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Anomalous event detection in surveillance videos is a challenging and practical research problem among image and video processing community. Compared to the frame-level annotations of anomalous events, obtaining video-level annotations is…

计算机视觉与模式识别 · 计算机科学 2020-09-28 Muhammad Zaigham Zaheer , Arif Mahmood , Hochul Shin , Seung-Ik Lee

Traditional continual event detection relies on abundant labeled data for training, which is often impractical to obtain in real-world applications. In this paper, we introduce continual few-shot event detection (CFED), a more commonly…

计算与语言 · 计算机科学 2024-03-27 Chenlong Zhang , Pengfei Cao , Yubo Chen , Kang Liu , Zhiqiang Zhang , Mengshu Sun , Jun Zhao

For many business applications that require the processing, indexing, and retrieval of professional documents such as legal briefs (in PDF format etc.), it is often essential to classify the pages of any given document into their…

计算与语言 · 计算机科学 2023-04-26 Pavlos Fragkogiannis , Martina Forster , Grace E. Lee , Dell Zhang

$\textbf{Objective}$: To develop a multi-channel device event segmentation and feature extraction algorithm that is robust to changes in data distribution. $\textbf{Methods}$: We introduce an adaptive transfer learning algorithm to classify…

Event classification can add valuable information for semantic search and the increasingly important topic of fact validation in news. So far, only few approaches address image classification for newsworthy event types such as natural…

计算机视觉与模式识别 · 计算机科学 2020-11-11 Eric Müller-Budack , Matthias Springstein , Sherzod Hakimov , Kevin Mrutzek , Ralph Ewerth

Most current extractive summarization models generate summaries by selecting salient sentences. However, one of the problems with sentence-level extractive summarization is that there exists a gap between the human-written gold summary and…

计算与语言 · 计算机科学 2020-11-20 Ruifeng Yuan , Zili Wang , Wenjie Li

This paper introduces improved methods for sub-event detection in social media streams, by applying neural sequence models not only on the level of individual posts, but also directly on the stream level. Current approaches to identify…

计算与语言 · 计算机科学 2019-03-14 Giannis Bekoulis , Johannes Deleu , Thomas Demeester , Chris Develder

Pathology reports contain useful information such as the main involved organ, diagnosis, etc. These information can be identified from the free text reports and used for large-scale statistical analysis or serve as annotation for other…

计算与语言 · 计算机科学 2019-11-13 Ruibin Ma , Po-Hsuan Cameron Chen , Gang Li , Wei-Hung Weng , Angela Lin , Krishna Gadepalli , Yuannan Cai

Hierarchical multi-label text classification (HMTC) has been gaining popularity in recent years thanks to its applicability to a plethora of real-world applications. The existing HMTC algorithms largely focus on the design of classifiers,…

计算与语言 · 计算机科学 2021-04-13 Xinyi Zhang , Jiahao Xu , Charlie Soh , Lihui Chen

In this work, we carried out a study about the use of attention-based algorithms to automate the categorization of Brazilian case law documents. We used data from the Kollemata Project to produce two distinct datasets with adequate class…

机器学习 · 计算机科学 2022-03-15 Felipe R. Serras , Marcelo Finger

Most existing time-to-event methods focus on either single-event or competing-risks settings, leaving multi-event scenarios relatively underexplored. In many healthcare applications, for example, a patient may experience multiple clinical…

In this article we propose a novel ranking algorithm, referred to as HierLPR, for the multi-label classification problem when the candidate labels follow a known hierarchical structure. HierLPR is motivated by a new metric called eAUC that…

机器学习 · 统计学 2018-10-19 Christine Ho , Yuting Ye , Ci-Ren Jiang , Wayne Tai Lee , Haiyan Huang

The rapid increase in cybersecurity vulnerabilities necessitates automated tools for analyzing and classifying vulnerability reports. This paper presents a novel Vulnerability Report Classifier that leverages the BERT (Bidirectional Encoder…

密码学与安全 · 计算机科学 2025-03-28 Himanshu Tiwari

The news landscape is continuously evolving, with an ever-increasing volume of information from around the world. Automated event detection within this vast data repository is essential for monitoring, identifying, and categorizing…

计算与语言 · 计算机科学 2024-07-09 Adane Nega Tarekegn

BERT, which stands for Bidirectional Encoder Representations from Transformers, is a recently introduced language representation model based upon the transfer learning paradigm. We extend its fine-tuning procedure to address one of its…

计算与语言 · 计算机科学 2019-10-25 Raghavendra Pappagari , Piotr Żelasko , Jesús Villalba , Yishay Carmiel , Najim Dehak

Medical errors are leading causes of death in the US and as such, prevention of these errors is paramount to promoting health care. Patient Safety Event reports are narratives describing potential adverse events to the patients and are…

计算与语言 · 计算机科学 2017-02-24 Arman Cohan , Allan Fong , Nazli Goharian , Raj Ratwani

Radiology reports contain a diverse and rich set of clinical abnormalities documented by radiologists during their interpretation of the images. Comprehensive semantic representations of radiological findings would enable a wide range of…

计算与语言 · 计算机科学 2021-12-28 Wilson Lau , Kevin Lybarger , Martin L. Gunn , Meliha Yetisgen

Detecting important events in high volume news streams is an important task for a variety of purposes.The volume and rate of online news increases the need for automated event detection methods thatcan operate in real time. In this paper we…

社会与信息网络 · 计算机科学 2020-05-29 Iraklis Moutidis , Hywel T. P. Williams

Temporal event data are collected across a broad range of domains, and a variety of visual analytics techniques have been developed to empower analysts working with this form of data. These techniques generally display aggregate statistics…

人机交互 · 计算机科学 2019-11-13 David Gotz , Jonathan Zhang , Wenyuan Wang , Joshua Shrestha , David Borland

Anomaly detection plays an important role in modern data-driven security applications, such as detecting suspicious access to a socket from a process. In many cases, such events can be described as a collection of categorical values that…

机器学习 · 计算机科学 2016-08-29 Ting Chen , Lu-An Tang , Yizhou Sun , Zhengzhang Chen , Kai Zhang