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It is very critical to analyze messages shared over social networks for cyber threat intelligence and cyber-crime prevention. In this study, we propose a method that leverages both domain-specific word embeddings and task-specific features…

In modern IT systems and computer networks, real-time and offline event log analysis is a crucial part of cyber security monitoring. In particular, event log analysis techniques are essential for the timely detection of cyber attacks and…

密码学与安全 · 计算机科学 2025-04-15 Risto Vaarandi , Hayretdin Bahsi

Identifying significant location categories visited by mobile users is the key to a variety of applications. This is an extremely challenging task due to the possible deviation between the estimated location coordinate and the actual…

机器学习 · 计算机科学 2017-05-25 Jinfeng Yi , Qi Lei , Wesley Gifford , Ji Liu , Junchi Yan

This paper describes a clustering method to group the most similar and important weblogs with their descriptive shared words by using a technique from multilinear algebra known as PARAFAC tensor decomposition. The proposed method first…

信息检索 · 计算机科学 2009-09-15 Andri Mirzal

Supervised event extraction systems are limited in their accuracy due to the lack of available training data. We present a method for self-training event extraction systems by bootstrapping additional training data. This is done by taking…

计算与语言 · 计算机科学 2018-08-28 James Ferguson , Colin Lockard , Daniel S. Weld , Hannaneh Hajishirzi

Social media platforms are a rich source of information these days, however, of all the available information, only a small fraction is of users' interest. To help users catch up with the latest topics of their interests from the large…

信息检索 · 计算机科学 2016-06-24 Cailing Dong , Arvind Agarwal

Audit logs containing system level events are frequently used for behavior modeling as they can provide detailed insight into cyber-threat occurrences. However, mapping low-level system events in audit logs to highlevel behaviors has been a…

密码学与安全 · 计算机科学 2023-12-14 Mohammad Mamun , Scott Buffett

With rise in security breaches over the past few years, there has been an increasing need to mine insights from social media platforms to raise alerts of possible attacks in an attempt to defend conflict during competition. We use…

社会与信息网络 · 计算机科学 2018-11-16 Soumajyoti Sarkar , Mohammad Almukaynizi , Jana Shakarian , Paulo Shakarian

Cyber attacks are rapidly increasing with the advancement of technology and there is no protection for our information. To prevent future cyberattacks it is critical to promptly recognize cyberattacks and establish strong defense mechanisms…

密码学与安全 · 计算机科学 2025-09-16 Sawera Shahid , Umara Noor , Zahid Rashid

Inference in clustering is paramount to uncovering inherent group structure in data. Clustering methods which assess statistical significance have recently drawn attention owing to their importance for the identification of patterns in high…

统计方法学 · 统计学 2021-06-18 Debora Zava Bello , Marcio Valk , Gabriela Bettella Cybis

Recent developments in image classification and natural language processing, coupled with the rapid growth in social media usage, have enabled fundamental advances in detecting breaking events around the world in real-time. Emergency…

机器学习 · 计算机科学 2020-04-13 Mahdi Abavisani , Liwei Wu , Shengli Hu , Joel Tetreault , Alejandro Jaimes

Visual Human Activity Recognition (HAR) and data fusion with other sensors can help us at tracking the behavior and activity of underground miners with little obstruction. Existing models, such as Single Shot Detector (SSD), trained on the…

计算机视觉与模式识别 · 计算机科学 2019-05-10 Schalk Wilhelm Pienaar , Reza Malekian

Social graphs are very useful for many applications, such as recommendations and community detections. However, they are only accessible to big social network operators due to both data availability and privacy concerns. Event images also…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Ming Cheung

Text clustering and topic extraction are two important tasks in text mining. Usually, these two tasks are performed separately. For topic extraction to facilitate clustering, we can first project texts into a topic space and then perform a…

计算与语言 · 计算机科学 2023-01-04 Zhongtao Chen , Chenghu Mi , Siwei Duo , Jingfei He , Yatong Zhou

Process mining provides various algorithms to analyze process executions based on event data. Process discovery, the most prominent category of process mining techniques, aims to discover process models from event logs, however, it leads to…

Social media is an essential gateway of information and communication for people worldwide. The amount of time spent and reliance of people on social media makes it a vital resource for detecting events happening in real life. Thousands of…

社会与信息网络 · 计算机科学 2022-04-05 M. Luqman Jamil , Sebastião Pais , João Cordeiro

This paper considers an $N$-server distributed computing setting with $K$ users requesting functions that are arbitrary multivariable polynomial evaluations of $L$ real (potentially non-linear) basis subfunctions, where each function output…

信息论 · 计算机科学 2026-05-01 Ali Khalesi , Ahmad Tanha , Derya Malak , Petros Elia

Online communities provide a unique way for individuals to access information from those in similar circumstances, which can be critical for health conditions that require daily and personalized management. As these groups and topics often…

社会与信息网络 · 计算机科学 2019-08-13 Mohammad Akbari , Kunal Relia , Anas Elghafari , Rumi Chunara

Tensor completion is a problem of filling the missing or unobserved entries of partially observed tensors. Due to the multidimensional character of tensors in describing complex datasets, tensor completion algorithms and their applications…

机器学习 · 统计学 2018-05-04 Qingquan Song , Hancheng Ge , James Caverlee , Xia Hu

Twitter is one of the most popular microblogging services in the world. The great amount of information within Twitter makes it an important information channel for people to learn and share news. Twitter hashtag is an popular feature that…

社会与信息网络 · 计算机科学 2018-05-01 Shih-Feng Yang , Julia Taylor Rayz