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Detecting events by using social media has been an active research problem. In this work, we investigate and compare the performance of two methods for event detection in Twitter by using Apache Storm as the stream processing…

Social and Information Networks · Computer Science 2023-11-15 Ozlem Ceren Sahin , Nesime Tatbul , Pinar Karagoz

Social media platforms are deploying machine learning based offensive language classification systems to combat hateful, racist, and other forms of offensive speech at scale. However, despite their real-world deployment, we do not yet…

Computation and Language · Computer Science 2022-03-23 Jonathan Rusert , Zubair Shafiq , Padmini Srinivasan

Dense video captioning aims to generate corresponding text descriptions for a series of events in the untrimmed video, which can be divided into two sub-tasks, event detection and event captioning. Unlike previous works that tackle the two…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Qi Zhang , Yuqing Song , Qin Jin

Detecting mixed-critical events through computer vision is challenging due to the need for contextual understanding to assess event criticality accurately. Mixed critical events, such as fires of varying severity or traffic incidents,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Filza Akhlaq , Alina Arshad , Muhammad Yehya Hayati , Jawwad A. Shamsi , Muhammad Burhan Khan

Robust visualization of complex data is critical for the effective use of NLP for event classification, as the volume of data is large and the high-dimensional structure of text makes data challenging to summarize succinctly. In event…

Computation and Language · Computer Science 2021-06-15 Sophia Henn , Abigail Sticha , Timothy Burley , Ernesto Verdeja , Paul Brenner

Contextual bandits are widely used in industrial personalization systems. These online learning frameworks learn a treatment assignment policy in the presence of treatment effects that vary with the observed contextual features of the…

Machine Learning · Computer Science 2022-05-11 Claudia Roberts , Maria Dimakopoulou , Qifeng Qiao , Ashok Chandrashekhar , Tony Jebara

Cyber-attacks continue to grow, both in terms of volume and sophistication. This is aided by an increase in available computational power, expanding attack surfaces, and advancements in the human understanding of how to make attacks…

Cryptography and Security · Computer Science 2021-03-09 Hanan Hindy , Robert Atkinson , Christos Tachtatzis , Ethan Bayne , Miroslav Bures , Xavier Bellekens

Large-scale human mobility exhibits spatial and temporal patterns that can assist policymakers in decision making. Although traditional prediction models attempt to capture these patterns, they often interfered by non-periodic public…

Machine Learning · Computer Science 2025-04-17 Xiaojie Yang , Hangli Ge , Jiawei Wang , Zipei Fan , Renhe Jiang , Ryosuke Shibasaki , Noboru Koshizuka

The increasing demand for autonomous machines in construction environments necessitates the development of robust object detection algorithms that can perform effectively across various weather and environmental conditions. This paper…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Maghsood Salimi , Mohammad Loni , Sara Afshar , Antonio Cicchetti , Marjan Sirjani

Automatic extraction of temporal relations between event pairs is an important task for several natural language processing applications such as Question Answering, Information Extraction, and Summarization. Since most existing methods are…

Machine Learning · Computer Science 2014-01-27 Seyed Abolghasem Mirroshandel , Gholamreza Ghassem-Sani

Human understanding of narrative is mainly driven by reasoning about causal relations between events and thus recognizing them is a key capability for computational models of language understanding. Computational work in this area has…

Computation and Language · Computer Science 2017-09-01 Zhichao Hu , Elahe Rahimtoroghi , Marilyn A Walker

Computational social science research has made advances in machine learning and natural language processing that support content moderators in detecting harmful content. These advances often rely on training datasets annotated by…

Computation and Language · Computer Science 2023-09-28 Angela Schöpke-Gonzalez , Siqi Wu , Sagar Kumar , Paul J. Resnick , Libby Hemphill

This paper demonstrates the potential of convolutional neural networks (CNN) for detecting and classifying prosodic events on words, specifically pitch accents and phrase boundary tones, from frame-based acoustic features. Typical…

Computation and Language · Computer Science 2017-06-05 Sabrina Stehwien , Ngoc Thang Vu

Context matters! Nevertheless, there has not been much research in exploiting contextual information in deep neural networks. For most part, the entire usage of contextual information has been limited to recurrent neural networks. Attention…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Ismail Elezi

Event cameras provide a number of benefits over traditional cameras, such as the ability to track incredibly fast motions, high dynamic range, and low power consumption. However, their application into computer vision problems, many of…

Computer Vision and Pattern Recognition · Computer Science 2019-12-20 Alex Zihao Zhu , Ziyun Wang , Kaung Khant , Kostas Daniilidis

Acoustic Scene Classification (ASC) and Sound Event Detection (SED) are two separate tasks in the field of computational sound scene analysis. In this work, we present a new dataset with both sound scene and sound event labels and use this…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-02 Helen L. Bear , Ines Nolasco , Emmanouil Benetos

Sentiment analysis of online user generated content is important for many social media analytics tasks. Researchers have largely relied on textual sentiment analysis to develop systems to predict political elections, measure economic…

Computer Vision and Pattern Recognition · Computer Science 2015-09-22 Quanzeng You , Jiebo Luo , Hailin Jin , Jianchao Yang

The contextual information of Web images is investigated to address the issue of enriching their index characterizations with semantic descriptors and therefore bridge the semantic gap (i.e. the gap between the low-level content-based…

Information Retrieval · Computer Science 2020-05-06 Fariza Fauzi , Mohammed Belkhatir

Human brains are known to be capable of speeding up visual recognition of repeatedly presented objects through faster memory encoding and accessing procedures on activated neurons. For the first time, we borrow and distill such a capability…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Yun Li , Chen Zhang , Shihao Han , Li Lyna Zhang , Baoqun Yin , Yunxin Liu , Mengwei Xu

Recent research has revealed that machine learning models have a tendency to leverage spurious correlations that exist in the training set but may not hold true in general circumstances. For instance, a sentiment classifier may erroneously…

Computation and Language · Computer Science 2024-02-06 Oscar Chew , Hsuan-Tien Lin , Kai-Wei Chang , Kuan-Hao Huang