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Diseases involve complex processes and modifications to the cellular machinery. The gene expression profile of the affected cells contains characteristic patterns linked to a disease. Hence, biological knowledge pertaining to a disease can…

The nature of the quantitative distribution of the 64 DNA codons in the human genome has been an issue of debate for over a decade. Some groups have proposed that the quantitative distribution of the DNA codons ordered as a rank-frequency…

基因组学 · 定量生物学 2015-01-06 Bohdan B. Khomtchouk

The rank-size regularity known as Zipf's law is one of scaling laws and frequently observed within the natural living world and in social institutions. Many scientists tried to derive the rank-size scaling relation by entropy-maximizing…

物理与社会 · 物理学 2018-12-21 Yanguang Chen

The task of text segmentation may be undertaken at many levels in text analysis---paragraphs, sentences, words, or even letters. Here, we focus on a relatively fine scale of segmentation, hypothesizing it to be in accord with a stochastic…

With the increased affordability and availability of whole-genome sequencing, large-scale and high-throughput gene expression is widely used to characterize diseases, including cancers. However, establishing specificity in cancer diagnosis…

机器学习 · 统计学 2018-12-21 Xi Chen , Jin Xie , Qingcong Yuan

By employing exhaustive lists of large firms in European countries, we show that the upper-tail of the distribution of firm size can be fitted with a power-law (Pareto-Zipf law), and that in this region the growth rate of each firm is…

统计力学 · 物理学 2009-11-10 Yoshi Fujiwara , Corrado Di Guilmi , Hideaki Aoyama , Mauro Gallegati , Wataru Souma

Microarray gene expression data are often accompanied by a large number of genes and a small number of samples. However, only a few of these genes are relevant to cancer, resulting in signigicant gene selection challenges. Hence, we propose…

机器学习 · 计算机科学 2021-06-11 Xiongshi Deng , Min Li , Shaobo Deng , Lei Wang

Zipf's law is the main regularity of quantitative linguistics. Despite of many works devoted to foundations of this law, it is still unclear whether it is only a statistical regularity, or it has deeper relations with information-carrying…

计算与语言 · 计算机科学 2018-09-25 Weibing Deng , Armen E. Allahverdyan

Power law is one of the the simplest forms of the relationship between different variables of a system. It leads naturally to the introduction of compound parameters describing physical properties of the system. Often one of the variables…

材料科学 · 物理学 2007-05-23 Alexander M. Korsunsky

Genetic alterations initiate tumors and enable the evolution of drug resistance. The pro-cancer view of mutations is however incomplete, and several studies show that mutational load can reduce tumor fitness. Given its negative effect,…

基因组学 · 定量生物学 2017-05-18 Ana B. Pavel , Kirill S. Korolev

Complex gene interactions play a significant role in cancer progression, driving cellular behaviors that contribute to tumor growth, invasion, and metastasis. Gene co-expression networks model the functional connectivity between genes under…

分子网络 · 定量生物学 2024-11-27 Radwa Adel , Ercan Engin Kuruoglu

Motivated by the size of cell line drug sensitivity data, researchers have been developing machine learning (ML) models for predicting drug response to advance cancer treatment. As drug sensitivity studies continue generating data, a common…

MicroRNAs play an indispensable role in numerous biological processes ranging from organismic development to tumor progression.In oncology,these microRNAs constitute a fundamental regulation role in the pathology of cancer that provides the…

定量方法 · 定量生物学 2022-01-17 Dietrich Kong , Ke Wang , Qiu-Ning Zhang , Zhi-Tong Bing

Power-law distributions are typical macroscopic features occurring in almost all complex systems observable in nature. As a result, researchers in quantitative analyses must often generate random synthetic variates obeying power-law…

物理与社会 · 物理学 2014-11-11 Filippo Radicchi

Lung cancer is a condition where there is abnormal growth of malignant cells that spread in an uncontrollable fashion in the lungs. Some common treatment strategies are surgery, chemotherapy, and radiation which aren't the best options due…

计算机视觉与模式识别 · 计算机科学 2026-03-18 Ann Rachel , Pranav M Pawar , Mithun Mukharjee , Raja M , Tojo Mathew

Gene expression analysis aims at identifying the genes able to accurately predict biological parameters like, for example, disease subtyping or progression. While accurate prediction can be achieved by means of many different techniques,…

统计方法学 · 统计学 2008-09-11 Christine De Mol , Sofia Mosci , Magali Traskine , Alessandro Verri

Background: Zipf's law and Heaps' law are observed in disparate complex systems. Of particular interests, these two laws often appear together. Many theoretical models and analyses are performed to understand their co-occurrence in real…

数据分析、统计与概率 · 物理学 2010-12-20 Linyuan Lu , Zi-Ke Zhang , Tao Zhou

This paper studies the limits of language models' statistical learning in the context of Zipf's law. First, we demonstrate that Zipf-law token distribution emerges irrespective of the chosen tokenization. Second, we show that Zipf…

计算与语言 · 计算机科学 2022-11-22 Elizaveta Zhemchuzhina , Nikolai Filippov , Ivan P. Yamshchikov

We present the GeneScore, a concept of feature reduction for Machine Learning analysis of biomedical data. Using expert knowledge, the GeneScore integrates different molecular data types into a single score. We show that the GeneScore is…

基因组学 · 定量生物学 2021-01-15 Alexander Denker , Anastasia Steshina , Theresa Grooss , Frank Ueckert , Sylvia Nürnberg

In the postgenome era many efforts have been dedicated to systematically elucidate the complex web of interacting genes and proteins. These efforts include experimental and computational methods. Microarray technology offers an opportunity…

分子网络 · 定量生物学 2009-08-04 L. Diambra