| 论文/程序题目 | 作者 | 下载 | 主要内容介绍 | Hits |
The Common Extremalities in Biology and Physics |
Adam Moroz |  |
Maximum Energy Dissipation Principle in Chemistry, Biology, Physics and Evolution | 119 |
| Maximum Entropy and Ecology |
John Harte |  |
This book builds the foundation for, and constructs upon it, a theory of ecology designed to explain a lot from a little. By “little” I mean only inferential logic derived from information theory. And by “a lot” I mean the ecological phenomena that are the focus of macroecology: patterns in the partitioning of space and energy by individual organisms and by species in ecosystems. | 96 |
| 互联网与复杂网络相关论文11-19 |
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11-Graph structure in the web 12-The constructal unification of biological and geophysical design 13-Size and form in efficient transportation networks 14-Ranking web sites with real user traffic 15-Near linear time algorithm to detect community structures in large-scale networks 16-Role-based similarity in directed networks 17-Accelerating Growth and Size-dependent Distribution of Collective Human Activities Online 18-Hierarchical structure and the prediction of missing links in networks 19-Analyzing (social_media) networks with NodeXL | 221 | |
| BOOK - Mining the Social Web |
Matthew A. Russell | |
BOOK - Mining the Social Web | 121 |
| 互联网与复杂网络相关论文1-10 |
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1-Collective_Dynamics_of_“Small-world”_Networks 2-Emergence_of_scaling_in_random_networks 3-the LongTail 4-The origin of bursts and heavy tails in human dynamics 5-Power laws, Pareto distributions and Zipfʼs law 6-Finding community structure in very large networks 7-Finding community structure in networks using the eigenvectors of matrices 8-Finding and evaluating community structure in networks 9-Uncovering the overlapping community structure of complex networks in nature and society 10-The PageRank Citation Ranking Bringing Order to the Web | 133 | |
| Toward a general understanding of the scaling laws in human and animal mobility |
Yanqing Hu,Jiang Zhang | |
Recent research highlighted the scaling property of human and animal mobility. An interesting issue is that the exponents of scaling law for animals and humans in different situations are quite different. This paper proposes a general optimization model, a random walker following scaling laws (whose traveling distances in each step obey a power law distribution with exponent α) tries to diversify its visiting places under a given total traveling distance with a home-return probability. The results show that different optimal exponents in between 1 and 2 can emerge naturally. Therefore, the scaling property of human and animal mobility can be understood in our framework where the discrepancy of the scaling law exponents is due to the home-return constraint under the maximization of the visiting places diversity. | 245 |
| The "S" curve relationship between export diversity and economic size |
Lunchao Hu,Jiang Zhang | |
The highly detailed international trade data among all countries in the world during 1971–2000 shows that the kinds of export goods and the logarithmic GDP (gross domestic production) of a country have an S-shaped relationship. This indicates that all countries can be divided into three stages accordingly. First, the small economies always export very few kinds of products as we expect. Second, once the economic size magnitude (log(GDP)) of a country is beyond a threshold, its export diversity may increase dramatically. However, this is not the case for large economies because a ceiling on the export diversity is observed when their logarithmic GDPs are higher than another threshold. This pattern is very stable for different years although the concrete parameters of the fitting sigmoid functions may change with time. In addition, we also discussed other relationships such as import diversity with respect to logarithmic GDP, diversity of exporters with respect to the number of export goods etc.; all of these relationships show S-shaped or power law patterns which can be derived by the ‘‘S’’ curve relations. Although this paper does not explain the origin of the S-shaped curve, it may provide a basic empirical fact and insights for economic diversity. | 262 |
| Accelerating growth and size-dependent distribution of human online activities |
Ling-Fei Wu,Jiang Zhang | |
本文研究了互联网社区中的加速生长现象，也就是网站的活动数（发帖总数、添加Tag总数）与活跃用户数量之间的超线性关系。并利用数学推导和实证数据证明，这种关系与活动分布的尺度依赖性有关 | 407 |
| GEOMETRY, TOPOLOGY AND PHYSICS |
MIKIO NAKAHARA | |
几何、拓扑与物理学 | 585 |
| From Maximum Entropy to Maximum Entropy Production |
Nathaniel Virgo | |
Evidence from climate science suggests that a principle of maximum thermodynamic entropy production can be used to make predictions about some physical systems. I discuss the general form of this principle and an inherent problem with it, currently unsolved by theoretical approaches: how to determine which system it should be applied to. I suggest a new way to derive the principle from statistical mechanics, and present a tentative solution to the system boundary problem. I discuss the need for experimental validation of the principle, and its impact on the way we see the relationship between thermodynamics and kinetics. | 462 |
