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Language is the medium for many political activities, from campaigns to news reports. Natural language processing (NLP) uses computational tools to parse text into key information that is needed for policymaking. In this chapter, we…

计算与语言 · 计算机科学 2023-02-08 Zhijing Jin , Rada Mihalcea

Post-hazard reconnaissance for natural disasters (e.g., earthquakes) is important for understanding the performance of the built environment, speeding up the recovery, enhancing resilience and making informed decisions related to current…

计算与语言 · 计算机科学 2021-02-15 Alicia Y. Tsai , Selim Gunay , Minjune Hwang , Pengyuan Zhai , Chenglong Li , Laurent El Ghaoui , Khalid M. Mosalam

A timely and effective response is crucial to minimize damage and save lives during natural disasters like earthquakes. Microblogging platforms, particularly Twitter, have emerged as valuable real-time information sources for such events.…

社会与信息网络 · 计算机科学 2025-03-24 Deep Patel , Panthadeep Bhattacharjee , Amit Reza , Priodyuti Pradhan

Social network data offer interesting opportunities in urban studies. In this study, we used Twitter data to analyse city dynamics over the course of the day. Users of this social network were grouped according to city zone and time slot in…

Online social media platforms increasingly rely on Natural Language Processing (NLP) techniques to detect abusive content at scale in order to mitigate the harms it causes to their users. However, these techniques suffer from various…

计算与语言 · 计算机科学 2021-10-01 Sayan Ghosh , Dylan Baker , David Jurgens , Vinodkumar Prabhakaran

Natural Language Processing (NLP) is today a very active field of research and innovation. Many applications need however big sets of data for supervised learning, suitably labelled for the training purpose. This includes applications for…

计算与语言 · 计算机科学 2021-02-23 ElMehdi Boujou , Hamza Chataoui , Abdellah El Mekki , Saad Benjelloun , Ikram Chairi , Ismail Berrada

Individuals involved in gang-related activity use mainstream social media including Facebook and Twitter to express taunts and threats as well as grief and memorializing. However, identifying the impact of gang-related activity in order to…

计算与语言 · 计算机科学 2023-04-25 Dhiraj Murthy , Constantine Caramanis , Koustav Rudra

Users' locations are important for many applications such as personalized search and localized content delivery. In this paper, we study the problem of profiling Twitter users' locations with their following network and tweets. We propose a…

数据库 · 计算机科学 2012-08-02 Rui Li , Shengjie Wang , Kevin Chen-Chuan Chang

Natural language processing (NLP) is an area of artificial intelligence that applies information technologies to process the human language, understand it to a certain degree, and use it in various applications. This area has rapidly…

This research is aimed to solve the tweet/user geolocation prediction task and provide a flexible methodology for the geotagging of textual big data. The suggested approach implements neural networks for natural language processing (NLP) to…

计算与语言 · 计算机科学 2025-01-13 Kateryna Lutsai , Christoph H. Lampert

In contrast to much previous work that has focused on location classification of tweets restricted to a specific country, here we undertake the task in a broader context by classifying global tweets at the country level, which is so far…

信息检索 · 计算机科学 2017-04-26 Arkaitz Zubiaga , Alex Voss , Rob Procter , Maria Liakata , Bo Wang , Adam Tsakalidis

Natural Language Processing (NLP) is an essential subset of artificial intelligence. It has become effective in several domains, such as healthcare, finance, and media, to identify perceptions, opinions, and misuse, among others. Privacy is…

计算与语言 · 计算机科学 2025-01-20 Andrick Adhikari , Sanchari Das , Rinku Dewri

The movements of ideas and content between locations and languages are unquestionably crucial concerns to researchers of the information age, and Twitter has emerged as a central, global platform on which hundreds of millions of people…

计算机与社会 · 计算机科学 2014-08-19 Mark Graham , Scott A. Hale , Devin Gaffney

Local place names are frequently used by residents living in a geographic region. Such place names may not be recorded in existing gazetteers, due to their vernacular nature, relative insignificance to a gazetteer covering a large area…

信息检索 · 计算机科学 2018-09-11 Yingjie Hu , Huina Mao , Grant McKenzie

Urban planning applications (energy audits, investment, etc.) require an understanding of built infrastructure and its environment, i.e., both low-level, physical features (amount of vegetation, building area and geometry etc.), as well as…

计算机视觉与模式识别 · 计算机科学 2017-09-15 Adrian Albert , Jasleen Kaur , Marta Gonzalez

Inferring latent attributes of people online is an important social computing task, but requires integrating the many heterogeneous sources of information available on the web. We propose learning individual representations of people using…

社会与信息网络 · 计算机科学 2017-05-15 Jiwei Li , Alan Ritter , Dan Jurafsky

Recently, numerous approaches have emerged in the social sciences to exploit the opportunities made possible by the vast amounts of data generated by online social networks (OSNs). Having access to information about users on such a scale…

Understanding the multifaceted effects of climate change across diverse geographic locations is crucial for timely adaptation and the development of effective mitigation strategies. As the volume of scientific literature on this topic…

计算与语言 · 计算机科学 2024-01-17 Tanwi Mallick , John Murphy , Joshua David Bergerson , Duane R. Verner , John K Hutchison , Leslie-Anne Levy

Twitter is recently being used during crises to communicate with officials and provide rescue and relief operation in real time. The geographical location information of the event, as well as users, are vitally important in such scenarios.…

机器学习 · 计算机科学 2019-01-25 Abhinav Kumar , Jyoti Prakash Singh

Our research explores the use of natural language processing (NLP) methods to automatically classify entities for the purpose of knowledge graph population and integration with food system ontologies. We have created NLP models that can…