Zipf’s law is one of the few quantitative reproducible regularities found in e- nomics. It states that, for most countries, the size distributions of cities and of rms (with additional examples found in many other scienti c elds) are power laws with a speci c exponent: the number of cities and rms with a size greater thanS is inversely proportional toS. Most explanations start with Gibrat’s law of proportional growth but need to incorporate additional constraints and ingredients introducing deviations from it. Here, we present a general theoretical derivation of Zipf’s law, providing a synthesis and extension of previous approaches. First, we show that combining Gibrat’s law at all rm levels with random processes of rm’s births and deaths yield Zipf’s law under a “balance” condition between a rm’s growth and death rate. We nd that Gibrat’s law of proportionate growth does not need to be strictly satis ed. As long as the volatility of rms’ sizes increase asy- totically proportionally to the size of the rm and that the instantaneous growth rate increases not faster than the volatility, the distribution of rm sizes follows Zipf’s law. This suggests that the occurrence of very large rms in the distri- tion of rm sizes described by Zipf’s law is more a consequence of random growth than systematic returns: in particular, for large rms, volatility must dominate over the instantaneous growth rate.
Knighting in sequence biology Edward N. Trifonov Genome classification, construction of phylogenetic trees, became today a major approach in studying evolutionary relatedness of various species in their vast - versity. Although the modern genome clustering delivers the trees which are very similar to those generated by classical means, and basic terminology is the same, the phenotypic traits and habitats are not anymore the playground for the classi- cation. The sequence space is the playground now. The phenotypic traits are - placed by sequence characteristics, “words”, in particular. Matter-of-factually, the phenotype and genotype merged, to confusion of both classical and modern p- logeneticists. Accordingly, a completely new vocabulary of stringology, information theory and applied mathematics took over. And a new brand of scientists emerged – those who do know the math and, simultaneously, (do?) know biology. The book is written by the authors of this new brand. There is no way to test their literacy in biology, as no biologist by training would even try to enter into the elite circle of those who masters their almost occult language. But the army of - formaticians, formal linguists, mathematicians humbly (or aggressively) longing to join modern biology, got an excellent introduction to the field of genome cl- tering, written by the team of their kin.
Customer Loyalty Isn't Enough—Grow Your Share of Wallet The Wallet Allocation Rule is a revolutionary, definitive guide for winning the battle for share of customers' hearts, minds, and wallets. Backed by rock-solid science published in the Harvard Business Review and MIT Sloan Management Review, this landmark book introduces a new and rigorously tested approach—the Wallet Allocation Rule—that is proven to link to the most important measure of customer loyalty: share of wallet. Companies currently spend billions of dollars each year measuring and managing metrics like customer satisfaction and Net Promoter Score (NPS) to improve customer loyalty. These metrics, however, have almost no correlation to share of wallet. As a result, the returns on investments designed to improve the customer experience are frequently near zero, even negative. With The Wallet Allocation Rule, managers finally have the missing link to business growth within their grasp—the ability to link their existing metrics to the share of spending that customers allocate to their brands. Learn why improving satisfaction (or NPS) does not improve share. Apply the Wallet Allocation Rule to discover what really drives customer spending. Uncover new metrics that really matter to achieve growth. By applying the Wallet Allocation Rule, managers get real insight into the money they currently get from their customers, the money available to be earned by them, and what it takes to get it. The Wallet Allocation Rule provides managers with a blueprint for sustainable long-term growth.