| 自复制自动机理论第一部分翻译稿 |
东方和尚 | |
von Neumann的这部经典的最重要的部分（5篇讲座的讲稿）终于被东方和尚 翻译完了。毫不夸张地说，这五篇文章不仅仅预测了复杂性科学未来100年的发展方向（事实上很多领域已经验证了von Neumann的预言），而且还指出了生命逻辑最核心的奥秘：热力学、信息论与自指之间的深刻联系。 | 1542 |
| ebook: An Introduction of Econophysics |
ROSARIO N. MANTEGNA and H. EUGENE STANLEY | |
本书是经济物理学的代表作 | 616 |
| History and outlook of statistical physics |
Dieter Flamm | |
统计物理的一个简明的历史回顾和展望，因为以前上传的链接坏掉，重新上传一次 | 515 |
| Mark Newman: Complex Systems --- A Survey |
Mark Newmann | |
A complex system is a system composed of many interacting parts, often called agents, which displays collective behavior that does not follow trivially from the behaviors of the individual parts. Examples include condensed matter systems, ecosystems, stock markets and economies, biological evolution, and indeed the whole of human society. Substantial progress has been made in the quantitative understanding of complex systems, particularly since the 1980s, using a combination of basic theory, much of it derived from physics, and computer simulation. The subject is a broad one, drawing on techniques and ideas from a wide range of areas. Here I give a short survey and an annotated bibliography of resources for those interested in learning about complex systems. | 468 |
| The constructal unification of biological and geophysical design |
Adrian Bejan,James H. Marden | |
Here we show that the emergence of scaling laws in inanimate (geophysical) flow systems is analogous to the emergence of allometric laws in animate (biological) flow systems, and that features of evolutionary “design” in nature can be predicted based on a principle of physics (the constructal law): “For a finite-size flow system to persist in time (to live) it must evolve in such a way that it provides easier and easier access to its currents”, meaning that the configuration and function of flow systems change over time in a predictable way that improves function, distributes imperfection, and creates geometries that best arrange high and low resistance areas or volumes. This theoretical unification of the phenomena of animate and inanimate flow design generation is illustrated with examples from biology (lung design, animal locomotion) and the physics of fluid flow (river basins, turbulent flow structure, self-lubrication). The place of this design-generation principle as a self-standing law in thermodynamics is discussed. Natural flow systems evolve by acquiring flow configuration in a definite direction in time: existing configurations are replaced by easier flowing configurations. | 535 |
| “佩奇排序”---谷歌背后的数学 |
卢昌海 | |
在如今这个互联网时代， 有一家家喻户晓的公司， 它自 1998 年问世以来， 在极短的时间内就声誉鹊起， 不仅超越了 所有竞争对手， 而且彻底改观了整个互联网的生态。这家公 司就是当今互联网上的第一搜索引擎： 谷歌 (Google)。 在这样一家显赫的公司背后， 自然有许许多多商战故 事， 也有许许多多成功因素。但与普通商战故事不同的是， 在谷歌的成功背后起着最关键作用的却是一个数学因素。 本文要谈的就是这个数学因素。 | 1525 |
| 信息论基础(Elements of Information Theory) |
T.M. Cover,J.A. Thomas | |
介绍信息论的经典著作 目录： 1 Introduction and Preview 1 2 Entropy, Relative Entropy, and Mutual Information 13 3 Asymptotic Equipartition Property 57 4 Entropy Rates of a Stochastic Process 71 5 Data Compression 103 6 Gambling and Data Compression 159 7 Channel Capacity 183 8 Differential Entropy 243 9 Gaussian Channel 261 10 Rate Distortion Theory 301 11 Information Theory and Statistics 347 12 Maximum Entropy 409 13 Universal Source Coding 427 14 Kolmogorov Complexity 463 15 Network Information Theory 509 16 Information Theory and Portfolio Theory 613 17 Inequalities in Information Theory 657 | 863 |
| Limit distributions for sums of independent random variables |
Gnedenko B Kolmogorov A.N. | |
此书介绍广义的中心极限定理 | 694 |
| Size-Dependency of Income Distributions and Its Implications |
Jiang Zhang,You Gui Wang | |
This paper highlights the size-dependency of income distributions, i.e. the income distribution curves change with the population of a country systematically. By using the generalized Lotka-Volterra model to fit the empirical income data in the United States during 1996-2007, we found an important parameter $\lambda$ can scale with a $\beta$ power of the size (population) of U.S. in that year. We pointed out that the size-dependency of the income distributions, which is a very important property but seldom addressed by previous studies, has two non-trivial implications: (1) the allometric growth pattern, i.e. the power law relationship between population and GDP in different years, which can be mathematically derived from the size-dependent income distributions and also supported by the empirical data; (2) the connection with the anomalous scaling for the probability density function in critical phenomena since the re-scaled form of the income distributions has the exactly same mathematical expression for the limit distribution of the sum of many correlated random variables asymptotically. | 843 |
| 2010年9月10日以前的头脑风暴论坛数据 |
jake | |
该文件为2010年9月10日以前的头脑风暴论坛的所有数据，其中数据库被存储为.xml文件格式，数据表仅有一个包括了所有作者、回复线索等信息，大家可以利用论坛上的viewarticle.asp文件获得相应文章的标题。readme.txt为对数据域的说明 | 939 |
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