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Ever since Claude Shannon used entropy for his "Mathematical Theory of Communication", entropy has become a buzzword in research circles with scientists applying entropy to describe any phenomena that are reminiscent of disorder. In this…

分布式、并行与集群计算 · 计算机科学 2025-09-17 Temitayo Adefemi

Language prediction is constrained by informational entropy intrinsic to language, such that there exists a limit to how accurate any language model can become and equivalently a lower bound to language compression. The most efficient…

计算与语言 · 计算机科学 2025-11-14 Benjamin L. Badger , Matthew Neligeorge

Sample selection improves the efficiency and effectiveness of machine learning models by providing informative and representative samples. Typically, samples can be modeled as a sample graph, where nodes are samples and edges represent…

机器学习 · 计算机科学 2025-03-04 Tianchi Xie , Jiangning Zhu , Guozu Ma , Minzhi Lin , Wei Chen , Weikai Yang , Shixia Liu

A method for estimating the Shannon differential entropy of multidimensional random variables using independent samples is described. The method is based on decomposing the distribution into a product of the marginal distributions and the…

统计力学 · 物理学 2020-04-22 Gil Ariel , Yoram Louzoun

In this paper, I expand Shannon's definition of entropy into a new form of entropy that allows integration of information from different random events. Shannon's notion of entropy is a special case of my more general definition of entropy.…

机器学习 · 计算机科学 2008-11-04 Stefan Jaeger

It is well known that to estimate the Shannon entropy for symbolic sequences accurately requires a large number of samples. When some aspects of the data are known it is plausible to attempt to use this to more efficiently compute entropy.…

数据分析、统计与概率 · 物理学 2018-05-18 Andrew D. Back , Daniel Angus , Janet Wiles

We show that the way in which the Shannon entropy of sequences produced by an information source converges to the source's entropy rate can be used to monitor how an intelligent agent builds and effectively uses a predictive model of its…

适应与自组织系统 · 物理学 2007-05-23 James P. Crutchfield , David P. Feldman

Recent years have seen a surge of interest in the algorithmic estimation of stochastic entropy production (EP) from trajectory data via machine learning. A crucial element of such algorithms is the identification of a loss function whose…

统计力学 · 物理学 2024-01-22 Euijoon Kwon , Yongjoo Baek

Entropy is a measure of heterogeneity widely used in applied sciences, often when data are collected over space. Recently, a number of approaches has been proposed to include spatial information in entropy. The aim of entropy is to…

统计理论 · 数学 2019-11-12 Linda Altieri , Daniela Cocchi , Giulia Roli

The Shannon entropy is a fundamental measure for quantifying diversity and model complexity in fields such as information theory, ecology, and genetics. However, many existing studies assume that the number of species is known, an…

统计方法学 · 统计学 2026-02-23 Takato Hashino , Koji Tsukuda

Large Reasoning Models are typically trained via reinforcement learning from verifiable rewards (RLVR). However, existing approaches adopt fixed weights for positive and negative samples, and the conclusions hardly generalize to open-ended…

人工智能 · 计算机科学 2026-05-28 Yunsheng Zeng , Gen Li , Yuwei Miao , Xiandong Li , Yujin Wang , Siyu Chen , Luning Wang , Yunhao Qiao , Junfeng Wang , Jianwei Lv , Bo Yuan

The quality of image encryption is commonly measured by the Shannon entropy over the ciphertext image. However, this measurement does not consider to the randomness of local image blocks and is inappropriate for scrambling based image…

密码学与安全 · 计算机科学 2016-11-27 Yue Wu , Joseph P. Noonan , Sos Agaian

Standard evaluation in NLP typically indicates that system A is better on average than system B, but it provides little info on how to improve performance and, what is worse, it should not come as a surprise if B ends up being better than A…

计算与语言 · 计算机科学 2026-03-17 Elena Alvarez-Mellado , Julio Gonzalo

We introduce a simple, yet novel entropy-based framework to drive token efficiency in large language models during reasoning tasks. Our approach uses Shannon entropy from token-level logprobs as a confidence signal to enable early stopping,…

机器学习 · 计算机科学 2025-10-29 Aman Sharma , Paras Chopra

The major problem in information theoretic analysis of neural responses and other biological data is the reliable estimation of entropy--like quantities from small samples. We apply a recently introduced Bayesian entropy estimator to…

数据分析、统计与概率 · 物理学 2009-09-29 Ilya Nemenman , William Bialek , Rob de Ruyter van Steveninck

Shannon entropy was defined for probability distributions and then its using was expanded to measure the uncertainty of knowledge for systems with complete information. In this article, it is proposed to extend the using of Shannon entropy…

信息论 · 计算机科学 2017-09-15 Vasile Patrascu

We determine the amount of information contained in a time series of price returns at a given time scale, by using a widespread tool of the information theory, namely the Shannon entropy, applied to a symbolic representation of this time…

统计金融 · 定量金融 2022-08-26 Xavier Brouty , Matthieu Garcin

Conformal Prediction (CP) is a powerful framework for constructing prediction sets with guaranteed coverage. However, recent studies have shown that integrating confidence calibration with CP can lead to a degradation in efficiency. In this…

机器学习 · 计算机科学 2024-07-25 Rui Luo , Nicolo Colombo

We investigate the memory properties of discrete sequences built upon a finite number of states. We find that the block entropy can reliably determine the memory for systems modeled as Markov chains of arbitrary finite order. Further, we…

统计力学 · 物理学 2022-11-21 Juan De Gregorio , David Sanchez , Raul Toral

Active learning is a promising alternative to alleviate the issue of high annotation cost in the computer vision tasks by consciously selecting more informative samples to label. Active learning for object detection is more challenging and…

计算机视觉与模式识别 · 计算机科学 2022-04-19 Jiaxi Wu , Jiaxin Chen , Di Huang