City and Country: The Historical Evolution of Urban-Rural Systems begins with a simple assumption: every human requires, on average, two-thousand calories per day to stay alive. Tracing the ramifications of this insight leads to the caloric well: the caloric demand at one point in the environment. As population increases, the depth of the caloric well reflects this increased demand and requires a population to go further afield for resources, a condition called urban dependency. City and Country traces the structural ramifications of these dynamics as the population increased from the Paleolithic to today. We can understand urban dependency as the product of the caloric demands a population puts on a given environment, and when those demands outstrip the carry capacity of the environment, a caloric well develops that forces a community to look beyond its immediate area for resources. As the well deepens, the horizon from which resources are gathered is pushed further afield, often resulting in conflict with neighboring groups. Prior to settled villages, increases in population resulted in cultural (technological) innovations that allowed for greater use of existing resources: the broad-spectrum revolution circa 20 thousand years ago, the birth of agricultural villages 11 thousand years ago, and hierarchically organized systems of multiple settlements working together to produce enough food during the Ubaid period in Mesopotamia seven-thousand years ago—the first urban-rural systems. As cities developed, increasing population resulted in an ever-deepening morass of urban dependency that required expansion of urban-rural systems. These urban-rural dynamics today serve as an underlying logic upon which modern capitalism is built. The culmination of two decades of research into the nature of urban-rural dynamics, City and Country argues that at the heart of the logic of capitalism is an even deeper logic: urbanization is based on urban dependency.
This review volume is devoted to a discussion of analogies and differences of complex production systems OCo natural, as in biological cells, or man-made, as in economic systems or industrial production. Taking this unified look at production is based on two observations: Cells and many biological networks are complex production units that have evolved to solve production problems in a reliable and optimal way in a highly stochastic environment. On the other hand, industrial production is becoming increasingly complex and often hard to predict. As a result, modeling and control of such production networks involve many different spatial and temporal scales and decision policies for many different structures. The common themes of industrial and biological production include evolution and optimization, synchronization and self-organization, robust operation despite high stochasticity, and hierarchical dynamics. The mathematical techniques used come from dynamical systems theory, transport equations, control theory, pattern formation, graph theory, discrete event simulations, stochastic processes, and others. The application areas range from semiconductor production to supply chains, protein networks, slime molds, social networks, and whole economies.
Gordon W. Allport’s 1954 book The Nature of Prejudice not only helped mold the ways in which psychologists investigate prejudice – it also shaped US society as a whole, making a substantial contribution to the Civil Rights Movement and America’s anti-discrimination and anti-segregation laws.
The essential tool kit to achieve breakthrough sales performance improvements. Numbers don’t lie: 40 percent of all salespeople miss their targets each year. How can sales managers ensure their teams are doing everything possible? The key lies in benchmarking, which is not new for finance or manufacturing but rarely gets applied to sales. Making the Number will teach executives to embrace data-driven decision making and rely less on gut instinct. Comparing a sales force to those of relevant peers leads to many opportunities to improve performance. The authors take readers through their five-step methodology for sales benchmarking, showing how to select metrics; gather, compute, and compare internal and external data; and then actually use the data. Making the Number includes case studies of sales benchmarking in action. For example, find out how Discover Financial Services plays David to the Goliaths of MasterCard and Visa. Whether you’re a sales rep, a manager, or a CEO, this book will show you a better way to make your number.
Molecules and Their Spectroscopic Properties presents a comprehensive collection of geometrical and spectroscopic constants and collisional characteristics for molecules most important in applications, with data on: energy levels, fundamental vibrational frequencies, electron and proton affinities, dipole moments and polarizabilities, ionization potentials and effective cross sections for various elementary processes occurring in laboratory and astrophysical plasmas, chemical processes, and molecular lasers. Besides the tabulated and graphical material, the most important physical notations and fundamental relationships are included, too. The up-to-date reference data presented will be useful for specialists working in molecular spectroscopy, physics of molecular collisions, and laser physics.
Using simple models this book shows how we can gain insights into the behavior of complex systems. It is devoted to the discussion of functional self-organization in large populations of interacting active elements. The authors have chosen a series of models from physics, biochemistry, biology, sociology and economics, and systematically discuss their general properties. The book addresses researchers and graduate students in a variety of disciplines.
