Traditional methods usually extract event records by decomposing the complex structure prediction task into multiple…

计算与语言 · 计算机科学 2021-06-18 Yaojie Lu , Hongyu Lin , Jin Xu , Xianpei Han , Jialong Tang , Annan Li , Le Sun , Meng Liao , Shaoyi Chen

Twitter is recognized as a crucial platform for the dissemination and gathering of Cyber Threat Intelligence (CTI). Its capability to provide real-time, actionable intelligence makes it an indispensable tool for detecting security events,…

密码学与安全 · 计算机科学 2024-09-13 Jian Cui , Hanna Kim , Eugene Jang , Dayeon Yim , Kicheol Kim , Yongjae Lee , Jin-Woo Chung , Seungwon Shin , Xiaojing Liao

Event detection in a multimodal Twitter dataset is considered. We treat the hashtags in the dataset as instances with two modes: text and geolocation features. The text feature consists of a bag-of-words representation. The geolocation…

应用统计 · 统计学 2016-05-17 Yasin Yilmaz , Alfred Hero

Social network analysis is leveraged in a variety of applications such as identifying influential entities, detecting communities with special interests, and determining the flow of information and innovations. However, existing approaches…

社会与信息网络 · 计算机科学 2017-01-31 Stefan Siersdorfer , Philipp Kemkes , Hanno Ackermann , Sergej Zerr

A small survey on event detection using Twitter. This work first defines the problem statement, and then summarizes and collates the different research works towards solving the problem.

社会与信息网络 · 计算机科学 2022-08-02 Debanjan Datta

Event extraction is an important natural language processing (NLP) task of identifying events in an unstructured text. Although a plethora of works deal with event extraction from new articles, clinical text etc., only a few works focus on…

信息检索 · 计算机科学 2026-02-27 Chaitanya Kirti , Ayon Chattopadhyay , Ashish Anand , Prithwijit Guha

Fashion knowledge helps people to dress properly and addresses not only physiological needs of users, but also the demands of social activities and conventions. It usually involves three mutually related aspects of: occasion, person and…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Yunshan Ma , Xun Yang , Lizi Liao , Yixin Cao , Tat-Seng Chua

Mining social media content for tasks such as detecting personal experiences or events, suffer from lexical sparsity, insufficient training data, and inventive lexicons. To reduce the burden of creating extensive labeled data and improve…

计算与语言 · 计算机科学 2020-04-23 Payam Karisani , Joyce C. Ho , Eugene Agichtein

Responding to natural disasters, such as earthquakes, floods, and wildfires, is a laborious task performed by on-the-ground emergency responders and analysts. Social media has emerged as a low-latency data source to quickly understand…

计算机视觉与模式识别 · 计算机科学 2020-08-24 Ethan Weber , Nuria Marzo , Dim P. Papadopoulos , Aritro Biswas , Agata Lapedriza , Ferda Ofli , Muhammad Imran , Antonio Torralba

Social event detection involves identifying and categorizing important events from social media, which relies on labeled data, but annotation is costly and labor-intensive. To address this problem, we propose Augmentation framework for…

计算与语言 · 计算机科学 2025-09-05 Congbo Ma , Yuxia Wang , Jia Wu , Jian Yang , Jing Du , Zitai Qiu , Qing Li , Hu Wang , Preslav Nakov

The data gathered in all kind of web-based systems, which enable users to interact with each other, provides an opportunity to extract social networks that consist of people and relationships between them. The emerging structures are very…

社会与信息网络 · 计算机科学 2014-07-07 Katarzyna Musial , Piotr Bródka , Przemysław Kazienko , Jarosław Gaworecki

Social media has become an integral part of our daily lives. During time-critical events, the public shares a variety of posts on social media including reports for resource needs, damages, and help offerings for the affected community.…

社会与信息网络 · 计算机科学 2019-11-04 Ganesh Nalluru , Rahul Pandey , Hemant Purohit

Social media platforms enable the rapid dissemination and consumption of information. However, users instantly consume such content regardless of the reliability of the shared data. Consequently, the latter crowdsourcing model is exposed to…

Nowadays, people from all around the world use social media sites to share information. Twitter for example is a platform in which users send, read posts known as tweets and interact with different communities. Users share their daily…

计算与语言 · 计算机科学 2020-07-14 Antony Samuels , John Mcgonical