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Tweet hashtags have the potential to improve the search for information during disaster events. However, there is a large number of disaster-related tweets that do not have any user-provided hashtags. Moreover, only a small number of tweets…

Information Retrieval · Computer Science 2020-01-07 Jishnu Ray Chowdhury , Cornelia Caragea , Doina Caragea

Mapping the extent of flood events is a necessary and important aspect of disaster management. In recent years, deep learning methods have evolved as an effective tool to quickly label high resolution imagery and provide necessary flood…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Landon Dyken , Saugat Adhikari , Pravin Poudel , Steve Petruzza , Da Yan , Will Usher , Sidharth Kumar

Effectively leveraging multimodal information from social media posts is essential to various downstream tasks such as sentiment analysis, sarcasm detection or hate speech classification. Jointly modeling text and images is challenging…

Computation and Language · Computer Science 2024-02-06 Danae Sánchez Villegas , Daniel Preoţiuc-Pietro , Nikolaos Aletras

Fake news detection in social media has become increasingly important due to the rapid proliferation of personal media channels and the consequential dissemination of misleading information. Existing methods, which primarily rely on…

Multimedia · Computer Science 2024-06-17 Wanqing Zhao , Yuta Nakashima , Haiyuan Chen , Noboru Babaguchi

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…

Computation and Language · Computer Science 2024-09-06 Francisco de Arriba-Pérez , Silvia García-Méndez , Fátima Leal , Benedita Malheiro , Juan Carlos Burguillo

Information from social media can provide essential information for emergency response during natural disasters in near real-time. However, it is difficult to identify the disaster-related posts among the large amounts of unstructured data…

Computation and Language · Computer Science 2024-08-20 David Hanny , Sebastian Schmidt , Bernd Resch

Disaster analysis in social media content is one of the interesting research domains having abundance of data. However, there is a lack of labeled data that can be used to train machine learning models for disaster analysis applications.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-30 Naina Said , Kashif Ahmad , Nicola Conci , Ala Al-Fuqaha

Visual and textual modalities contribute complementary information about events described in multimedia documents. Videos contain rich dynamics and detailed unfoldings of events, while text describes more high-level and abstract concepts.…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Brian Chen , Xudong Lin , Christopher Thomas , Manling Li , Shoya Yoshida , Lovish Chum , Heng Ji , Shih-Fu Chang

This paper contributes a new large-scale dataset for weakly supervised cross-media retrieval, named Twitter100k. Current datasets, such as Wikipedia, NUS Wide and Flickr30k, have two major limitations. First, these datasets are lacking in…

Computer Vision and Pattern Recognition · Computer Science 2017-03-21 Yuting Hu , Liang Zheng , Yi Yang , Yongfeng Huang

Social networking sites, blogs, and online articles are instant sources of news for internet users globally. However, in the absence of strict regulations mandating the genuineness of every text on social media, it is probable that some of…

Computation and Language · Computer Science 2022-12-08 Arjun Choudhry , Inder Khatri , Minni Jain , Dinesh Kumar Vishwakarma

In this paper we present our approach and the system description for Sub-task A and Sub Task B of SemEval 2019 Task 6: Identifying and Categorizing Offensive Language in Social Media. Sub-task A involves identifying if a given tweet is…

Computation and Language · Computer Science 2019-04-22 Haimin Zhang , Debanjan Mahata , Simra Shahid , Laiba Mehnaz , Sarthak Anand , Yaman Singla , Rajiv Ratn Shah , Karan Uppal

Generating images with embedded text is crucial for the automatic production of visual and multimodal documents, such as educational materials and advertisements. However, existing diffusion-based text-to-image models often struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Forouzan Fallah , Maitreya Patel , Agneet Chatterjee , Vlad I. Morariu , Chitta Baral , Yezhou Yang

Scene text retrieval aims to localize and search all text instances from an image gallery, which are the same or similar to a given query text. Such a task is usually realized by matching a query text to the recognized words, outputted by…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Hao Wang , Xiang Bai , Mingkun Yang , Shenggao Zhu , Jing Wang , Wenyu Liu

Everyday news coverage has shifted from traditional broadcasts towards a wide range of presentation formats such as first-hand, unedited video footage. Datasets that reflect the diverse array of multimodal, multilingual news sources…

Information Retrieval · Computer Science 2023-07-07 Kate Sanders , David Etter , Reno Kriz , Benjamin Van Durme

Hyperbole, or exaggeration, is a common linguistic phenomenon. The detection of hyperbole is an important part of understanding human expression. There have been several studies on hyperbole detection, but most of which focus on text…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Huixuan Zhang , Xiaojun Wan

This paper attempt to study the effectiveness of text representation schemes on two tasks namely: User Aggression and Fact Detection from the social media contents. In User Aggression detection, The aim is to identify the level of…

Information Retrieval · Computer Science 2019-04-19 Sandip Modha , Prasenjit Majumder

Given the volume and speed at which fake news spreads across social media, automatic fake news detection has become a highly important task. However, this task presents several challenges, including extracting textual features that contain…

Computation and Language · Computer Science 2025-04-29 Ingryd V. S. T. Pereira , George D. C. Cavalcanti , Rafael M. O. Cruz

The availability and interactive nature of social media have made them the primary source of news around the globe. The popularity of social media tempts criminals to pursue their immoral intentions by producing and disseminating fake news…

Multimedia · Computer Science 2021-12-29 Faeze Ghorbanpour , Maryam Ramezani , Mohammad A. Fazli , Hamid R. Rabiee

Multimodal Named Entity Recognition (MNER) is a crucial task for information extraction from social media platforms such as Twitter. Most current methods rely on attention weights to extract information from both text and images but are…

Computer Vision and Pattern Recognition · Computer Science 2023-06-30 Weide Liu , Xiaoyang Zhong , Jingwen Hou , Shaohua Li , Haozhe Huang , Yuming Fang

Flooding is the world's most costly type of natural disaster in terms of both economic losses and human causalities. A first and essential procedure towards flood monitoring is based on identifying the area most vulnerable to flooding,…