Storage Systems: Organization, Performance, Coding, Reliability and Their Data Processing was motivated by the 1988 Redundant Array of Inexpensive/Independent Disks proposal to replace large form factor mainframe disks with an array of commodity disks. Disk loads are balanced by striping data into strips—with one strip per disk— and storage reliability is enhanced via replication or erasure coding, which at best dedicates k strips per stripe to tolerate k disk failures. Flash memories have resulted in a paradigm shift with Solid State Drives (SSDs) replacing Hard Disk Drives (HDDs) for high performance applications. RAID and Flash have resulted in the emergence of new storage companies, namely EMC, NetApp, SanDisk, and Purestorage, and a multibillion-dollar storage market. Key new conferences and publications are reviewed in this book.The goal of the book is to expose students, researchers, and IT professionals to the more important developments in storage systems, while covering the evolution of storage technologies, traditional and novel databases, and novel sources of data. We describe several prototypes: FAWN at CMU, RAMCloud at Stanford, and Lightstore at MIT; Oracle's Exadata, AWS' Aurora, Alibaba's PolarDB, Fungible Data Center; and author's paper designs for cloud storage, namely heterogeneous disk arrays and hierarchical RAID. - Surveys storage technologies and lists sources of data: measurements, text, audio, images, and video - Familiarizes with paradigms to improve performance: caching, prefetching, log-structured file systems, and merge-trees (LSMs) - Describes RAID organizations and analyzes their performance and reliability - Conserves storage via data compression, deduplication, compaction, and secures data via encryption - Specifies implications of storage technologies on performance and power consumption - Exemplifies database parallelism for big data, analytics, deep learning via multicore CPUs, GPUs, FPGAs, and ASICs, e.g., Google's Tensor Processing Units
Learn to produce a web site that stands out from the crowd One of the web designer's greatest challenges is to create a site distinctive enough to get noticed among the millions of sites already on the web. This book examines the bond between code, content and visuals to guide you through the factors that increase your design's visibility, usability and beauty. Using this practical advice, even web designers who lack strong artistic skills can develop super sites that strengthen the message and stand out from the crowd. Most books focus primarily on graphic design principles; this one shows you how to maximize and prioritize every design decision to help your site achieve its primary purpose: showcasing your content and services Explores the bond between code, content and visuals to guide you through the factors that increase your design's visibility, usability and beauty Enables even artistically challenged web designers to create elegant, functional layouts that attract visitors and are user-friendly Every web designer can benefit from this practical advice on creating an informative, attractive, easy-to-use site that gets noticed.
This unique contribution to the ongoing discussion of language acquisition considers the Argument from the Poverty of the Stimulus in language learning in the context of the wider debate over cognitive, computational, and linguistic issues. Critically examines the Argument from the Poverty of the Stimulus - the theory that the linguistic input which children receive is insufficient to explain the rich and rapid development of their knowledge of their first language(s) through general learning mechanisms Focuses on formal learnability properties of the class of natural languages, considered from the perspective of several learning theoretic models The only current book length study of arguments for the poverty of the stimulus which focuses on the computational learning theoretic aspects of the problem
This book addresses the issue of cognitive semantics’ aspects that cannot be represented by traditional digital and logical means. The problem of creating cognitive semantics can be resolved in an indirect way. The electromagnetic waves, quantum fields, beam of light, chaos control, relativistic theory, cosmic string recognition, category theory, group theory, and so on can be used for this aim. Since the term artificial intelligence (AI) appeared, various versions of logic have been created; many heuristics for neural networks deep learning have been made; new nature-like algorithms have been suggested. At the same time, the initial digital, logical, and neural network principles of representation of knowledge in AI systems have not changed a lot. The researches of these aspects of cognitive semantics of AI are based on the author's convergent methodology, which provides the necessary conditions for purposeful and sustainable convergence of decision-making.
