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Event detection in time series is a challenging task due to the prevalence of imbalanced datasets, rare events, and time interval-defined events. Traditional supervised deep learning methods primarily employ binary classification, where…

机器学习 · 统计学 2024-09-16 Menouar Azib , Benjamin Renard , Philippe Garnier , Vincent Génot , Nicolas André

Continuously-observed event occurrences, often exhibit self- and mutually-exciting effects, which can be well modeled using temporal point processes. Beyond that, these event dynamics may also change over time, with certain periodic trends.…

机器学习 · 计算机科学 2024-03-11 Sikun Yang , Hongyuan Zha

Event cameras have recently shown promising capabilities in instantaneous motion estimation due to their robustness to low light and fast motions. However, computing wide-baseline correspondence between two arbitrary views remains a…

计算机视觉与模式识别 · 计算机科学 2026-04-22 Ruijun Zhang , Hang Su , Kostas Daniilidis , Ziyun Wang

The goal of multimodal summarization is to extract the most important information from different modalities to form output summaries. Unlike the unimodal summarization, the multimodal summarization task explicitly leverages cross-modal…

计算机视觉与模式识别 · 计算机科学 2023-06-14 Bo He , Jun Wang , Jielin Qiu , Trung Bui , Abhinav Shrivastava , Zhaowen Wang

In this paper, an event-based tracker is presented. Inspired by recent advances in asynchronous processing of individual events, we develop a direct matching scheme that aligns spatial distributions of events at different times. More…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Maria Zafeiri , Georgios Evangelidis , Emmanouil Psarakis

We propose weakly supervised language localization networks (WSLLN) to detect events in long, untrimmed videos given language queries. To learn the correspondence between visual segments and texts, most previous methods require temporal…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Mingfei Gao , Larry S. Davis , Richard Socher , Caiming Xiong

In this paper we tackle the problem of efficient video event detection. We argue that linear detection functions should be preferred in this regard due to their scalability and efficiency during estimation and evaluation. A popular approach…

计算机视觉与模式识别 · 计算机科学 2015-09-07 Iman Abbasnejad , Sridha Sridharan , Simon Denman , Clinton Fookes , Simon Lucey

In this paper we address the application of pre-processing techniques to multi-channel time series data with varying lengths, which we refer to as the alignment problem, for downstream machine learning. The misalignment of multi-channel…

Event cameras, inspired by biological vision systems, provide a natural and data efficient representation of visual information. Visual information is acquired in the form of events that are triggered by local brightness changes. Each pixel…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Cheng Gu , Erik Learned-Miller , Daniel Sheldon , Guillermo Gallego , Pia Bideau

Identifying the salience (i.e. importance) of discourse units is an important task in language understanding. While events play important roles in text documents, little research exists on analyzing their saliency status. This paper…

计算与语言 · 计算机科学 2018-09-10 Zhengzhong Liu , Chenyan Xiong , Teruko Mitamura , Eduard Hovy

This paper examines the summarization of events that evolve through time. It discusses different types of evolution taking into account the time in which the incidents of an event are happening and the different sources reporting on the…

计算与语言 · 计算机科学 2007-05-23 Stergos D. Afantenos , Konstantina Liontou , Maria Salapata , Vangelis Karkaletsis

Background Study individuals may face repeated events overtime. However, there is no consensus around learning approaches to use in a high-dimensional framework for survival data (when the number of variables exceeds the number of…

统计方法学 · 统计学 2022-03-30 Juliette Murris , Anais Charles-Nelson , Audrey Lavenu , Sandrine Katsahian

Natural Language Processing tasks such as resolving the coreference of events require understanding the relations between two text snippets. These tasks are typically formulated as (binary) classification problems over independently induced…

计算与语言 · 计算机科学 2023-02-17 Xiaodong Yu , Wenpeng Yin , Dan Roth

When watching videos, the occurrence of a visual event is often accompanied by an audio event, e.g., the voice of lip motion, the music of playing instruments. There is an underlying correlation between audio and visual events, which can be…

多媒体 · 计算机科学 2020-08-19 Ying Cheng , Ruize Wang , Zhihao Pan , Rui Feng , Yuejie Zhang

In this paper, we introduce the concept of learning latent super-events from activity videos, and present how it benefits activity detection in continuous videos. We define a super-event as a set of multiple events occurring together in…

计算机视觉与模式识别 · 计算机科学 2018-03-30 AJ Piergiovanni , Michael S. Ryoo

Models for extreme values accommodating non-stationarity have been amply studied and evaluated from a parametric perspective. Whilst these models are flexible, in the sense that many parametrizations can be explored, they assume an…

应用统计 · 统计学 2022-02-16 Evandro Konzen , Claudia Neves , Philip Jonathan

This note discusses the interpretation of event-study plots produced by recent difference-in-differences methods. I show that even when specialized to the case of non-staggered treatment timing, the default plots produced by software for…

计量经济学 · 经济学 2026-01-21 Jonathan Roth

Discrete event sequences serve as models for numerous real-world datasets, including publications over time, project milestones, and medication dosing during patient treatments. These event sequences typically exhibit bursty behavior, where…

人机交互 · 计算机科学 2025-07-24 Yuet Ling Wong , Niklas Elmqvist

The classical approach to analyze time-to-event data, e.g. in clinical trials, is to fit Kaplan-Meier curves yielding the treatment effect as the hazard ratio between treatment groups. Afterwards commonly a log-rank test is performed in…

统计方法学 · 统计学 2020-09-16 Kathrin Möllenhoff , Achim Tresch

Adverse events are a serious issue in drug development and many prediction methods using machine learning have been developed. The random split cross-validation is the de facto standard for model building and evaluation in machine learning,…

机器学习 · 计算机科学 2022-10-25 Katsuhisa Morita , Tadahaya Mizuno , Hiroyuki Kusuhara