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Accurately predicting stock repurchases is crucial for quantitative investment and risk management, yet traditional static models fail to capture the complex temporal dependencies of corporate financial conditions. This paper proposes a…

统计金融 · 定量金融 2026-04-14 Xiang Ao , Jingxuan Zhang , Xinyu Zhao

Previous deep learning approaches for survival analysis have primarily relied on ranking losses to improve discrimination performance, which often comes at the expense of calibration performance. To address such an issue, we propose a novel…

机器学习 · 计算机科学 2024-11-22 Dongjoon Lee , Hyeryn Park , Changhee Lee

Survival analysis encompasses a broad range of methods for analyzing time-to-event data, with one key objective being the comparison of survival curves across groups. Traditional approaches for identifying clusters of survival curves often…

统计方法学 · 统计学 2025-12-19 Nora M. Villanueva , Marta Sestelo , Luis Meira-Machado

Accurately predicting the survival of cancer patients is crucial for personalized treatment. However, existing studies focus solely on the relationships between samples with known survival risks, without fully leveraging the value of…

机器学习 · 计算机科学 2025-07-23 Hailin Yue , Hulin Kuang , Jin Liu , Junjian Li , Lanlan Wang , Mengshen He , Jianxin Wang

We develop a deep convolutional neural network (DCNN) based framework for model-free prediction of the occurrence of extreme events both in time ("when") and in space ("where") in nonlinear physical systems of spatial dimension two. The…

机器学习 · 计算机科学 2022-04-01 Junjie Jiang , Zi-Gang Huang , Celso Grebogi , Ying-Cheng Lai

The use of observational time series data to assess the impact of multi-time point interventions is becoming increasingly common as more health and activity data are collected and digitized via wearables, social media, and electronic health…

统计方法学 · 统计学 2020-12-01 Roy Adams , Suchi Saria , Michael Rosenblum

The accurate prediction of patient prognosis is a critical challenge in clinical practice. With the availability of various patient information, physicians can optimize medical care by closely monitoring disease progression and therapy…

应用统计 · 统计学 2023-11-28 He Weiyi

Models based on deep convolutional networks have dominated recent image interpretation tasks; we investigate whether models which are also recurrent, or "temporally deep", are effective for tasks involving sequences, visual and otherwise.…

计算机视觉与模式识别 · 计算机科学 2016-06-02 Jeff Donahue , Lisa Anne Hendricks , Marcus Rohrbach , Subhashini Venugopalan , Sergio Guadarrama , Kate Saenko , Trevor Darrell

Since sequential information plays an important role in modeling user behaviors, various sequential recommendation methods have been proposed. Methods based on Markov assumption are widely-used, but independently combine several most recent…

信息检索 · 计算机科学 2016-09-20 Qiang Liu , Shu Wu , Diyi Wang , Zhaokang Li , Liang Wang

Forecasting time series with extreme events has been a challenging and prevalent research topic, especially when the time series data are affected by complicated uncertain factors, such as is the case in hydrologic prediction. Diverse…

机器学习 · 计算机科学 2023-12-15 Yanhong Li , Jack Xu , David C. Anastasiu

Recently, methods that represent data as a graph, such as graph neural networks (GNNs) have been successfully used to learn data representations and structures to solve classification and link prediction problems. The applications of such…

机器学习 · 计算机科学 2022-10-04 Usman Mahmood , Zening Fu , Vince Calhoun , Sergey Plis

Deep neural networks have shown promising results for various clinical prediction tasks such as diagnosis, mortality prediction, predicting duration of stay in hospital, etc. However, training deep networks -- such as those based on…

机器学习 · 计算机科学 2018-07-06 Priyanka Gupta , Pankaj Malhotra , Lovekesh Vig , Gautam Shroff

A major advantage of a deep convolutional neural network (CNN) is that the focused receptive field size is increased by stacking multiple convolutional layers. Accordingly, the model can explore the long-range dependency of features from…

声音 · 计算机科学 2020-06-17 Xugang Lu , Peng Shen , Sheng Li , Yu Tsao , Hisashi Kawai

Continuous-time series is essential for different modern application areas, e.g. healthcare, automobile, energy, finance, Internet of things (IoT) and other related areas. Different application needs to process as well as analyse a massive…

机器学习 · 计算机科学 2024-09-17 Mansura Habiba , Barak A. Pearlmutter , Mehrdad Maleki

Applications of machine learning in healthcare often require working with time-to-event prediction tasks including prognostication of an adverse event, re-hospitalization or death. Such outcomes are typically subject to censoring due to…

机器学习 · 计算机科学 2022-08-04 Chirag Nagpal , Willa Potosnak , Artur Dubrawski

Recurrent neural networks (RNNs) are commonly applied to clinical time-series data with the goal of learning patient risk stratification models. Their effectiveness is due, in part, to their use of parameter sharing over time (i.e., cells…

机器学习 · 计算机科学 2020-01-03 Jeeheh Oh , Jiaxuan Wang , Shengpu Tang , Michael Sjoding , Jenna Wiens

Survival analysis, or time-to-event analysis, is an important and widespread problem in healthcare research. Medical research has traditionally relied on Cox models for survival analysis, due to their simplicity and interpretability. Cox…

机器学习 · 计算机科学 2023-10-25 Mike Van Ness , Tomas Bosschieter , Natasha Din , Andrew Ambrosy , Alexander Sandhu , Madeleine Udell

Convolutional neural networks (CNN) are one of the best-performing neural network architectures for environmental sound classification (ESC). Recently, temporal attention mechanisms have been used in CNN to capture the useful information…

声音 · 计算机科学 2020-05-22 Helin Wang , Yuexian Zou , Dading Chong , Wenwu Wang

Organizations interact with the environment and with other organizations, and these interactions constitute an important way of learning and evolution. To overcome the problems that they face during their existence, organizations must…

应用统计 · 统计学 2020-05-05 Paula Lopes , Pedro Campos , Luis Meira-Machado

Many clinical studies require the follow-up of patients over time. This is challenging: apart from frequently observed drop-out, there are often also organizational and financial challenges, which can lead to reduced data collection and, in…

机器学习 · 计算机科学 2022-10-26 Fateme Nateghi Haredasht , Celine Vens
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