Search engines have become a key part of our everyday lives. Yet while much has been written about how to use search engines and how they can be improved, there has been comparatively little exploration of what the social and cultural effects might be. Like all technologies, search engines exist within a larger political, cultural, and economic environment. This volume aims to redress this balance and to address crucial questions such as: * How have search engines changed the way we organize our thoughts about the world, and how we work? * What are the ‘search engine wars', what do they portend for the future of search, and who wins or loses? * To what extent does political control of search engines, or the political influence of search engines, affect how they are used, misused, and regulated? * Does the search engine help shape our identities and interactions with others, and what implications does this have for privacy? Informed members of the information society must understand the social contexts in which search engines have been developed, what that development says about us as a society, and the role of the search engine in the global information environment. This book provides the perfect starting point.
A review of modern approaches existing nowadays in ecological modelling of forest ecosystems in boreal and temperate forests. The book contains data on contemporary approaches in intensively developed simulation modelling of forest stands, soils and whole ecosystems as well; an analysis of existing spatial forest models and their significance and development; and a comprehensive discussion of theoretical (analytical) models of forest communities. The idea of a system of forest models for more effective solving of different theoretical and practical problems is also discussed. This work is particularly useful in its critical reviewing of modern achievements in forest ecosystem modelling and its discussion of more promising trends of forest modelling with an increase of their practical significance in the near future.
This is an exciting time for Artificial Intelligence, and for Natural Language Processing in particular. Over the last five years or so, a newly revived spirit has gained prominence that promises to revitalize the whole field: the spirit of empiricism. This book introduces a new approach to the important NLP issue of automatic ambiguity resolution, based on statistical models of text. This approach is compared with previous work and proved to yield higher accuracy for natural language analysis. An effective implementation strategy is also described, which is directly useful for natural language analysis. The book is noteworthy for demonstrating a new empirical approach to NLP; it is essential reading for researchers in natural language processing or computational linguistics.
This book constitutes the refereed proceedings of the 7th International Conference on Computational Linguistics and Intelligent Text Processing, held in February 2006. The 43 revised full papers and 16 revised short papers presented together with three invited papers were carefully reviewed and selected from 176 submissions. The papers are structured into two parts and organized in topical sections on computational linguistics research.
Why has identity become so central to judging art today? Why are some groups reluctant to defend free speech within culture? Has state support made artists poorer not richer? How does the movement for social justice influence cultural production? Why is Post-Modernism dominant in the art world? Why are consumers of comic books so bitterly divided? In Culture War: Art, Identity Politics and Cultural Entryism Alexander Adams examines a series of pressing issues in today's culture: censorship, Islamism, Feminism, identity politics, historical reparations and public arts policy. Through a series of linked essays, Culture War exposes connections between seemingly unrelated events and trends in high and popular cultures. From fine art to superhero comics, from political cartoons to museum policy, certain persistent ideas underpin the most contentious issues today. Adams draws on history, philosophy, politics and cultural criticism to explain the reasoning of creators, consumers and critics and to expose some uncomfortable truths.
Urban Dependency investigates the risks of urban populations that cannot survive without the massive consumption of basic rural products like food, textiles, fossil fuels, and other energy-rich goods that are harvested by a shrinking rural base. Thomas and Fulkerson argue that though essential, rural workers and communities are poorly compensated for their labor that is both dangerous and highly exploitative. While the rural population is already shrinking, the authors predict that harsh political-economic conditions will only fuel further rural-urban migration, worsening the problem of urban dependency. The authors apply their theory of the energy economy to explore a balance between the supply and demand of energy resources that promotes rural justice.
The Understanding Language series provides approachable, yet authoritative, introductions to all the major topics in linguistics. Ideal for students with little or no prior knowledge of linguistics, each book carefully explains the basics, emphasising understanding of the essential notions rather than arguing for a particular theoretical position. Understanding Language Change offers a complete introduction to historical linguistics and language change. The book takes a step-by-step approach, first by introducing concepts through English examples and building on this with illustrations from other languages. Key features of this introductory text include: up to date and recent case studies at the end of each chapter chapter summaries and exercises that feature a wide range of languages coverage of application of historical linguistics in each chapter glossary of terms This book is essential reading for any students studying Historical Linguistics for the first time.
