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Nowadays, with the unprecedented penetration of renewable distributed energy resources (DERs), the necessity of an efficient energy forecasting model is more demanding than before. Generally, forecasting models are trained using observed…

机器学习 · 统计学 2017-07-18 Hossein Sangrody , Morteza Sarailoo , Ning Zhou , Ahmad Shokrollahi , Elham Foruzan

For both investors and policymakers, forecasting the stock market is essential as it serves as an indicator of economic well-being. To this end, we harness the power of social media data, a rich source of public sentiment, to enhance the…

机器学习 · 计算机科学 2023-10-31 Shengkun Wang , YangXiao Bai , Kaiqun Fu , Linhan Wang , Chang-Tien Lu , Taoran Ji

We introduce a system for automatically generating warnings of imminent or current cyber-threats. Our system leverages the communication of malicious actors on the darkweb, as well as activity of cyber security experts on social media…

密码学与安全 · 计算机科学 2018-01-31 Anna Sapienza , Alessandro Bessi , Saranya Damodaran , Paulo Shakarian , Kristina Lerman , Emilio Ferrara

All numerical weather prediction models used for the wind industry need to produce their forecasts starting from the main synoptic hours 00, 06, 12, and 18 UTC, once the analysis becomes available. The six-hour latency time between two…

Social movements are dominated by storytelling, as narratives play a key role in how communities involved in these movements shape their identities. Thus, recognizing the accepted narratives of different communities is central to…

社会与信息网络 · 计算机科学 2022-08-10 Brian Felipe Keith Norambuena , Tanushree Mitra , Chris North

Social media like Twitter provide a common platform to share and communicate personal experiences with other people. People often post their life experiences, local news, and events on social media to inform others. Many rescue agencies…

计算与语言 · 计算机科学 2021-08-25 Ashis Kumar Chanda

Forecasting elections -- a challenging, high-stakes problem -- is the subject of much uncertainty, subjectivity, and media scrutiny. To shed light on this process, we develop a method for forecasting elections from the perspective of…

物理与社会 · 物理学 2020-09-21 Alexandria Volkening , Daniel F. Linder , Mason A. Porter , Grzegorz A. Rempala

Forecasting social media activity can be of practical use in many scenarios, from understanding trends, such as which topics are likely to engage more users in the coming week, to identifying unusual behavior, such as coordinated…

社会与信息网络 · 计算机科学 2022-10-13 Kin Wai Ng , Frederick Mubang , Lawrence O. Hall , John Skvoretz , Adriana Iamnitchi

Relevant research has been highlighted in the computing community to develop machine learning models capable of predicting the occurrence of crimes, analyzing contexts of crimes, extracting profiles of individuals linked to crime, and…

人工智能 · 计算机科学 2021-03-23 José Ribeiro , Lair Meneses , Denis Costa , Wando Miranda , Ronnie Alves

One of the fundamental challenges in the prediction of dynamic agents is robustness. Usually, most predictions are deterministic estimates of future states which are over-confident and prone to error. Recently, few works have addressed…

机器人学 · 计算机科学 2023-05-29 Anshul Nayak , Azim Eskandarian , Zachary Doerzaph , Prasenjit Ghorai

Decision-makers often observe the occurrence of events through a reporting process. City governments, for example, rely on resident reports to find and then resolve urban infrastructural problems such as fallen street trees, flooded…

计算机与社会 · 计算机科学 2025-03-28 Gabriel Agostini , Emma Pierson , Nikhil Garg

Detecting and characterizing emerging topics of discussion and consumer trends through analysis of Internet data is of great interest to businesses. This paper considers the problem of monitoring the Web to spot emerging memes - distinctive…

社会与信息网络 · 计算机科学 2010-12-30 Kristin Glass , Richard Colbaugh

The COVID-19 pandemic has caused international social tension and unrest. Besides the crisis itself, there are growing signs of rising conflict potential of societies around the world. Indicators of global mood changes are hard to detect…

机器学习 · 统计学 2020-12-09 Dirk Johannßen , Chris Biemann

In an era where social media platforms are central to political communication, the activity of bots raises pressing concerns about amplification, manipulation, and misinformation. Drawing on more than 315 million tweets posted from August…

社会与信息网络 · 计算机科学 2025-12-12 Merve Ipek Bal , Diogo Pacheco

Humanitarian agencies must be prepared to mobilize quickly in response to complex emergencies, and their effectiveness depends on their ability to identify, anticipate, and prepare for future needs. These are typically highly uncertain…

Social media has become a major driver of social change, by facilitating the formation of online social movements. Automatically understanding the perspectives driving the movement and the voices opposing it, is a challenging task as…

计算与语言 · 计算机科学 2023-10-24 Shamik Roy , Dan Goldwasser

Using a state-of-the-art large language model, we extract forward-looking and context-sensitive signals related to inflation and unemployment in the euro area from millions of Reddit submissions and comments. We develop daily indicators…

计量经济学 · 经济学 2025-06-13 Konstantin Boss , Luigi Longo , Luca Onorante

Numerous social movements (SMs) around the world help support the UN's Sustainable Development Goals (SDGs). Understanding how key events shape SMs is key to the achievement of the SDGs. We have developed SMART (Social Media Analysis &…

Time-to-event analysis is a branch of statistics that has increased in popularity during the last decades due to its many application fields, such as predictive maintenance, customer churn prediction and population lifetime estimation. In…

机器学习 · 计算机科学 2024-03-13 Camila Fernandez , Chung Shue Chen , Chen Pierre Gaillard , Alonso Silva

The explosion of Open Educational Resources (OERs) in the recent years creates the demand for scalable, automatic approaches to process and evaluate OERs, with the end goal of identifying and recommending the most suitable educational…

计算机与社会 · 计算机科学 2020-06-11 Sahan Bulathwela , María Pérez-Ortiz , Aldo Lipani , Emine Yilmaz , John Shawe-Taylor