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相关论文: Sampling Issues in Bibliometric Analysis

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Statistical analysis is an important tool to distinguish systematic from chance findings. Current statistical analyses rely on distributional assumptions reflecting the structure of some underlying model, which if not met lead to problems…

统计理论 · 数学 2023-11-15 Orestis Loukas , Ho Ryun Chung

The increasing availability of curated citation data provides a wealth of resources for analyzing and understanding the intellectual influence of scientific publications. In the field of statistics, current studies of citation data have…

数字图书馆 · 计算机科学 2021-10-19 Lijia Wang , Xin Tong , Y. X. Rachel Wang

This work investigates the ``small-vs-large gap'', where repeating on fewer samples can lead to compute saving during training compared to using a larger dataset. This is observed across algorithmic tasks, architectures and optimizers and…

机器学习 · 计算机科学 2026-05-21 Jingwen Liu , Ezra Edelman , Surbhi Goel , Bingbin Liu

When a planner must decide whether it has enough evidence to make a decision based on probability, it faces the sample size problem. Current planners using probabilities need not deal with this problem because they do not generate their…

人工智能 · 计算机科学 2013-03-26 Nathaniel G. Martin , James F. Allen

Topological data analysis has emerged as a powerful tool for extracting the metric, geometric and topological features underlying the data as a multi-resolution summary statistic, and has found applications in several areas where data…

This paper presents a bibliometric analysis that examines the works cited in, as well as those citing, NIME papers; for brevity, we refer to these as `references` and `citations`. Utilizing existing tools, we have computationally extracted…

数字图书馆 · 计算机科学 2024-12-04 Stefano Fasciani

Data can be collected in scientific studies via a controlled experiment or passive observation. Big data is often collected in a passive way, e.g. from social media. In studies of causation great efforts are made to guard against bias and…

统计方法学 · 统计学 2018-11-21 Elena Pesce , Eva Riccomagno , Henry P. Wynn

With the continued digitization of societal processes, we are seeing an explosion in available data. This is referred to as big data. In a research setting, three aspects of the data are often viewed as the main sources of challenges when…

数据库 · 计算机科学 2022-05-24 Lu Chen , Yunjun Gao , Xuan Song , Zheng Li , Yifan Zhu , Xiaoye Miao , Christian S. Jensen

We examine a fundamental problem that models various active sampling setups, such as network tomography. We analyze sampling of a multivariate normal distribution with an unknown expectation that needs to be estimated: in our setup it is…

机器学习 · 统计学 2012-08-14 Assaf Hallak , Shie Mannor

Astronomers are often confronted with funky populations and distributions of objects: brighter objects are more likely to be detected; targets are selected based on colour cuts; imperfect classification yields impure samples. Failing to…

宇宙学与河外天体物理 · 物理学 2017-06-21 Samuel R. Hinton , Alex Kim , Tamara M. Davis

Given a large dataset and an estimation task, it is common to pre-process the data by reducing them to a set of sufficient statistics. This step is often regarded as straightforward and advantageous (in that it simplifies statistical…

统计计算 · 统计学 2015-07-31 Andrea Montanari

An ongoing "reproducibility crisis" calls into question scientific discoveries across a variety of disciplines ranging from life to social sciences. Replication studies aim to investigate the validity of findings in published research, and…

应用统计 · 统计学 2023-05-09 Konstantinos Bourazas , Guido Consonni , Laura Deldossi

Observational astronomy is plagued with selection effects that must be taken into account when interpreting data from astronomical surveys. Because of the physical limitations of observing time and instrument sensitivity, datasets are…

物理学史与哲学 · 物理学 2023-02-22 Sarah C. Gallagher , Chris Smeenk

Sampling from multivariate normal distributions, subjected to a variety of restrictions, is a problem that is recurrent in statistics and computing. In the present work, we demonstrate a general framework to efficiently sample a…

For the 100 largest European universities we studied the statistical properties of bibliometric indicators related to research performance, field citation density and journal impact. We find a size-dependent cumulative advantage for the…

数据分析、统计与概率 · 物理学 2007-05-23 Anthony F. J. van Raan

Bibliometrics offers a particular representation of science. Through bibliometric methods a bibliometrician will always highlight particular elements of publications, and through these elements operationalize particular representations of…

数字图书馆 · 计算机科学 2017-10-12 Thomas Franssen , Paul Wouters

Bibliometric measures derived from citation counts are increasingly being used as a research evaluation tool. Their strengths and weaknesses have been widely analyzed in the literature and are often subject of vigorous debate. We believe…

数字图书馆 · 计算机科学 2013-08-09 A. Bartoli , E. Medvet

Inference-time sampling can elicit strong reasoning abilities from language models without additional training. Existing power-sampling methods do so by sharpening the distribution over full generated outputs, favoring completions that are…

机器学习 · 计算机科学 2026-05-28 Aleksei Arzhantsev , Otmane Sakhi , Nicolas Chopin

Subject selection plays a critical role in experimental studies, especially ones with human subjects. Anecdotal evidence suggests that many such studies, done at or near university campus settings suffer from selection bias, i.e., the…

机器学习 · 计算机科学 2020-12-21 Tahereh Arabghalizi , Alexandros Labrinidis

In the era of big data, analysts usually explore various statistical models or machine learning methods for observed data in order to facilitate scientific discoveries or gain predictive power. Whatever data and fitting procedures are…

机器学习 · 统计学 2018-10-24 Jie Ding , Vahid Tarokh , Yuhong Yang