Cities, Change, and Conflict was one of the first texts to embrace the perspective of political economy as its main explanatory framework, and then complement it with the rich contributions found in the human ecology perspective. Although its primary focus is on North American cities, the book contains several chapters on cities in other parts of the world, including Europe and developing nations, providing both historical and contemporary accounts on the impact of globalization on urban development. This edition features new coverage of important recent developments affecting urban life, including the implications of racial conflict in Ferguson, Missouri , and elsewhere, recent presidential urban strategies, the new waves of European refugees, the long-term impacts of the Great Recession as seen through the lens of Detroit’s bankruptcy, new and emerging inequalities, and an extended look into Sampson’s Great American City. Beyond examining the dynamics that shape the form and functionality of cities, the text surveys the experience of urban life among different social groups, including immigrants, African Americans,women, and members of different social classes. It illuminates the workings of the urban economy, local and federal governments, and the criminal justice system, and also addresses policy debates and decisions that affect almost every aspect of urbanization and urban life.
International criminal law and justice is a flourishing field which has led, in recent years, to new international criminal tribunals and new mechanisms for investigation and holding criminals to account. These developments have, in turn, led to an increasing volume and greater consolidation of case law, and even more scholarly attention. The second edition of this volume of Kai Ambos' seminal treatise has been revised and rewritten in parts to provide coverage of recent developments in the 'Special Part' of international criminal law: namely, the specific crimes and sentencing. Amongst other updates, there are significant extensions of the discussion on sexual and gender-based crimes; the introduction of environmental crimes into international criminal law; further elaboration on the nexus requirement in war crimes and asymmetrical conflicts (e.g., ISIS); and reference to the newly introduced war crimes of the ICC Statute and of the peculiarities of cyber-attacks and other emerging activities. The volume complements Volume I of the treatise on issues relevant to the foundations, general part of international criminal law, and general principles of international criminal justice. Taken together with the other new editions of the three-volume series, this second edition provides an exhaustive guide to every aspect of international criminal law, from fundamental principles to procedures and implementation. Kai Ambos' Treatise remains an indispensable reference work for academics and practitioners of international criminal law.
This book investigates urbanormativity—a concept that privileges urban normalcy and desirability over rural deviance and undesirability. The “reality” section outlines its foundations—urbanization, urban-rural systems, and urban dependency. The “representation” section explores urbanormative culture by considering cultural capital, media, and identity. The last section, “everyday life,” examines urban-rural disparities in law and politics and in life within different communities. It concludes by calling for a rural justice approach that will revalue the rural.
This book surveys the well-known results and also presents a series of original results on the mathematical modeling of social networks, focusing on models of informational influence, control and confrontation. Online social networks are intended for communication, opinion exchange and information acquisition for their members, but recently, online social networks have been intensively used as the objects and means of informational control and an arena of informational confrontation. They have become a powerful informational influence tool, particularly for the manipulation of individuals, social groups and society as a whole, as well as a battlefield of information warfare (cyberwars). This book aimed at under- and postgraduate university students as well as experts in information technology and modeling of social systems and processes.
Modern World Wide Web provides a variety of services ranging from e-mail and social networking to banking and shopping. It is difficult for service providers to manage these Internet services, because: (1) they exhibit complex structural organization, where component middleware (such as Java EE) is often used as building platform, and (2) complex session- oriented client behavior makes it hard to predict what impact service management mechanisms will have on application behavior. This book presents several new and novel Internet service management techniques that target two interconnected goals: (1) providing improved Quality-of-Service guarantees to the service clients, and (2) optimizing server resource utilization. These mechanism are representatively chosen to validate the claim that exposing and using detailed information about how clients use Internet services enables mechanisms that achieve the range of goals listed above. This book should be useful to all professionals working in the area of Internet services, or anyone else who may be interested in the latest developments in this exciting area of distributed computing systems research and practice.
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