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Learning from time series is fundamentally different from learning from i.i.d.\ data: temporal dependence can make long sequences effectively information-poor, yet standard evaluation protocols conflate sequence length with statistical…

机器学习 · 计算机科学 2026-03-05 Barak Gahtan , Alex M. Bronstein

When multiple investigators analyze a common dataset, the data reuse induces dependence across testing procedures, affecting the distribution of errors. Existing techniques of managing dependent tests require either cross-study coordination…

统计理论 · 数学 2026-04-10 Reid Dale , Jordan Rodu , Maria E. Currie , Mike Baiocchi

Given observations from a stationary time series, permutation tests allow one to construct exactly level $\alpha$ tests under the null hypothesis of an i.i.d. (or, more generally, exchangeable) distribution. On the other hand, when the null…

统计理论 · 数学 2020-09-09 Joseph P. Romano , Marius A. Tirlea

From scientific experiments to online A/B testing, the previously observed data often affects how future experiments are performed, which in turn affects which data will be collected. Such adaptivity introduces complex correlations between…

机器学习 · 统计学 2018-01-03 Xinkun Nie , Xiaoying Tian , Jonathan Taylor , James Zou

Current language generation models suffer from issues such as repetition, incoherence, and hallucinations. An often-repeated hypothesis is that this brittleness of generation models is caused by the training and the generation procedure…

计算与语言 · 计算机科学 2023-01-11 Kushal Arora , Layla El Asri , Hareesh Bahuleyan , Jackie Chi Kit Cheung

Increased availability of data and accessibility of computational tools in recent years have created unprecedented opportunities for scientific research driven by statistical analysis. Inherent limitations of statistics impose constrains on…

基因组学 · 定量生物学 2016-09-13 Olga A. Vsevolozhskaya , Gabriel Ruiz , Dmitri V. Zaykin

The present study investigates the performance of several statistical tests to detect publication bias in diagnostic meta-analysis by means of simulation. While bivariate models should be used to pool data from primary studies in diagnostic…

统计方法学 · 统计学 2022-11-24 Paul-Christian Bürkner , Philipp Doebler

Assessing the predictive power of both data and models holds paramount significance in time-series machine learning applications. Yet, preparing time series data accurately and employing an appropriate measure for predictive power seems to…

统计金融 · 定量金融 2023-11-22 Martin Winistörfer , Ivan Zhdankin

CONTEXT: There is growing interest in establishing software engineering as an evidence-based discipline. To that end, replication is often used to gain confidence in empirical findings, as opposed to reproduction where the goal is showing…

软件工程 · 计算机科学 2018-02-14 Martin Shepperd

There is growing interest in Bayesian clinical trial designs with informative prior distributions, e.g. for extrapolation of adult data to pediatrics, or use of external controls. While the classical type I error is commonly used to…

统计方法学 · 统计学 2023-09-06 Nicky Best , Maxine Ajimi , Beat Neuenschwander , Gaelle Saint-Hilary , Simon Wandel

In the big data era, the need to reevaluate traditional statistical methods is paramount due to the challenges posed by vast datasets. While larger samples theoretically enhance accuracy and hypothesis testing power without increasing false…

统计方法学 · 统计学 2026-01-09 Xuekui Zhang , Li Xing , Jing Zhang , Soojeong Kim

Traditional statistical theory assumes that the analysis to be performed on a given data set is selected independently of the data themselves. This assumption breaks downs when data are re-used across analyses and the analysis to be…

机器学习 · 计算机科学 2017-06-06 Adam Smith

When teaching and discussing statistical assumptions, our focus is oftentimes placed on how to test and address potential violations rather than the effects of violating assumptions on the estimates produced by our statistical models. The…

统计方法学 · 统计学 2022-06-14 Ian A Silver

While randomized controlled trials (RCTs) are the gold standard for estimating treatment effects in medical research, there is increasing use of and interest in using real-world data for drug development. One such use case is the…

统计方法学 · 统计学 2021-10-11 Devin Incerti , Michael T Bretscher , Ray Lin , Chris Harbron

Over the last decade there has been increasing concern about the biases embodied in traditional evaluation methods for Natural Language Processing/Learning, particularly methods borrowed from Information Retrieval. Without knowledge of the…

人工智能 · 计算机科学 2015-04-06 David M. W. Powers

Societal accumulation of knowledge is a complex process. The correctness of new units of knowledge depends not only on the correctness of new reasoning, but also on the correctness of old units that the new one builds on. The errors in such…

社会与信息网络 · 计算机科学 2024-06-18 Omri Ben-Eliezer , Dan Mikulincer , Elchanan Mossel , Madhu Sudan

The goal of this article is to investigate how human participants allocate their limited time to decisions with different properties. We report the results of two behavioral experiments. In each trial of the experiments, the participant…

神经元与认知 · 定量生物学 2016-07-20 Arash Khodadadi , Pegah Fakhari , Jerome R. Busemeyer

Population-wide screening is a powerful tool for controlling infectious diseases. Group testing enables such screening despite limited resources. Viral concentration of pooled samples are often positively correlated, either because…

应用统计 · 统计学 2025-04-01 Jiayue Wan , Yujia Zhang , Peter I. Frazier

Confirmation bias is a cognitive bias that adversely affects management decisions, and mathematical modelling is an aid to its detailed understanding. Bias in opinion update about the value of a parameter is modelled here assuming that…

其他统计学 · 统计学 2022-02-08 Rose D Baker